LightwalkSpell.java

package com.nisovin.magicspells.spells.buff;

import java.util.HashMap;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.material.MaterialData;

import com.nisovin.magicspells.materials.MagicBlockMaterial;
import com.nisovin.magicspells.materials.MagicMaterial;
import com.nisovin.magicspells.spells.BuffSpell;
import com.nisovin.magicspells.util.MagicConfig;
import com.nisovin.magicspells.util.Util;

public class LightwalkSpell extends BuffSpell {
	
	private HashMap<String, Block> lightwalkers;
	private MagicMaterial mat = new MagicBlockMaterial(new MaterialData(Material.GLOWSTONE));

	public LightwalkSpell(MagicConfig config, String spellName) {
		super(config, spellName);
				
		lightwalkers = new HashMap<String, Block>();
	}

	@Override
	public boolean castBuff(Player player, float power, String[] args) {
		lightwalkers.put(player.getName(), null);
		return true;
	}
	
	@EventHandler(priority=EventPriority.MONITOR)
	public void onPlayerMove(PlayerMoveEvent event) {
		if (lightwalkers.containsKey(event.getPlayer().getName())) {
			Player p = event.getPlayer();
			Block oldBlock = lightwalkers.get(p.getName());
			Block newBlock = p.getLocation().getBlock().getRelative(BlockFace.DOWN);
			if ((oldBlock == null || !oldBlock.equals(newBlock)) && allowedType(newBlock.getType()) && newBlock.getType() != Material.AIR) {
				if (isExpired(p)) {
					turnOff(p);
				} else {
					if (oldBlock != null) {
						Util.restoreFakeBlockChange(p, oldBlock);
					}
					Util.sendFakeBlockChange(p, newBlock, mat);
					lightwalkers.put(p.getName(), newBlock);
					addUse(p);
					chargeUseCost(p);
				}
			}
		}
	}
	
	private boolean allowedType(Material mat) {
		return mat == Material.DIRT || 
			mat == Material.GRASS ||
			mat == Material.GRAVEL ||
			mat == Material.STONE ||
			mat == Material.COBBLESTONE ||
			mat == Material.WOOD || 
			mat == Material.LOG || 
			mat == Material.NETHERRACK ||
			mat == Material.SOUL_SAND ||
			mat == Material.SAND ||
			mat == Material.SANDSTONE ||
			mat == Material.GLASS ||
			mat == Material.WOOL ||
			mat == Material.DOUBLE_STEP ||
			mat == Material.BRICK ||
			mat == Material.OBSIDIAN;
	}
	
	@Override
	public void turnOffBuff(Player player) {
		Block b = lightwalkers.remove(player.getName());
		if (b != null) {
			Util.restoreFakeBlockChange(player, b);
		}
	}

	@Override
	protected void turnOff() {
		for (String s : lightwalkers.keySet()) {
			Player p = Bukkit.getServer().getPlayer(s);
			if (p != null) {
				Block b = lightwalkers.get(s);
				if (b != null) {
					Util.restoreFakeBlockChange(p, b);
				}
			}
		}
		lightwalkers.clear();
	}

	@Override
	public boolean isActive(Player player) {
		return lightwalkers.containsKey(player.getName());
	}

}