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-rw-r--r--include/actions.c500
-rw-r--r--include/actions.h29
-rw-r--r--include/lcdlib.c53
-rw-r--r--include/lcdlib.h7
-rw-r--r--include/negamax.c190
-rw-r--r--include/negamax.h10
-rw-r--r--include/nn1986.c26
-rw-r--r--include/nn1986.h2
-rw-r--r--include/tak.c664
-rw-r--r--include/tak.h53
-rw-r--r--include/tps.c351
-rw-r--r--include/tps.h8
-rw-r--r--include/tt_llcht.c27
-rw-r--r--include/tt_llcht.h9
-rw-r--r--include/weights.c10
-rw-r--r--include/weights.h3
-rw-r--r--include/xorshift64.h11
-rw-r--r--include/zobrist.c23
-rw-r--r--include/zobrist.h8
19 files changed, 1080 insertions, 904 deletions
diff --git a/include/actions.c b/include/actions.c
index 795c135..6303822 100644
--- a/include/actions.c
+++ b/include/actions.c
@@ -16,37 +16,42 @@
*/
#include "actions.h"
+#include "tak.h"
+
+#include <stdio.h>
+
+static uint8_t al_board_size;
// ===================================================================
// Helper method declarations
// ===================================================================
-#define DANGER_MIN(a,b) (((a)<(b))?(a):(b))
+#define DANGER_MIN(a, b) (((a) < (b)) ? (a) : (b))
#define CLR_STONE NUM_MASK
-static inline void
-list_append(action_list_t *list, const enum A_TYPE type,
- const int8_t loc, const uint8_t data0,
- const uint8_t data1);
+static inline void list_append(action_list_t *list, const enum A_TYPE type,
+ const int8_t loc, const uint8_t data0,
+ const uint8_t data1);
+
+static inline void list_prepend(action_list_t *list, const enum A_TYPE type,
+ const int8_t loc, const uint8_t data0,
+ const uint8_t data1);
-static inline void
-list_prepend(action_list_t *list, const enum A_TYPE type,
- const int8_t loc, const uint8_t data0,
- const uint8_t data1);
+static inline void inline_next_ply(tak_state_p state);
-static inline void
-inline_next_ply(void);
+static inline void inline_prev_ply(tak_state_p state);
-static inline void
-inline_prev_ply(void);
+static inline uint8_t check_no_overflow(tak_state_p state, const uint8_t loc,
+ const int8_t delta, const uint8_t num,
+ const uint8_t steps,
+ const uint8_t gaps);
// ===================================================================
// Exported method implementations
// ===================================================================
-int action_move_to_front(const action_t action,
- action_list_t *list) {
+int action_move_to_front(const action_t action, action_list_t *list) {
action_node_t *n = list->head;
// TODO: what if it's not in the list?
@@ -64,7 +69,6 @@ int action_move_to_front(const action_t action,
return EXIT_FAILURE;
}
-
void action_list_free(action_list_t *list) {
if (list) {
action_node_t *n = list->head, *nn;
@@ -80,7 +84,8 @@ void action_list_free(action_list_t *list) {
// Keep track of move offsets
int8_t move_deltas[4];
-void action_list_init(void) {
+void action_list_init(const uint8_t board_size) {
+ al_board_size = board_size;
move_deltas[0] = +board_size;
move_deltas[1] = -board_size;
move_deltas[2] = -1;
@@ -89,7 +94,7 @@ void action_list_init(void) {
// We bias place over move by prepending place actions and appending
// move actions to the generated list
-action_list_t *action_list_generate(void) {
+action_list_t *action_list_generate(tak_state_p state) {
action_list_t *list = malloc(sizeof(struct action_list_s));
// TODO: trap errno
@@ -103,278 +108,297 @@ action_list_t *action_list_generate(void) {
* well save on the conditional.
*/
- const uint8_t material = (ply & 1) ? black_count : white_count,
- flat = material & 0x7F,
- cap = ((ply >= 2) && (material & 0x80)),
- standing = ((ply >= 2) && flat);
+ const uint8_t material =
+ (state->ply & 1) ? state->black_count : state->white_count,
+ flat = material & 0x7F,
+ cap = ((state->ply >= 2) && (material & 0x80)),
+ standing = ((state->ply >= 2) && flat);
// Step across the board
- for (int row = 0; row < board_size; row++) {
- for (int col = 0; col < board_size; col++) {
+ for (int row = 0; row < state->board_size; row++) {
+ for (int col = 0; col < state->board_size; col++) {
// We'll need these at various points: the location of this
// square and the maximum number of stones we could pick up
- const int loc = THE_COORDS(col, row);
- const uint8_t count = DANGER_MIN(COUNT_AT(loc), board_size);
+ const int loc = THE_COORDS(al_board_size, col, row);
+ const uint8_t count = DANGER_MIN(COUNT_AT(state, loc), al_board_size);
// Only try moves after CPS and if the colour is correct
if (count) {
- if (ply >= 2 && ((colours[loc] & 1) == current_colour)) {
-
- // Pre-compute end-stops and crushes
- uint8_t end_stops[4], crushes[4] = {0, 0, 0, 0};
+ if (state->ply >= 2 &&
+ ((state->colours[loc] & 1) == state->current_colour)) {
- // These are upper bounds, not counting walls and such.
- // UP DOWN LEFT RIGHT
- end_stops[0] = DANGER_MIN(board_size - row - 1, count);
- end_stops[1] = DANGER_MIN(row, count);
- end_stops[2] = DANGER_MIN(col, count);
- end_stops[3] = DANGER_MIN(board_size - col - 1, count);
+ // Pre-compute end-stops and crushes
+ uint8_t end_stops[4], crushes[4] = {0, 0, 0, 0};
- // Now we check for caps and walls
- const uint8_t cap_top = STONE_AT(loc) == STONE_CAPSTONE;
- for (int d = 0; d < 4; d++){
- const int delta = move_deltas[d];
- const int stop = end_stops[d];
- end_stops[d] = 0;
- for (int k = 1; k <= stop; k++) {
- const enum STONE_VARIANT stone = STONE_AT(loc+k*delta);
- if (stone == STONE_STANDING) {
- if (cap_top) {
- crushes[d] = 0xFF;
- end_stops[d]++;
- }
- break;
- } else if (stone == STONE_CAPSTONE) {
- break;
- }
- end_stops[d]++;
- }
- }
- /*
- * For each direction, generate all possible ordered integer
- * partitions of 1 ≤ num ≤ count whose number of summands is
- * exactly 1 ≤ summands ≤ min(end_stops[dir], num) -- we
- * write summands as steps.
- *
- * We exploit the `gaps' bijection here and elsewhere
- * between ordered {integer partitions of n with s summands}
- * and {binary strings of length n-1 with s-1 set bits}.
- */
- for (enum MOVE_DIRECTION dir=M_UP; dir<=M_RIGHT; dir++) {
- for (uint8_t num = 1; num <= count; num++) {
- for (uint8_t steps = 1;
- steps <= end_stops[dir] && steps <= num;
- steps++) {
- uint8_t gaps =
- ((1<<(board_size - 2)) - 1) >> (board_size-steps-1);
- // For 5x5 this givess 0b0000[0XXX] where steps-1 of
- // those X's are 1s (starting with LSB) because 4-1=3
- // and 5-1=4
- do {
- /*
- * We skip the partition if it calls for multiple
- * stones at the end with a crush.
- */
- const uint8_t last_drop_check =
- (num > 1) ? (gaps & (1 << (num - 2))) : 1;
- if (crushes[dir] == 0 || last_drop_check) {
- // We have to record a crush!
- const uint8_t crush =
- (steps == end_stops[dir]) && crushes[dir];
- // Store the move
+ // These are upper bounds, not counting walls and such.
+ // UP DOWN LEFT RIGHT
+ end_stops[0] = DANGER_MIN(al_board_size - row - 1, count);
+ end_stops[1] = DANGER_MIN(row, count);
+ end_stops[2] = DANGER_MIN(col, count);
+ end_stops[3] = DANGER_MIN(al_board_size - col - 1, count);
- list_append(list, A_MOVE, loc,
- (crush << 7) | gaps,
- (dir<<4) | num);
- }
- /*
- * With thanks to
- * https://graphics.stanford.edu/~seander/bithacks.html#NextBitPermutation
- * we have the following magic to generate the next
- * permutation of steps-many set bits
- */
- uint8_t t = (gaps | (gaps - 1));
- gaps = (t + 1)
- | (((~t & -~t) - 1) >> (__builtin_ctz(gaps) + 1));
- } while (gaps && (gaps + 1 <= (1 << (num - 1))));
- }
- }
- }
- }
+ // Now we check for caps and walls
+ const uint8_t cap_top = STONE_AT(state, loc) == STONE_CAPSTONE;
+ for (int d = 0; d < 4; d++) {
+ const int delta = move_deltas[d];
+ const int stop = end_stops[d];
+ end_stops[d] = 0;
+ for (int k = 1; k <= stop; k++) {
+ const enum STONE_VARIANT stone = STONE_AT(state, loc + k * delta);
+ if (stone == STONE_STANDING) {
+ if (cap_top) {
+ crushes[d] = k;
+ end_stops[d]++;
+ }
+ break;
+ } else if (stone == STONE_CAPSTONE) {
+ break;
+ }
+ end_stops[d]++;
+ }
+ }
+ /*
+ * For each direction, generate all possible ordered integer
+ * partitions of 1 ≤ num ≤ count whose number of summands is in the
+ * range 1 ≤ # summands ≤ min(end_stops[dir], num) -- we write
+ * summands as steps.
+ *
+ * We exploit the `gaps' bijection here and elsewhere between ordered
+ * {integer partitions of n with s summands} and {binary strings of
+ * length n-1 with s-1 set bits}.
+ */
+ for (enum MOVE_DIRECTION dir = M_UP; dir <= M_RIGHT; dir++) {
+ const int8_t delta = move_deltas[dir];
+ for (uint8_t num = 1; num <= count; num++) {
+ for (uint8_t steps = 1; steps <= end_stops[dir] && steps <= num;
+ steps++) {
+ uint8_t gaps = ((1 << (al_board_size - 2)) - 1) >>
+ (al_board_size - steps - 1);
+ // For 5x5 this gives 0b0000[0XXX] where steps-1 of those X's
+ // are 1s (starting with LSB) because 4-1=3 and 5-1=4
+ do {
+ /*
+ * We skip the partition if it calls for multiple stones at
+ * the end with a crush, or if it would cause any stack to
+ * grow beyond height 15.
+ */
+ const uint8_t no_overflow =
+ check_no_overflow(state, loc, delta, num, steps, gaps);
+ const uint8_t last_drop_check =
+ (num > 1) ? (gaps & (1 << (num - 2))) : 1;
+ const uint8_t can_and_must_crush =
+ crushes[dir] == steps && last_drop_check;
+ const uint8_t crush_check =
+ can_and_must_crush || crushes[dir] != steps;
+ if (no_overflow && crush_check) {
+ // Store the move
+ list_append(list, A_MOVE, loc,
+ (can_and_must_crush << 7) | gaps,
+ (dir << 4) | num);
+ }
+ /*
+ * With thanks to
+ * https://graphics.stanford.edu/~seander/bithacks.html#NextBitPermutation
+ * we have the following magic to generate the next
+ * permutation of steps-many set bits
+ */
+ uint8_t t = (gaps | (gaps - 1));
+ gaps =
+ (t + 1) | (((~t & -~t) - 1) >> (__builtin_ctz(gaps) + 1));
+ } while (gaps && (gaps + 1 <= (1 << (num - 1))));
+ }
+ }
+ }
+ }
} // end of if (count) { ... }
else if (material) {
- // Empty square, generate placements
- if (flat) {
- list_prepend(list, A_PLACE, loc, STONE_FLAT, 0);
- if (standing)
- list_prepend(list, A_PLACE, loc, STONE_STANDING,0);
- }
- if (cap)
- list_prepend(list, A_PLACE, loc, STONE_CAPSTONE, 0);
+ // Empty square, generate placements
+ if (flat) {
+ list_prepend(list, A_PLACE, loc, STONE_FLAT, 0);
+ if (standing)
+ list_prepend(list, A_PLACE, loc, STONE_STANDING, 0);
+ }
+ if (cap)
+ list_prepend(list, A_PLACE, loc, STONE_CAPSTONE, 0);
}
}
}
return list;
}
-void action_take(const action_t action) {
+void action_take(tak_state_p state, const action_t action) {
const int8_t loc = A_GET_LOC(action);
if (A_GET_TYPE(action) == A_PLACE) {
- const uint8_t black = (current_colour == C_BLACK);
+ const uint8_t black = (state->current_colour == C_BLACK);
switch (A_GET_DATA0(action)) {
- case STONE_FLAT: {
- if (black) black_count--;
- else white_count--;
- colours[loc] = current_colour;
- celldat[loc] = NUM_INC | STONE_FLAT;
- break;
- }
- case STONE_STANDING: {
- if (black) black_count--;
- else white_count--;
- colours[loc] = current_colour;
- celldat[loc] = NUM_INC | STONE_STANDING;
- break;
- }
- default: {
- if (black) black_count &= 0x7F;
- else white_count &= 0x7F;
- colours[loc] = current_colour;
- celldat[loc] = NUM_INC | STONE_CAPSTONE;
- break;
- }
+ case STONE_FLAT: {
+ if (black)
+ state->black_count--;
+ else
+ state->white_count--;
+ state->colours[loc] = state->current_colour;
+ state->celldat[loc] = NUM_INC | STONE_FLAT;
+ break;
+ }
+ case STONE_STANDING: {
+ if (black)
+ state->black_count--;
+ else
+ state->white_count--;
+ state->colours[loc] = state->current_colour;
+ state->celldat[loc] = NUM_INC | STONE_STANDING;
+ break;
+ }
+ default: {
+ if (black)
+ state->black_count &= 0x7F;
+ else
+ state->white_count &= 0x7F;
+ state->colours[loc] = state->current_colour;
+ state->celldat[loc] = NUM_INC | STONE_CAPSTONE;
+ break;
+ }
}
} else {
/*
- * See the discussion around line 135 for an explanation of the
- * encoding. Here we are not interested in whether we crushed, it
- * will work out by anyway because we overwrite the top stone
- * type. See (*) later for when we do need to know.
+ * See the discussion around line 160 for an explanation of the encoding.
+ * Here we are not interested in whether we crushed, it will work out by
+ * anyway because we overwrite the top stone type. See (*) later for when we
+ * do need to know.
*/
const uint8_t gaps = A_GET_DATA0(action) & 0x7F,
- num = A_GET_DATA1(action) & 0x0F, // unpack
- dir = A_GET_DATA1(action) >> 4;
+ num = A_GET_DATA1(action) & 0x0F, // unpack
+ dir = A_GET_DATA1(action) >> 4;
int8_t delta = move_deltas[dir];
// Use the Kernighan method to count the set bits
int8_t steps = 1;
- for (uint8_t _gaps = gaps; _gaps; steps++) _gaps &= _gaps - 1;
+ for (uint8_t _gaps = gaps; _gaps; steps++)
+ _gaps &= _gaps - 1;
// Move top stone type to destination
- celldat[loc+steps*delta] &= CLR_STONE; // necessary for crushing
- celldat[loc+steps*delta] |= STONE_AT(loc);
- celldat[loc] &= CLR_STONE;
- celldat[loc] |= STONE_FLAT; // should be optimised out
+ state->celldat[loc + steps * delta] &= CLR_STONE; // necessary for crushing
+ state->celldat[loc + steps * delta] |= STONE_AT(state, loc);
+ state->celldat[loc] &= CLR_STONE;
+ state->celldat[loc] |= STONE_FLAT; // should be optimised out
+
+ uint8_t total = 1, gap_bit = 1 << (num - 2); // it's not important what
+ // negative shifts do here, we
+ // don't use gap_bit if num < 2
- uint8_t total = 1, gap_bit = 1 << (num - 2); // it's not important
- // what negative
- // shifts do here, we
- // don't use gap_bit
- // if num < 2
// move stuff starting at destination
for (uint8_t d = 1; d < num; d++, total++, gap_bit >>= 1) {
// We took a step, move everything over so far
if (gaps & gap_bit) {
- colours[loc+steps*delta] <<= total;
- colours[loc+steps*delta] |= colours[loc] & ((1 << total) - 1);
- colours[loc] >>= total;
- celldat[loc+steps*delta] += total*NUM_INC;
- celldat[loc] -= total*NUM_INC;
- // Reset for next step
- total = 0;
- steps--;
+ state->colours[loc + steps * delta] <<= total;
+ state->colours[loc + steps * delta] |=
+ state->colours[loc] & ((1 << total) - 1);
+ state->colours[loc] >>= total;
+ state->celldat[loc + steps * delta] += total * NUM_INC;
+ state->celldat[loc] -= total * NUM_INC;
+ // Reset for next step
+ total = 0;
+ steps--;
}
}
// Move what remains (steps == 1 here always, so we simplify)
- colours[loc+delta] <<= total;
- colours[loc+delta] |= colours[loc] & ((1 << total) - 1);
- colours[loc] >>= total;
- celldat[loc+delta] += total*NUM_INC;
- celldat[loc] -= total*NUM_INC;
+ state->colours[loc + delta] <<= total;
+ state->colours[loc + delta] |= state->colours[loc] & ((1 << total) - 1);
+ state->colours[loc] >>= total;
+ state->celldat[loc + delta] += total * NUM_INC;
+ state->celldat[loc] -= total * NUM_INC;
}
// Next ply
- inline_next_ply();
+ inline_next_ply(state);
}
-void action_undo(const action_t action) {
+void action_undo(tak_state_p state, const action_t action) {
// Previous ply
- inline_prev_ply();
+ inline_prev_ply(state);
const int8_t loc = A_GET_LOC(action);
if (A_GET_TYPE(action) == A_PLACE) {
- const uint8_t black = (current_colour == C_BLACK);
- celldat[loc] = 0;
+ const uint8_t black = (state->current_colour == C_BLACK);
+ state->celldat[loc] = 0;
if (A_GET_DATA0(action) == STONE_CAPSTONE) {
- if (black) black_count |= 0x80;
- else white_count |= 0x80;
+ if (black)
+ state->black_count |= 0x80;
+ else
+ state->white_count |= 0x80;
} else {
- if (black) black_count++;
- else white_count++;
+ if (black)
+ state->black_count++;
+ else
+ state->white_count++;
}
} else {
// See action_take for comments, this is the time reversal, but
// there is one caveat -- undoing a crush! (*)
const uint8_t gaps = A_GET_DATA0(action) & 0x7F,
- crush = A_GET_DATA0(action) & 0x80,
- num = A_GET_DATA1(action) & 0x0F,
- dir = A_GET_DATA1(action) >> 4;
+ crush = A_GET_DATA0(action) & 0x80,
+ num = A_GET_DATA1(action) & 0x0F,
+ dir = A_GET_DATA1(action) >> 4;
const int8_t delta = move_deltas[dir];
int8_t steps = 1;
uint8_t gap_bit = 1, total = 1;
for (int8_t d = 1; d < num; d++, total++, gap_bit <<= 1) {
if (gaps & gap_bit) {
- colours[loc] <<= total;
- colours[loc] |= colours[loc+steps*delta] & ((1 << total) - 1);
- colours[loc+steps*delta] >>= total;
- celldat[loc] += total*NUM_INC;
- celldat[loc+steps*delta] -= total*NUM_INC;
- total = 0;
- steps++;
+ state->colours[loc] <<= total;
+ state->colours[loc] |=
+ state->colours[loc + steps * delta] & ((1 << total) - 1);
+ state->colours[loc + steps * delta] >>= total;
+ state->celldat[loc] += total * NUM_INC;
+ state->celldat[loc + steps * delta] -= total * NUM_INC;
+ total = 0;
+ steps++;
}
}
- colours[loc] <<= total;
- colours[loc] |= colours[loc+steps*delta] & ((1 << total) - 1);
- colours[loc+steps*delta] >>= total;
+ state->colours[loc] <<= total;
+ state->colours[loc] |=
+ state->colours[loc + steps * delta] & ((1 << total) - 1);
+ state->colours[loc + steps * delta] >>= total;
- celldat[loc] += total*NUM_INC;
+ state->celldat[loc] += total * NUM_INC;
// celldat[loc] &= CLR_STONE; is not necessary, as STONE_FLAT == 0
- celldat[loc] |= STONE_AT(loc+steps*delta);
- celldat[loc+steps*delta] -= total*NUM_INC;
- celldat[loc+steps*delta] &= CLR_STONE;
+ state->celldat[loc] |= STONE_AT(state, loc + steps * delta);
+ state->celldat[loc + steps * delta] -= total * NUM_INC;
+ state->celldat[loc + steps * delta] &= CLR_STONE;
if (crush) {
- celldat[loc+steps*delta] |= STONE_STANDING;
+ state->celldat[loc + steps * delta] |= STONE_STANDING;
} else {
- celldat[loc+steps*delta] |= STONE_FLAT; // should be optimised out
+ state->celldat[loc + steps * delta] |=
+ STONE_FLAT; // should be optimised out
}
}
}
-void action_to_ptn(const action_t action, char* out_ptn) {
+void action_to_ptn(const action_t action, char *out_ptn) {
const int8_t loc = A_GET_LOC(action);
if (A_GET_TYPE(action) == A_PLACE) {
- generate_place(loc, A_GET_DATA0(action), out_ptn);
+ generate_place(al_board_size, loc, A_GET_DATA0(action), out_ptn);
} else {
const uint8_t gaps = A_GET_DATA0(action) & 0x7F,
- num = A_GET_DATA1(action) & 0x0F, // unpack
- dir = A_GET_DATA1(action) >> 4;
+ num = A_GET_DATA1(action) & 0x0F, // unpack
+ dir = A_GET_DATA1(action) >> 4;
- uint8_t drops[board_size]; // we only ever need board_size-1 in
- // drops actually, the last spot is to
- // skip a bounds check at (**)
+ uint8_t drops[al_board_size]; // we only ever need al_board_size-1 in drops
+ // actually, the last spot is to skip a bounds
+ // check at (**)
uint8_t mask = 1, steps = 0;
// Translate to a drop sequence
- drops[0] = 1; mask = 1;
+ drops[0] = 1;
+ mask = 1;
for (uint8_t d = 1; d < num; d++) {
if (gaps & mask) {
- steps++;
- drops[steps] = 1; // (**) no bounds check
+ steps++;
+ drops[steps] = 1; // (**) no bounds check
} else {
- drops[steps] += 1;
+ drops[steps] += 1;
}
mask <<= 1;
}
- generate_move(loc, dir, steps+1, drops, out_ptn);
+ generate_move(al_board_size, loc, dir, steps + 1, drops, out_ptn);
}
}
@@ -382,10 +406,9 @@ void action_to_ptn(const action_t action, char* out_ptn) {
// Helper method implementations
// ===================================================================
-static inline void
-list_append(action_list_t *list, const enum A_TYPE type,
- const int8_t loc, const uint8_t data0,
- const uint8_t data1) {
+static inline void list_append(action_list_t *list, const enum A_TYPE type,
+ const int8_t loc, const uint8_t data0,
+ const uint8_t data1) {
action_node_t *new = malloc(sizeof(action_node_t));
// TODO: trap errno
@@ -403,10 +426,9 @@ list_append(action_list_t *list, const enum A_TYPE type,
list->length++;
}
-static inline void
-list_prepend(action_list_t *list, const enum A_TYPE type,
- const int8_t loc, const uint8_t data0,
- const uint8_t data1) {
+static inline void list_prepend(action_list_t *list, const enum A_TYPE type,
+ const int8_t loc, const uint8_t data0,
+ const uint8_t data1) {
action_node_t *new = malloc(sizeof(action_list_t));
// TODO: trap errno
@@ -421,24 +443,46 @@ list_prepend(action_list_t *list, const enum A_TYPE type,
list->length++;
}
-static inline void
-inline_next_ply(void) {
- ply++;
- if (ply == 2) {
- current_colour = C_WHITE;
+static inline void inline_next_ply(tak_state_p state) {
+ state->ply++;
+ if (state->ply == 2) {
+ state->current_colour = C_WHITE;
} else {
- if (current_colour == C_BLACK) current_colour = C_WHITE;
- else current_colour = C_BLACK;
+ if (state->current_colour == C_BLACK)
+ state->current_colour = C_WHITE;
+ else
+ state->current_colour = C_BLACK;
}
}
-static inline void
-inline_prev_ply(void) {
- if (ply>0) ply--;
- if (ply == 1) {
- current_colour = C_WHITE;
+static inline void inline_prev_ply(tak_state_p state) {
+ if (state->ply > 0)
+ state->ply--;
+ if (state->ply == 1) {
+ state->current_colour = C_WHITE;
} else {
- if (current_colour == C_BLACK) current_colour = C_WHITE;
- else current_colour = C_BLACK;
+ if (state->current_colour == C_BLACK)
+ state->current_colour = C_WHITE;
+ else
+ state->current_colour = C_BLACK;
+ }
+}
+
+static inline uint8_t check_no_overflow(tak_state_p state, const uint8_t loc,
+ const int8_t delta, const uint8_t num,
+ const uint8_t steps,
+ const uint8_t gaps) {
+ uint8_t total = 1, gap_bit = 1 << (num - 2), step = steps;
+ for (uint8_t d = 1; d < num; d++, total++, gap_bit >>= 1) {
+ if (gaps & gap_bit) {
+ if (COUNT_AT(state, loc + step * delta) + total > 15)
+ return 0;
+ step--;
+ total = 0;
+ }
}
+ if (COUNT_AT(state, loc + delta) + total > 15)
+ return 0;
+
+ return 1;
}
diff --git a/include/actions.h b/include/actions.h
index 8df9392..1550cce 100644
--- a/include/actions.h
+++ b/include/actions.h
@@ -18,8 +18,8 @@
#ifndef ACTIONS_H
#define ACTIONS_H
-#include <stdlib.h>
#include <stdint.h>
+#include <stdlib.h>
#include <tak.h>
@@ -33,16 +33,15 @@ typedef uint32_t action_t;
#define A_DATA1_SHIFT 24
#define A_DATA0_SHIFT 16
-#define A_LOC_SHIFT 8
+#define A_LOC_SHIFT 8
-#define A_GET_DATA1(a) (enum A_TYPE)((a)>>A_DATA1_SHIFT)
-#define A_GET_DATA0(a) (int8_t)(((a)>>A_DATA0_SHIFT) & 0xFF)
-#define A_GET_LOC(a) (uint8_t)(((a)>>A_LOC_SHIFT) & 0xFF)
-#define A_GET_TYPE(a) (uint8_t)((a) & 0xFF)
-#define A_BUILD(type,loc,data0,data1) ((type) \
- | (loc) << A_LOC_SHIFT \
- | (data0) << A_DATA0_SHIFT \
- | (data1) << A_DATA1_SHIFT)
+#define A_GET_DATA1(a) (enum A_TYPE)((a) >> A_DATA1_SHIFT)
+#define A_GET_DATA0(a) (int8_t)(((a) >> A_DATA0_SHIFT) & 0xFF)
+#define A_GET_LOC(a) (uint8_t)(((a) >> A_LOC_SHIFT) & 0xFF)
+#define A_GET_TYPE(a) (uint8_t)((a)&0xFF)
+#define A_BUILD(type, loc, data0, data1) \
+ ((type) | (loc) << A_LOC_SHIFT | (data0) << A_DATA0_SHIFT | \
+ (data1) << A_DATA1_SHIFT)
typedef struct action_node_s {
struct action_node_s *next;
@@ -64,15 +63,15 @@ extern int8_t move_deltas[4];
// Methods
// ===================================================================
-void action_list_init(void);
+void action_list_init(const uint8_t board_size);
void action_list_free(action_list_t *list);
-action_list_t *action_list_generate(void);
+action_list_t *action_list_generate(tak_state_p state);
int action_move_to_front(const action_t action, action_list_t *list);
-void action_take(const action_t action);
-void action_undo(const action_t action);
+void action_take(tak_state_p state, const action_t action);
+void action_undo(tak_state_p state, const action_t action);
-void action_to_ptn(const action_t action, char* out_ptn);
+void action_to_ptn(const action_t action, char *out_ptn);
#endif
diff --git a/include/lcdlib.c b/include/lcdlib.c
index 69d6df0..beced28 100644
--- a/include/lcdlib.c
+++ b/include/lcdlib.c
@@ -17,38 +17,32 @@
#include "lcdlib.h"
-static char previous_lines[LCD_HEIGHT][LCD_WIDTH+1];
-static const char* esc = "\x1B[L";
+static char previous_lines[LCD_HEIGHT][LCD_WIDTH + 1];
+static const char *esc = "\x1B[L";
static FILE *lcd = NULL;
static int line_idx;
-int
-lcd_begin(void) {
+int lcd_begin(void) {
lcd = fopen("/dev/lcd", "w");
- if (lcd == NULL) return EXIT_FAILURE;
+ if (lcd == NULL)
+ return EXIT_FAILURE;
lcd_clear();
return EXIT_SUCCESS;
}
-void
-lcd_end(void) {
- fclose(lcd);
-}
+void lcd_end(void) { fclose(lcd); }
-void
-lcd_set_blink(void) {
+void lcd_set_blink(void) {
fprintf(lcd, "%sB", esc);
fflush(lcd);
}
-void
-lcd_stop_blink(void) {
+void lcd_stop_blink(void) {
fprintf(lcd, "%sb", esc);
fflush(lcd);
}
-void
-lcd_clear(void) {
+void lcd_clear(void) {
line_idx = 0;
for (int y = 0; y + 1 < LCD_HEIGHT; y++) {
fprintf(lcd, "%sy%dx0;%sk", esc, y, esc);
@@ -57,18 +51,17 @@ lcd_clear(void) {
fflush(lcd);
}
-void
-lcd_put_line(const enum LCD_WRITE_MODE mode, const char *line) {
+void lcd_put_line(const enum LCD_WRITE_MODE mode, const char *line) {
char last_line = 0;
if (line_idx == LCD_HEIGHT) {
if (mode == L_SCROLL) {
// If we're at the bottom, ``shift'' everything up
for (int y = 1; y < LCD_HEIGHT; y++) {
- // Go to the start of row y, clear the line, and print the
- // previous string there
- fprintf(lcd, "%sy%dx0;%sk%s", esc, y-1, esc, previous_lines[y]);
- // Overwrite the stored previous line with the next
- strncpy(previous_lines[y-1], previous_lines[y], LCD_WIDTH+1);
+ // Go to the start of row y, clear the line, and print the
+ // previous string there
+ fprintf(lcd, "%sy%dx0;%sk%s", esc, y - 1, esc, previous_lines[y]);
+ // Overwrite the stored previous line with the next
+ strncpy(previous_lines[y - 1], previous_lines[y], LCD_WIDTH + 1);
}
}
last_line = 1;
@@ -77,20 +70,20 @@ lcd_put_line(const enum LCD_WRITE_MODE mode, const char *line) {
fprintf(lcd, "%sy%dx0;%sk%s", esc, line_idx, esc, line);
fflush(lcd);
// Store this line, null-terminate!
- if (last_line) line_idx--;
- strncpy(previous_lines[line_idx], line, LCD_WIDTH+1);
+ if (last_line)
+ line_idx--;
+ strncpy(previous_lines[line_idx], line, LCD_WIDTH + 1);
previous_lines[line_idx][LCD_WIDTH] = 0;
- if (mode == L_SCROLL && line_idx < LCD_HEIGHT) line_idx++;
+ if (mode == L_SCROLL && line_idx < LCD_HEIGHT)
+ line_idx++;
}
-void
-lcd_printf_line(const enum LCD_WRITE_MODE mode,
- const char *format, ...) {
- char buf[LCD_WIDTH+1];
+void lcd_printf_line(const enum LCD_WRITE_MODE mode, const char *format, ...) {
+ char buf[LCD_WIDTH + 1];
va_list(args);
va_start(args, format);
- vsnprintf(buf, LCD_WIDTH+1, format, args);
+ vsnprintf(buf, LCD_WIDTH + 1, format, args);
va_end(args);
lcd_put_line(mode, buf);
diff --git a/include/lcdlib.h b/include/lcdlib.h
index c514ba0..d8225c2 100644
--- a/include/lcdlib.h
+++ b/include/lcdlib.h
@@ -15,16 +15,16 @@
along with ct. If not, see <https://www.gnu.org/licenses/>.
*/
-#include <stdlib.h>
#include <stdarg.h>
#include <stdio.h>
+#include <stdlib.h>
#include <string.h>
// ===================================================================
// Types
// ===================================================================
-#define LCD_WIDTH 16
+#define LCD_WIDTH 16
#define LCD_HEIGHT 2
enum LCD_WRITE_MODE { L_OVERWRITE, L_SCROLL };
@@ -42,5 +42,4 @@ void lcd_stop_blink(void);
void lcd_put_line(const enum LCD_WRITE_MODE mode, const char *line);
-void lcd_printf_line(const enum LCD_WRITE_MODE mode,
- const char *format, ...);
+void lcd_printf_line(const enum LCD_WRITE_MODE mode, const char *format, ...);
diff --git a/include/negamax.c b/include/negamax.c
index e85aba9..0f2c450 100644
--- a/include/negamax.c
+++ b/include/negamax.c
@@ -16,6 +16,7 @@
*/
#include "negamax.h"
+#include "actions.h"
// ===================================================================
// Variables
@@ -30,43 +31,40 @@ static uint64_t negamax_best_action;
// Helper declarations
// ===================================================================
-static float negamax(const uint8_t cur_depth, const uint8_t init_depth,
- float alpha, float beta,
- const float colour, const uint64_t hash);
+static float negamax(tak_state_p state, const uint8_t cur_depth,
+ const uint8_t init_depth, float alpha, float beta,
+ const float colour, const uint64_t hash);
// ===================================================================
// Exported functions
// ===================================================================
void negamax_init(const uint8_t new_board_size) {
- board_size = new_board_size;
- action_list_init();
- zobrist_init();
- tt_init();
+ action_list_init(new_board_size);
+ zobrist_init(new_board_size);
+ tt_init();
}
-void negamax_free(void) {
- zobrist_free();
-}
+void negamax_free(void) { zobrist_free(); }
-float negamax_generate(void) {
- // We need to start with something outside of [-∞,∞] because those
- // values are wins
- const float safe_infty = infty + 1;
- float result = -infty;
+float negamax_generate(tak_state_p state) {
+ // We need to start with something outside of [-∞,∞] because those
+ // values are wins
+ const float safe_infty = infty + 1;
+ float result = -infty;
- negamax_best_action = -1;
+ negamax_best_action = -1;
- tt_init();
- for (int d = 1; d <= negamax_search_depth; d++) {
- result = negamax(d, d, -safe_infty, safe_infty,
- (ply & 1) ? +1.0 : -1.0, zobrist_compute());
- }
- tt_free();
+ tt_init();
+ for (int d = 1; d <= negamax_search_depth; d++) {
+ result = negamax(state, d, d, -safe_infty, safe_infty,
+ (state->ply & 1) ? +1.0 : -1.0, zobrist_compute(state));
+ }
+ tt_free();
- action_to_ptn(negamax_best_action, negamax_ptn);
+ action_to_ptn(negamax_best_action, negamax_ptn);
- return result;
+ return result;
}
// ===================================================================
@@ -78,89 +76,95 @@ float negamax_generate(void) {
static enum TT_FLAG flag;
static enum WIN_TYPE w;
-static float negamax(const uint8_t cur_depth, const uint8_t init_depth,
- float alpha, float beta,
- const float colour, const uint64_t hash) {
+static float negamax(tak_state_p state, const uint8_t cur_depth,
+ const uint8_t init_depth, float alpha, float beta,
+ const float colour, const uint64_t hash) {
- tt_entry_t *entry = tt_seek(hash);
+ tt_entry_t *entry = tt_seek(hash);
- // CAUTION: ≥ breaks search stability (vs =) on shallow depths
- if (entry != NULL && entry->depth >= cur_depth) {
- if (entry->flag == TT_EXACT) {
- return entry->value;
- } else if (entry->flag == TT_LOWERBOUND && entry->value > alpha) {
- alpha = entry->value;
- } else if (entry->flag == TT_UPPERBOUND && entry->value < beta) {
- beta = entry->value;
- }
- if (alpha >= beta) return entry->value;
+ // CAUTION: ≥ breaks search stability (vs =) on shallow depths
+ if (entry != NULL && entry->depth >= cur_depth) {
+ if (entry->flag == TT_EXACT) {
+ return entry->value;
+ } else if (entry->flag == TT_LOWERBOUND && entry->value > alpha) {
+ alpha = entry->value;
+ } else if (entry->flag == TT_UPPERBOUND && entry->value < beta) {
+ beta = entry->value;
}
+ if (alpha >= beta)
+ return entry->value;
+ }
- action_list_t *list;
- if ((list = action_list_generate()) == NULL)
- return alpha; // should never happen!
+ action_list_t *list;
+ if ((list = action_list_generate(state)) == NULL)
+ return alpha; // should never happen!
- if (entry != NULL) {
- action_move_to_front(entry->action, list);
- }
-
- if (init_depth > 1 && cur_depth == init_depth) {
- action_move_to_front(negamax_best_action, list);
- }
+ if (entry != NULL) {
+ action_move_to_front(entry->action, list);
+ }
- // TODO: what to do if this is never written to?
- action_t best_action = list->head->action;
- float best_value = -infty;
+ if (init_depth > 1 && cur_depth == init_depth) {
+ action_move_to_front(negamax_best_action, list);
+ }
- for (action_node_t *node=list->head; node!=NULL; node=node->next) {
- negamax_display_progress(cur_depth, init_depth, list->length);
+ // TODO: what to do if this is never written to?
+ action_t best_action = list->head->action;
+ float best_value = -infty;
- action_take(node->action);
+ for (action_node_t *node = list->head; node != NULL; node = node->next) {
+ negamax_display_progress(cur_depth, init_depth, list->length);
- // Compute the value of the node
- float node_value;
- if (ply >= 2*board_size - 2 && (w = check_win()) < 0xFF) {
- node_value = -colour*infty;
- // Check win if far enough into the game
- if (w == WIN_ROAD_BLACK || w == WIN_FLAT_BLACK) {
- node_value = colour*infty;
- } else if (w == WIN_DRAW) {
- node_value = 0;
- }
- } else if (cur_depth > 1) {
- // If nobody won, or too early and not leaf, recurse
- node_value = -negamax(cur_depth - 1, init_depth,
- -beta, -alpha,
- -colour, zobrist_compute());
- } else {
- node_value = colour * nn1986_evaluate_black_win();
- }
- action_undo(node->action);
+ action_take(state, node->action);
- if (node_value > best_value) {
- best_value = node_value;
- best_action = node->action;
- }
+ // Compute the value of the node
+ float node_value;
+ if (state->ply >= 2 * state->board_size - 2 &&
+ (w = check_win(state)) < 0xFF) {
+ node_value = -colour * infty;
+ // Check win if far enough into the game
+ if (w == WIN_ROAD_BLACK || w == WIN_FLAT_BLACK) {
+ node_value = colour * infty;
+ } else if (w == WIN_DRAW) {
+ node_value = 0;
+ }
+ } else if (cur_depth > 1) {
+ // If nobody won, or too early and not leaf, recurse
+ node_value = -negamax(state, cur_depth - 1, init_depth, -beta, -alpha,
+ -colour, zobrist_compute(state));
+ } else {
+ node_value = colour * nn1986_evaluate_black_win(state);
+ }
+ action_undo(state, node->action);
- if (best_value > alpha) alpha = best_value;
- if (alpha >= beta) break;
+ if (node_value > best_value) {
+ best_value = node_value;
+ best_action = node->action;
}
- action_list_free(list);
- if (cur_depth == init_depth) negamax_best_action = best_action;
+ if (best_value > alpha)
+ alpha = best_value;
+ if (alpha >= beta)
+ break;
+ }
- flag = TT_EXACT;
- if (best_value >= beta) flag = TT_LOWERBOUND;
- else if (best_value <= alpha) flag = TT_UPPERBOUND;
+ action_list_free(list);
+ if (cur_depth == init_depth)
+ negamax_best_action = best_action;
- if (entry == NULL) {
- tt_insert(hash, flag, cur_depth, best_value, best_action);
- } else {
- entry->flag = flag;
- entry->value = best_value;
- entry->depth = cur_depth;
- entry->action = best_action;
- }
+ flag = TT_EXACT;
+ if (best_value >= beta)
+ flag = TT_LOWERBOUND;
+ else if (best_value <= alpha)
+ flag = TT_UPPERBOUND;
+
+ if (entry == NULL) {
+ tt_insert(hash, flag, cur_depth, best_value, best_action);
+ } else {
+ entry->flag = flag;
+ entry->value = best_value;
+ entry->depth = cur_depth;
+ entry->action = best_action;
+ }
- return best_value;
+ return best_value;
}
diff --git a/include/negamax.h b/include/negamax.h
index e491baa..eedb7dd 100644
--- a/include/negamax.h
+++ b/include/negamax.h
@@ -15,12 +15,12 @@
along with ct. If not, see <https://www.gnu.org/licenses/>.
*/
-#include <stdint.h>
#include <math.h>
+#include <stdint.h>
-#include <tak.h>
#include <actions.h>
#include <nn1986.h>
+#include <tak.h>
#include <tt_llcht.h>
#include <zobrist.h>
@@ -33,8 +33,8 @@ extern char negamax_ptn[9];
extern uint8_t negamax_search_depth;
extern void negamax_display_progress(const uint8_t cur_depth,
- const uint8_t init_depth,
- const uint32_t length);
+ const uint8_t init_depth,
+ const uint32_t length);
// ===================================================================
// Methods
@@ -50,4 +50,4 @@ void negamax_free(void);
* `negamax_ptn', and return its value. The `negamax_display_progress'
* function is called on every new square at the top level.
*/
-float negamax_generate(void);
+float negamax_generate(tak_state_p state);
diff --git a/include/nn1986.c b/include/nn1986.c
index b9c551c..117a034 100644
--- a/include/nn1986.c
+++ b/include/nn1986.c
@@ -28,22 +28,22 @@ static float dense1[DENSE_NUM];
static float output[2];
#define RELU(x) ((x) = ((x) < 0) ? 0 : (x))
-float nn1986_evaluate_black_win(void) {
+float nn1986_evaluate_black_win(tak_state_p state) {
/* --------------- *
* Populate input *
* --------------- */
- for (unsigned int y = 0; y < board_size; y++) {
- for (unsigned int x = 0; x < board_size; x++) {
- const unsigned int loc = x + y * board_size;
- const unsigned int count = COUNT_AT(loc);
+ for (unsigned int y = 0; y < state->board_size; y++) {
+ for (unsigned int x = 0; x < state->board_size; x++) {
+ const unsigned int loc = x + y * state->board_size;
+ const unsigned int count = COUNT_AT(state, loc);
float lookup = 0;
if (count > 0) {
- if (STONE_AT(loc) == STONE_STANDING) {
- lookup = (colours[loc] & 1) ? +0.25 : -0.25;
- } else if (STONE_AT(loc) == STONE_CAPSTONE) {
- lookup = (colours[loc] & 1) ? +1.00 : -1.00;
+ if (STONE_AT(state, loc) == STONE_STANDING) {
+ lookup = (state->colours[loc] & 1) ? +0.25 : -0.25;
+ } else if (STONE_AT(state, loc) == STONE_CAPSTONE) {
+ lookup = (state->colours[loc] & 1) ? +1.00 : -1.00;
} else {
- lookup = (colours[loc] & 1) ? +0.50 : -0.50;
+ lookup = (state->colours[loc] & 1) ? +0.50 : -0.50;
}
}
cur_board[3 + loc] = lookup;
@@ -53,9 +53,9 @@ float nn1986_evaluate_black_win(void) {
* Convolution layer *
* ------------------ */
// Add input of flat counts and ply parity
- cur_board[0] = (ply & 1) ? 1 : -1;
- cur_board[1] = (float)(white_count & 127) / 21.0;
- cur_board[2] = (float)(black_count & 127) / 21.0;
+ cur_board[0] = (state->ply & 1) ? 1 : -1;
+ cur_board[1] = (float)(state->white_count & 127) / 21.0;
+ cur_board[2] = (float)(state->black_count & 127) / 21.0;
/* ------------------ *
* First dense layer *
* ------------------ */
diff --git a/include/nn1986.h b/include/nn1986.h
index 4e99ac2..02dca0e 100644
--- a/include/nn1986.h
+++ b/include/nn1986.h
@@ -17,4 +17,4 @@
#include <tak.h>
-float nn1986_evaluate_black_win(void);
+float nn1986_evaluate_black_win(tak_state_p state);
diff --git a/include/tak.c b/include/tak.c
index 5fd8e9a..a5f2f44 100644
--- a/include/tak.c
+++ b/include/tak.c
@@ -16,57 +16,55 @@
*/
#include "tak.h"
+#include <stdlib.h>
// ===================================================================
-// Globals
+// Helpers
// ===================================================================
-enum WIN_TYPE won;
-uint8_t board_size;
-data_t celldat[36];
-colour_stack_t colours[36];
-enum COLOUR current_colour;
-uint8_t white_count, black_count, ply;
+#define NUM_SQUARES(board_size) (board_size * board_size)
-// ===================================================================
-// Helpers
-// ===================================================================
+tak_state_p new_tak_state(const uint8_t board_size) {
+ tak_state_p state = malloc(sizeof(struct tak_state_s));
+ reset_state(state, board_size);
+ return state;
+}
-#define NUM_SQUARES (board_size * board_size)
+void free_tak_state(tak_state_p state) { free(state); }
// ===================================================================
// General state stuff
// ===================================================================
-void
-reset_state(const uint8_t new_board_size) {
+void reset_state(tak_state_p state, const uint8_t new_board_size) {
if (new_board_size == 6) {
- board_size = 6;
- white_count = 128 | 30;
- black_count = 128 | 30;
+ state->board_size = 6;
+ state->white_count = 128 | 30;
+ state->black_count = 128 | 30;
} else {
- board_size = 5;
- white_count = 128 | 21;
- black_count = 128 | 21;
+ state->board_size = 5;
+ state->white_count = 128 | 21;
+ state->black_count = 128 | 21;
}
- ply = 0;
- won = 0xFF; // i may live to regret this hack
- current_colour = C_BLACK;
+ state->ply = 0;
+ state->won = 0xFF; // i may live to regret this hack
+ state->current_colour = C_BLACK;
- for (uint8_t k = 0; k < NUM_SQUARES; k++ ) {
- celldat[k] = 0;
+ for (uint8_t k = 0; k < NUM_SQUARES(new_board_size); k++) {
+ state->celldat[k] = 0;
}
}
-void
-next_ply(void) {
- ply++;
- if (ply == 2) {
- current_colour = C_WHITE;
+void next_ply(tak_state_p state) {
+ state->ply++;
+ if (state->ply == 2) {
+ state->current_colour = C_WHITE;
} else {
- if (current_colour == C_BLACK) current_colour = C_WHITE;
- else current_colour = C_BLACK;
+ if (state->current_colour == C_BLACK)
+ state->current_colour = C_WHITE;
+ else
+ state->current_colour = C_BLACK;
}
}
@@ -74,47 +72,57 @@ next_ply(void) {
// Placing stones
// ===================================================================
-enum ACT_RESULT
-try_place(const int8_t location, const enum COLOUR colour,
- const enum STONE_VARIANT stone)
-{
+enum ACT_RESULT try_place(tak_state_p state, const int8_t location,
+ const enum COLOUR colour,
+ const enum STONE_VARIANT stone) {
// Game is over?
- if (won < 0xFF) return GAME_END;
+ if (state->won < 0xFF)
+ return GAME_END;
// Can't place on an occupied square
- if (COUNT_AT(location)) {
+ if (COUNT_AT(state, location)) {
return ACT_ILLEGAL;
} else {
switch (stone) {
- case STONE_STANDING:
- if (ply < 2) return ACT_ILLEGAL;
- // behold the magic GCC comment which defeates
- // -Wimplicit-fallthrough:
- // fall through
- case STONE_FLAT: {
- if (colour == C_BLACK) {
- if (black_count & 127) black_count--;
- else return ACT_ILLEGAL;
- } else {
- if (white_count & 127) white_count--;
- else return ACT_ILLEGAL;
- }
- break;
+ case STONE_STANDING:
+ if (state->ply < 2)
+ return ACT_ILLEGAL;
+ // behold the magic GCC comment which defeates
+ // -Wimplicit-fallthrough:
+ // fall through
+ case STONE_FLAT: {
+ if (colour == C_BLACK) {
+ if (state->black_count & 127)
+ state->black_count--;
+ else
+ return ACT_ILLEGAL;
+ } else {
+ if (state->white_count & 127)
+ state->white_count--;
+ else
+ return ACT_ILLEGAL;
}
- case STONE_CAPSTONE: {
- if (ply < 2) return ACT_ILLEGAL;
- if (colour == C_BLACK) {
- if (black_count & 128) black_count &= 127;
- else return ACT_ILLEGAL;
- } else {
- if (white_count & 128) white_count &= 127;
- else return ACT_ILLEGAL;
- }
- break;
+ break;
+ }
+ case STONE_CAPSTONE: {
+ if (state->ply < 2)
+ return ACT_ILLEGAL;
+ if (colour == C_BLACK) {
+ if (state->black_count & 128)
+ state->black_count &= 127;
+ else
+ return ACT_ILLEGAL;
+ } else {
+ if (state->white_count & 128)
+ state->white_count &= 127;
+ else
+ return ACT_ILLEGAL;
}
+ break;
+ }
}
- colours[location] = colour;
- celldat[location] = NUM_INC | stone;
+ state->colours[location] = colour;
+ state->celldat[location] = NUM_INC | stone;
return ACT_OK;
}
}
@@ -123,59 +131,63 @@ try_place(const int8_t location, const enum COLOUR colour,
// Moving stacks
// ===================================================================
-static inline void
-push_stones(const int8_t location, const uint8_t count,
- const uint8_t new_colours,
- const enum STONE_VARIANT top_stone) {
- colours[location] = (colours[location] << count) | new_colours;
- celldat[location] = top_stone
- | ((celldat[location] + ((count << NUM_SHIFT))) & NUM_MASK);
+static inline void push_stones(tak_state_p state, const int8_t location,
+ const uint8_t count, const uint8_t new_colours,
+ const enum STONE_VARIANT top_stone) {
+ state->colours[location] = (state->colours[location] << count) | new_colours;
+ state->celldat[location] =
+ top_stone |
+ ((state->celldat[location] + ((count << NUM_SHIFT))) & NUM_MASK);
}
-enum ACT_RESULT
-try_move(const int8_t location, const enum MOVE_DIRECTION direction,
- const uint8_t steps, const uint8_t drops[5]) {
+enum ACT_RESULT try_move(tak_state_p state, const int8_t location,
+ const enum MOVE_DIRECTION direction,
+ const uint8_t steps, const uint8_t drops[5]) {
// Game is over?
- if (won < 0xFF) return GAME_END;
+ if (state->won < 0xFF)
+ return GAME_END;
// Can't do this
- if (steps == 0 || steps > board_size) return ACT_ILLEGAL;
+ if (steps == 0 || steps > state->board_size)
+ return ACT_ILLEGAL;
// Check for stones at all
- const uint8_t avail = COUNT_AT(location);
- if (avail == 0) return ACT_ILLEGAL;
+ const uint8_t avail = COUNT_AT(state, location);
+ if (avail == 0)
+ return ACT_ILLEGAL;
// Does the current player own the pile?
- if ((colours[location] & 1) != current_colour) return ACT_ILLEGAL;
+ if ((state->colours[location] & 1) != state->current_colour)
+ return ACT_ILLEGAL;
// Is the desired direction and count on the board?
int8_t delta = 0;
switch (direction) {
- case M_UP: {
- delta = +board_size;
- if (location + delta * steps > NUM_SQUARES)
- return ACT_ILLEGAL;
- break;
- };
- case M_DOWN: {
- delta = -board_size;
- if (location + delta * steps < 0)
- return ACT_ILLEGAL;
- break;
- };
- case M_RIGHT: {
- delta = +1;
- if ((location + steps * delta) / board_size
- > location / board_size)
- return ACT_ILLEGAL;
- break;
- };
- case M_LEFT: {
- delta = -1;
- // We need the extra check for zero here because, irritatingly,
- // -1 / board_size == 1 / board_size
- if ((location + steps * delta < 0) ||
- ((location + steps * delta) / board_size
- < location / board_size))
- return ACT_ILLEGAL;
- break;
- };
+ case M_UP: {
+ delta = +state->board_size;
+ if (location + delta * steps > NUM_SQUARES(state->board_size))
+ return ACT_ILLEGAL;
+ break;
+ };
+ case M_DOWN: {
+ delta = -state->board_size;
+ if (location + delta * steps < 0)
+ return ACT_ILLEGAL;
+ break;
+ };
+ case M_RIGHT: {
+ delta = +1;
+ if ((location + steps * delta) / state->board_size >
+ location / state->board_size)
+ return ACT_ILLEGAL;
+ break;
+ };
+ case M_LEFT: {
+ delta = -1;
+ // We need the extra check for zero here because, irritatingly,
+ // -1 / board_size == 1 / board_size
+ if ((location + steps * delta < 0) ||
+ ((location + steps * delta) / state->board_size <
+ location / state->board_size))
+ return ACT_ILLEGAL;
+ break;
+ };
};
// For every square in the direction
@@ -185,27 +197,25 @@ try_move(const int8_t location, const enum MOVE_DIRECTION direction,
if (drops[k] == 0)
return ACT_ILLEGAL;
// Can't drop more than BOARD_SIZE stones in a square
- if (drops[k] > board_size)
+ if (drops[k] > state->board_size)
return ACT_ILLEGAL;
// Check for overflows
- if (COUNT_AT(location+(k+1)*delta) + drops[k] > 0x0F)
+ if (COUNT_AT(state, location + (k + 1) * delta) + drops[k] > 0x0F)
return ACT_OVERFLOW;
// Check for capstone
- if (STONE_AT(location+(k+1)*delta) == STONE_CAPSTONE)
+ if (STONE_AT(state, location + (k + 1) * delta) == STONE_CAPSTONE)
return ACT_ILLEGAL;
// Check for wall
- if ( (STONE_AT(location+(k+1)*delta) == STONE_STANDING)
- // If not last drop, or not dropping just one, or not a cap
- && ( (k+1 < steps)
- || (drops[k] != 1)
- || (STONE_AT(location) != STONE_CAPSTONE) )
- )
+ if ((STONE_AT(state, location + (k + 1) * delta) == STONE_STANDING)
+ // If not last drop, or not dropping just one, or not a cap
+ && ((k + 1 < steps) || (drops[k] != 1) ||
+ (STONE_AT(state, location) != STONE_CAPSTONE)))
return ACT_ILLEGAL;
total += drops[k];
}
// Can't ask to move 0, more than board_size, or stones available
- if ( (total == 0) || (total > board_size) || (total > avail) )
+ if ((total == 0) || (total > state->board_size) || (total > avail))
return ACT_ILLEGAL;
// Nothing illegal, do it. First we add the stones to the
@@ -213,15 +223,14 @@ try_move(const int8_t location, const enum MOVE_DIRECTION direction,
uint8_t j = total;
for (uint8_t k = 0; k < steps; k++) {
j -= drops[k];
- push_stones(location+(k+1)*delta,
- drops[k],
- (colours[location] >> j) & (0xFFFF >> (0x10 - drops[k])),
- (k == steps - 1) ? STONE_AT(location) : STONE_FLAT);
+ push_stones(state, location + (k + 1) * delta, drops[k],
+ (state->colours[location] >> j) & (0xFFFF >> (0x10 - drops[k])),
+ (k == steps - 1) ? STONE_AT(state, location) : STONE_FLAT);
}
// Then we drop them from the source
- colours[location] >>= total;
- const uint8_t dec_count = celldat[location] - (total << NUM_SHIFT);
- celldat[location] = dec_count & NUM_MASK;
+ state->colours[location] >>= total;
+ const uint8_t dec_count = state->celldat[location] - (total << NUM_SHIFT);
+ state->celldat[location] = dec_count & NUM_MASK;
return ACT_OK;
}
@@ -231,9 +240,10 @@ try_move(const int8_t location, const enum MOVE_DIRECTION direction,
// ===================================================================
// Check for the presence of a road connecting opposite sides
-static enum WIN_TYPE
-check_road_colour(const enum COLOUR colour) {
- int component[NUM_SQUARES], touching[NUM_SQUARES];
+static enum WIN_TYPE check_road_colour(tak_state_p state,
+ const enum COLOUR colour) {
+ int component[NUM_SQUARES(state->board_size)],
+ touching[NUM_SQUARES(state->board_size)];
/*
We're doing a poor version of a disjoint set data structure to
@@ -249,10 +259,10 @@ check_road_colour(const enum COLOUR colour) {
the same reason we also don't do path flattening/halving or
anything.
*/
- for (int k=0; k<NUM_SQUARES; k++) {
+ for (int k = 0; k < NUM_SQUARES(state->board_size); k++) {
component[k] = k; // every square is in its own connected
// component initially
- touching[k] = 0; // and not connected to any sides
+ touching[k] = 0; // and not connected to any sides
}
// touching is the bit mask for connectivity,
@@ -260,90 +270,95 @@ check_road_colour(const enum COLOUR colour) {
// 1 2 4 8
int touch = 5;
- for (int row = 0; row < board_size; row++) {
- for (int col = 0; col < board_size; col++) {
- const int cur = THE_COORDS(col, row);
- if (COUNT_AT(cur)
- && (colours[cur] & 1) == colour
- && STONE_AT(cur) != STONE_STANDING) {
+ for (int row = 0; row < state->board_size; row++) {
+ for (int col = 0; col < state->board_size; col++) {
+ const int cur = THE_COORDS(state->board_size, col, row);
+ if (COUNT_AT(state, cur) && (state->colours[cur] & 1) == colour &&
+ STONE_AT(state, cur) != STONE_STANDING) {
- // do we have any neighbours to the left and below?
- const int left_neighbour = ((cur % board_size > 0)
- && (COUNT_AT(cur - 1)) // wont ever be out of bounds
- && ((colours[cur - 1] & 1) == colour)
- && (STONE_AT(cur - 1) != STONE_STANDING));
+ // do we have any neighbours to the left and below?
+ const int left_neighbour =
+ ((cur % state->board_size > 0) &&
+ (COUNT_AT(state, cur - 1)) // wont ever be out of bounds
+ && ((state->colours[cur - 1] & 1) == colour) &&
+ (STONE_AT(state, cur - 1) != STONE_STANDING));
- const int lowr_neighbour = ((cur >= board_size)
- && (COUNT_AT(cur - board_size))
- && ((colours[cur - board_size] & 1) == colour)
- && (STONE_AT(cur - board_size) != STONE_STANDING));
+ const int lowr_neighbour =
+ ((cur >= state->board_size) &&
+ (COUNT_AT(state, cur - state->board_size)) &&
+ ((state->colours[cur - state->board_size] & 1) == colour) &&
+ (STONE_AT(state, cur - state->board_size) != STONE_STANDING));
- // always take the component of the lower neighbour if
- // possible, failing that take the left neighbour, otherwise
- // we're not yet connected, so update our own component.
- if (lowr_neighbour) {
- // look up the root of the lower neighbour
- int root = cur - board_size;
- while (root != component[root])
- root = component[root];
- // join the set
- component[cur] = root;
- if (touch) {
- // something new
- touching[root] |= touch;
- // are we done?
- if ( (touching[root] & 0x3) == 0x3 || (touching[root] & 0xC) == 0xC)
- return (colour == C_BLACK) ? WIN_ROAD_BLACK : WIN_ROAD_WHITE;
- }
- // if we also have a left neighbour then we should `merge'
- // sets, and here we assume that the left neighbour set is
- // always smaller (may not be) for the direction of merge
- if (left_neighbour) {
- int left_root = cur - 1;
- while (left_root != component[left_root])
- left_root = component[left_root];
- // merge
- const int left_touch = touching[left_root];
- if (left_touch) {
- touching[root] |= left_touch;
- if ( (touching[root] & 0x3) == 0x3 || (touching[root] & 0xC) == 0xC)
- return (colour == C_BLACK) ? WIN_ROAD_BLACK : WIN_ROAD_WHITE;
- }
- component[left_root] = root;
- }
- } else if (left_neighbour) {
- int root = cur - 1;
- while (root != component[root])
- root = component[root];
- component[cur] = root;
- if (touch) {
- touching[root] |= touch;
- if ( (touching[root] & 0x3) == 0x3 || (touching[root] & 0xC) == 0xC)
- return (colour == C_BLACK) ? WIN_ROAD_BLACK : WIN_ROAD_WHITE;
- }
- } else if (touch) {
- // we had no left or lower neighbour, so we're on our own
- touching[cur] = touch;
- }
+ // always take the component of the lower neighbour if
+ // possible, failing that take the left neighbour, otherwise
+ // we're not yet connected, so update our own component.
+ if (lowr_neighbour) {
+ // look up the root of the lower neighbour
+ int root = cur - state->board_size;
+ while (root != component[root])
+ root = component[root];
+ // join the set
+ component[cur] = root;
+ if (touch) {
+ // something new
+ touching[root] |= touch;
+ // are we done?
+ if ((touching[root] & 0x3) == 0x3 || (touching[root] & 0xC) == 0xC)
+ return (colour == C_BLACK) ? WIN_ROAD_BLACK : WIN_ROAD_WHITE;
+ }
+ // if we also have a left neighbour then we should `merge'
+ // sets, and here we assume that the left neighbour set is
+ // always smaller (may not be) for the direction of merge
+ if (left_neighbour) {
+ int left_root = cur - 1;
+ while (left_root != component[left_root])
+ left_root = component[left_root];
+ // merge
+ const int left_touch = touching[left_root];
+ if (left_touch) {
+ touching[root] |= left_touch;
+ if ((touching[root] & 0x3) == 0x3 ||
+ (touching[root] & 0xC) == 0xC)
+ return (colour == C_BLACK) ? WIN_ROAD_BLACK : WIN_ROAD_WHITE;
+ }
+ component[left_root] = root;
+ }
+ } else if (left_neighbour) {
+ int root = cur - 1;
+ while (root != component[root])
+ root = component[root];
+ component[cur] = root;
+ if (touch) {
+ touching[root] |= touch;
+ if ((touching[root] & 0x3) == 0x3 || (touching[root] & 0xC) == 0xC)
+ return (colour == C_BLACK) ? WIN_ROAD_BLACK : WIN_ROAD_WHITE;
+ }
+ } else if (touch) {
+ // we had no left or lower neighbour, so we're on our own
+ touching[cur] = touch;
+ }
}
- if (col + 2 == board_size) touch |= 8;
- else touch &= 0x3;
+ if (col + 2 == state->board_size)
+ touch |= 8;
+ else
+ touch &= 0x3;
}
- if (row + 2 == board_size) touch = 6;
- else touch = 4;
+ if (row + 2 == state->board_size)
+ touch = 6;
+ else
+ touch = 4;
}
return 0xFF;
}
-enum WIN_TYPE
-check_win(void) {
+enum WIN_TYPE check_win(tak_state_p state) {
// Road?
enum WIN_TYPE rb, rw;
- rb = check_road_colour(C_BLACK);
- rw = check_road_colour(C_WHITE);
+ rb = check_road_colour(state, C_BLACK);
+ rw = check_road_colour(state, C_WHITE);
if (rb == WIN_ROAD_BLACK && rw == WIN_ROAD_WHITE) {
- return (ply & 1) ? rb : rw; // Dragons
+ return (state->ply & 1) ? rb : rw; // Dragons
} else if (rw == WIN_ROAD_WHITE) {
return rw;
} else if (rb == WIN_ROAD_BLACK) {
@@ -352,18 +367,21 @@ check_win(void) {
// Do we do a flat count?
int8_t total = 0, board_full = 1;
- for (uint8_t k = 0; k < NUM_SQUARES; k++) {
- if (COUNT_AT(k) == 0) {
+ for (uint8_t k = 0; k < NUM_SQUARES(state->board_size); k++) {
+ if (COUNT_AT(state, k) == 0) {
board_full = 0;
- } else if (STONE_AT(k) == STONE_FLAT) {
- total += ((colours[k] & 1) == C_BLACK) ? +1 : -1 ;
+ } else if (STONE_AT(state, k) == STONE_FLAT) {
+ total += ((state->colours[k] & 1) == C_BLACK) ? +1 : -1;
}
}
- if (black_count == 0 || white_count == 0 || board_full) {
+ if (state->black_count == 0 || state->white_count == 0 || board_full) {
// Decide based on count
- if (total > 0) return WIN_FLAT_BLACK;
- else if (total < 0) return WIN_FLAT_WHITE;
- else return WIN_DRAW;
+ if (total > 0)
+ return WIN_FLAT_BLACK;
+ else if (total < 0)
+ return WIN_FLAT_WHITE;
+ else
+ return WIN_DRAW;
}
return 0xFF;
@@ -372,38 +390,57 @@ check_win(void) {
// PTN place parser
// ===================================================================
-#define NULL 0
-
-#define ASSERT_NONEMPTY { \
- if (ptn == NULL || *ptn == 0) return PTN_INVALID; \
+#define ASSERT_NONEMPTY \
+ { \
+ if (ptn == NULL || *ptn == 0) \
+ return PTN_INVALID; \
}
-#define ASSERT_MORE { if (*ptn == 0) return PTN_INVALID; }
+#define ASSERT_MORE \
+ { \
+ if (*ptn == 0) \
+ return PTN_INVALID; \
+ }
-enum PTN_RESULT
-parse_place(char *ptn, uint8_t *out_location,
- enum STONE_VARIANT *out_stone) {
+enum PTN_RESULT parse_place(const uint8_t board_size, char *ptn,
+ uint8_t *out_location,
+ enum STONE_VARIANT *out_stone) {
ASSERT_NONEMPTY;
*out_stone = STONE_FLAT;
switch (*ptn) {
- case 'C' : { ptn++; *out_stone = STONE_CAPSTONE; break; };
- case 'S' : { ptn++; *out_stone = STONE_STANDING; break; };
- case 'F' : { ptn++; break; };
+ case 'C': {
+ ptn++;
+ *out_stone = STONE_CAPSTONE;
+ break;
+ };
+ case 'S': {
+ ptn++;
+ *out_stone = STONE_STANDING;
+ break;
+ };
+ case 'F': {
+ ptn++;
+ break;
+ };
}
ASSERT_MORE;
- if ( (*ptn < 'a') || (*ptn > '`' + board_size) ) return PTN_INVALID;
+ if ((*ptn < 'a') || (*ptn > '`' + board_size))
+ return PTN_INVALID;
*out_location = *ptn - 'a';
- ptn++; ASSERT_MORE;
+ ptn++;
+ ASSERT_MORE;
- if ( (*ptn < '1') || (*ptn > board_size + '0') ) return PTN_INVALID;
+ if ((*ptn < '1') || (*ptn > board_size + '0'))
+ return PTN_INVALID;
*out_location += board_size * (*ptn - '1');
- if (*(++ptn) > 0) return PTN_INVALID;
+ if (*(++ptn) > 0)
+ return PTN_INVALID;
return PTN_OK;
}
@@ -412,40 +449,58 @@ parse_place(char *ptn, uint8_t *out_location,
// PTN move parser
// ===================================================================
-enum PTN_RESULT
-parse_move(char *ptn, uint8_t *out_location,
- enum MOVE_DIRECTION *out_direction,
- uint8_t *out_steps, uint8_t out_drops[5]) {
+enum PTN_RESULT parse_move(const uint8_t board_size, char *ptn,
+ uint8_t *out_location,
+ enum MOVE_DIRECTION *out_direction,
+ uint8_t *out_steps, uint8_t out_drops[5]) {
ASSERT_NONEMPTY;
uint8_t picked_up = 1;
// Optionally indicate how many stones picked up
- if ( (*ptn >= '1') && (*ptn <= '0' + board_size)) {
+ if ((*ptn >= '1') && (*ptn <= '0' + board_size)) {
picked_up = *ptn - '0';
- ptn++; ASSERT_MORE;
+ ptn++;
+ ASSERT_MORE;
}
// column must be on the board
- if ( (*ptn < 'a') || (*ptn > '`' + board_size) ) return PTN_INVALID;
+ if ((*ptn < 'a') || (*ptn > '`' + board_size))
+ return PTN_INVALID;
*out_location = *ptn - 'a';
- ptn++; ASSERT_MORE;
+ ptn++;
+ ASSERT_MORE;
// row must be on the board
- if ( (*ptn < '1') || (*ptn > board_size + '0') ) return PTN_INVALID;
+ if ((*ptn < '1') || (*ptn > board_size + '0'))
+ return PTN_INVALID;
*out_location += board_size * (*ptn - '1');
- ptn++; ASSERT_MORE;
+ ptn++;
+ ASSERT_MORE;
// valid direction
switch (*ptn) {
- case '+': { *out_direction = M_UP; break; }
- case '-': { *out_direction = M_DOWN; break; }
- case '<': { *out_direction = M_LEFT; break; }
- case '>': { *out_direction = M_RIGHT; break; }
- default: return PTN_INVALID;
+ case '+': {
+ *out_direction = M_UP;
+ break;
+ }
+ case '-': {
+ *out_direction = M_DOWN;
+ break;
+ }
+ case '<': {
+ *out_direction = M_LEFT;
+ break;
+ }
+ case '>': {
+ *out_direction = M_RIGHT;
+ break;
+ }
+ default:
+ return PTN_INVALID;
}
// Handle the case 'n<column><row><direction>' as
@@ -463,11 +518,11 @@ parse_move(char *ptn, uint8_t *out_location,
uint8_t total = 0;
while (*ptn) {
// can't drop more than the carry limit, or less than 1
- if ( (*ptn < '1') || (*ptn > '0' + board_size) )
+ if ((*ptn < '1') || (*ptn > '0' + board_size))
return PTN_INVALID;
// can't move more than the size of the board in any direction
- if ( (*out_steps + 1 >= board_size) && *ptn)
+ if ((*out_steps + 1 >= board_size) && *ptn)
return PTN_INVALID;
out_drops[*out_steps] = *ptn - '0';
@@ -477,7 +532,8 @@ parse_move(char *ptn, uint8_t *out_location,
}
// Mismatch between number of stones picked up and total dropped
- if ( total != picked_up ) return PTN_INVALID;
+ if (total != picked_up)
+ return PTN_INVALID;
return PTN_OK;
}
@@ -486,16 +542,27 @@ parse_move(char *ptn, uint8_t *out_location,
// Generate PTN for place
// ===================================================================
-void
-generate_place(const uint8_t in_location,
- const enum STONE_VARIANT in_stone, char out_ptn[4]) {
+void generate_place(const uint8_t board_size, const uint8_t in_location,
+ const enum STONE_VARIANT in_stone, char out_ptn[4]) {
switch (in_stone) {
- case STONE_FLAT: { break; }
- case STONE_STANDING: { *out_ptn = 'S'; out_ptn++; break; }
- case STONE_CAPSTONE: { *out_ptn = 'C'; out_ptn++; break; }
+ case STONE_FLAT: {
+ break;
+ }
+ case STONE_STANDING: {
+ *out_ptn = 'S';
+ out_ptn++;
+ break;
+ }
+ case STONE_CAPSTONE: {
+ *out_ptn = 'C';
+ out_ptn++;
+ break;
}
- *out_ptn = 'a' + (in_location % board_size); out_ptn++;
- *out_ptn = '1' + (in_location / board_size); out_ptn++;
+ }
+ *out_ptn = 'a' + (in_location % board_size);
+ out_ptn++;
+ *out_ptn = '1' + (in_location / board_size);
+ out_ptn++;
*out_ptn = 0;
}
@@ -503,29 +570,46 @@ generate_place(const uint8_t in_location,
// Generate PTN for move
// ===================================================================
-void
-generate_move(const uint8_t in_location,
- const enum MOVE_DIRECTION in_direction,
- const uint8_t in_steps, const uint8_t in_drops[5],
- char out_ptn[10]) {
+void generate_move(const uint8_t board_size, const uint8_t in_location,
+ const enum MOVE_DIRECTION in_direction,
+ const uint8_t in_steps, const uint8_t in_drops[5],
+ char out_ptn[10]) {
uint8_t total = 0;
- for (uint8_t k = 0; k<in_steps; k++) total+=in_drops[k];
+ for (uint8_t k = 0; k < in_steps; k++)
+ total += in_drops[k];
if (total > 1) {
- *out_ptn = '0' + total; out_ptn++;
+ *out_ptn = '0' + total;
+ out_ptn++;
}
- *out_ptn = 'a' + (in_location % board_size); out_ptn++;
- *out_ptn = '1' + (in_location / board_size); out_ptn++;
+ *out_ptn = 'a' + (in_location % board_size);
+ out_ptn++;
+ *out_ptn = '1' + (in_location / board_size);
+ out_ptn++;
switch (in_direction) {
- case M_UP: { *out_ptn = '+'; break; }
- case M_DOWN: { *out_ptn = '-'; break; }
- case M_LEFT: { *out_ptn = '<'; break; }
- case M_RIGHT: { *out_ptn = '>'; break; }
- }; out_ptn++;
+ case M_UP: {
+ *out_ptn = '+';
+ break;
+ }
+ case M_DOWN: {
+ *out_ptn = '-';
+ break;
+ }
+ case M_LEFT: {
+ *out_ptn = '<';
+ break;
+ }
+ case M_RIGHT: {
+ *out_ptn = '>';
+ break;
+ }
+ };
+ out_ptn++;
for (uint8_t k = 0; (total > 1) && (k < in_steps); k++) {
- *out_ptn = '0' + in_drops[k]; out_ptn++;
+ *out_ptn = '0' + in_drops[k];
+ out_ptn++;
}
*out_ptn = 0;
@@ -535,24 +619,26 @@ generate_move(const uint8_t in_location,
// Driver
// ===================================================================
-static uint8_t
-is_not_placement(char *ptn) {
- if (ptn == 0) return 0;
- for (;;ptn++) {
+static uint8_t is_not_placement(char *ptn) {
+ if (ptn == 0)
+ return 0;
+ for (;; ptn++) {
switch (*ptn) {
- case '+':
- case '-':
- case '>':
- case '<': return 1;
- case 0: return 0;
+ case '+':
+ case '-':
+ case '>':
+ case '<':
+ return 1;
+ case 0:
+ return 0;
}
}
}
-enum ACT_RESULT
-do_ptn(char *ptn) {
+enum ACT_RESULT do_ptn(tak_state_p state, char *ptn) {
// Game over?
- if (won < 0xFF) return GAME_END;
+ if (state->won < 0xFF)
+ return GAME_END;
enum PTN_RESULT ptn_res;
enum ACT_RESULT act_res;
@@ -563,11 +649,13 @@ do_ptn(char *ptn) {
uint8_t steps, drops[5];
enum MOVE_DIRECTION direction;
// Parse it as a move
- ptn_res = parse_move(ptn, &location, &direction, &steps, drops);
+ ptn_res = parse_move(state->board_size, ptn, &location, &direction, &steps,
+ drops);
// If valid PTN, try to do it
if (ptn_res == PTN_OK) {
- if (ply < 2) return ACT_ILLEGAL;
- act_res = try_move(location, direction, steps, drops);
+ if (state->ply < 2)
+ return ACT_ILLEGAL;
+ act_res = try_move(state, location, direction, steps, drops);
} else {
return ACT_INVALID_PTN;
}
@@ -575,10 +663,10 @@ do_ptn(char *ptn) {
// It was not a move
enum STONE_VARIANT stone;
// Was it a valid placement?
- ptn_res = parse_place(ptn, &location, &stone);
+ ptn_res = parse_place(state->board_size, ptn, &location, &stone);
// If so, try it
if (ptn_res == PTN_OK)
- act_res = try_place(location, current_colour, stone);
+ act_res = try_place(state, location, state->current_colour, stone);
else
return ACT_INVALID_PTN;
}
@@ -586,16 +674,16 @@ do_ptn(char *ptn) {
if (act_res == ACT_OK) {
// Don't bother checking that the game was won early on, could be
// more conservative here :)
- if (ply >= board_size) {
- won = check_win();
- if (won < 0xFF) {
- // Winning move, but no need to update current colour
- ply++;
- return GAME_END;
+ if (state->ply >= state->board_size) {
+ state->won = check_win(state);
+ if (state->won < 0xFF) {
+ // Winning move, but no need to update current colour
+ state->ply++;
+ return GAME_END;
}
}
// Only step if the game isn't over yet
- next_ply();
+ next_ply(state);
}
return act_res;
}
diff --git a/include/tak.h b/include/tak.h
index 26f4ae6..9f458f6 100644
--- a/include/tak.h
+++ b/include/tak.h
@@ -49,60 +49,61 @@ enum WIN_TYPE {
typedef uint8_t data_t;
typedef uint16_t colour_stack_t;
+typedef struct tak_state_s {
+ data_t celldat[36];
+ colour_stack_t colours[36];
+ enum WIN_TYPE won;
+ enum COLOUR current_colour;
+ uint8_t white_count, black_count, ply, board_size;
+} * tak_state_p;
+
#define NUM_SHIFT 4
#define NUM_MASK (0xF << NUM_SHIFT) // 0b11110000
#define NUM_INC (0x1 << NUM_SHIFT) // 0b00010000
#define STONE_MASK 3 // 0b00000011
-#define STONE_AT(l) (celldat[(l)] & STONE_MASK)
-#define COUNT_AT(l) (celldat[(l)] >> NUM_SHIFT)
-#define THE_COORDS(col, row) ((col) + (row)*board_size)
-
-// ===================================================================
-// Variables
-// ===================================================================
-
-// NOTE: We only support one capstone per player and 5s or 6s games.
-
-extern enum WIN_TYPE won;
-extern uint8_t board_size;
-extern data_t celldat[36];
-extern colour_stack_t colours[36];
-extern enum COLOUR current_colour;
-extern uint8_t white_count, black_count, ply;
+#define STONE_AT(state, l) (state->celldat[(l)] & STONE_MASK)
+#define COUNT_AT(state, l) (state->celldat[(l)] >> NUM_SHIFT)
+#define THE_COORDS(board_size, col, row) ((col) + (row)*board_size)
// ===================================================================
// Methods
// ===================================================================
+tak_state_p new_tak_state(const uint8_t board_size);
+void free_tak_state(tak_state_p state);
+
// -------------------------------------------------------------------
// Game state
-void reset_state(const uint8_t new_board_size);
-void next_ply(void);
+void reset_state(tak_state_p state, const uint8_t new_board_size);
+void next_ply(tak_state_p state);
-enum ACT_RESULT try_place(const int8_t location, const enum COLOUR colour,
+enum ACT_RESULT try_place(tak_state_p state, const int8_t location,
+ const enum COLOUR colour,
const enum STONE_VARIANT stone);
-enum ACT_RESULT try_move(const int8_t location,
+enum ACT_RESULT try_move(tak_state_p state, const int8_t location,
const enum MOVE_DIRECTION direction,
const uint8_t steps, const uint8_t drops[5]);
-enum WIN_TYPE check_win(void);
+enum WIN_TYPE check_win(tak_state_p state);
// -------------------------------------------------------------------
// PTN related
-enum PTN_RESULT parse_place(char *in_ptn, uint8_t *out_location,
+enum PTN_RESULT parse_place(const uint8_t board_size, char *in_ptn,
+ uint8_t *out_location,
enum STONE_VARIANT *out_stone);
-enum PTN_RESULT parse_move(char *in_ptn, uint8_t *out_location,
+enum PTN_RESULT parse_move(const uint8_t board_size, char *in_ptn,
+ uint8_t *out_location,
enum MOVE_DIRECTION *out_direction,
uint8_t *out_steps, uint8_t out_drops[5]);
-void generate_place(const uint8_t in_location,
+void generate_place(const uint8_t board_size, const uint8_t in_location,
const enum STONE_VARIANT in_stone, char out_ptn[4]);
-void generate_move(const uint8_t in_location,
+void generate_move(const uint8_t board_size, const uint8_t in_location,
const enum MOVE_DIRECTION in_direction,
const uint8_t in_steps, const uint8_t in_drops[5],
char out_ptn[10]);
@@ -110,5 +111,5 @@ void generate_move(const uint8_t in_location,
// -------------------------------------------------------------------
// Game driver
-enum ACT_RESULT do_ptn(char *ptn);
+enum ACT_RESULT do_ptn(tak_state_p state, char *ptn);
#endif
diff --git a/include/tps.c b/include/tps.c
index 7be0e8d..ad0fe21 100644
--- a/include/tps.c
+++ b/include/tps.c
@@ -4,134 +4,166 @@
// Load TPS string
// ===================================================================
-#define TPS_ASSERT_MORE { if (*tps == 0) return TPS_INVALID; }
+#define TPS_ASSERT_MORE \
+ { \
+ if (*tps == 0) \
+ return TPS_INVALID; \
+ }
-enum TPS_RESULT
-load_tps(char* tps) {
+enum TPS_RESULT load_tps(tak_state_p state, char *tps) {
// TODO: Ensure NULL termination?
- if (tps == NULL) return TPS_INVALID;
+ if (tps == NULL)
+ return TPS_INVALID;
uint8_t prefix = 0;
// Check if we're likely of the form [TPS "blah"]
if (!strncmp(tps, "[TPS \"", 6)) {
- prefix=1;
+ prefix = 1;
// Now we can worry about just the TPS part
tps += 6;
}
// Reset everything
- reset_state(board_size);
+ reset_state(state, state->board_size);
// Parse squares, NOTE: We assume that board_size matches TPS size.
- int col = 0, row = board_size-1, skip, parsing = 1;
+ int col = 0, row = state->board_size - 1, skip, parsing = 1;
while (parsing) {
switch (*tps) {
- case ' ': {
- // we're done
- parsing = 0;
- tps++; TPS_ASSERT_MORE;
- break;
- }
- case 'x': {
- // empty squares
- tps++; TPS_ASSERT_MORE;
- skip = 0;
- if (*tps >= '2' && *tps <= '0'+board_size) {
- skip = *tps - '1';
- tps++; TPS_ASSERT_MORE;
- } else if (*tps != ',' && *tps != '/' && *tps != ' ') {
- return TPS_INVALID;
- }
- col += skip;
- if (col >= board_size + 1) return TPS_INVALID;
- break;
- }
- case '/': {
- // next row
- if (col + 1 != board_size) return TPS_INVALID;
- row--; col = 0;
- if (row < 0) return TPS_INVALID;
- tps++; TPS_ASSERT_MORE;
- break;
- }
- case ',': {
- // next column
- col++;
- if (col >= board_size) return TPS_INVALID;
- tps++; TPS_ASSERT_MORE;
- break;
+ case ' ': {
+ // we're done
+ parsing = 0;
+ tps++;
+ TPS_ASSERT_MORE;
+ break;
+ }
+ case 'x': {
+ // empty squares
+ tps++;
+ TPS_ASSERT_MORE;
+ skip = 0;
+ if (*tps >= '2' && *tps <= '0' + state->board_size) {
+ skip = *tps - '1';
+ tps++;
+ TPS_ASSERT_MORE;
+ } else if (*tps != ',' && *tps != '/' && *tps != ' ') {
+ return TPS_INVALID;
}
- default: {
- const int l = THE_COORDS(col, row);
- uint8_t num_read = 0, reading = 1;
- // Read in a stack of colours, optionally terminated by an S
- // or C to change the top stone type
- while (reading) {
- switch (*tps) {
- // Reading a stone colour
- case '2': {
- // check next letter to make sure we have the material
- tps++; TPS_ASSERT_MORE;
- if (*tps == 'C') {
- if (black_count & 128) black_count &= 127;
- else return TPS_INVALID;
- } else if (black_count & 127) {
- black_count--;
- } else return TPS_INVALID;
- colours[l] <<= 1;
- celldat[l] += NUM_INC;
- colours[l] |= 1;
- num_read++;
- break;
- }
- case '1': {
- tps++; TPS_ASSERT_MORE;
- if (*tps == 'C') {
- if (white_count & 128) white_count &= 127;
- else return TPS_INVALID;
- } else if (white_count & 127) {
- white_count--;
- } else return TPS_INVALID;
- colours[l] <<= 1;
- celldat[l] += NUM_INC;
- num_read++;
- break;
- }
- case 'S': {
- // Have we already read a stone type?
- if (STONE_AT(l) != STONE_FLAT) return TPS_INVALID;
- celldat[l] |= STONE_STANDING;
- tps++; TPS_ASSERT_MORE;
- break;
- }
- case 'C': {
- if (STONE_AT(l) != STONE_FLAT) return TPS_INVALID;
- celldat[l] |= STONE_CAPSTONE;
- tps++; TPS_ASSERT_MORE;
- break;
- }
- case ',': // fall-through
- case '/': {
- // done here
- reading=0;
- break;
- }
- default: return TPS_INVALID;
- }
- if (num_read > 0xF) return TPS_INVALID;
- }
+ col += skip;
+ if (col >= state->board_size + 1)
+ return TPS_INVALID;
+ break;
+ }
+ case '/': {
+ // next row
+ if (col + 1 != state->board_size)
+ return TPS_INVALID;
+ row--;
+ col = 0;
+ if (row < 0)
+ return TPS_INVALID;
+ tps++;
+ TPS_ASSERT_MORE;
+ break;
+ }
+ case ',': {
+ // next column
+ col++;
+ if (col >= state->board_size)
+ return TPS_INVALID;
+ tps++;
+ TPS_ASSERT_MORE;
+ break;
+ }
+ default: {
+ const int l = THE_COORDS(state->board_size, col, row);
+ uint8_t num_read = 0, reading = 1;
+ // Read in a stack of colours, optionally terminated by an S
+ // or C to change the top stone type
+ while (reading) {
+ switch (*tps) {
+ // Reading a stone colour
+ case '2': {
+ // check next letter to make sure we have the material
+ tps++;
+ TPS_ASSERT_MORE;
+ if (*tps == 'C') {
+ if (state->black_count & 128)
+ state->black_count &= 127;
+ else
+ return TPS_INVALID;
+ } else if (state->black_count & 127) {
+ state->black_count--;
+ } else
+ return TPS_INVALID;
+ state->colours[l] <<= 1;
+ state->celldat[l] += NUM_INC;
+ state->colours[l] |= 1;
+ num_read++;
+ break;
+ }
+ case '1': {
+ tps++;
+ TPS_ASSERT_MORE;
+ if (*tps == 'C') {
+ if (state->white_count & 128)
+ state->white_count &= 127;
+ else
+ return TPS_INVALID;
+ } else if (state->white_count & 127) {
+ state->white_count--;
+ } else
+ return TPS_INVALID;
+ state->colours[l] <<= 1;
+ state->celldat[l] += NUM_INC;
+ num_read++;
+ break;
+ }
+ case 'S': {
+ // Have we already read a stone type?
+ if (STONE_AT(state, l) != STONE_FLAT)
+ return TPS_INVALID;
+ state->celldat[l] |= STONE_STANDING;
+ tps++;
+ TPS_ASSERT_MORE;
+ break;
+ }
+ case 'C': {
+ if (STONE_AT(state, l) != STONE_FLAT)
+ return TPS_INVALID;
+ state->celldat[l] |= STONE_CAPSTONE;
+ tps++;
+ TPS_ASSERT_MORE;
+ break;
+ }
+ case ',': // fall-through
+ case '/': {
+ // done here
+ reading = 0;
+ break;
+ }
+ default:
+ return TPS_INVALID;
+ }
+ if (num_read > 0xF)
+ return TPS_INVALID;
}
}
+ }
}
// Now it's time to parse the ply number. First, the active player
- if (*tps != '1' && *tps != '2') return TPS_INVALID;
- ply += *tps - '1';
- tps++; TPS_ASSERT_MORE;
+ if (*tps != '1' && *tps != '2')
+ return TPS_INVALID;
+ state->ply += *tps - '1';
+ tps++;
+ TPS_ASSERT_MORE;
// Space
- if (*tps != ' ') return TPS_INVALID;
- tps++; TPS_ASSERT_MORE;
+ if (*tps != ' ')
+ return TPS_INVALID;
+ tps++;
+ TPS_ASSERT_MORE;
// Turn number, atoi doesn't detect errors so let's do it ourselves
uint8_t p = 0;
@@ -139,21 +171,27 @@ load_tps(char* tps) {
p *= 10;
if (*tps >= '0' && *tps <= '9') {
p += *tps - '0';
- } else return TPS_INVALID;
+ } else
+ return TPS_INVALID;
tps++;
- } while ( (prefix && *tps && *tps != '"') || (!prefix && *tps) );
- if (p == 0) return TPS_INVALID;
- ply += 2*(p - 1);
+ } while ((prefix && *tps && *tps != '"') || (!prefix && *tps));
+ if (p == 0)
+ return TPS_INVALID;
+ state->ply += 2 * (p - 1);
- current_colour = (ply & 1) ? C_BLACK : C_WHITE;
- if (ply < 2) current_colour = C_BLACK - current_colour;
+ state->current_colour = (state->ply & 1) ? C_BLACK : C_WHITE;
+ if (state->ply < 2)
+ state->current_colour = C_BLACK - state->current_colour;
if (prefix) {
- tps++; TPS_ASSERT_MORE;
- if (*tps != ']' ) return TPS_INVALID;
+ tps++;
+ TPS_ASSERT_MORE;
+ if (*tps != ']')
+ return TPS_INVALID;
tps++;
- if (*tps != 0) return TPS_INVALID;
+ if (*tps != 0)
+ return TPS_INVALID;
}
return TPS_OK;
@@ -163,55 +201,68 @@ load_tps(char* tps) {
// Generate TPS string
// ===================================================================
-void
-generate_tps(char *out_tps) {
+void generate_tps(tak_state_p state, char *out_tps) {
strcpy(out_tps, "[TPS \"");
out_tps += 6;
- for (int8_t row = board_size - 1; row >= 0; row--) {
- for (int8_t col = 0; col < board_size; col++) {
- const int8_t l = THE_COORDS(col, row);
- const uint8_t count = COUNT_AT(l);
+ for (int8_t row = state->board_size - 1; row >= 0; row--) {
+ for (int8_t col = 0; col < state->board_size; col++) {
+ const int8_t l = THE_COORDS(state->board_size, col, row);
+ const uint8_t count = COUNT_AT(state, l);
if (count) {
- colour_stack_t c = colours[l], s = 1<<(count - 1);
- for (int k=0; k<count; k++, s >>=1, out_tps++) {
- if (c & s) *out_tps = '2';
- else *out_tps = '1';
- }
- switch (STONE_AT(l)) {
- case STONE_CAPSTONE: {
- *out_tps = 'C'; out_tps++; break;
- }
- case STONE_STANDING: {
- *out_tps = 'S'; out_tps++; break;
- }
- default: break;
- }
+ colour_stack_t c = state->colours[l], s = 1 << (count - 1);
+ for (int k = 0; k < count; k++, s >>= 1, out_tps++) {
+ if (c & s)
+ *out_tps = '2';
+ else
+ *out_tps = '1';
+ }
+ switch (STONE_AT(state, l)) {
+ case STONE_CAPSTONE: {
+ *out_tps = 'C';
+ out_tps++;
+ break;
+ }
+ case STONE_STANDING: {
+ *out_tps = 'S';
+ out_tps++;
+ break;
+ }
+ default:
+ break;
+ }
} else {
- int8_t skip = 1;
- while (col < board_size && COUNT_AT(l+skip) == 0) {
- skip++;
- col++;
- }
- *out_tps = 'x'; out_tps++;
- if (skip > 1) {
- *out_tps = '0'+skip; out_tps++;
- }
+ int8_t skip = 1;
+ while (col < state->board_size && COUNT_AT(state, l + skip) == 0) {
+ skip++;
+ col++;
+ }
+ *out_tps = 'x';
+ out_tps++;
+ if (skip > 1) {
+ *out_tps = '0' + skip;
+ out_tps++;
+ }
}
- if (col + 1 < board_size) {
- *out_tps = ','; out_tps++;
+ if (col + 1 < state->board_size) {
+ *out_tps = ',';
+ out_tps++;
}
}
if (row > 0) {
- *out_tps = '/'; out_tps++;
+ *out_tps = '/';
+ out_tps++;
}
}
- *out_tps = ' '; out_tps++;
- *out_tps = '1' + (ply & 1); out_tps++;
- *out_tps = ' '; out_tps++;
+ *out_tps = ' ';
+ out_tps++;
+ *out_tps = '1' + (state->ply & 1);
+ out_tps++;
+ *out_tps = ' ';
+ out_tps++;
- out_tps += sprintf(out_tps, "%d", ply/2 + 1);
+ out_tps += sprintf(out_tps, "%d", state->ply / 2 + 1);
strcpy(out_tps, "\"]");
}
diff --git a/include/tps.h b/include/tps.h
index 70cf1de..075b3f8 100644
--- a/include/tps.h
+++ b/include/tps.h
@@ -1,11 +1,9 @@
#include <tak.h>
-#include <string.h> // for strnlen, strncmp, and strcpy
#include <stdio.h> // for sprintf (in a single place! grrr)
+#include <string.h> // for strnlen, strncmp, and strcpy
// NOTE: We assume that board_size matches TPS size.
-enum TPS_RESULT
-load_tps(char* in_tps);
+enum TPS_RESULT load_tps(tak_state_p state, char *in_tps);
-void
-generate_tps(char *out_tps);
+void generate_tps(tak_state_p state, char *out_tps);
diff --git a/include/tt_llcht.c b/include/tt_llcht.c
index b80da39..7b2269b 100644
--- a/include/tt_llcht.c
+++ b/include/tt_llcht.c
@@ -21,30 +21,29 @@
// Variables
// ===================================================================
-static tt_entry_t *table[TT_LLCHT_SIZE+1];
+static tt_entry_t *table[TT_LLCHT_SIZE + 1];
// ===================================================================
// Helper declarations
// ===================================================================
-tt_entry_t * new_ll_node(const uint64_t key, const enum TT_FLAG flag,
- const uint8_t depth, const float value,
- const action_t action);
-
+tt_entry_t *new_ll_node(const uint64_t key, const enum TT_FLAG flag,
+ const uint8_t depth, const float value,
+ const action_t action);
// ===================================================================
// Exported functions
// ===================================================================
int tt_init(void) {
- for (uint32_t k=0; k<=TT_LLCHT_SIZE; k++)
+ for (uint32_t k = 0; k <= TT_LLCHT_SIZE; k++)
table[k] = NULL;
return EXIT_SUCCESS;
}
void tt_free(void) {
tt_entry_t *n, *nn;
- for (uint32_t k=0; k<=TT_LLCHT_SIZE; k++) {
+ for (uint32_t k = 0; k <= TT_LLCHT_SIZE; k++) {
n = table[k];
while (n) {
nn = n->next;
@@ -61,15 +60,15 @@ tt_entry_t *tt_seek(const uint64_t key) {
return lookup;
}
-int tt_insert(const uint64_t key, const enum TT_FLAG flag,
- const uint8_t depth, const float value,
- const action_t action) {
+int tt_insert(const uint64_t key, const enum TT_FLAG flag, const uint8_t depth,
+ const float value, const action_t action) {
tt_entry_t *new = new_ll_node(key, flag, depth, value, action), *n;
// TODO: trap
const uint32_t idx = key & TT_LLCHT_SIZE;
if ((n = table[idx]) != NULL) {
- for (; n->next != NULL; n = n->next);
+ for (; n->next != NULL; n = n->next)
+ ;
n->next = new;
} else {
table[idx] = new;
@@ -82,9 +81,9 @@ int tt_insert(const uint64_t key, const enum TT_FLAG flag,
// Helper function implementations
// ===================================================================
-tt_entry_t * new_ll_node(const uint64_t key, const enum TT_FLAG flag,
- const uint8_t depth, const float value,
- const action_t action) {
+tt_entry_t *new_ll_node(const uint64_t key, const enum TT_FLAG flag,
+ const uint8_t depth, const float value,
+ const action_t action) {
tt_entry_t *new = malloc(sizeof(struct tt_node_s));
// TODO: trap errno
new->key = key;
diff --git a/include/tt_llcht.h b/include/tt_llcht.h
index 40d8bdb..dc73d26 100644
--- a/include/tt_llcht.h
+++ b/include/tt_llcht.h
@@ -18,8 +18,8 @@
#ifndef TT_LLCHT_H
#define TT_LLCHT_H
-#include <stdlib.h>
#include <stdint.h>
+#include <stdlib.h>
#include <actions.h>
@@ -42,7 +42,7 @@ typedef struct tt_node_s {
// Variables
// ===================================================================
-#define TT_LLCHT_SIZE ((uint32_t)((1<<19) - 1))
+#define TT_LLCHT_SIZE ((uint32_t)((1 << 19) - 1))
// ===================================================================
// Methods
@@ -53,8 +53,7 @@ void tt_free(void);
tt_entry_t *tt_seek(const uint64_t key);
-int tt_insert(const uint64_t key, const enum TT_FLAG flag,
- const uint8_t depth, const float value,
- const action_t action);
+int tt_insert(const uint64_t key, const enum TT_FLAG flag, const uint8_t depth,
+ const float value, const action_t action);
#endif
diff --git a/include/weights.c b/include/weights.c
index 82b55f9..1fa864e 100644
--- a/include/weights.c
+++ b/include/weights.c
@@ -14,20 +14,20 @@
* Trainable params: 1,986
* Non-trainable params: 0
* _________________________________________________________________
- * ([0.4593624770641327, 0.8171698451042175], [0.44635653495788574, 0.819940984249115])
+ * ([0.5177317261695862, 0.755382776260376], [0.5241230130195618, 0.7530876398086548])
*/
#include "weights.h"
const float dense1_weights[DENSE_NUM][INP_NUM] =
-{{0.09708841890096664, -0.14983339607715607, 0.9531096816062927, 0.14991514384746552, -0.63932865858078, 0.09746148437261581, -0.1670435070991516, 0.25754305720329285, -0.1731426864862442, -0.1653723269701004, -0.3116675615310669, 0.4331771433353424, 0.07788953930139542, -0.3911878764629364, -0.5864945650100708, -0.5138149261474609, -0.10366032272577286, 0.09420160204172134, 0.3116736114025116, -0.8269373774528503, -0.6619208455085754, -1.0483648777008057, -0.05252189561724663, 0.12044219672679901, 0.677895724773407, 0.9947460293769836, -1.109876036643982, -0.20052704215049744}, {0.04853341355919838, -0.44796833395957947, 1.0772864818572998, 0.12211384624242783, 0.43898314237594604, 0.19653372466564178, -0.010857676155865192, -0.34688177704811096, -1.917777180671692, -1.0062774419784546, -0.772797167301178, -0.6764053106307983, -0.15675123035907745, 0.20477063953876495, 0.0170141514390707, 0.0373976044356823, -0.3958517014980316, -0.17130737006664276, 0.10296492278575897, -0.10372677445411682, -0.07705003023147583, -0.21586216986179352, -0.06457874923944473, 0.18130557239055634, -0.19682471454143524, -0.10427158325910568, -0.6213868260383606, 0.2646593451499939}, {0.05100073665380478, -1.490741491317749, 0.5347241759300232, 0.5138917565345764, 0.7368579506874084, -0.3916100859642029, 0.10224276781082153, -0.8944575190544128, 0.9391179084777832, 0.8531733155250549, -0.7068527936935425, -0.1843581348657608, 0.10034217685461044, 0.7256124019622803, -0.5566624402999878, -0.630030632019043, 0.1081201434135437, 0.06458459794521332, -0.06652732193470001, -0.7848819494247437, 0.06676337122917175, 0.19047099351882935, 0.3317343592643738, -1.125041127204895, -0.15809980034828186, 0.7293155193328857, 0.7303928732872009, 0.24778194725513458}, {-0.10748109966516495, 1.3822530508041382, 0.2629156708717346, 0.6968264579772949, 0.17485041916370392, -0.20862552523612976, -0.12484818696975708, -0.23138242959976196, 0.8940210342407227, 0.7281381487846375, 0.2892467975616455, 0.07963291555643082, -0.07487558573484421, -0.1968744993209839, 0.8000355362892151, 0.6640182733535767, 0.22926642000675201, 0.2277926504611969, -0.37833377718925476, -0.2742082476615906, 0.8170139193534851, 0.4202984571456909, 0.27552902698516846, -0.46328070759773254, -0.3581807315349579, 0.10414467751979828, 0.7333625555038452, 0.35470449924468994}, {-0.1888720840215683, 0.9495699405670166, -0.6001124978065491, 0.2289646714925766, 0.1645985096693039, 0.010710741393268108, -0.07195031642913818, -0.3604000210762024, 0.40493911504745483, 0.06439553201198578, -0.1027727797627449, -0.18764203786849976, -0.020061621442437172, 0.41247984766960144, 0.0985364243388176, 0.03292955830693245, 0.13963104784488678, -0.1577671319246292, 0.8160413503646851, 0.3458573818206787, 0.15316851437091827, 0.09699071943759918, -0.15548554062843323, 0.06560410559177399, 0.5002033710479736, 0.6853768825531006, 0.913468599319458, 1.762925148010254}, {-0.05926303192973137, 2.1326680183410645, 0.20786024630069733, 0.20509517192840576, 0.3232854902744293, 0.4138268232345581, 0.23191986978054047, 0.1483074426651001, 0.30143123865127563, 0.36913859844207764, 0.2858075201511383, 0.27123841643333435, 0.21376250684261322, 0.2404519021511078, 0.4652462899684906, 0.23301848769187927, 0.3275870382785797, 0.3245834708213806, 0.35785531997680664, 0.21870960295200348, 0.28119996190071106, 0.385022908449173, 0.2985413074493408, 0.015570216812193394, 0.2387431263923645, 0.3773896098136902, 0.3013421595096588, 0.09287303686141968}, {-0.13003307580947876, 1.7538926601409912, -0.6812999844551086, -0.4881831109523773, -0.4694475829601288, 0.75823974609375, 0.2842443883419037, 0.31535980105400085, -0.4027916193008423, 0.6403568387031555, 0.7254506945610046, 0.31957608461380005, 0.6868956089019775, 0.6129562854766846, 0.6620163917541504, -0.19040672481060028, 0.2591014504432678, 0.17981182038784027, 0.3206057548522949, 0.26464489102363586, 0.12509778141975403, -0.1723550260066986, 0.5769479274749756, 0.27363383769989014, 0.40419286489486694, 0.4196736216545105, 0.474353551864624, 0.3851746618747711}, {0.004320172592997551, -0.06554269790649414, 1.0545583963394165, 0.03816256299614906, -0.3641563057899475, -0.04311445355415344, -1.0777692794799805, 0.3634617328643799, -0.2762683629989624, 0.2931346595287323, 0.12660370767116547, -0.8033497333526611, -0.08709059655666351, 0.2099713832139969, 0.38327884674072266, 0.11443039029836655, -0.8581308722496033, -0.6271834969520569, 0.01899813674390316, -0.36976635456085205, -0.9609361290931702, -1.242712140083313, -0.20354503393173218, -0.892693042755127, -1.3654234409332275, -0.1457122266292572, 0.4198227822780609, 0.47160959243774414}, {-0.1309877187013626, 1.7283211946487427, -0.34542015194892883, 0.09756244719028473, 0.10365703701972961, 0.16427665948867798, 0.5429031848907471, 0.000730195315554738, 0.9568342566490173, 0.43416130542755127, 0.5171336531639099, -0.03411416709423065, 0.09991542249917984, 0.22394727170467377, 0.46084511280059814, 0.2941528856754303, 0.40269896388053894, 0.4282401502132416, -0.043696314096450806, 0.9397956728935242, 0.4523789584636688, 0.21760058403015137, 0.25844889879226685, -0.0975789725780487, 1.4064749479293823, -0.4462650716304779, -0.0176702868193388, -0.15949156880378723}, {-0.09322677552700043, 1.4953668117523193, -0.6572163701057434, 0.03580909222364426, 0.07035914063453674, 1.2231422662734985, 0.14995643496513367, -0.01055422704666853, -0.3619900643825531, 0.00962253101170063, 1.1480656862258911, 0.04119277000427246, -0.029596557840704918, -0.20450031757354736, -0.20949582755565643, 1.3544684648513794, -0.07676524668931961, -0.33410149812698364, 0.14368489384651184, 0.18317444622516632, 0.9521495699882507, 0.2047186642885208, -0.14690256118774414, -0.002987049985677004, 0.22252139449119568, 0.5207418203353882, 0.3862583041191101, 0.04728662222623825}, {0.12120318412780762, -0.32054218649864197, 0.2999326288700104, 0.914248526096344, -0.25369349122047424, 1.0056365728378296, 1.0900052785873413, -1.9740498065948486, -0.2208552062511444, 0.12854935228824615, 0.17538198828697205, -0.1234835833311081, -1.1125203371047974, -0.3354377746582031, -0.5196758508682251, -0.30077362060546875, -0.5856597423553467, -0.8402205109596252, -0.22239884734153748, -0.4105615019798279, -0.38801825046539307, -0.8613605499267578, -0.27762359380722046, 0.49667125940322876, 0.020931968465447426, -0.12382236868143082, -0.4301914572715759, -0.350443035364151}, {-0.07766333967447281, 0.6034705638885498, -4.554388523101807, 0.2126956582069397, 0.15929296612739563, 0.17145121097564697, 0.1601206660270691, 0.17433294653892517, 0.12817388772964478, 0.11653872579336166, 0.14781475067138672, 0.23677119612693787, 0.12034492939710617, 0.1955379694700241, 0.13016147911548615, 0.23828306794166565, 0.14038963615894318, 0.15755616128444672, 0.23868830502033234, 0.26690152287483215, 0.1843731850385666, 0.17341510951519012, 0.057188548147678375, 0.2539713680744171, 0.2696954309940338, 0.18604490160942078, 0.14197516441345215, 0.36821600794792175}, {0.15129533410072327, 0.09887662529945374, 1.2054975032806396, 0.24753500521183014, 0.4909513294696808, -1.6100319623947144, 0.07008431106805801, 0.1423417031764984, -0.09243771433830261, -0.34568139910697937, -1.0303078889846802, 0.18709783256053925, 0.6571977138519287, -0.11068439483642578, -0.14676885306835175, -0.6726709008216858, -0.6291938424110413, 0.6409110426902771, -0.4643811285495758, -0.06342993676662445, -0.3956544101238251, -0.7433932423591614, -1.4594924449920654, -0.2231053113937378, -0.31123557686805725, 0.03604980930685997, -0.01676316000521183, -0.010373279452323914}, {0.08248379826545715, -0.33374691009521484, 0.4519060552120209, -0.3651171028614044, -1.0735950469970703, 0.005808517802506685, 1.2023851871490479, 0.7546958327293396, -0.19511595368385315, -0.5970048904418945, -1.1051145792007446, -0.513593316078186, 1.0888173580169678, 0.2880654036998749, 0.14094868302345276, -0.5696795582771301, -1.0076549053192139, 0.19139567017555237, 0.336557537317276, 0.3891679644584656, 0.09406869858503342, -0.8800191283226013, -0.5774187445640564, 0.18142414093017578, 0.17849640548229218, -0.11618805676698685, -0.6260532736778259, -0.39390552043914795}, {-0.07623733580112457, 1.0555744171142578, -0.17468947172164917, 0.18221747875213623, 0.06131114810705185, -0.014457565732300282, 0.1536666601896286, 0.6676269769668579, 0.17481842637062073, -0.14446255564689636, 0.04878826066851616, 0.27363839745521545, 0.5058372020721436, 0.16395719349384308, 0.19522777199745178, 0.31879734992980957, 0.8337258696556091, 0.612602710723877, 0.18271851539611816, 0.12550194561481476, 0.7062245011329651, 0.2406325489282608, -0.5638207793235779, 0.44285738468170166, 0.49697133898735046, 0.655937135219574, -0.5988529324531555, -0.6180514693260193}, {-0.08515164256095886, 1.8156886100769043, -0.3055272698402405, -0.00542338564991951, 0.28451383113861084, 0.3305817246437073, 0.44789642095565796, 0.007520807906985283, 0.6411338448524475, 0.6627947688102722, 0.3936305642127991, 0.543207585811615, 0.31023091077804565, 0.5907645225524902, -0.5054730772972107, 0.5622344613075256, 0.46472644805908203, 0.7537768483161926, 0.5771557092666626, 0.6231046915054321, 0.5562911629676819, 0.05025006830692291, 0.4974210858345032, -0.021163247525691986, 0.428413450717926, 0.2096228450536728, 0.1297932267189026, 0.15994444489479065}, {0.059478625655174255, -1.2593594789505005, 0.8060709238052368, -0.5756357312202454, -0.5642467141151428, -1.1023842096328735, -1.0840095281600952, -1.7373161315917969, 0.051716454327106476, -0.18114325404167175, 0.03431779146194458, 0.07772735506296158, 0.30920106172561646, 0.06860094517469406, 0.053684305399656296, 0.050935737788677216, 1.5831908967811614e-05, 0.06146225333213806, 0.14663179218769073, 0.01896907575428486, -0.017615582793951035, 0.049037203192710876, 0.3536975681781769, 0.5997693538665771, 0.06265199184417725, 0.018393227830529213, -0.03553879261016846, 0.15440478920936584}, {-0.06590350717306137, 0.6541862487792969, -0.9594393968582153, 1.5689195394515991, 0.995005190372467, 0.7445554733276367, 0.92704838514328, 0.4702519476413727, -0.3339536786079407, -0.18121398985385895, 0.12824110686779022, 0.32404643297195435, 0.08692658692598343, 0.06525395065546036, -0.07403562217950821, -0.08786602318286896, 0.30545052886009216, 0.1610720455646515, 0.025930603966116905, -0.006452936679124832, 0.04217161983251572, -0.00885680504143238, 0.01933605782687664, -0.5424081683158875, 0.03653205558657646, -0.09611544758081436, 0.07054111361503601, -0.33712488412857056}, {-0.033981095999479294, 0.7148251533508301, -0.9412906169891357, -0.14343379437923431, -0.10766273736953735, -0.11414168775081635, -0.13219089806079865, 1.2587040662765503, 0.008397090248763561, -0.10059479624032974, 0.13039082288742065, 0.12154032289981842, 1.238200306892395, -0.19973790645599365, -0.05784938111901283, 0.017947781831026077, -0.04616774618625641, 1.1192306280136108, 0.07938524335622787, -0.005415983498096466, 0.09550166130065918, 0.09772814065217972, 1.2091776132583618, -0.30785369873046875, -0.05821114033460617, -0.06727229803800583, -0.04389581456780434, 1.2299752235412598}, {0.1273789405822754, -0.341524600982666, 1.151167392730713, -0.04134071618318558, -0.07647605985403061, 0.36836978793144226, -1.3937312364578247, -0.16971394419670105, -0.1672888547182083, 0.05098025128245354, 0.4777861535549164, -1.6180260181427002, -0.14700591564178467, -0.42429643869400024, -0.571417510509491, -0.3194080591201782, -1.2477779388427734, 0.7285082340240479, -0.5621447563171387, -0.067803755402565, -0.33690130710601807, -1.2182284593582153, -0.026820745319128036, 0.24996322393417358, -0.04271029680967331, -0.25508779287338257, -0.18486416339874268, -0.2532777190208435}, {0.11533160507678986, 0.3406147062778473, 1.8792569637298584, 0.018996711820364, -0.2056526243686676, 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const float dense1_biases[DENSE_NUM] =
-{-1.7320090532302856, -1.6262712478637695, -0.7219676971435547, -1.6883859634399414, -1.355366587638855, -1.4961345195770264, -1.6774159669876099, -1.9836738109588623, -1.8204424381256104, -1.6768863201141357, -1.5860340595245361, 0.4256221652030945, -1.9900296926498413, -2.060673952102661, -1.487168788909912, -1.653613567352295, -0.49618664383888245, -1.0318562984466553, -1.2956619262695312, -2.130068778991699, -2.124798536300659, -1.6073938608169556, -1.4884546995162964, -1.7450541257858276, -1.508810043334961, -1.4361188411712646, -1.4151768684387207, -1.6134501695632935, -1.9257988929748535, -1.8976153135299683, -1.6919738054275513, -1.7137935161590576, -0.9487504363059998, -0.7779767513275146, -2.0696449279785156, -0.4453120529651642, -0.8720207214355469, -2.00007963180542, -1.6582602262496948, -0.6423311233520508, -1.3238186836242676, -1.8345296382904053, -1.4237842559814453, -0.6334408521652222, -1.3415791988372803, -1.5188286304473877, -1.5377963781356812, -1.4456733465194702, -1.7134979963302612, -1.762224793434143, -1.760365605354309, -1.7037813663482666, -1.612302541732788, -1.613434910774231, -1.8743529319763184, -1.6047550439834595, -1.9443285465240479, -1.041770577430725, 0.48393940925598145, -1.487646460533142, -2.1693429946899414, -1.207763671875, -0.9444307684898376, -1.1276359558105469};
+{-0.1444406658411026, -0.9969395995140076, -0.6437257528305054, -0.5090100169181824, -0.4562266170978546, -0.7947681546211243, -0.66095370054245, -0.0757993534207344, -0.6305758357048035, -0.6522586345672607, -0.6137698292732239, 0.06795938313007355, -0.5988752841949463, -0.022649021819233894, -0.559893012046814, -0.34122252464294434, 0.21291229128837585, -0.9544443488121033, -0.5839042663574219, -0.3325875997543335, -0.8768086433410645, -0.3371303975582123, -0.804802417755127, -0.7296857833862305, -0.24707458913326263, -0.9100144505500793, -0.7247095704078674, -0.6324146389961243, -0.42117181420326233, -1.2145949602127075, -0.7118635177612305, -0.9112556576728821, -0.21369697153568268, -0.10298735648393631, -0.8274878263473511, -0.6126794219017029, -0.7786099314689636, -0.5083696246147156, -0.38434338569641113, -0.468181848526001, -0.5246707201004028, -0.6266580820083618, -0.3932459354400635, -0.6446056365966797, -0.8690927028656006, -0.7806448936462402, -0.7514670491218567, -0.4992736577987671, -0.4725331962108612, -0.8359085321426392, -0.3995131254196167, -0.701408326625824, 0.13735836744308472, -0.7701425552368164, 0.37747254967689514, -0.8496323227882385, -0.41388845443725586, -0.3626680374145508, -0.4750637412071228, -1.0076007843017578, -0.4247843325138092, -0.8280375599861145, -0.8584521412849426, -0.49181294441223145};
const float output_weights[2][DENSE_NUM] =
-{{-0.1246807649731636, -0.08505872637033463, -0.0652783066034317, 0.1350107192993164, 0.1698562055826187, 0.400063693523407, 0.17860691249370575, -0.1349184215068817, 0.20356398820877075, 0.16311302781105042, -0.036207523196935654, 0.7803400754928589, -0.13074463605880737, -0.06796154379844666, 0.20493201911449432, 0.14702282845973969, -0.11247620731592178, 0.22241809964179993, 0.1635751873254776, -0.08345462381839752, -0.2028568834066391, 0.12081773579120636, -0.1835630089044571, 0.1626814305782318, 0.16333818435668945, -0.27365756034851074, 0.13540410995483398, -0.13346917927265167, -0.1633249968290329, 0.17652902007102966, 0.1970495879650116, -0.0996168851852417, 0.1257164627313614, -0.02319495752453804, 0.1254752278327942, 0.004205659963190556, -0.11657992005348206, -0.13747099041938782, -0.12851183116436005, -0.13266359269618988, 0.15070892870426178, 0.18036587536334991, -0.120721235871315, -0.07944180071353912, -0.07511389255523682, -0.14644883573055267, 0.11276227235794067, 0.1335425227880478, -0.12701821327209473, 0.20198681950569153, -0.06599707156419754, -0.14891819655895233, 0.2015286684036255, 0.17373384535312653, 0.1385129988193512, 0.1480085849761963, 0.20751388370990753, -0.127104252576828, -0.5856947302818298, -0.26959943771362305, -0.10330907255411148, 0.14857497811317444, -0.168384850025177, -0.23837287724018097}, {0.05711914226412773, 0.1704198718070984, 0.07292810082435608, -0.1523439884185791, -0.20949530601501465, -0.33654606342315674, -0.23295333981513977, 0.09389320015907288, -0.23792678117752075, -0.17215877771377563, 0.06109726428985596, -0.7076484560966492, 0.0808710902929306, 0.06764110177755356, -0.08750396966934204, -0.12129006534814835, 0.08196759223937988, -0.22181545197963715, -0.10018306225538254, 0.09599480032920837, 0.2410762906074524, -0.16045424342155457, 0.12080714106559753, -0.14531971514225006, -0.14728260040283203, 0.389263778924942, -0.14980417490005493, 0.14908818900585175, 0.1427009552717209, -0.18783621490001678, -0.17802631855010986, 0.10279617458581924, -0.1660611927509308, 0.03492075577378273, -0.0730394646525383, 0.011791321448981762, 0.09671367704868317, 0.10834173858165741, 0.12392941862344742, 0.08413772284984589, -0.18994614481925964, -0.20133660733699799, 0.07802799344062805, 0.06276662647724152, 0.06052928790450096, 0.12486152350902557, -0.10323746502399445, -0.1355014443397522, 0.16498015820980072, -0.2137404978275299, 0.10234697163105011, 0.12195070087909698, -0.15739789605140686, -0.13428226113319397, -0.0960799902677536, -0.1424444168806076, -0.18782544136047363, 0.14121107757091522, 0.6669175624847412, 0.2753967046737671, 0.09798707813024521, -0.16682972013950348, 0.1646665632724762, 0.24278126657009125}};
+{{-0.10164133459329605, -0.06545510143041611, -0.12559004127979279, -0.09770263731479645, 0.020511239767074585, -0.11956804245710373, 0.0725698173046112, 0.09884587675333023, 0.03334106504917145, -0.07531746476888657, -0.04404358193278313, 0.04667624458670616, -0.10733920335769653, 0.11603111028671265, -0.09832630306482315, -0.029710080474615097, 0.6112914681434631, 0.09875980764627457, 0.04528747498989105, 0.04975724592804909, 0.05296019837260246, -0.1494731307029724, 0.06372635811567307, 0.05117323249578476, -0.4960876405239105, 0.08172430098056793, 0.09049712121486664, 0.16494503617286682, 0.12463495880365372, 0.10889994353055954, 0.0901939794421196, -0.07425925135612488, -0.09327994287014008, 0.07225991785526276, 0.0995996817946434, 0.1002214103937149, 0.13605892658233643, -0.2738678455352783, 0.07213583588600159, 0.031051557511091232, -0.09413432329893112, -0.05657240375876427, 0.023954149335622787, -0.11132869869470596, 0.0918613076210022, 0.1731780767440796, -0.048148252069950104, -0.08594620227813721, -0.07079077512025833, 0.028347637504339218, 0.04007003828883171, -0.08521876484155655, -0.13736766576766968, 0.0973486453294754, -0.3953056037425995, -0.09303829818964005, 0.0926792323589325, 0.08662958443164825, 0.07239469885826111, 0.12995171546936035, -0.08624651283025742, -0.13703757524490356, 0.1074426919221878, -0.05400789529085159}, {0.09475231915712357, 0.10763916373252869, 0.10490848124027252, 0.051702577620744705, -0.025973767042160034, 0.1243276372551918, -0.09184729307889938, -0.09110323339700699, -0.10927686840295792, 0.07648954540491104, 0.08314546942710876, -0.054432936012744904, 0.11420167982578278, -0.14501862227916718, 0.07449985295534134, 0.04114171117544174, -0.5540419816970825, -0.11702275276184082, -0.057106584310531616, -0.11389349400997162, -0.04799086973071098, 0.11528362333774567, -0.10561501979827881, -0.06099977344274521, 0.5406088829040527, -0.07843243330717087, -0.07121624052524567, -0.15534670650959015, -0.10739737004041672, -0.10599866509437561, -0.03090781159698963, 0.1024080142378807, 0.11164399981498718, -0.10347762703895569, -0.09762325882911682, -0.044070787727832794, -0.1382112205028534, 0.2635824978351593, -0.013381495140492916, -0.017522230744361877, 0.09075458347797394, 0.08058229833841324, -0.03840004280209541, 0.08596818149089813, -0.10802465677261353, -0.17988164722919464, 0.08185803890228271, 0.09076226502656937, 0.042497776448726654, -0.0991385206580162, -0.03188726678490639, 0.0789727196097374, 0.12080144137144089, -0.12002957612276077, 0.3941708207130432, 0.07739747315645218, -0.04954647645354271, -0.10626203566789627, -0.054530855268239975, -0.19077910482883453, 0.07939524203538895, 0.10724455863237381, -0.09315766394138336, 0.07806982845067978}};
const float output_bias[2] =
-{0.5831990242004395, 0.4281694293022156};
+{0.3762611150741577, 0.6172211170196533};
diff --git a/include/weights.h b/include/weights.h
index c4e0c3c..7a37ed9 100644
--- a/include/weights.h
+++ b/include/weights.h
@@ -15,10 +15,9 @@
along with ct. If not, see <https://www.gnu.org/licenses/>.
*/
-#define INP_NUM 3 + 5*5
+#define INP_NUM 3 + 5 * 5
#define DENSE_NUM 64
-
extern const float dense1_weights[DENSE_NUM][INP_NUM];
extern const float dense1_biases[DENSE_NUM];
extern const float output_weights[2][DENSE_NUM];
diff --git a/include/xorshift64.h b/include/xorshift64.h
index b9ba97a..c3542c6 100644
--- a/include/xorshift64.h
+++ b/include/xorshift64.h
@@ -22,13 +22,14 @@
extern uint64_t xors;
-#define XORSHIFT64 { \
- xors ^= xors >> 12; \
- xors ^= xors << 25; \
- xors ^= xors >> 27; \
+#define XORSHIFT64 \
+ { \
+ xors ^= xors >> 12; \
+ xors ^= xors << 25; \
+ xors ^= xors >> 27; \
}
-#define RANDOM64 (xors*0x2545F4914F6CDD1D)
+#define RANDOM64 (xors * 0x2545F4914F6CDD1D)
#define RANDOM32 ((uint32_t)RANDOM64)
#endif
diff --git a/include/zobrist.c b/include/zobrist.c
index 1fdd8a9..d8d1856 100644
--- a/include/zobrist.c
+++ b/include/zobrist.c
@@ -27,13 +27,14 @@ static uint64_t *zobrist;
// Exported method implementations
// ===================================================================
-int zobrist_init(void) {
- if (zobrist != NULL) return EXIT_FAILURE;
+int zobrist_init(const uint8_t board_size) {
+ if (zobrist != NULL)
+ return EXIT_FAILURE;
- zobrist = malloc(sizeof(uint64_t)*board_size*board_size*(15*2*3));
+ zobrist = malloc(sizeof(uint64_t) * board_size * board_size * (15 * 2 * 3));
// TODO: trap errno
- for (int k=0; k<board_size*board_size*(15*2*3); k++) {
+ for (int k = 0; k < board_size * board_size * (15 * 2 * 3); k++) {
XORSHIFT64;
zobrist[k] = RANDOM64;
}
@@ -48,14 +49,14 @@ void zobrist_free(void) {
}
}
-uint64_t zobrist_compute(void) {
+uint64_t zobrist_compute(tak_state_p state) {
uint64_t hash = 0;
- for (uint8_t l=0; l<board_size*board_size; l++) {
- colour_stack_t c = colours[l];
- const uint8_t count = COUNT_AT(l);
- enum STONE_VARIANT s = STONE_AT(l);
- for (uint8_t h=0; h<count; h++, c >>= 1)
- hash ^= zobrist[l*(15*2*3)+h*2*3+(c&1)*3+s];
+ for (uint8_t l = 0; l < state->board_size * state->board_size; l++) {
+ colour_stack_t c = state->colours[l];
+ const uint8_t count = COUNT_AT(state, l);
+ enum STONE_VARIANT s = STONE_AT(state, l);
+ for (uint8_t h = 0; h < count; h++, c >>= 1)
+ hash ^= zobrist[l * (15 * 2 * 3) + h * 2 * 3 + (c & 1) * 3 + s];
}
return hash;
}
diff --git a/include/zobrist.h b/include/zobrist.h
index be93910..6a1de4f 100644
--- a/include/zobrist.h
+++ b/include/zobrist.h
@@ -15,12 +15,12 @@
along with ct. If not, see <https://www.gnu.org/licenses/>.
*/
-#include <xorshift64.h>
-#include <tak.h>
#include <actions.h>
+#include <tak.h>
+#include <xorshift64.h>
void zobrist_free(void);
-int zobrist_init(void);
+int zobrist_init(const uint8_t board_size);
-uint64_t zobrist_compute(void);
+uint64_t zobrist_compute(tak_state_p state);
generated by cgit v1.3.1 (git 2.54.0) at 2026-08-30 17:53:00 +0000