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package net.minecraft.server;
import java.util.Random;
// CraftBukkit start
import org.bukkit.BlockChangeDelegate;
import org.bukkit.Bukkit;
import org.bukkit.block.BlockState;
import org.bukkit.craftbukkit.CraftWorld;
import org.bukkit.event.world.StructureGrowEvent;
// CraftBukkit end
public class WorldGenTrees extends WorldGenerator {
public WorldGenTrees(boolean flag) {
super(flag);
}
public boolean a(World world, Random random, int i, int j, int k) {
// CraftBukkit start
// sk: The idea is to have (our) WorldServer implement
// BlockChangeDelegate and then we can implicitly cast World to
// WorldServer (a safe cast, AFAIK) and no code will be broken. This
// then allows plugins to catch manually-invoked generation events
return this.generate((BlockChangeDelegate) world, random, i, j, k, null, null, world.getWorld());
}
public boolean generate(BlockChangeDelegate world, Random random, int i, int j, int k, StructureGrowEvent event, ItemStack itemstack, CraftWorld bukkitWorld) {
// CraftBukkit end
int l = random.nextInt(3) + 4;
boolean flag = true;
if (j >= 1 && j + l + 1 <= world.getHeight()) { // CraftBukkit
int i1;
int j1;
int k1;
int l1;
for (i1 = j; i1 <= j + 1 + l; ++i1) {
byte b0 = 1;
if (i1 == j) {
b0 = 0;
}
if (i1 >= j + 1 + l - 2) {
b0 = 2;
}
for (j1 = i - b0; j1 <= i + b0 && flag; ++j1) {
for (k1 = k - b0; k1 <= k + b0 && flag; ++k1) {
if (i1 >= 0 && i1 < world.getHeight()) { // CraftBukkit
l1 = world.getTypeId(j1, i1, k1);
if (l1 != 0 && l1 != Block.LEAVES.id) {
flag = false;
}
} else {
flag = false;
}
}
}
}
if (!flag) {
return false;
} else {
i1 = world.getTypeId(i, j - 1, k);
if ((i1 == Block.GRASS.id || i1 == Block.DIRT.id) && j < world.getHeight() - l - 1) { // CraftBukkit
// CraftBukkit start
if (event == null) {
world.setRawTypeId(i, j - 1, k, Block.DIRT.id);
} else {
BlockState dirtState = bukkitWorld.getBlockAt(i, j - 1, k).getState();
dirtState.setTypeId(Block.DIRT.id);
event.getBlocks().add(dirtState);
}
// CraftBukkit end
int i2;
for (i2 = j - 3 + l; i2 <= j + l; ++i2) {
j1 = i2 - (j + l);
k1 = 1 - j1 / 2;
for (l1 = i - k1; l1 <= i + k1; ++l1) {
int j2 = l1 - i;
for (int k2 = k - k1; k2 <= k + k1; ++k2) {
int l2 = k2 - k;
if ((Math.abs(j2) != k1 || Math.abs(l2) != k1 || random.nextInt(2) != 0 && j1 != 0) && !Block.o[world.getTypeId(l1, i2, k2)]) {
// CraftBukkit start
if (event == null) {
this.a(world, l1, i2, k2, Block.LEAVES.id, 0);
} else {
BlockState leavesState = bukkitWorld.getBlockAt(l1, i2, k2).getState();
leavesState.setTypeId(Block.LEAVES.id);
event.getBlocks().add(leavesState);
}
// CraftBukkit end
}
}
}
}
for (i2 = 0; i2 < l; ++i2) {
j1 = world.getTypeId(i, j + i2, k);
if (j1 == 0 || j1 == Block.LEAVES.id) {
// CraftBukkit start
if (event == null) {
this.a(world, i, j + i2, k, Block.LOG.id, 0);
} else {
BlockState logState = bukkitWorld.getBlockAt(i, j + i2, k).getState();
logState.setTypeId(Block.LOG.id);
event.getBlocks().add(logState);
}
// CraftBukkit end
}
}
// CraftBukkit start
if (event != null) {
Bukkit.getPluginManager().callEvent(event);
if (!event.isCancelled()) {
for (BlockState state : event.getBlocks()) {
state.update(true);
}
}
}
// CraftBukkit end
return true;
} else {
return false;
}
}
} else {
return false;
}
}
}
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