package rtg.world.gen;
import java.util.Random;
import net.minecraft.block.state.IBlockState;
import net.minecraft.init.Blocks;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.MathHelper;
import net.minecraft.world.World;
import net.minecraft.world.biome.Biome;
import net.minecraft.world.chunk.ChunkPrimer;
import net.minecraft.world.gen.MapGenRavine;
import rtg.api.RTGAPI;
import rtg.api.config.RTGConfig;
import rtg.world.biome.realistic.RealisticBiomeBase;
public class MapGenRavineRTG extends MapGenRavine
{
protected static final IBlockState FLOWING_LAVA = Blocks.FLOWING_LAVA.getDefaultState();
protected static final IBlockState AIR = Blocks.AIR.getDefaultState();
private final float[] rs = new float[1024];
private RTGConfig rtgConfig = RTGAPI.config();
private boolean enableRavines;
private int ravineFrequency;
@Override
protected void addTunnel(long p_180707_1_, int p_180707_3_, int p_180707_4_, ChunkPrimer p_180707_5_, double p_180707_6_, double p_180707_8_, double p_180707_10_, float p_180707_12_, float p_180707_13_, float p_180707_14_, int p_180707_15_, int p_180707_16_, double p_180707_17_)
{
Random random = new Random(p_180707_1_);
double d0 = (double)(p_180707_3_ * 16 + 8);
double d1 = (double)(p_180707_4_ * 16 + 8);
float f = 0.0F;
float f1 = 0.0F;
if (p_180707_16_ <= 0)
{
int i = this.range * 16 - 16;
p_180707_16_ = i - random.nextInt(i / 4);
}
boolean flag1 = false;
if (p_180707_15_ == -1)
{
p_180707_15_ = p_180707_16_ / 2;
flag1 = true;
}
float f2 = 1.0F;
for (int j = 0; j < 256; ++j)
{
if (j == 0 || random.nextInt(3) == 0)
{
f2 = 1.0F + random.nextFloat() * random.nextFloat();
}
this.rs[j] = f2 * f2;
}
for (; p_180707_15_ < p_180707_16_; ++p_180707_15_)
{
double d9 = 1.5D + (double)(MathHelper.sin((float)p_180707_15_ * (float)Math.PI / (float)p_180707_16_) * p_180707_12_);
double d2 = d9 * p_180707_17_;
d9 = d9 * ((double)random.nextFloat() * 0.25D + 0.75D);
d2 = d2 * ((double)random.nextFloat() * 0.25D + 0.75D);
float f3 = MathHelper.cos(p_180707_14_);
float f4 = MathHelper.sin(p_180707_14_);
p_180707_6_ += (double)(MathHelper.cos(p_180707_13_) * f3);
p_180707_8_ += (double)f4;
p_180707_10_ += (double)(MathHelper.sin(p_180707_13_) * f3);
p_180707_14_ = p_180707_14_ * 0.7F;
p_180707_14_ = p_180707_14_ + f1 * 0.05F;
p_180707_13_ += f * 0.05F;
f1 = f1 * 0.8F;
f = f * 0.5F;
f1 = f1 + (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 2.0F;
f = f + (random.nextFloat() - random.nextFloat()) * random.nextFloat() * 4.0F;
if (flag1 || random.nextInt(4) != 0)
{
double d3 = p_180707_6_ - d0;
double d4 = p_180707_10_ - d1;
double d5 = (double)(p_180707_16_ - p_180707_15_);
double d6 = (double)(p_180707_12_ + 2.0F + 16.0F);
if (d3 * d3 + d4 * d4 - d5 * d5 > d6 * d6)
{
return;
}
if (p_180707_6_ >= d0 - 16.0D - d9 * 2.0D && p_180707_10_ >= d1 - 16.0D - d9 * 2.0D && p_180707_6_ <= d0 + 16.0D + d9 * 2.0D && p_180707_10_ <= d1 + 16.0D + d9 * 2.0D)
{
int k2 = MathHelper.floor(p_180707_6_ - d9) - p_180707_3_ * 16 - 1;
int k = MathHelper.floor(p_180707_6_ + d9) - p_180707_3_ * 16 + 1;
int l2 = MathHelper.floor(p_180707_8_ - d2) - 1;
int l = MathHelper.floor(p_180707_8_ + d2) + 1;
int i3 = MathHelper.floor(p_180707_10_ - d9) - p_180707_4_ * 16 - 1;
int i1 = MathHelper.floor(p_180707_10_ + d9) - p_180707_4_ * 16 + 1;
if (k2 < 0)
{
k2 = 0;
}
if (k > 16)
{
k = 16;
}
if (l2 < 1)
{
l2 = 1;
}
if (l > 248)
{
l = 248;
}
if (i3 < 0)
{
i3 = 0;
}
if (i1 > 16)
{
i1 = 16;
}
boolean flag2 = false;
for (int j1 = k2; !flag2 && j1 < k; ++j1)
{
for (int k1 = i3; !flag2 && k1 < i1; ++k1)
{
for (int l1 = l + 1; !flag2 && l1 >= l2 - 1; --l1)
{
if (l1 >= 0 && l1 < 256)
{
if (isOceanBlock(p_180707_5_, j1, l1, k1, p_180707_3_, p_180707_4_))
{
flag2 = true;
}
if (l1 != l2 - 1 && j1 != k2 && j1 != k - 1 && k1 != i3 && k1 != i1 - 1)
{
l1 = l2;
}
}
}
}
}
if (!flag2)
{
for (int j3 = k2; j3 < k; ++j3)
{
double d10 = ((double)(j3 + p_180707_3_ * 16) + 0.5D - p_180707_6_) / d9;
for (int i2 = i3; i2 < i1; ++i2)
{
double d7 = ((double)(i2 + p_180707_4_ * 16) + 0.5D - p_180707_10_) / d9;
boolean flag = false;
if (d10 * d10 + d7 * d7 < 1.0D)
{
for (int j2 = l; j2 > l2; --j2)
{
double d8 = ((double)(j2 - 1) + 0.5D - p_180707_8_) / d2;
if ((d10 * d10 + d7 * d7) * (double)this.rs[j2 - 1] + d8 * d8 / 6.0D < 1.0D)
{
if (isTopBlock(p_180707_5_, j3, j2, i2, p_180707_3_, p_180707_4_))
{
flag = true;
}
digBlock(p_180707_5_, j3, j2, i2, p_180707_3_, p_180707_4_, flag);
}
}
}
}
}
if (flag1)
{
break;
}
}
}
}
}
}
@Override
protected void recursiveGenerate(World worldIn, int chunkX, int chunkZ, int originalX, int originalZ, ChunkPrimer chunkPrimerIn)
{
// Return early if ravines are disabled.
if (!rtgConfig.ENABLE_RAVINES.get()) {
return;
}
// Use the global settings by default.
ravineFrequency = rtgConfig.RAVINE_FREQUENCY.get();
// If the user has set biome-specific settings, let's use those instead.
Biome biome = worldIn.getBiome(new BlockPos(this.rand.nextInt(16) + chunkX * 16, 0, this.rand.nextInt(16) + chunkZ * 16));
if (biome != null) {
RealisticBiomeBase realisticBiome = RealisticBiomeBase.getBiome(Biome.getIdForBiome(biome));
if (realisticBiome != null) {
ravineFrequency = (realisticBiome.getConfig().RAVINE_FREQUENCY.get() > -1) ? realisticBiome.getConfig().RAVINE_FREQUENCY.get() : ravineFrequency;
}
}
// Return early if ravines are disabled.
if (ravineFrequency < 1) {
return;
}
if (this.rand.nextInt(ravineFrequency) == 0) {
double d0 = (double)(chunkX * 16 + this.rand.nextInt(16));
double d1 = (double)(this.rand.nextInt(this.rand.nextInt(40) + 8) + 20);
double d2 = (double)(chunkZ * 16 + this.rand.nextInt(16));
int i = 1;
for (int j = 0; j < 1; ++j)
{
float f = this.rand.nextFloat() * ((float)Math.PI * 2F);
float f1 = (this.rand.nextFloat() - 0.5F) * 2.0F / 8.0F;
float f2 = (this.rand.nextFloat() * 2.0F + this.rand.nextFloat()) * 2.0F;
this.addTunnel(this.rand.nextLong(), originalX, originalZ, chunkPrimerIn, d0, d1, d2, f2, f, f1, 0, 0, 3.0D);
}
}
}
@Override
protected boolean isOceanBlock(ChunkPrimer data, int x, int y, int z, int chunkX, int chunkZ)
{
net.minecraft.block.Block block = data.getBlockState(x, y, z).getBlock();
return block== Blocks.FLOWING_WATER || block == Blocks.WATER;
}
//Exception biomes to make sure we generate like vanilla
private boolean isExceptionBiome(net.minecraft.world.biome.Biome biome)
{
if (biome == net.minecraft.init.Biomes.BEACH) return true;
if (biome == net.minecraft.init.Biomes.DESERT) return true;
if (biome == net.minecraft.init.Biomes.MUSHROOM_ISLAND) return true;
if (biome == net.minecraft.init.Biomes.MUSHROOM_ISLAND_SHORE) 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(ChunkPrimer data, int x, int y, int z, int chunkX, int chunkZ)
{
net.minecraft.world.biome.Biome biome = world.getBiome(new BlockPos(x + chunkX * 16, 0, z + chunkZ * 16));
IBlockState state = data.getBlockState(x, y, z);
return (isExceptionBiome(biome) ? state.getBlock() == Blocks.GRASS : state.getBlock() == 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 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.
*/
@Override
protected void digBlock(ChunkPrimer data, int x, int y, int z, int chunkX, int chunkZ, boolean foundTop)
{
net.minecraft.world.biome.Biome biome = world.getBiome(new BlockPos(x + chunkX * 16, 0, z + chunkZ * 16));
IBlockState state = data.getBlockState(x, y, z);
IBlockState top = isExceptionBiome(biome) ? Blocks.GRASS.getDefaultState() : biome.topBlock;
IBlockState filler = isExceptionBiome(biome) ? Blocks.DIRT.getDefaultState() : biome.fillerBlock;
if (state.getBlock() == Blocks.STONE || state.getBlock() == top.getBlock() || state.getBlock() == filler.getBlock())
{
if (y - 1 < 10)
{
data.setBlockState(x, y, z, FLOWING_LAVA);
}
else
{
data.setBlockState(x, y, z, AIR);
if (foundTop && data.getBlockState(x, y - 1, z).getBlock() == filler.getBlock())
{
data.setBlockState(x, y - 1, z, top.getBlock().getDefaultState());
}
}
}
}
}