Simple-Go

← Back to log@ 930be82

added check_bound(), changed tests, added protoype for play_at()

AuthorKonata <konata@posteo.jp>
Date
Commit930be82795216cef0c686cd72a2abb5d16a6487b
Parent578e149
4 files changed, 103 insertions(+), 10 deletions(-)
▾MMakefile
+2-1@ 930be82@ master
@@ -1,3 +1,4 @@
all:
gcc -O0 -g test.c simple-go.c -o test \
-Wall -Wpedantic -Wnull-dereference -Wshadow -Wconversion -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wstrict-overflow=5 -Wunreachable-code -Wno-unused-parameter
-Wall -Wpedantic -Wnull-dereference -Wshadow -Wconversion -Wstrict-prototypes -Wmissing-prototypes -Wcast-qual -Wstrict-overflow=5 -Wunreachable-code -Wno-unused-parameter \
-fsanitize=undefined
▾Msimple-go.c
+88-3@ 930be82@ master
@@ -13,6 +13,14 @@ go_board* create_board(size_t size)
return board;
}
bool check_bounds(go_board* board, size_t y, size_t x)
{
if(y >= 0 && x >= 0 && y < board->size && x < board->size)
return true;
else
return false;
}
void delete_board(go_board* board)
{
free(board->field_array);
@@ -32,9 +40,83 @@ void print_board(go_board* board)
}
}
bool play_at(game_state* game, size_t y, size_t x)
{
//check out-of-bounds
if(!check_bounds(game->board, y, x))
return false;
//check if field is empty
if(get_board_at(game->board, y, x) != EMPTY)
return false;
//check if placement could lead to suicide
if(get_board_at(game->board, y-1, x) != EMPTY &&
get_board_at(game->board, y, x-1) != EMPTY &&
get_board_at(game->board, y+1, x) != EMPTY &&
get_board_at(game->board, y, x+1) != EMPTY)
//if so, check if placement kills a surrounding group
{
if(get_board_at(game->board, y-1, x) == (game->black_turn ? WHITE : BLACK))
{
go_board* enemy_group = create_board(game->board->size);
find_group(game->board, enemy_group, y-1, x);
if(count_liberties(game->board, enemy_group) > 1)
{
delete_board(enemy_group);
return false;
} else {
//TODO: kill_group();
}
}
if(get_board_at(game->board, y, x-1) == (game->black_turn ? WHITE : BLACK))
{
go_board* enemy_group = create_board(game->board->size);
find_group(game->board, enemy_group, y, x-1);
if(count_liberties(game->board, enemy_group) > 1)
{
delete_board(enemy_group);
return false;
} else {
//kill_group();
}
}
if(get_board_at(game->board, y+1, x) == (game->black_turn ? WHITE : BLACK))
{
go_board* enemy_group = create_board(game->board->size);
find_group(game->board, enemy_group, y+1, x);
if(count_liberties(game->board, enemy_group) > 1)
{
delete_board(enemy_group);
return false;
} else {
//kill_group();
}
}
if(get_board_at(game->board, y, x+1) == (game->black_turn ? WHITE : BLACK))
{
go_board* enemy_group = create_board(game->board->size);
find_group(game->board, enemy_group, y, x+1);
if(count_liberties(game->board, enemy_group) > 1)
{
delete_board(enemy_group);
return false;
} else {
//kill_group();
}
}
//TODO: ...or if it connects to own group that has liberties left
}
set_board_at(game->board, y, x, game->black_turn ? BLACK : WHITE);
game->black_turn = !game->black_turn;
return true;
}
char get_board_at(go_board* board, size_t y, size_t x)
{
if(y >= 0 && x >= 0 && y < board->size && x < board->size)
if(check_bounds(board, y, x))
return board->field_array[y*board->size+x];
else
return INVALID_FIELD;
@@ -42,13 +124,14 @@ char get_board_at(go_board* board, size_t y, size_t x)
void set_board_at(go_board* board, size_t y, size_t x, char item)
{
if(y >= 0 && x >= 0 && y < board->size && x < board->size)
if(check_bounds(board,y,x))
board->field_array[y*board->size+x] = item;
}
#include <unistd.h>
void find_group(go_board* board, go_board* overlay, size_t y, size_t x)
{
assert(board->size == overlay->size);
assert(check_bounds(board, y, x));
set_board_at(overlay, y, x, GROUP);
char field = get_board_at(board,y,x);
@@ -106,6 +189,8 @@ size_t count_liberties(go_board* board, go_board* overlay)
}
}
delete_board(tmpoverlay);
return liberties;
}
▾Msimple-go.h
+3-1@ 930be82@ master
@@ -22,12 +22,14 @@ typedef struct go_board
typedef struct game_state
{
struct go_board* board;
go_board* board;
bool black_turn;
} game_state;
go_board* create_board(size_t size);
bool play_at(game_state* game, size_t y, size_t x);
bool check_bounds(go_board* board, size_t y, size_t x);
void delete_board(go_board* board);
char get_board_at(go_board* board, size_t y, size_t x);
void set_board_at(go_board* board, size_t y, size_t x, char item);
▾Mtest.c
+10-5@ 930be82@ master
@@ -4,19 +4,24 @@ int main(int argc, char** argv)
{
go_board* test_board = create_board(5);
set_board_at(test_board,2,2,WHITE);
set_board_at(test_board,2,3,WHITE);
set_board_at(test_board,1,3,WHITE);
set_board_at(test_board,3,3,WHITE);
set_board_at(test_board, 2, 2, WHITE);
set_board_at(test_board, 2, 3, WHITE);
set_board_at(test_board, 1, 3, WHITE);
set_board_at(test_board, 3, 3, WHITE);
set_board_at(test_board, 4, 4, WHITE);
set_board_at(test_board, 3, 1, WHITE);
set_board_at(test_board, 3, 2, BLACK);
print_board(test_board);
putchar('\n');
go_board* overlay = create_board(5);
find_group(test_board, overlay,2,2);
find_group(test_board, overlay, 2, 2);
print_board(overlay);
printf("liberties: %ld\n", count_liberties(test_board,overlay));
delete_board(test_board);
delete_board(overlay);
}