Fixed minor bug causing AI to needlessly give jumps away to user. Now

plays more aggressively.
john · May 3, 2016 · b5f626f · Aaron · May 3, 2016 · Aaron
1 parent 8151371
commit b5f626f
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Showing 2 changed files with 3 additions and 4 deletions.
diff --git a/src/model/Board.java b/src/model/Board.java
@@ -397,9 +397,9 @@ public boolean isPromotionLocation(Location location) {
 	public int pieceDifferentialHeuristic(Color color) {
 		int blackHeuristic = blackPieces + blackKings;
 		int whiteHeuristic = whitePieces + whiteKings;
-		return - (color == Color.BLACK ? 
+		return (color == Color.BLACK ? 
 				(blackHeuristic - whiteHeuristic) : 
-					(whiteHeuristic - blackHeuristic));
+					(whiteHeuristic));
 	}
 
 	public Location samuelMapping(int k) {

diff --git a/src/player/ComputerPlayer.java b/src/player/ComputerPlayer.java
@@ -94,11 +94,10 @@ private int getMinimaxScore(Color color, Board b, int depth, boolean inJumpSeque
 		if (depth == 0) {
 			return b.getHeuristic(otherColor);
 		}
-
+		
 		if (inJumpSequence) {
 			/* Generate the frontier only for the piece that just moved */
 			boardFrontier = b.generateJumpFrontierForPiece(b.getLastPieceMoved());
-
 			/* If we can't jump anymore, get out of the jump sequence */
 			if (boardFrontier.isEmpty()) {
 				return getMinimaxScore(otherColor, b, depth-1, inJumpSequence);