package appeng.hooks;
import java.util.Collection;
import java.util.Random;
import java.util.concurrent.Callable;
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;
import appeng.util.Platform;
import cpw.mods.fml.common.IWorldGenerator;
final public class MeteoriteWorldGen implements IWorldGenerator
{
static 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;
}
}
@Override
public void generate(Random r, int chunkX, int chunkZ, World w, IChunkProvider chunkGenerator, IChunkProvider chunkProvider)
{
if ( WorldGenRegistry.instance.isWorldGenEnabled( WorldGenType.Meteorites, w ) )
{
// add new meteorites?
if ( r.nextFloat() < AEConfig.instance.meteoriteSpawnChance )
{
int x = r.nextInt( 16 ) + (chunkX << 4);
int z = r.nextInt( 16 ) + (chunkZ << 4);
int depth = 180 + r.nextInt( 20 );
TickHandler.instance.addCallable( w, new MeteoriteSpawn( x, depth, z, w ) );
}
else
TickHandler.instance.addCallable( w, new MeteoriteSpawn( chunkX << 4, 128, chunkZ << 4, w ) );
}
else
WorldSettings.getInstance().getCompass().updateArea( w, chunkX, chunkZ );
}
class MeteoriteSpawn implements Callable
{
final int x;
final int z;
final World w;
final int depth;
public MeteoriteSpawn(int x, int depth, int z, World w) {
this.x = x;
this.z = z;
this.w = w;
this.depth = depth;
}
@Override
public Object call() throws Exception
{
int chunkX = x >> 4;
int chunkZ = z >> 4;
double minSqDist = Double.MAX_VALUE;
// near by meteorites!
for (NBTTagCompound data : getNearByMeteorites( w, chunkX, chunkZ ))
{
MeteoritePlacer mp = new MeteoritePlacer();
mp.spawnMeteorite( new MeteoritePlacer.ChunkOnly( w, chunkX, chunkZ ), data );
minSqDist = Math.min( minSqDist, mp.getSqDistance( x, z ) );
}
boolean isCluster = (minSqDist < 30 * 30) && Platform.getRandomFloat() < AEConfig.instance.meteoriteClusterChance;
if ( minSqDist > AEConfig.instance.minMeteoriteDistanceSq || isCluster )
tryMeteorite( w, depth, x, z );
WorldSettings.getInstance().setGenerated( w.provider.dimensionId, chunkX, chunkZ );
WorldSettings.getInstance().getCompass().updateArea( w, chunkX, chunkZ );
return null;
}
}
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 MeteoritePlacer.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 MeteoritePlacer.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 );
}
}