/*
* This file is part of Vanilla.
*
* Copyright (c) 2011 Spout LLC <http://www.spout.org/>
* Vanilla is licensed under the Spout License Version 1.
*
* Vanilla is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option)
* any later version.
*
* In addition, 180 days after any changes are published, you can use the
* software, incorporating those changes, under the terms of the MIT license,
* as described in the Spout License Version 1.
*
* Vanilla is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License,
* the MIT license and the Spout License Version 1 along with this program.
* If not, see <http://www.gnu.org/licenses/> for the GNU Lesser General Public
* License and see <http://spout.in/licensev1> for the full license, including
* the MIT license.
*/
package org.spout.vanilla.render;
import java.awt.Color;
import java.util.Map;
import gnu.trove.list.TFloatList;
import gnu.trove.list.array.TFloatArrayList;
import org.spout.api.geo.World;
import org.spout.api.geo.cuboid.ChunkSnapshotModel;
import org.spout.api.render.BufferContainer;
import org.spout.api.render.effect.BufferEffect;
import org.spout.math.GenericMath;
import org.spout.vanilla.world.generator.biome.VanillaBiome;
import org.spout.vanilla.world.generator.biome.VanillaBiomes;
public abstract class BiomeColorBufferEffect implements BufferEffect {
@Override
public void post(ChunkSnapshotModel chunkModel, BufferContainer value) {
final Map<Integer, Object> buffers = value.getBuffers();
final TFloatList vertices = (TFloatList) buffers.get(0);
final int vertexCount = vertices.size();
final TFloatList biomeColors;
if (!buffers.containsKey(5)) {
biomeColors = new TFloatArrayList(vertexCount);
buffers.put(5, biomeColors);
} else {
biomeColors = (TFloatList) buffers.get(5);
}
// This colors whole block faces at once. Doing it for each vertex is too expensive.
// 24 vertex coords per face (2 mesh face per block face, 3 vertices per mesh face, 4 coords per vertices)
// This expects vertices to be grouped by block face.
final World world = chunkModel.getCenter().getWorld();
for (int i = 0; i < vertexCount; i += 24) {
float r = 0;
float g = 0;
float b = 0;
final int x = GenericMath.floor(vertices.get(i));
final int y = GenericMath.floor(vertices.get(i + 1));
final int z = GenericMath.floor(vertices.get(i + 2));
for (byte xx = -1; xx <= 1; xx++) {
for (byte zz = -1; zz <= 1; zz++) {
VanillaBiome biome = (VanillaBiome) world.getBiome(x + xx, y, z + zz);
// Default to forest if no biome is set
if (biome == null) {
biome = VanillaBiomes.FOREST;
}
final Color color = getBiomeColor(biome);
r += color.getRed();
g += color.getGreen();
b += color.getBlue();
}
}
r /= 9;
r /= 255;
g /= 9;
g /= 255;
b /= 9;
b /= 255;
for (int ii = 0; ii < 6; ii++) {
biomeColors.add(r);
biomeColors.add(g);
biomeColors.add(b);
biomeColors.add(1);
}
}
}
protected abstract Color getBiomeColor(VanillaBiome biome);
}