91 lines
2.9 KiB
Java
91 lines
2.9 KiB
Java
/*
|
|
* This file is part of BlueMap, licensed under the MIT License (MIT).
|
|
*
|
|
* Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
|
|
* Copyright (c) contributors
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
package de.bluecolored.bluemap.core.world;
|
|
|
|
import de.bluecolored.bluemap.core.resourcepack.ResourcePack;
|
|
|
|
public class BlockNeighborhood<T extends BlockNeighborhood<T>> extends ResourcePackBlock<T> {
|
|
|
|
private static final int DIAMETER = 8;
|
|
private static final int DIAMETER_MASK = DIAMETER - 1;
|
|
private static final int DIAMETER_SQUARED = DIAMETER * DIAMETER;
|
|
|
|
private final ResourcePackBlock<?>[] neighborhood;
|
|
|
|
private int thisIndex;
|
|
|
|
public BlockNeighborhood(ResourcePackBlock<?> center) {
|
|
super(center.getResourcePack(), null, 0, 0, 0);
|
|
copy(center);
|
|
|
|
neighborhood = new ResourcePackBlock[DIAMETER * DIAMETER * DIAMETER];
|
|
init();
|
|
}
|
|
|
|
public BlockNeighborhood(ResourcePack resourcePack, World world, int x, int y, int z) {
|
|
super(resourcePack, world, x, y, z);
|
|
|
|
neighborhood = new ResourcePackBlock[DIAMETER * DIAMETER * DIAMETER];
|
|
init();
|
|
}
|
|
|
|
@Override
|
|
protected void reset() {
|
|
super.reset();
|
|
|
|
this.thisIndex = -1;
|
|
}
|
|
|
|
private void init() {
|
|
this.thisIndex = -1;
|
|
for (int i = 0; i < neighborhood.length; i++) {
|
|
neighborhood[i] = new ResourcePackBlock<>(this.getResourcePack(), null, 0, 0, 0);
|
|
}
|
|
}
|
|
|
|
public ResourcePackBlock<?> getNeighborBlock(int dx, int dy, int dz) {
|
|
int i = neighborIndex(dx, dy, dz);
|
|
if (i == thisIndex()) return this;
|
|
return neighborhood[i].set(
|
|
getWorld(),
|
|
getX() + dx,
|
|
getY() + dy,
|
|
getZ() + dz
|
|
);
|
|
}
|
|
|
|
private int thisIndex() {
|
|
if (thisIndex == -1) thisIndex = neighborIndex(0, 0, 0);
|
|
return thisIndex;
|
|
}
|
|
|
|
private int neighborIndex(int dx, int dy, int dz) {
|
|
return ((getX() + dx) & DIAMETER_MASK) * DIAMETER_SQUARED +
|
|
((getY() + dy) & DIAMETER_MASK) * DIAMETER +
|
|
((getZ() + dz) & DIAMETER_MASK);
|
|
}
|
|
|
|
}
|