package net.glowstone.util;
import net.glowstone.block.GlowBlockState;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.BlockState;
import org.bukkit.material.MaterialData;
import java.util.Collection;
import java.util.HashMap;
/**
* A small utility class that allow to maintain a {@link BlockState}'s
* list in order to capture a chain of modified blocks and update all
* the states in once, or never (ie: event cancelled).
*/
public class BlockStateDelegate {
private final HashMap<Location, BlockState> blockStateMap = new HashMap<Location, BlockState>();
/**
* Sets a block type and add it to the BlockState list.
* @param world the world which contains the block
* @param x the x-coordinate of this block
* @param y the y-coordinate of this block
* @param z the z-coordinate of this block
* @param type the new type of this block
*/
public void setType(World world, int x, int y, int z, Material type) {
final GlowBlockState state = (GlowBlockState) world.getBlockAt(x, y, z).getState();
state.setType(type);
blockStateMap.put(world.getBlockAt(x, y, z).getLocation(), state);
}
/**
* Sets a block type and MaterialData, and add it to the BlockState list.
* @param world the world which contains the block
* @param x the x-coordinate of this block
* @param y the y-coordinate of this block
* @param z the z-coordinate of this block
* @param type the new type of this block
* @param data the new MaterialData of this block
*/
public void setTypeAndData(World world, int x, int y, int z, Material type, MaterialData data) {
final GlowBlockState state = (GlowBlockState) world.getBlockAt(x, y, z).getState();
state.setType(type);
state.setData(data);
blockStateMap.put(world.getBlockAt(x, y, z).getLocation(), state);
}
/**
* Sets a block type, data and add it to the BlockState list.
* @param world the world which contains the block
* @param x the x-coordinate of this block
* @param y the y-coordinate of this block
* @param z the z-coordinate of this block
* @param type the new type of this block
* @param data the new data value of this block
*/
public void setTypeAndRawData(World world, int x, int y, int z, Material type, int data) {
final GlowBlockState state = (GlowBlockState) world.getBlockAt(x, y, z).getState();
state.setType(type);
state.setRawData((byte) data);
blockStateMap.put(world.getBlockAt(x, y, z).getLocation(), state);
}
/**
* Returns the BlockState list
* @return A list with all {@link BlockState}.
*/
public Collection<BlockState> getBlockStates() {
return blockStateMap.values();
}
/**
* Updates all block states contained in the BlockState list.
*/
public void updateBlockStates() {
for (BlockState state : blockStateMap.values()) {
state.update(true);
}
}
/**
* Returns the {@link BlockState} of a block at the given coordinates
* @param world the world which contains the block
* @param x the x-coordinate
* @param y the y-coordinate
* @param z the z-coordinate
* @return The {@link BlockState} state.
*/
public BlockState getBlockState(World world, int x, int y, int z) {
final Location loc = world.getBlockAt(x, y, z).getLocation();
if (blockStateMap.containsKey(loc)) {
return blockStateMap.get(loc);
} else {
return loc.getBlock().getState();
}
}
/**
* Returns the {@link BlockState} of a block at the given location
* @param loc the location which contains the block
* @return The {@link BlockState} state.
*/
public BlockState getBlockState(Location loc) {
if (blockStateMap.containsKey(loc)) {
return blockStateMap.get(loc);
} else {
return loc.getBlock().getState();
}
}
}