/**
* Rotate the clipboard in 2D. It can only rotate by angles divisible by 90.
*
* @param angle in degrees
*/
public void rotate2D(int angle) {
angle = angle % 360;
if (angle % 90 != 0) { // Can only rotate 90 degrees at the moment
return;
}
boolean reverse = angle < 0;
int numRotations = Math.abs((int) Math.floor(angle / 90.0));
int width = getWidth();
int length = getLength();
int height = getHeight();
Vector sizeRotated = size.transform2D(angle, 0, 0, 0, 0);
int shiftX = sizeRotated.getX() < 0 ? -sizeRotated.getBlockX() - 1 : 0;
int shiftZ = sizeRotated.getZ() < 0 ? -sizeRotated.getBlockZ() - 1 : 0;
BaseBlock newData[][][] =
new BaseBlock[Math.abs(sizeRotated.getBlockX())][Math.abs(sizeRotated.getBlockY())]
[Math.abs(sizeRotated.getBlockZ())];
for (int x = 0; x < width; ++x) {
for (int z = 0; z < length; ++z) {
Vector v = (new Vector(x, 0, z)).transform2D(angle, 0, 0, 0, 0);
int newX = v.getBlockX();
int newZ = v.getBlockZ();
for (int y = 0; y < height; ++y) {
BaseBlock block = data[x][y][z];
newData[shiftX + newX][y][shiftZ + newZ] = block;
if (reverse) {
for (int i = 0; i < numRotations; ++i) {
block.rotate90Reverse();
}
} else {
for (int i = 0; i < numRotations; ++i) {
block.rotate90();
}
}
}
}
}
data = newData;
size =
new Vector(
Math.abs(sizeRotated.getBlockX()),
Math.abs(sizeRotated.getBlockY()),
Math.abs(sizeRotated.getBlockZ()));
offset = offset.transform2D(angle, 0, 0, 0, 0).subtract(shiftX, 0, shiftZ);
}
