/*
* 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.rendering.assets.texture;
import com.google.common.collect.ImmutableSet;
import org.terasology.assets.AssetDataProducer;
import org.terasology.assets.ResourceUrn;
import org.terasology.assets.module.annotations.RegisterAssetDataProducer;
import org.terasology.engine.TerasologyConstants;
import org.terasology.naming.Name;
import java.io.IOException;
import java.util.Collections;
import java.util.Optional;
import java.util.Set;
/**
* Resolves references to <code>engine:noise</code> texture assets,
* <br><br>
* The noise parameters are parsed from the name of the asset, then TextureDataFactory is used to create
* a TextureData object which is used to build the Texture.
*
*/
@RegisterAssetDataProducer
public class NoiseTextureProducer implements AssetDataProducer<TextureData> {
@Override
public Set<ResourceUrn> getAvailableAssetUrns() {
return Collections.emptySet();
}
@Override
public Set<Name> getModulesProviding(Name resourceName) {
if (TextureUtil.NOISE_RESOURCE_NAME.equals(resourceName)) {
return ImmutableSet.of(TerasologyConstants.ENGINE_MODULE);
}
return Collections.emptySet();
}
@Override
public ResourceUrn redirect(ResourceUrn urn) {
return urn;
}
@Override
public Optional<TextureData> getAssetData(ResourceUrn urn) throws IOException {
if (TerasologyConstants.ENGINE_MODULE.equals(urn.getModuleName()) && TextureUtil.NOISE_RESOURCE_NAME.equals(urn.getResourceName())) {
Name fragmentName = urn.getFragmentName();
if (!fragmentName.isEmpty()) {
String[] parts = fragmentName.toLowerCase().split("\\.");
if (parts.length == 5) {
String type = parts[0];
int size = Integer.parseInt(parts[1]);
long seed = Long.parseLong(parts[2]);
int min = Integer.parseInt(parts[3]);
int max = Integer.parseInt(parts[4]);
TextureData textureData;
switch (type) {
case "white":
return Optional.of(TextureDataFactory.createWhiteNoiseTexture(size, seed, min, max));
}
}
}
}
return Optional.empty();
}
}