added pawn capture

1 files changed, 28 insertions, 8 deletions

diff --git a/chess.c b/chess.c
index 9cf9a76..c8de4fc 100644
--- a/chess.c
+++ b/chess.c
@@ -97,43 +97,63 @@ int in_board(vector_t position) {
 int is_empty(int board[8][8], vector_t position) {
 	return board[position.mx][position.my] == 0;
 }
-int get_owner(int board[8][8], vector_t position) {
-
+int is_white(int board[8][8], vector_t position) {
+	return board[position.mx][position.my] >= 1 && board[position.mx][position.my] <= 6;
+}
+int is_black(int board[8][8], vector_t position) {
+	return board[position.mx][position.my] >= 7;
 }
-int 
 vectorp_t get_moves(int board[8][8], vector_t position, piece_t piece) {
 	vector_t* moves = malloc(27 * sizeof(vector_t));
 	int moveCount = 0;
 	if(piece == pawn) {
 		vector_t move1 = init_vector(position.mx, position.my - 1);
 		if(in_board(move1) && is_empty(board, move1)) {
-			moves[0] = move1;
+			moves[moveCount] = move1;
 			moveCount++;
 			if(position.my == 6) {
 				vector_t move2 = init_vector(position.mx, position.my - 2);
 				if(is_empty(board, move2)) {
-					moves[1] = move2;
+					moves[moveCount] = move2;
 					moveCount++;
 				}
 			}
 		}
 		vector_t captureL = init_vector(position.mx - 1, position.my - 1);
-		if(in_board(captureL) && 
+		if(in_board(captureL) && is_black(board, captureL)) {
+			moves[moveCount] = captureL;
+			moveCount++;
+		}
+		vector_t captureR = init_vector(position.mx + 1, position.my - 1);
+		if(in_board(captureR) && is_black(board, captureR)) {
+			moves[moveCount] = captureR;
+			moveCount++;
+		}
 		return init_vectorp(moves, moveCount);
 	}
 	else if(piece == pawn + 6) {
 		vector_t move1 = init_vector(position.mx, position.my + 1);
 		if(in_board(move1) && is_empty(board, move1)) {
-			moves[0] = move1;
+			moves[moveCount] = move1;
 			moveCount++;
 			if(position.my == 1) {
 				vector_t move2 = init_vector(position.mx, position.my + 2);
 				if(is_empty(board, move2)) {
-					moves[1] = move2;
+					moves[moveCount] = move2;
 					moveCount++;
 				}
 			}
 		}
+		vector_t captureL = init_vector(position.mx - 1, position.my + 1);
+		if(in_board(captureL) && is_white(board, captureL)) {
+			moves[moveCount] = captureL;
+			moveCount++;
+		}
+		vector_t captureR = init_vector(position.mx + 1, position.my + 1);
+		if(in_board(captureR) && is_white(board, captureR)) {
+			moves[moveCount] = captureR;
+			moveCount++;
+		}
 		return init_vectorp(moves, moveCount);
 	}
 }