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package net.minecraft.server;
import java.util.Random;
import org.bukkit.craftbukkit.CraftBlockChangeDelegate; // CraftBukkit
public class WorldGenForestTree extends WorldGenTreeAbstract implements BlockSapling.TreeGenerator { // CraftBukkit - add interface
public WorldGenForestTree(boolean flag) {
super(flag);
}
public boolean a(World world, Random random, int i, int j, int k) {
// CraftBukkit start - Moved to generate
return this.generate(new CraftBlockChangeDelegate((org.bukkit.BlockChangeDelegate) world), random, i, j, k);
}
public boolean generate(CraftBlockChangeDelegate world, Random random, int i, int j, int k) {
// CraftBukkit end
int l = random.nextInt(3) + random.nextInt(2) + 6;
boolean flag = true;
if (j >= 1 && j + l + 1 <= 256) {
int i1;
int j1;
for (int k1 = j; k1 <= j + 1 + l; ++k1) {
byte b0 = 1;
if (k1 == j) {
b0 = 0;
}
if (k1 >= j + 1 + l - 2) {
b0 = 2;
}
for (i1 = i - b0; i1 <= i + b0 && flag; ++i1) {
for (j1 = k - b0; j1 <= k + b0 && flag; ++j1) {
if (k1 >= 0 && k1 < 256) {
Block block = world.getType(i1, k1, j1);
if (!this.a(block)) {
flag = false;
}
} else {
flag = false;
}
}
}
}
if (!flag) {
return false;
} else {
Block block1 = world.getType(i, j - 1, k);
if ((block1 == Blocks.GRASS || block1 == Blocks.DIRT) && j < 256 - l - 1) {
this.setType(world, i, j - 1, k, Blocks.DIRT);
this.setType(world, i + 1, j - 1, k, Blocks.DIRT);
this.setType(world, i + 1, j - 1, k + 1, Blocks.DIRT);
this.setType(world, i, j - 1, k + 1, Blocks.DIRT);
int l1 = random.nextInt(4);
i1 = l - random.nextInt(4);
j1 = 2 - random.nextInt(3);
int i2 = i;
int j2 = k;
int k2 = 0;
int l2;
int i3;
for (l2 = 0; l2 < l; ++l2) {
i3 = j + l2;
if (l2 >= i1 && j1 > 0) {
i2 += Direction.a[l1];
j2 += Direction.b[l1];
--j1;
}
Block block2 = world.getType(i2, i3, j2);
if (block2.getMaterial() == Material.AIR || block2.getMaterial() == Material.LEAVES) {
this.setTypeAndData(world, i2, i3, j2, Blocks.LOG2, 1);
this.setTypeAndData(world, i2 + 1, i3, j2, Blocks.LOG2, 1);
this.setTypeAndData(world, i2, i3, j2 + 1, Blocks.LOG2, 1);
this.setTypeAndData(world, i2 + 1, i3, j2 + 1, Blocks.LOG2, 1);
k2 = i3;
}
}
for (l2 = -2; l2 <= 0; ++l2) {
for (i3 = -2; i3 <= 0; ++i3) {
byte b1 = -1;
this.a(world, i2 + l2, k2 + b1, j2 + i3);
this.a(world, 1 + i2 - l2, k2 + b1, j2 + i3);
this.a(world, i2 + l2, k2 + b1, 1 + j2 - i3);
this.a(world, 1 + i2 - l2, k2 + b1, 1 + j2 - i3);
if ((l2 > -2 || i3 > -1) && (l2 != -1 || i3 != -2)) {
byte b2 = 1;
this.a(world, i2 + l2, k2 + b2, j2 + i3);
this.a(world, 1 + i2 - l2, k2 + b2, j2 + i3);
this.a(world, i2 + l2, k2 + b2, 1 + j2 - i3);
this.a(world, 1 + i2 - l2, k2 + b2, 1 + j2 - i3);
}
}
}
if (random.nextBoolean()) {
this.a(world, i2, k2 + 2, j2);
this.a(world, i2 + 1, k2 + 2, j2);
this.a(world, i2 + 1, k2 + 2, j2 + 1);
this.a(world, i2, k2 + 2, j2 + 1);
}
for (l2 = -3; l2 <= 4; ++l2) {
for (i3 = -3; i3 <= 4; ++i3) {
if ((l2 != -3 || i3 != -3) && (l2 != -3 || i3 != 4) && (l2 != 4 || i3 != -3) && (l2 != 4 || i3 != 4) && (Math.abs(l2) < 3 || Math.abs(i3) < 3)) {
this.a(world, i2 + l2, k2, j2 + i3);
}
}
}
for (l2 = -1; l2 <= 2; ++l2) {
for (i3 = -1; i3 <= 2; ++i3) {
if ((l2 < 0 || l2 > 1 || i3 < 0 || i3 > 1) && random.nextInt(3) <= 0) {
int j3 = random.nextInt(3) + 2;
int k3;
for (k3 = 0; k3 < j3; ++k3) {
this.setTypeAndData(world, i + l2, k2 - k3 - 1, k + i3, Blocks.LOG2, 1);
}
int l3;
for (k3 = -1; k3 <= 1; ++k3) {
for (l3 = -1; l3 <= 1; ++l3) {
this.a(world, i2 + l2 + k3, k2 - 0, j2 + i3 + l3);
}
}
for (k3 = -2; k3 <= 2; ++k3) {
for (l3 = -2; l3 <= 2; ++l3) {
if (Math.abs(k3) != 2 || Math.abs(l3) != 2) {
this.a(world, i2 + l2 + k3, k2 - 1, j2 + i3 + l3);
}
}
}
}
}
}
return true;
} else {
return false;
}
}
} else {
return false;
}
}
// CraftBukkit - Changed signature
private void a(CraftBlockChangeDelegate world, int i, int j, int k) {
Block block = world.getType(i, j, k);
if (block.getMaterial() == Material.AIR) {
this.setTypeAndData(world, i, j, k, Blocks.LEAVES2, 1);
}
}
}
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