/*
* 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.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 SparseFieldFacet3D extends SparseFacet3D implements FieldFacet3D {
// msteiger: it could be advantageous to use a Joda Collections map instead
private final Map<Vector3i, Number> relData = Maps.newLinkedHashMap();
private final float defValue;
public SparseFieldFacet3D(Region3i targetRegion, Border3D border) {
this(targetRegion, border, 0);
}
public SparseFieldFacet3D(Region3i targetRegion, Border3D border, float defValue) {
super(targetRegion, border);
this.defValue = defValue;
}
@Override
public float get(int x, int y, int z) {
return get(new Vector3i(x, y, z));
}
@Override
public float get(Vector3i pos) {
checkRelativeCoords(pos.x, pos.y, pos.z);
Number n = relData.get(pos);
return (n != null) ? n.floatValue() : defValue;
}
@Override
public void set(int x, int y, int z, float value) {
set(new Vector3i(x, y, z), value);
}
@Override
public void set(Vector3i pos, float value) {
set(pos, Float.valueOf(value));
}
public void set(int x, int y, int z, Number value) {
set(new Vector3i(x, y, z), value);
}
public void set(Vector3i pos, Number value) {
checkRelativeCoords(pos.x, pos.y, pos.z);
if (value.floatValue() != defValue) {
relData.put(pos, value);
}
}
@Override
public float getWorld(Vector3i pos) {
return getWorld(pos.x, pos.y, pos.z);
}
@Override
public float getWorld(int x, int y, int z) {
checkWorldCoords(x, y, z);
Vector3i rel = worldToRelative(x, y, z);
Number n = relData.get(rel);
return (n != null) ? n.floatValue() : defValue;
}
@Override
public void setWorld(Vector3i pos, float value) {
setWorld(pos.x, pos.y, pos.z, value);
}
@Override
public void setWorld(int x, int y, int z, float value) {
setWorld(x, y, z, Float.valueOf(value));
}
public void setWorld(Vector3i pos, Number value) {
setWorld(pos.x, pos.y, pos.z, value);
}
public void setWorld(int x, int y, int z, Number value) {
checkWorldCoords(x, y, z);
Vector3i rel = worldToRelative(x, y, z);
if (value.floatValue() != defValue) {
relData.put(rel, value);
}
}
/**
* @return an unmodifiable view on the relative entries
*/
public Map<Vector3i, Number> getRelativeEntries() {
return Collections.unmodifiableMap(relData);
}
/**
* @return a <b>new</b> map with world-based position entries
*/
public Map<Vector3i, Number> getWorldEntries() {
Map<Vector3i, Number> result = Maps.newLinkedHashMap();
for (Entry<Vector3i, Number> entry : relData.entrySet()) {
Vector3i relPos = entry.getKey();
Vector3i worldPos = relativeToWorld(relPos.x, relPos.y, relPos.z);
result.put(worldPos, entry.getValue());
}
return result;
}
}