/*
* 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.logic.behavior;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.terasology.assets.ResourceUrn;
import org.terasology.assets.management.AssetManager;
import org.terasology.audio.StaticSound;
import org.terasology.audio.StreamingSound;
import org.terasology.engine.ComponentFieldUri;
import org.terasology.engine.SimpleUri;
import org.terasology.entitySystem.entity.EntityBuilder;
import org.terasology.entitySystem.entity.EntityManager;
import org.terasology.entitySystem.entity.EntityRef;
import org.terasology.entitySystem.metadata.ComponentLibrary;
import org.terasology.entitySystem.metadata.ComponentMetadata;
import org.terasology.entitySystem.prefab.Prefab;
import org.terasology.entitySystem.prefab.PrefabManager;
import org.terasology.entitySystem.systems.BaseComponentSystem;
import org.terasology.entitySystem.systems.RegisterSystem;
import org.terasology.logic.behavior.asset.NodesClassLibrary;
import org.terasology.logic.behavior.tree.Node;
import org.terasology.reflection.metadata.ClassMetadata;
import org.terasology.reflection.metadata.FieldMetadata;
import org.terasology.registry.In;
import org.terasology.registry.Share;
import org.terasology.rendering.assets.animation.MeshAnimation;
import org.terasology.rendering.nui.databinding.ReadOnlyBinding;
import org.terasology.rendering.nui.itemRendering.StringTextRenderer;
import org.terasology.rendering.nui.properties.OneOfProviderFactory;
import org.terasology.utilities.ReflectionUtil;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
/**
* Factory to create node instances from node entities.
*
*/
@RegisterSystem
@Share(BehaviorNodeFactory.class)
public class BehaviorNodeFactory extends BaseComponentSystem {
private static final Logger logger = LoggerFactory.getLogger(BehaviorNodeFactory.class);
private Map<ClassMetadata<? extends Node, ?>, BehaviorNodeComponent> nodes = Maps.newHashMap();
private Map<String, List<BehaviorNodeComponent>> categoryComponents = Maps.newHashMap();
private List<String> categories;
@In
private EntityManager entityManager;
@In
private PrefabManager prefabManager;
@In
private AssetManager assetManager;
@In
private NodesClassLibrary nodesClassLibrary;
@In
private OneOfProviderFactory providerFactory;
@In
private ComponentLibrary componentLibrary;
private List<ResourceUrn> sounds = Lists.newArrayList();
private List<ResourceUrn> music = Lists.newArrayList();
@Override
public void postBegin() {
refreshLibrary();
}
public void refreshLibrary() {
sounds.addAll(assetManager.getAvailableAssets(StaticSound.class).stream().collect(Collectors.toList()));
music.addAll(assetManager.getAvailableAssets(StreamingSound.class).stream().collect(Collectors.toList()));
providerFactory.register("sounds", new ReadOnlyBinding<List<ResourceUrn>>() {
@Override
public List<ResourceUrn> get() {
return sounds;
}
}, new StringTextRenderer<ResourceUrn>() {
@Override
public String getString(ResourceUrn value) {
return value.getResourceName().toString();
}
}
);
providerFactory.register("music", new ReadOnlyBinding<List<ResourceUrn>>() {
@Override
public List<ResourceUrn> get() {
return music;
}
}, new StringTextRenderer<ResourceUrn>() {
@Override
public String getString(ResourceUrn value) {
return value.getResourceName().toString();
}
}
);
providerFactory.register("animations", new AnimationPoolUriBinding(),
new StringTextRenderer<ComponentFieldUri>() {
@Override
public String getString(ComponentFieldUri value) {
return value.toString();
}
}
);
refreshPrefabs();
sortLibrary();
}
private List<ComponentFieldUri> determineAnimationPoolUris() {
final List<ComponentFieldUri> animationSetUris = Lists.newArrayList();
for (ComponentMetadata<?> componentMetadata : componentLibrary.iterateComponentMetadata()) {
SimpleUri uri = componentMetadata.getUri();
for (FieldMetadata<?, ?> fieldMetadata : componentMetadata.getFields()) {
if (fieldMetadata.getType().isAssignableFrom(List.class)) {
Type fieldType = fieldMetadata.getField().getGenericType();
if (fieldType instanceof ParameterizedType) {
ParameterizedType parameterizedType = (ParameterizedType) fieldType;
Type[] typeArguments = parameterizedType.getActualTypeArguments();
if (typeArguments.length == 1) {
Class<?> typeClass = ReflectionUtil.getClassOfType(typeArguments[0]);
if (typeClass.isAssignableFrom(MeshAnimation.class)) {
animationSetUris.add(new ComponentFieldUri(uri, fieldMetadata.getName()));
}
}
}
}
}
}
return animationSetUris;
}
private void sortLibrary() {
categories = Lists.newArrayList(categoryComponents.keySet());
Collections.sort(categories);
for (String category : categories) {
Collections.sort(categoryComponents.get(category), (o1, o2) -> o1.name.compareTo(o2.name));
}
}
private void refreshPrefabs() {
Collection<Prefab> prefabs = prefabManager.listPrefabs(BehaviorNodeComponent.class);
for (Prefab prefab : prefabs) {
EntityBuilder entityBuilder = entityManager.newBuilder(prefab);
entityBuilder.setPersistent(false);
EntityRef entityRef = entityBuilder.build();
BehaviorNodeComponent component = entityRef.getComponent(BehaviorNodeComponent.class);
ClassMetadata<? extends Node, ?> classMetadata = nodesClassLibrary.resolve(component.type);
if (classMetadata != null) {
if (classMetadata.isConstructable()) {
nodes.put(classMetadata, component);
logger.debug("Found behavior node for class " + component.type + " name=" + component.name);
List<BehaviorNodeComponent> list = categoryComponents.get(component.category);
if (list == null) {
list = Lists.newArrayList();
categoryComponents.put(component.category, list);
}
list.add(component);
} else {
logger.warn("Node cannot be constructed! -> ignoring " + component.type + " name=" + component.name);
}
} else {
logger.warn("Node not found -> ignoring! " + component.type + " name=" + component.name);
}
}
}
public BehaviorNodeComponent getNodeComponent(Node node) {
ClassMetadata<? extends Node, ?> metadata = nodesClassLibrary.getMetadata(node.getClass());
if (metadata != null) {
BehaviorNodeComponent nodeComponent = nodes.get(metadata);
if (nodeComponent == null) {
return BehaviorNodeComponent.DEFAULT;
}
return nodeComponent;
} else {
return null;
}
}
public Node getNode(BehaviorNodeComponent nodeComponent) {
for (Map.Entry<ClassMetadata<? extends Node, ?>, BehaviorNodeComponent> entry : nodes.entrySet()) {
if (nodeComponent == entry.getValue()) {
return entry.getKey().newInstance();
}
}
return null;
}
public Collection<BehaviorNodeComponent> getNodeComponents() {
return nodes.values();
}
public List<String> getCategories() {
return categories;
}
public List<BehaviorNodeComponent> getNodesComponents(String category) {
return categoryComponents.get(category);
}
private class AnimationPoolUriBinding extends ReadOnlyBinding<List<ComponentFieldUri>> {
private List<ComponentFieldUri> list;
@Override
public List<ComponentFieldUri> get() {
if (list == null) {
list = Collections.unmodifiableList(determineAnimationPoolUris());
}
return list;
}
}
}