/*
* 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.world.generation;
import com.google.common.base.Optional;
import com.google.common.collect.Sets;
import org.terasology.engine.SimpleUri;
import org.terasology.math.Rect2i;
import org.terasology.math.Region3i;
import org.terasology.math.Vector3i;
import org.terasology.rendering.nui.Color;
import org.terasology.world.chunks.CoreChunk;
import org.terasology.world.generation.facets.base.ColorSummaryFacet;
import org.terasology.world.generator.WorldConfigurator;
import org.terasology.world.generator.WorldGenerator;
import org.terasology.world.generator.WorldGenerator2DPreview;
import java.util.Map;
import java.util.Set;
public abstract class BaseFacetedWorldGenerator implements WorldGenerator, WorldGenerator2DPreview {
private final SimpleUri uri;
private String worldSeed;
private WorldBuilder worldBuilder;
private World world;
public BaseFacetedWorldGenerator(SimpleUri uri) {
this.uri = uri;
}
@Override
public final SimpleUri getUri() {
return uri;
}
@Override
public void setWorldSeed(final String seed) {
worldSeed = seed;
worldBuilder = createWorld(worldSeed.hashCode());
// reset the world to lazy load it again later
world = null;
}
protected abstract WorldBuilder createWorld(long seed);
@Override
public void initialize() {
getWorld().initialize();
}
@Override
public void createChunk(CoreChunk chunk) {
world.rasterizeChunk(chunk);
}
@Override
public Optional<WorldConfigurator> getConfigurator() {
FacetedWorldConfigurator worldConfigurator = worldBuilder.createConfigurator();
addConfiguration(worldConfigurator);
return Optional.of((WorldConfigurator) worldConfigurator);
}
protected void addConfiguration(FacetedWorldConfigurator worldConfigurator) {
}
@Override
public void setConfigurator(WorldConfigurator newConfigurator) {
if (newConfigurator instanceof FacetedWorldConfigurator) {
worldBuilder.setConfigurator((FacetedWorldConfigurator) newConfigurator);
}
}
@Override
public World getWorld() {
// build the world as late as possible so that we can do configuration and 2d previews
if (world == null) {
world = worldBuilder.build();
}
return world;
}
@Override
public Color get(String layerName, Rect2i area) {
Map<String, Class<? extends WorldFacet>> namedFacets = getWorld().getNamedFacets();
Class<? extends WorldFacet> facetType = namedFacets.get(layerName);
Region3i area3d = Region3i.createFromMinAndSize(new Vector3i(area.minX(), 0, area.minY()), new Vector3i(area.sizeX(), 1, area.sizeY()));
Region region = getWorld().getWorldData(area3d);
ColorSummaryFacet colorSummaryFacet = (ColorSummaryFacet) region.getFacet(facetType);
return colorSummaryFacet.getColor();
}
@Override
public Iterable<String> getLayers() {
Set<String> layerNames = Sets.newHashSet();
for (Map.Entry<String, Class<? extends WorldFacet>> namedFacet : getWorld().getNamedFacets().entrySet()) {
if (ColorSummaryFacet.class.isAssignableFrom(namedFacet.getValue())) {
layerNames.add(namedFacet.getKey());
}
}
return layerNames;
}
}