/*
* Copyright 2014 MovingBlocks
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.terasology.world.generation.facets.base;
import com.google.common.collect.Maps;
import org.terasology.math.Region3i;
import org.terasology.math.geom.BaseVector3i;
import org.terasology.math.geom.Vector3i;
import org.terasology.world.generation.Border3D;
import java.util.Collections;
import java.util.Map;
import java.util.Map.Entry;
/**
* A sparse (map-based) implementation
* of {@link ObjectFacet3D}.
*
*/
public abstract class SparseObjectFacet3D<T> extends SparseFacet3D implements ObjectFacet3D<T> {
private final Map<BaseVector3i, T> relData = Maps.newLinkedHashMap();
/**
* @param targetRegion
* @param border
*/
public SparseObjectFacet3D(Region3i targetRegion, Border3D border) {
super(targetRegion, border);
}
@Override
public T get(int x, int y, int z) {
return get(new Vector3i(x, y, z));
}
@Override
public T get(BaseVector3i pos) {
checkRelativeCoords(pos.x(), pos.y(), pos.z());
return relData.get(pos);
}
@Override
public void set(int x, int y, int z, T value) {
set(new Vector3i(x, y, z), value);
}
@Override
public void set(BaseVector3i pos, T value) {
checkRelativeCoords(pos.x(), pos.y(), pos.z());
relData.put(pos, value); // TODO: consider using an immutable vector here
}
@Override
public T getWorld(BaseVector3i pos) {
return getWorld(pos.x(), pos.y(), pos.z());
}
@Override
public T getWorld(int x, int y, int z) {
checkWorldCoords(x, y, z);
Vector3i index = worldToRelative(x, y, z);
return relData.get(index);
}
@Override
public void setWorld(BaseVector3i pos, T value) {
setWorld(pos.x(), pos.y(), pos.z(), value);
}
@Override
public void setWorld(int x, int y, int z, T value) {
checkWorldCoords(x, y, z);
Vector3i index = worldToRelative(x, y, z);
relData.put(index, value);
}
/**
* @return an unmodifiable view on the relative entries
*/
public Map<BaseVector3i, T> getRelativeEntries() {
return Collections.unmodifiableMap(relData);
}
/**
* @return a <b>new</b> map with world-based position entries
*/
public Map<BaseVector3i, T> getWorldEntries() {
Map<BaseVector3i, T> result = Maps.newLinkedHashMap();
for (Entry<BaseVector3i, T> entry : relData.entrySet()) {
BaseVector3i relPos = entry.getKey();
BaseVector3i worldPos = relativeToWorld(relPos.x(), relPos.y(), relPos.z());
result.put(worldPos, entry.getValue());
}
return result;
}
}