Xp.java

package regalowl.hyperconomy;

import org.bukkit.entity.Player;

public class Xp extends BasicObject implements HyperXP {

	public Xp(String name, String economy, String displayName, String aliases, String type, double value, String isstatic, double staticprice, double stock, double median, String initiation, double startprice, double ceiling, double floor, double maxstock) {
		super(name, economy, displayName, aliases, type, value, isstatic, staticprice, stock, median, initiation, startprice, ceiling, floor, maxstock);
	}
	
	public int getBarXpPoints(Player player) {
		int lvl = player.getLevel();
		int exppoints = (int) Math.floor(((3.5 * lvl) + 6.7) * player.getExp() + .5);
		return exppoints;
	}

	public int getXpForNextLvl(int lvl) {
		int exppoints = (int) Math.floor(((3.5 * lvl) + 6.7) + .5);
		return exppoints;
	}

	public int getLvlXpPoints(int lvl) {
		int exppoints = (int) Math.floor((1.75 * Math.pow(lvl, 2)) + (5 * lvl) + .5);
		return exppoints;
	}

	public int getTotalXpPoints(Player player) {
		int lvl = player.getLevel();
		int lvlxp = getLvlXpPoints(lvl);
		int barxp = getBarXpPoints(player);
		int totalxp = lvlxp + barxp;
		return totalxp;
	}

	public int getLvlFromXP(int exp) {
		double lvlraw = (Math.sqrt((exp * 7.0) + 25.0) - 5.0) * (2.0 / 7.0);
		int lvl = (int) Math.floor(lvlraw);
		if ((double) lvl > lvlraw) {
			lvl = lvl - 1;
		}
		return lvl;
	}
	
	public boolean addXp(Player p, int amount) {
		if (p == null || amount < 0) {return false;}
		int totalxp = getTotalXpPoints(p);
		int newxp = totalxp + amount;
		int newlvl = getLvlFromXP(newxp);
		newxp = newxp - getLvlXpPoints(newlvl);
		float xpbarxp = (float) newxp / (float) getXpForNextLvl(newlvl);
		p.setLevel(newlvl);
		p.setExp(xpbarxp);
		return true;
	}
	
	public boolean removeXp(Player p, int amount) {
		if (p == null || amount < 0) {return false;}
		int totalxp = getTotalXpPoints(p);
		int newxp = totalxp - amount;
		if (newxp < 0) {return false;}
		int newlvl = getLvlFromXP(newxp);
		newxp = newxp - getLvlXpPoints(newlvl);
		float xpbarxp = (float) newxp / (float) getXpForNextLvl(newlvl);
		p.setLevel(newlvl);
		p.setExp(xpbarxp);
		return true;
	}

}