public MITrisBoard addPiece(Piece piece, int rot, int x, int y) {
if (piece == null) return this;
MITrisBoard ret = new MITrisBoard(this);
rot %= piece.getMaxRotation();
for (int i = 0; i < piece.getNumComponents(); i++) {
int px = x, py = y;
switch (rot) {
case 0:
px += piece.getX(i);
py += piece.getY(i);
break;
case 1:
px += piece.getY(i);
py -= piece.getX(i);
break;
case 2:
px -= piece.getX(i);
py -= piece.getY(i);
break;
case 3:
px -= piece.getY(i);
py += piece.getX(i);
break;
default:
throw new RuntimeException("invalid rotation");
}
if (py < 0 || px < 0 || px >= width) // out of bounds
return null;
else if (py < height && ret.data[px][py] != null) // overlap
return null;
else if (py < height) ret.data[px][py] = piece;
}
return ret;
}
public void moveRight() {
Piece imaginary =
new Piece(currentPiece.getX(), currentPiece.getY() + 1, currentPiece.getPiece_bits());
boolean[][] tempResult =
MatrixBoolean2DUtil.alignedNand(
coordinates, currentPiece.getPiece_bits(), currentPiece.getX(), currentPiece.getY());
boolean[][] tempCoordinates = MatrixBoolean2DUtil.and(coordinates, tempResult);
if (roomExist(tempCoordinates, imaginary)) {
coordinates = tempCoordinates;
spawn(imaginary);
}
}
public Snake createSnake() {
Piece head = new Piece(sizeOfArena / 2, sizeOfArena / 2, 1); // middle of the arena
Piece part2 = new Piece((sizeOfArena / 2) - 1, sizeOfArena / 2, 1); // secondPart
Piece part3 = new Piece((sizeOfArena / 2) - 2, sizeOfArena / 2, 1); // third part
board[head.getX()][head.getY()] = head; // save the snake to the arena
board[part2.getX()][part2.getY()] = part2;
board[part3.getX()][part3.getY()] = part3;
Piece[] parts = new Piece[3]; // pass it to the snake
parts[0] = head;
parts[1] = part2;
parts[2] = part3;
return new Snake(parts);
}
public void fall() {
Piece imaginary =
new Piece(currentPiece.getX() + 1, currentPiece.getY(), currentPiece.getPiece_bits());
boolean[][] tempResult =
MatrixBoolean2DUtil.alignedNand(
coordinates, currentPiece.getPiece_bits(), currentPiece.getX(), currentPiece.getY());
boolean[][] tempCoordinates = MatrixBoolean2DUtil.and(coordinates, tempResult);
if (roomExist(tempCoordinates, imaginary)) {
coordinates = tempCoordinates;
spawn(imaginary);
} else {
currentPiece.hitsBottom();
checkForPoints();
currentPiece = null;
}
}
