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#include "tile.h"
int is_allowed_placement(Tile tile, int index, BoardUnit* board) {
if (board[index].feature != EMPTY) return 0;
int neighbor_count = 0;
for (int i = 0; i < 4; i++) {
char neighbor = board[index + NEIGHBOR_INCREMENTS[i]].feature;
if (neighbor != EMPTY) {
if (neighbor != tile.edges[i]) return 0;
neighbor_count++;
}
}
return neighbor_count > 0;
}
int place_tile(Tile tile, int index, BoardUnit* board, int force) {
if (!is_center_index(index)) return 0;
if (!force && !is_allowed_placement(tile, index, board)) return 0;
board[index].feature = tile.center;
for (int i = 0; i < 4; i++) {
board[index + NEIGHBOR_INCREMENTS[i]].feature = tile.edges[i];
}
return 1;
}
void rotate_tile(Tile* tile, int increment) {
char buffer[8];
for (int i = 0; i < 8; i++) {
buffer[i] = tile->edges[i % 4];
}
for (int i = 0; i < 4; i++) {
tile->edges[i] = buffer[i + (increment % 4)];
}
}
void initialize_tileset(Tile* tileset) {
int index = 0;
for (int i = 0; i < 4; i++) tileset[index++] = (Tile){ "FFFF", 'F', 0 };
for (int i = 0; i < 5; i++) tileset[index++] = (Tile){ "CFFF", 'F', 0 };
for (int i = 0; i < 1; i++) tileset[index++] = (Tile){ "FCFC", 'C', 0 };
for (int i = 0; i < 2; i++) tileset[index++] = (Tile){ "FCFC", 'C', 1 };
for (int i = 0; i < 3; i++) tileset[index++] = (Tile){ "CCFF", 'C', 0 };
for (int i = 0; i < 2; i++) tileset[index++] = (Tile){ "CCFF", 'C', 1 };
for (int i = 0; i < 2; i++) tileset[index++] = (Tile){ "CCFF", 'C', 1 };
for (int i = 0; i < 3; i++) tileset[index++] = (Tile){ "CFCF", 'F', 0 };
for (int i = 0; i < 2; i++) tileset[index++] = (Tile){ "CCFF", 'F', 0 };
for (int i = 0; i < 1; i++) tileset[index++] = (Tile){ "FFRF", 'R', 0 };
for (int i = 0; i < 1; i++) tileset[index++] = (Tile){ "FFRF", 'R', 0 };
for (int i = 0; i < 8; i++) tileset[index++] = (Tile){ "FRFR", 'R', 0 };
for (int i = 0; i < 9; i++) tileset[index++] = (Tile){ "FFRR", 'R', 0 };
for (int i = 0; i < 4; i++) tileset[index++] = (Tile){ "FRRR", '+', 0 };
for (int i = 0; i < 1; i++) tileset[index++] = (Tile){ "RRRR", '+', 0 };
for (int i = 0; i < 4; i++) tileset[index++] = (Tile){ "CRFR", 'R', 0 };
for (int i = 0; i < 3; i++) tileset[index++] = (Tile){ "CFRR", 'R', 0 };
for (int i = 0; i < 3; i++) tileset[index++] = (Tile){ "CRRF", 'R', 0 };
for (int i = 0; i < 3; i++) tileset[index++] = (Tile){ "CRRR", '+', 0 };
for (int i = 0; i < 3; i++) tileset[index++] = (Tile){ "CCRR", 'R', 0 };
for (int i = 0; i < 2; i++) tileset[index++] = (Tile){ "CCRR", 'R', 1 };
for (int i = 0; i < 1; i++) tileset[index++] = (Tile){ "CCRC", 'C', 0 };
for (int i = 0; i < 2; i++) tileset[index++] = (Tile){ "CCRC", 'C', 1 };
}
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