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#include "tak.h"
enum E_RESULT
do_ptn(char *ptn) {
enum E_RESULT res;
uint8_t location;
if (likely_move(ptn)) {
uint8_t steps, drops[5];
enum MOVE_DIRECTION direction;
res = parse_move(board_size, ptn, &location,
&direction, &steps, drops);
if (res == PTN_VALID) {
if (turn < 2) return A_ILLEGAL;
res = try_move(location, direction, steps, drops);
}
} else {
enum STONE_VARIANT stone;
res = parse_place(board_size, ptn, &location, &stone);
if (res == PTN_VALID)
res = try_place(location, current_colour, stone);
}
if (res == A_OK) {
next_turn();
if (turn > 1) return check_win();
}
return res;
}
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