/*
* Copyright 2013 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.propagation.light;
import org.terasology.math.Side;
import org.terasology.math.Vector3i;
import org.terasology.world.block.Block;
import org.terasology.world.chunks.ChunkConstants;
import org.terasology.world.chunks.LitChunk;
import org.terasology.world.propagation.PropagatorWorldView;
import org.terasology.world.propagation.SingleChunkView;
/**
* @author Immortius
*/
public class SunlightPropagationRules extends CommonLightPropagationRules {
private PropagatorWorldView regenWorldView;
public SunlightPropagationRules(PropagatorWorldView regenWorldView) {
this.regenWorldView = regenWorldView;
}
public SunlightPropagationRules(LitChunk chunk) {
this.regenWorldView = new SingleChunkView(new SunlightRegenPropagationRules(), chunk);
}
public byte getFixedValue(Block block, Vector3i pos) {
byte lightVal = (byte) (regenWorldView.getValueAt(pos) - ChunkConstants.SUNLIGHT_REGEN_THRESHOLD);
return (lightVal > 0) ? lightVal : 0;
}
public byte propagateValue(byte existingValue, Side side, Block from) {
return (existingValue > 0) ? (byte) (existingValue - 1) : 0;
}
public byte getMaxValue() {
return ChunkConstants.MAX_SUNLIGHT;
}
public byte getValue(LitChunk chunk, Vector3i pos) {
return getValue(chunk, pos.x, pos.y, pos.z);
}
@Override
public byte getValue(LitChunk chunk, int x, int y, int z) {
return chunk.getSunlight(x, y, z);
}
public void setValue(LitChunk chunk, Vector3i pos, byte value) {
chunk.setSunlight(pos, value);
}
}