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

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package appeng.hooks;
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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;
import appeng.api.features.IWorldGen.WorldGenType;
import appeng.core.AEConfig;
import appeng.core.WorldSettings;
import appeng.core.features.registries.WorldGenRegistry;
import appeng.helpers.MeteoritePlacer;
import appeng.services.helpers.ICompassCallback;
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import appeng.util.Platform;
import cpw.mods.fml.common.IWorldGenerator;
final public class MeteoriteWorldGen implements IWorldGenerator
{
class myGen implements ICompassCallback
{
double distance = 0;
@Override
public void calculatedDirection(boolean hasResult, boolean spin, double radians, double dist)
{
if ( hasResult )
distance = dist;
else
distance = Double.MAX_VALUE;
}
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}
@Override
public void generate(Random r, int chunkX, int chunkZ, World w, IChunkProvider chunkGenerator, IChunkProvider chunkProvider)
{
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if ( WorldGenRegistry.instance.isWorldGenEnabled( WorldGenType.Meteorites, w ) )
{
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// add new meteorites?
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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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}
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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;
int depth;
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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
{
int chunkX = x >> 4;
int chunkZ = z >> 4;
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double minSqDist = Double.MAX_VALUE;
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// near by meteorites!
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for (NBTTagCompound data : getNearByMeteorites( w, chunkX, chunkZ ))
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{
MeteoritePlacer mp = new MeteoritePlacer();
mp.spawnMeteorite( new MeteoritePlacer.ChunkOnly( w, chunkX, chunkZ ), data );
minSqDist = Math.min( minSqDist, mp.getSqDistance( x, 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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tryMeteorite( w, depth, x, z );
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WorldSettings.getInstance().setGenerated( w.provider.dimensionId, chunkX, chunkZ );
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WorldSettings.getInstance().getCompass().updateArea( w, chunkX, chunkZ );
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return null;
}
}
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private boolean tryMeteorite(World w, int depth, int x, int z)
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{
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for (int tries = 0; tries < 20; tries++)
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{
MeteoritePlacer mp = new MeteoritePlacer();
if ( mp.spawnMeteorite( new MeteoritePlacer.ChunkOnly( w, x >> 4, z >> 4 ), x, depth, z ) )
{
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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 MeteoritePlacer.ChunkOnly( w, cx, cz ), mp.getSettings() );
}
}
}
return true;
}
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depth -= 15;
if ( depth < 40 )
return false;
}
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return false;
}
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private Collection<NBTTagCompound> getNearByMeteorites(World w, int chunkX, int chunkZ)
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{
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return WorldSettings.getInstance().getNearByMeteorites( w.provider.dimensionId, chunkX, chunkZ );
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}
}