Applied-Energistics-2-tiler.../src/main/java/appeng/worldgen/MeteoriteWorldGen.java

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/*
* This file is part of Applied Energistics 2.
* Copyright (c) 2013 - 2014, AlgorithmX2, All rights reserved.
*
* Applied Energistics 2 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.
*
* Applied Energistics 2 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
* along with Applied Energistics 2. If not, see <http://www.gnu.org/licenses/lgpl>.
*/
package appeng.worldgen;
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import java.util.Collection;
import java.util.Random;
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import java.util.concurrent.Callable;
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import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.world.World;
import net.minecraft.world.chunk.IChunkProvider;
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import cpw.mods.fml.common.IWorldGenerator;
import appeng.api.features.IWorldGen.WorldGenType;
import appeng.core.AEConfig;
import appeng.core.WorldSettings;
import appeng.core.features.registries.WorldGenRegistry;
import appeng.hooks.TickHandler;
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import appeng.util.Platform;
import appeng.worldgen.meteorite.ChunkOnly;
public final class MeteoriteWorldGen implements IWorldGenerator
{
@Override
public void generate( Random r, int chunkX, int chunkZ, World w, IChunkProvider chunkGenerator, IChunkProvider chunkProvider )
{
if( WorldGenRegistry.INSTANCE.isWorldGenEnabled( WorldGenType.Meteorites, w ) )
{
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// add new meteorites?
if( r.nextFloat() < AEConfig.instance.meteoriteSpawnChance )
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{
int x = r.nextInt( 16 ) + ( chunkX << 4 );
int z = r.nextInt( 16 ) + ( chunkZ << 4 );
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int depth = 180 + r.nextInt( 20 );
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TickHandler.INSTANCE.addCallable( w, new MeteoriteSpawn( x, depth, z, w ) );
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}
else
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TickHandler.INSTANCE.addCallable( w, new MeteoriteSpawn( chunkX << 4, 128, chunkZ << 4, w ) );
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}
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else
WorldSettings.getInstance().getCompass().updateArea( w, chunkX, chunkZ );
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}
private boolean tryMeteorite( World w, int depth, int x, int z )
{
for( int tries = 0; tries < 20; tries++ )
{
MeteoritePlacer mp = new MeteoritePlacer();
if( mp.spawnMeteorite( new ChunkOnly( w, x >> 4, z >> 4 ), x, depth, z ) )
{
int px = x >> 4;
int pz = z >> 4;
for( int cx = px - 6; cx < px + 6; cx++ )
for( int cz = pz - 6; cz < pz + 6; cz++ )
{
if( w.getChunkProvider().chunkExists( cx, cz ) )
{
if( px == cx && pz == cz )
continue;
if( WorldSettings.getInstance().hasGenerated( w.provider.dimensionId, cx, cz ) )
{
MeteoritePlacer mp2 = new MeteoritePlacer();
mp2.spawnMeteorite( new ChunkOnly( w, cx, cz ), mp.getSettings() );
}
}
}
return true;
}
depth -= 15;
if( depth < 40 )
return false;
}
return false;
}
private Collection<NBTTagCompound> getNearByMeteorites( World w, int chunkX, int chunkZ )
{
return WorldSettings.getInstance().getNearByMeteorites( w.provider.dimensionId, chunkX, chunkZ );
}
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class MeteoriteSpawn implements Callable
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{
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final int x;
final int z;
final World w;
final int depth;
public MeteoriteSpawn( int x, int depth, int z, World w )
{
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this.x = x;
this.z = z;
this.w = w;
this.depth = depth;
}
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@Override
public Object call() throws Exception
{
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int chunkX = this.x >> 4;
int chunkZ = this.z >> 4;
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double minSqDist = Double.MAX_VALUE;
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// near by meteorites!
for( NBTTagCompound data : MeteoriteWorldGen.this.getNearByMeteorites( this.w, chunkX, chunkZ ) )
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{
MeteoritePlacer mp = new MeteoritePlacer();
mp.spawnMeteorite( new ChunkOnly( this.w, chunkX, chunkZ ), data );
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minSqDist = Math.min( minSqDist, mp.getSqDistance( this.x, this.z ) );
}
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boolean isCluster = ( minSqDist < 30 * 30 ) && Platform.getRandomFloat() < AEConfig.instance.meteoriteClusterChance;
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if( minSqDist > AEConfig.instance.minMeteoriteDistanceSq || isCluster )
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MeteoriteWorldGen.this.tryMeteorite( this.w, this.depth, this.x, this.z );
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WorldSettings.getInstance().setGenerated( this.w.provider.dimensionId, chunkX, chunkZ );
WorldSettings.getInstance().getCompass().updateArea( this.w, chunkX, chunkZ );
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return null;
}
}
}