package net.minecraft.world.gen.feature;
import java.util.Random;
import net.minecraft.block.Block;
import net.minecraft.util.Direction;
import net.minecraft.world.World;
public class WorldGenTrees extends WorldGenerator
{
/** The minimum height of a generated tree. */
private final int minTreeHeight;
/** True if this tree should grow Vines. */
private final boolean vinesGrow;
/** The metadata value of the wood to use in tree generation. */
private final int metaWood;
/** The metadata value of the leaves to use in tree generation. */
private final int metaLeaves;
public WorldGenTrees(boolean par1)
{
this(par1, 4, 0, 0, false);
}
public WorldGenTrees(boolean par1, int par2, int par3, int par4, boolean par5)
{
super(par1);
this.minTreeHeight = par2;
this.metaWood = par3;
this.metaLeaves = par4;
this.vinesGrow = par5;
}
public boolean generate(World par1World, Random par2Random, int par3, int par4, int par5)
{
int var6 = par2Random.nextInt(3) + this.minTreeHeight;
boolean var7 = true;
if (par4 >= 1 && par4 + var6 + 1 <= 256)
{
int var8;
byte var9;
int var11;
int var12;
for (var8 = par4; var8 <= par4 + 1 + var6; ++var8)
{
var9 = 1;
if (var8 == par4)
{
var9 = 0;
}
if (var8 >= par4 + 1 + var6 - 2)
{
var9 = 2;
}
for (int var10 = par3 - var9; var10 <= par3 + var9 && var7; ++var10)
{
for (var11 = par5 - var9; var11 <= par5 + var9 && var7; ++var11)
{
if (var8 >= 0 && var8 < 256)
{
var12 = par1World.getBlockId(var10, var8, var11);
Block block = Block.blocksList[var12];
if (var12 != 0 &&
!block.isLeaves(par1World, var10, var8, var11) &&
var12 != Block.grass.blockID &&
var12 != Block.dirt.blockID &&
!block.isWood(par1World, var10, var8, var11))
{
var7 = false;
}
}
else
{
var7 = false;
}
}
}
}
if (!var7)
{
return false;
}
else
{
var8 = par1World.getBlockId(par3, par4 - 1, par5);
if ((var8 == Block.grass.blockID || var8 == Block.dirt.blockID) && par4 < 256 - var6 - 1)
{
this.setBlock(par1World, par3, par4 - 1, par5, Block.dirt.blockID);
var9 = 3;
byte var18 = 0;
int var13;
int var14;
int var15;
for (var11 = par4 - var9 + var6; var11 <= par4 + var6; ++var11)
{
var12 = var11 - (par4 + var6);
var13 = var18 + 1 - var12 / 2;
for (var14 = par3 - var13; var14 <= par3 + var13; ++var14)
{
var15 = var14 - par3;
for (int var16 = par5 - var13; var16 <= par5 + var13; ++var16)
{
int var17 = var16 - par5;
Block block = Block.blocksList[par1World.getBlockId(var14, var11, var16)];
if ((Math.abs(var15) != var13 || Math.abs(var17) != var13 || par2Random.nextInt(2) != 0 && var12 != 0) &&
(block == null || block.canBeReplacedByLeaves(par1World, var14, var11, var16)))
{
this.setBlockAndMetadata(par1World, var14, var11, var16, Block.leaves.blockID, this.metaLeaves);
}
}
}
}
for (var11 = 0; var11 < var6; ++var11)
{
var12 = par1World.getBlockId(par3, par4 + var11, par5);
Block block = Block.blocksList[var12];
if (var12 == 0 || block == null || block.isLeaves(par1World, par3, par4 + var11, par5))
{
this.setBlockAndMetadata(par1World, par3, par4 + var11, par5, Block.wood.blockID, this.metaWood);
if (this.vinesGrow && var11 > 0)
{
if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 - 1, par4 + var11, par5))
{
this.setBlockAndMetadata(par1World, par3 - 1, par4 + var11, par5, Block.vine.blockID, 8);
}
if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3 + 1, par4 + var11, par5))
{
this.setBlockAndMetadata(par1World, par3 + 1, par4 + var11, par5, Block.vine.blockID, 2);
}
if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var11, par5 - 1))
{
this.setBlockAndMetadata(par1World, par3, par4 + var11, par5 - 1, Block.vine.blockID, 1);
}
if (par2Random.nextInt(3) > 0 && par1World.isAirBlock(par3, par4 + var11, par5 + 1))
{
this.setBlockAndMetadata(par1World, par3, par4 + var11, par5 + 1, Block.vine.blockID, 4);
}
}
}
}
if (this.vinesGrow)
{
for (var11 = par4 - 3 + var6; var11 <= par4 + var6; ++var11)
{
var12 = var11 - (par4 + var6);
var13 = 2 - var12 / 2;
for (var14 = par3 - var13; var14 <= par3 + var13; ++var14)
{
for (var15 = par5 - var13; var15 <= par5 + var13; ++var15)
{
Block block = Block.blocksList[par1World.getBlockId(var14, var11, var15)];
if (block != null && block.isLeaves(par1World, var14, var11, var15))
{
if (par2Random.nextInt(4) == 0 && par1World.getBlockId(var14 - 1, var11, var15) == 0)
{
this.growVines(par1World, var14 - 1, var11, var15, 8);
}
if (par2Random.nextInt(4) == 0 && par1World.getBlockId(var14 + 1, var11, var15) == 0)
{
this.growVines(par1World, var14 + 1, var11, var15, 2);
}
if (par2Random.nextInt(4) == 0 && par1World.getBlockId(var14, var11, var15 - 1) == 0)
{
this.growVines(par1World, var14, var11, var15 - 1, 1);
}
if (par2Random.nextInt(4) == 0 && par1World.getBlockId(var14, var11, var15 + 1) == 0)
{
this.growVines(par1World, var14, var11, var15 + 1, 4);
}
}
}
}
}
if (par2Random.nextInt(5) == 0 && var6 > 5)
{
for (var11 = 0; var11 < 2; ++var11)
{
for (var12 = 0; var12 < 4; ++var12)
{
if (par2Random.nextInt(4 - var11) == 0)
{
var13 = par2Random.nextInt(3);
this.setBlockAndMetadata(par1World, par3 + Direction.offsetX[Direction.footInvisibleFaceRemap[var12]], par4 + var6 - 5 + var11, par5 + Direction.offsetZ[Direction.footInvisibleFaceRemap[var12]], Block.cocoaPlant.blockID, var13 << 2 | var12);
}
}
}
}
}
return true;
}
else
{
return false;
}
}
}
else
{
return false;
}
}
/**
* Grows vines downward from the given block for a given length. Args: World, x, starty, z, vine-length
*/
private void growVines(World par1World, int par2, int par3, int par4, int par5)
{
this.setBlockAndMetadata(par1World, par2, par3, par4, Block.vine.blockID, par5);
int var6 = 4;
while (true)
{
--par3;
if (par1World.getBlockId(par2, par3, par4) != 0 || var6 <= 0)
{
return;
}
this.setBlockAndMetadata(par1World, par2, par3, par4, Block.vine.blockID, par5);
--var6;
}
}
}