package mattparks.mods.space.callisto.world.gen;
import java.util.Random;
import mattparks.mods.space.callisto.blocks.CallistoBlocks;
import net.minecraft.block.Block;
import net.minecraft.init.Blocks;
import net.minecraft.util.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.biome.BiomeGenBase;
import net.minecraft.world.gen.MapGenBase;
public class MapGenCallistoRavine extends MapGenBase {
private final float[] field_75046_d = new float[1024];
protected void generateRavine(long par1, int par3, int par4, Block[] par5ArrayOfByte, double par6, double par8, double par10, float par12, float par13, float par14, int par15, int par16, double par17) {
final Random random = new Random(par1);
final double d4 = par3 * 16 + 8;
final double d5 = par4 * 16 + 8;
float f3 = 0.0F;
float f4 = 0.0F;
if (par16 <= 0) {
final int j1 = this.range * 16 - 16;
par16 = j1 - random.nextInt(j1 / 4);
}
boolean flag = false;
if (par15 == -1) {
par15 = par16 / 2;
flag = true;
}
float f5 = 1.0F;
for (int k1 = 0; k1 < 128; ++k1) {
if (k1 == 0 || random.nextInt(3) == 0) {
f5 = 1.0F + random.nextFloat() * random.nextFloat() * 1.0F;
}
this.field_75046_d[k1] = f5 * f5;
}
for (; par15 < par16; ++par15) {
double d6 = 1.5D + MathHelper.sin(par15 * (float) Math.PI / par16) * par12 * 1.0F;
double d7 = d6 * par17;
d6 *= random.nextFloat() * 0.25D + 0.75D;
d7 *= random.nextFloat() * 0.25D + 0.75D;
final float f6 = MathHelper.cos(par14);
final float f7 = MathHelper.sin(par14);
par6 += MathHelper.cos(par13) * f6;
par8 += f7;
par10 += MathHelper.sin(par13) * f6;
par14 *= 0.7F;
par14 += f4 * 0.05F;
par13 += f3 * 0.05F;
f4 *= 0.8F;
f3 *= 0.5F;
f4 += (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 2.0F;
f3 += (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 4.0F;
if (flag || random.nextInt(4) != 0) {
final double d8 = par6 - d4;
final double d9 = par10 - d5;
final double d10 = par16 - par15;
final double d11 = par12 + 2.0F + 16.0F;
if (d8 * d8 + d9 * d9 - d10 * d10 > d11 * d11) {
return;
}
if (par6 >= d4 - 16.0D - d6 * 2.0D && par10 >= d5 - 16.0D - d6 * 2.0D && par6 <= d4 + 16.0D + d6 * 2.0D && par10 <= d5 + 16.0D + d6 * 2.0D) {
int l1 = MathHelper.floor_double(par6 - d6) - par3 * 16 - 1;
int i2 = MathHelper.floor_double(par6 + d6) - par3 * 16 + 1;
int j2 = MathHelper.floor_double(par8 - d7) - 1;
int k2 = MathHelper.floor_double(par8 + d7) + 1;
int l2 = MathHelper.floor_double(par10 - d6) - par4 * 16 - 1;
int i3 = MathHelper.floor_double(par10 + d6) - par4 * 16 + 1;
if (l1 < 0) {
l1 = 0;
}
if (i2 > 16) {
i2 = 16;
}
if (j2 < 1) {
j2 = 1;
}
if (k2 > 120) {
k2 = 120;
}
if (l2 < 0) {
l2 = 0;
}
if (i3 > 16) {
i3 = 16;
}
boolean flag1 = false;
int j3;
int k3;
for (j3 = l1; !flag1 && j3 < i2; ++j3) {
for (int l3 = l2; !flag1 && l3 < i3; ++l3) {
for (int i4 = k2 + 1; !flag1 && i4 >= j2 - 1; --i4) {
k3 = (j3 * 16 + l3) * 128 + i4;
if (i4 >= 0 && i4 < 128) {
if (this.isOceanBlock(par5ArrayOfByte, k3, j3, i4, l3, par3, par4)) {
flag1 = true;
}
if (i4 != j2 - 1 && j3 != l1 && j3 != i2 - 1 && l3 != l2 && l3 != i3 - 1) {
i4 = j2;
}
}
}
}
}
if (!flag1) {
for (j3 = l1; j3 < i2; ++j3) {
final double d12 = (j3 + par3 * 16 + 0.5D - par6) / d6;
for (k3 = l2; k3 < i3; ++k3) {
final double d13 = (k3 + par4 * 16 + 0.5D - par10) / d6;
int j4 = (j3 * 16 + k3) * 128 + k2;
boolean flag2 = false;
if (d12 * d12 + d13 * d13 < 1.0D) {
for (int k4 = k2 - 1; k4 >= j2; --k4) {
final double d14 = (k4 + 0.5D - par8) / d7;
if ((d12 * d12 + d13 * d13) * this.field_75046_d[k4] + d14 * d14 / 6.0D < 1.0D) {
if (this.isTopBlock(par5ArrayOfByte, j4, j3, k4, k3, par3, par4)) {
flag2 = true;
}
this.digBlock(par5ArrayOfByte, j4, j3, k4, k3, par3, par4, flag2);
}
--j4;
}
}
}
}
if (flag) {
break;
}
}
}
}
}
}
/**
* Recursively called by generate() (generate) and optionally by itself.
*/
protected void recursiveGenerate(World par1World, int par2, int par3, int par4, int par5, Block[] par6ArrayOfByte) {
if (this.rand.nextInt(50) == 0) {
final double d0 = par2 * 16 + this.rand.nextInt(16);
final double d1 = this.rand.nextInt(this.rand.nextInt(40) + 8) + 20;
final double d2 = par3 * 16 + this.rand.nextInt(16);
final byte b0 = 1;
for (int i1 = 0; i1 < b0; ++i1) {
final float f = this.rand.nextFloat() * (float) Math.PI * 2.0F;
final float f1 = (this.rand.nextFloat() - 0.5F) * 2.0F / 8.0F;
final float f2 = (this.rand.nextFloat() * 2.0F + this.rand.nextFloat()) * 2.0F;
this.generateRavine(this.rand.nextLong(), par4, par5, par6ArrayOfByte, d0, d1, d2, f2, f, f1, 0, 0, 3.0D);
}
}
}
protected boolean isOceanBlock(Block[] data, int index, int x, int y, int z, int chunkX, int chunkZ) {
return data[index] == Blocks.water || data[index] == Blocks.flowing_water;
}
// Exception biomes to make sure we generate like vanilla
private boolean isExceptionBiome(BiomeGenBase biome) {
if (biome == BiomeGenBase.mushroomIsland) {
return true;
}
if (biome == BiomeGenBase.beach) {
return true;
}
if (biome == BiomeGenBase.desert) {
return true;
}
return false;
}
// Determine if the block at the specified location is the top block for the
// biome, we take into account
// Vanilla bugs to make sure that we generate the map the same way vanilla
// does.
private boolean isTopBlock(Block[] data, int index, int x, int y, int z, int chunkX, int chunkZ) {
final BiomeGenBase biome = this.worldObj.getBiomeGenForCoords(x + chunkX * 16, z + chunkZ * 16);
return this.isExceptionBiome(biome) ? data[index] == CallistoBlocks.callistoBasicBlock : data[index] == biome.topBlock;
}
/**
* Digs out the current block, default implementation removes stone, filler,
* and top block Sets the block to lava if y is less then 10, and air other
* wise. If setting to air, it also checks to see if we've broken the
* surface and if so tries to make the floor the biome's top block
*
* @param data
* Block data array
* @param index
* Pre-calculated index into block data
* @param x
* local X position
* @param y
* local Y position
* @param z
* local Z position
* @param chunkX
* Chunk X position
* @param chunkZ
* Chunk Y position
* @param foundTop
* True if we've encountered the biome's top block. Ideally if
* we've broken the surface.
*/
protected void digBlock(Block[] data, int index, int x, int y, int z, int chunkX, int chunkZ, boolean foundTop) {
final BiomeGenBase biome = this.worldObj.getBiomeGenForCoords(x + chunkX * 16, z + chunkZ * 16);
final Block top = this.isExceptionBiome(biome) ? CallistoBlocks.callistoBasicBlock : biome.topBlock;
final Block filler = this.isExceptionBiome(biome) ? CallistoBlocks.callistoBasicBlock : biome.fillerBlock;
final Block block = data[index];
if (block == CallistoBlocks.callistoBasicBlock || block == filler || block == top) {
if (y < 10) {
data[index] = Blocks.lava;
} else {
data[index] = Blocks.air;
if (foundTop && data[index - 1] == filler) {
data[index - 1] = top;
}
}
}
}
}