/*
* This file is part of LanternServer, licensed under the MIT License (MIT).
*
* Copyright (c) LanternPowered <https://www.lanternpowered.org>
* Copyright (c) SpongePowered <https://www.spongepowered.org>
* 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 org.lanternpowered.server.world.extent.worker;
import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;
import com.flowpowered.math.vector.Vector3i;
import org.spongepowered.api.block.BlockState;
import org.spongepowered.api.event.cause.Cause;
import org.spongepowered.api.world.extent.BlockVolume;
import org.spongepowered.api.world.extent.MutableBlockVolume;
import org.spongepowered.api.world.extent.UnmodifiableBlockVolume;
import org.spongepowered.api.world.extent.worker.BlockVolumeWorker;
import org.spongepowered.api.world.extent.worker.procedure.BlockVolumeMapper;
import org.spongepowered.api.world.extent.worker.procedure.BlockVolumeMerger;
import org.spongepowered.api.world.extent.worker.procedure.BlockVolumeReducer;
import org.spongepowered.api.world.extent.worker.procedure.BlockVolumeVisitor;
import java.util.function.BiFunction;
public class LanternBlockVolumeWorker<V extends BlockVolume> implements BlockVolumeWorker<V> {
protected final V volume;
protected final Cause cause;
public LanternBlockVolumeWorker(V volume, Cause cause) {
this.volume = checkNotNull(volume, "volume");
this.cause = checkNotNull(cause, "cause");
}
@Override
public V getVolume() {
return this.volume;
}
@Override
public void map(BlockVolumeMapper mapper, MutableBlockVolume destination) {
final Vector3i offset = align(destination);
final int xOffset = offset.getX();
final int yOffset = offset.getY();
final int zOffset = offset.getZ();
final UnmodifiableBlockVolume unmodifiableVolume = this.volume.getUnmodifiableBlockView();
final int xMin = unmodifiableVolume.getBlockMin().getX();
final int yMin = unmodifiableVolume.getBlockMin().getY();
final int zMin = unmodifiableVolume.getBlockMin().getZ();
final int xMax = unmodifiableVolume.getBlockMax().getX();
final int yMax = unmodifiableVolume.getBlockMax().getY();
final int zMax = unmodifiableVolume.getBlockMax().getZ();
for (int z = zMin; z <= zMax; z++) {
for (int y = yMin; y <= yMax; y++) {
for (int x = xMin; x <= xMax; x++) {
final BlockState block = mapper.map(unmodifiableVolume, x, y, z);
destination.setBlock(x + xOffset, y + yOffset, z + zOffset, block, this.cause);
}
}
}
}
@Override
public void merge(BlockVolume second, BlockVolumeMerger merger, MutableBlockVolume destination) {
final Vector3i offsetSecond = align(second);
final int xOffsetSecond = offsetSecond.getX();
final int yOffsetSecond = offsetSecond.getY();
final int zOffsetSecond = offsetSecond.getZ();
final Vector3i offsetDestination = align(destination);
final int xOffsetDestination = offsetDestination.getX();
final int yOffsetDestination = offsetDestination.getY();
final int zOffsetDestination = offsetDestination.getZ();
final UnmodifiableBlockVolume firstUnmodifiableVolume = this.volume.getUnmodifiableBlockView();
final int xMin = firstUnmodifiableVolume.getBlockMin().getX();
final int yMin = firstUnmodifiableVolume.getBlockMin().getY();
final int zMin = firstUnmodifiableVolume.getBlockMin().getZ();
final int xMax = firstUnmodifiableVolume.getBlockMax().getX();
final int yMax = firstUnmodifiableVolume.getBlockMax().getY();
final int zMax = firstUnmodifiableVolume.getBlockMax().getZ();
final UnmodifiableBlockVolume secondUnmodifiableVolume = second.getUnmodifiableBlockView();
for (int z = zMin; z <= zMax; z++) {
for (int y = yMin; y <= yMax; y++) {
for (int x = xMin; x <= xMax; x++) {
final BlockState block = merger.merge(firstUnmodifiableVolume, x, y, z,
secondUnmodifiableVolume, x + xOffsetSecond, y + yOffsetSecond, z + zOffsetSecond);
destination.setBlock(x + xOffsetDestination, y + yOffsetDestination,
z + zOffsetDestination, block, this.cause);
}
}
}
}
@Override
public void iterate(BlockVolumeVisitor<V> visitor) {
final int xMin = this.volume.getBlockMin().getX();
final int yMin = this.volume.getBlockMin().getY();
final int zMin = this.volume.getBlockMin().getZ();
final int xMax = this.volume.getBlockMax().getX();
final int yMax = this.volume.getBlockMax().getY();
final int zMax = this.volume.getBlockMax().getZ();
for (int z = zMin; z <= zMax; z++) {
for (int y = yMin; y <= yMax; y++) {
for (int x = xMin; x <= xMax; x++) {
visitor.visit(this.volume, x, y, z);
}
}
}
}
@Override
public <T> T reduce(BlockVolumeReducer<T> reducer, BiFunction<T, T, T> merge, T identity) {
final UnmodifiableBlockVolume unmodifiableVolume = this.volume.getUnmodifiableBlockView();
final int xMin = unmodifiableVolume.getBlockMin().getX();
final int yMin = unmodifiableVolume.getBlockMin().getY();
final int zMin = unmodifiableVolume.getBlockMin().getZ();
final int xMax = unmodifiableVolume.getBlockMax().getX();
final int yMax = unmodifiableVolume.getBlockMax().getY();
final int zMax = unmodifiableVolume.getBlockMax().getZ();
T reduction = identity;
for (int z = zMin; z <= zMax; z++) {
for (int y = yMin; y <= yMax; y++) {
for (int x = xMin; x <= xMax; x++) {
reduction = reducer.reduce(unmodifiableVolume, x, y, z, reduction);
}
}
}
return reduction;
}
private Vector3i align(BlockVolume other) {
final Vector3i thisSize = this.volume.getBlockSize();
final Vector3i otherSize = other.getBlockSize();
checkArgument(otherSize.getX() >= thisSize.getX() && otherSize.getY() >= thisSize.getY() && otherSize.getY() >= thisSize.getY(),
"Other volume is smaller than work volume");
return other.getBlockMin().sub(this.volume.getBlockMin());
}
}