com.badlogic.gdx.assets.loaders.ParticleEffectLoader.java Source code

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Here is the source code for com.badlogic.gdx.assets.loaders.ParticleEffectLoader.java

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/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * 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 com.badlogic.gdx.assets.loaders;

import com.badlogic.gdx.assets.AssetDescriptor;
import com.badlogic.gdx.assets.AssetLoaderParameters;
import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.files.FileHandle;
import com.badlogic.gdx.graphics.g2d.ParticleEffect;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.utils.Array;

/** {@link AssetLoader} to load {@link ParticleEffect} instances. Passing a {@link ParticleEffectParameter} to
 * {@link AssetManager#load(String, Class, AssetLoaderParameters)} allows to specify an atlas file or an image directory to be
 * used for the effect's images. Per default images are loaded from the directory in which the effect file is found. */
public class ParticleEffectLoader
        extends SynchronousAssetLoader<ParticleEffect, ParticleEffectLoader.ParticleEffectParameter> {
    public ParticleEffectLoader(FileHandleResolver resolver) {
        super(resolver);
    }

    @Override
    public ParticleEffect load(AssetManager am, String fileName, FileHandle file, ParticleEffectParameter param) {
        ParticleEffect effect = new ParticleEffect();
        if (param != null && param.atlasFile != null)
            effect.load(file, am.get(param.atlasFile, TextureAtlas.class), param.atlasPrefix);
        else if (param != null && param.imagesDir != null)
            effect.load(file, param.imagesDir);
        else
            effect.load(file, file.parent());
        return effect;
    }

    @Override
    public Array<AssetDescriptor> getDependencies(String fileName, FileHandle file, ParticleEffectParameter param) {
        Array<AssetDescriptor> deps = null;
        if (param != null && param.atlasFile != null) {
            deps = new Array();
            deps.add(new AssetDescriptor<TextureAtlas>(param.atlasFile, TextureAtlas.class));
        }
        return deps;
    }

    /** Parameter to be passed to {@link AssetManager#load(String, Class, AssetLoaderParameters)} if additional configuration is
     * necessary for the {@link ParticleEffect}. */
    public static class ParticleEffectParameter extends AssetLoaderParameters<ParticleEffect> {
        /** Atlas file name. */
        public String atlasFile;
        /** Optional prefix to image names **/
        public String atlasPrefix;
        /** Image directory. */
        public FileHandle imagesDir;
    }
}