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-rw-r--r--src/ct1986.c364
1 files changed, 182 insertions, 182 deletions
diff --git a/src/ct1986.c b/src/ct1986.c
index 93dd7b9..f9046ce 100644
--- a/src/ct1986.c
+++ b/src/ct1986.c
@@ -1,21 +1,21 @@
/*
- ct1986, an interface to the ct library designed to be embedded on
- a Raspberry Pi Zero
+ ct1986, an interface to the ct library designed to be embedded on
+ a Raspberry Pi Zero
- Copyright (C) 2021, tslil clingman
+ Copyright (C) 2021, tslil clingman
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <https://www.gnu.org/licenses/>.
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
@@ -33,92 +33,92 @@ static char *gamelog = 0;
static void
new_game(uint8_t size) {
- reset_state(size);
- lcd_printf_line(L_SCROLL, "New 5s game @ D%d",
- negamax_search_depth);
- if (gamelog) gamelog = realloc(gamelog, sizeof(char));
- else gamelog = malloc(sizeof(char));
- gamelog[0] = 0;
+ reset_state(size);
+ lcd_printf_line(L_SCROLL, "New 5s game @ D%d",
+ negamax_search_depth);
+ if (gamelog) gamelog = realloc(gamelog, sizeof(char));
+ else gamelog = malloc(sizeof(char));
+ gamelog[0] = 0;
}
static int
append_to_gamelog(const char *line, const uint8_t win_line) {
- // I _could_ dynamically compute the size but ... don't let
- // `perfect' be the enemy of `good' ?
+ // I _could_ dynamically compute the size but ... don't let
+ // `perfect' be the enemy of `good' ?
- if (gamelog == NULL) return EXIT_FAILURE;
+ if (gamelog == NULL) return EXIT_FAILURE;
- char prepend[8];
+ char prepend[8];
- if (win_line) {
- prepend[0] = '\n';
- prepend[1] = 0;
- } else if (ply & 1) {
- snprintf(prepend, 7, "%s%d. ",
- (ply == 1) ? "" : "\n", ply/2+1);
- } else {
- strcpy(prepend, " ");
- }
- // Make room for this line
- gamelog = realloc(gamelog,
- strlen(gamelog)
- + strlen(prepend)
- + strlen(line) + 1);
- // TODO: trap errno
- strcat(gamelog, prepend);
- strcat(gamelog, line);
+ if (win_line) {
+ prepend[0] = '\n';
+ prepend[1] = 0;
+ } else if (ply & 1) {
+ snprintf(prepend, 7, "%s%d. ",
+ (ply == 1) ? "" : "\n", ply/2+1);
+ } else {
+ strcpy(prepend, " ");
+ }
+ // Make room for this line
+ gamelog = realloc(gamelog,
+ strlen(gamelog)
+ + strlen(prepend)
+ + strlen(line) + 1);
+ // TODO: trap errno
+ strcat(gamelog, prepend);
+ strcat(gamelog, line);
- return EXIT_SUCCESS;
+ return EXIT_SUCCESS;
}
static void
end_game(char *line, char *win) {
- append_to_gamelog(line, 0);
- append_to_gamelog(win, 1);
- lcd_printf_line(L_SCROLL, "Game over: %s", win);
+ append_to_gamelog(line, 0);
+ append_to_gamelog(win, 1);
+ lcd_printf_line(L_SCROLL, "Game over: %s", win);
}
static int
handle_turn(char *line) {
- // Track win state
- uint8_t new_win = (won == 0xFF);
- switch (do_ptn(line)) {
- // Errors
- case ACT_INVALID_PTN: {
- lcd_put_line(L_SCROLL, "Invalid PTN.");
- break;
- }
- case ACT_ILLEGAL: {
- lcd_put_line(L_SCROLL, "Illegal ply.");
- break; }
- case ACT_OVERFLOW: {
- lcd_put_line(L_SCROLL, "Overflow.");
- break;
- }
- // Game has ended
- case GAME_END: {
- // Did it end this turn?
- if (new_win) {
- switch (won) {
- case WIN_DRAW: { end_game(line,"1/2-1/2"); break; }
- case WIN_FLAT_BLACK: { end_game(line,"0-F"); break; }
- case WIN_FLAT_WHITE: { end_game(line,"F-0"); break; }
- case WIN_ROAD_BLACK: { end_game(line,"0-R"); break; }
- case WIN_ROAD_WHITE: { end_game(line,"R-0"); break; }
- }
- return EXIT_SUCCESS;
- } else {
- lcd_put_line(L_SCROLL, "Game over.");
- break;
- }
- }
- // Valid, append to game log
- default: {
- append_to_gamelog(line, 0);
- return EXIT_SUCCESS;
- }
+ // Track win state
+ uint8_t new_win = (won == 0xFF);
+ switch (do_ptn(line)) {
+ // Errors
+ case ACT_INVALID_PTN: {
+ lcd_put_line(L_SCROLL, "Invalid PTN.");
+ break;
+ }
+ case ACT_ILLEGAL: {
+ lcd_put_line(L_SCROLL, "Illegal ply.");
+ break; }
+ case ACT_OVERFLOW: {
+ lcd_put_line(L_SCROLL, "Overflow.");
+ break;
+ }
+ // Game has ended
+ case GAME_END: {
+ // Did it end this turn?
+ if (new_win) {
+ switch (won) {
+ case WIN_DRAW: { end_game(line,"1/2-1/2"); break; }
+ case WIN_FLAT_BLACK: { end_game(line,"0-F"); break; }
+ case WIN_FLAT_WHITE: { end_game(line,"F-0"); break; }
+ case WIN_ROAD_BLACK: { end_game(line,"0-R"); break; }
+ case WIN_ROAD_WHITE: { end_game(line,"R-0"); break; }
}
- return EXIT_FAILURE;
+ return EXIT_SUCCESS;
+ } else {
+ lcd_put_line(L_SCROLL, "Game over.");
+ break;
+ }
+ }
+ // Valid, append to game log
+ default: {
+ append_to_gamelog(line, 0);
+ return EXIT_SUCCESS;
+ }
+ }
+ return EXIT_FAILURE;
}
@@ -127,53 +127,53 @@ static uint32_t perc;
inline void
negamax_display_progress(const uint8_t depth, const uint32_t length) {
- if (depth == negamax_search_depth) {
- lcd_printf_line(L_OVERWRITE, "Computing: %d%%",
- (++perc*100)/length);
- }
+ if (depth == negamax_search_depth) {
+ lcd_printf_line(L_OVERWRITE, "Computing: %d%%",
+ (++perc*100)/length);
+ }
}
static int
negamax_turn() {
- // Prepare progress bar
- perc = 0;
- lcd_put_line(L_SCROLL, "Computing: 0%");
- // Run the minimax
- float minimax = negamax_generate();
- // Failed to find a move?
- if (minimax < -infty) {
- lcd_printf_line(L_SCROLL, "%s concedes!",
- (ply & 1) ? "Black" : "White");
- return EXIT_FAILURE;
- } else {
- lcd_printf_line(L_SCROLL, "%s: %s",
- (ply & 1) ? "Black" : "White",
- negamax_ptn);
- return handle_turn(negamax_ptn);
- }
+ // Prepare progress bar
+ perc = 0;
+ lcd_put_line(L_SCROLL, "Computing: 0%");
+ // Run the minimax
+ float minimax = negamax_generate();
+ // Failed to find a move?
+ if (minimax < -infty) {
+ lcd_printf_line(L_SCROLL, "%s concedes!",
+ (ply & 1) ? "Black" : "White");
+ return EXIT_FAILURE;
+ } else {
+ lcd_printf_line(L_SCROLL, "%s: %s",
+ (ply & 1) ? "Black" : "White",
+ negamax_ptn);
+ return handle_turn(negamax_ptn);
+ }
}
static void
do_game_log(void) {
- lcd_put_line(L_SCROLL, "TODO!");
+ lcd_put_line(L_SCROLL, "TODO!");
}
static int
input_is_not_turn(const char *line) {
- switch (line[0]) {
- case 'l': { do_game_log(); break; }
- case 'n': { new_game(5); break; }
- case 'D': {
- negamax_search_depth = line[1] - '0';
- lcd_printf_line(L_SCROLL, "Search depth: %d",
- negamax_search_depth);
- break;
- }
- case 'B': { human = 1; new_game(5); break; }
- case 'W': { human = 0; new_game(5); break; }
- default: return EXIT_FAILURE;
- }
- return EXIT_SUCCESS;
+ switch (line[0]) {
+ case 'l': { do_game_log(); break; }
+ case 'n': { new_game(5); break; }
+ case 'D': {
+ negamax_search_depth = line[1] - '0';
+ lcd_printf_line(L_SCROLL, "Search depth: %d",
+ negamax_search_depth);
+ break;
+ }
+ case 'B': { human = 1; new_game(5); break; }
+ case 'W': { human = 0; new_game(5); break; }
+ default: return EXIT_FAILURE;
+ }
+ return EXIT_SUCCESS;
}
const char* license = "ct1986, an interface to the ct library designed to be embedded on a Raspberry Pi Zero\n\
@@ -187,85 +187,85 @@ static char line[LINE_BUFF_LEN+1];
static int
poll_input(void) {
- char c, *prompt;
- int idx = 0, polling = 1;
+ char c, *prompt;
+ int idx = 0, polling = 1;
- if (ply & 1) prompt = "Black: ";
- else prompt = "White: ";
+ if (ply & 1) prompt = "Black: ";
+ else prompt = "White: ";
- lcd_put_line(L_SCROLL, prompt);
+ lcd_put_line(L_SCROLL, prompt);
- line[0] = 0;
- while (polling) {
- lcd_printf_line(L_OVERWRITE, "%s%s", prompt, line);
- c = getchar();
- switch (c) {
- case 0x7F: {
- if (idx>0) idx--;
- line[idx] = 0;
- break;
- }
- case 0xFF: // fall-through
- case '\r': // fall-through
- case '\n': {
- polling = 0;
- break;
- }
- default: {
- if (idx+1<LINE_BUFF_LEN) {
- line[idx] = c;
- line[++idx] = 0;
- }
- break;
- }
- }
+ line[0] = 0;
+ while (polling) {
+ lcd_printf_line(L_OVERWRITE, "%s%s", prompt, line);
+ c = getchar();
+ switch (c) {
+ case 0x7F: {
+ if (idx>0) idx--;
+ line[idx] = 0;
+ break;
+ }
+ case 0xFF: // fall-through
+ case '\r': // fall-through
+ case '\n': {
+ polling = 0;
+ break;
+ }
+ default: {
+ if (idx+1<LINE_BUFF_LEN) {
+ line[idx] = c;
+ line[++idx] = 0;
}
- return idx;
+ break;
+ }
+ }
+ }
+ return idx;
}
int main(int argc, char **argv) {
- (void)(argc);
- (void)(argv);
+ (void)(argc);
+ (void)(argv);
- puts(license);
+ puts(license);
- if (lcd_begin() != EXIT_SUCCESS)
- return EXIT_FAILURE;
+ if (lcd_begin() != EXIT_SUCCESS)
+ return EXIT_FAILURE;
- initscr();
+ initscr();
- negamax_search_depth = 3;
- new_game(5);
- negamax_init(5);
+ negamax_search_depth = 3;
+ new_game(5);
+ negamax_init(5);
- human = 0;
- for (int playing = 1; playing;) {
- while (human == 0) {
- lcd_set_blink();
- if (poll_input() > 0) {
- if (input_is_not_turn(line)) {
- int r = handle_turn(line);
- if (r == EXIT_SUCCESS && won == 0xFF) {
- human = 1;
- }
- }
- } else {
- playing = 0;
- human = 1;
- }
- }
- lcd_stop_blink();
- if (playing) {
- negamax_turn();
- human = 0;
- }
+ human = 0;
+ for (int playing = 1; playing;) {
+ while (human == 0) {
+ lcd_set_blink();
+ if (poll_input() > 0) {
+ if (input_is_not_turn(line)) {
+ int r = handle_turn(line);
+ if (r == EXIT_SUCCESS && won == 0xFF) {
+ human = 1;
+ }
}
+ } else {
+ playing = 0;
+ human = 1;
+ }
+ }
+ lcd_stop_blink();
+ if (playing) {
+ negamax_turn();
+ human = 0;
+ }
+ }
- free(gamelog);
- negamax_free();
+ free(gamelog);
+ negamax_free();
- lcd_end();
- endwin();
+ lcd_end();
+ endwin();
- return EXIT_SUCCESS;
+ return EXIT_SUCCESS;
}
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