package com.io.yutian.gemsystem.util;

import org.bukkit.Color;
import org.bukkit.Location;
import org.bukkit.World;

import java.util.List;
import java.util.Random;

public class RandomUtil {

	public static boolean random(double d) {
		return d >= new Random().nextFloat();
	}

	public static Color getRandomColor() {
		Random random = new Random();
		int r = random.nextInt(256);
		int g = random.nextInt(256);
		int b = random.nextInt(256);
		return Color.fromRGB(r, g, b);
	}
	
	public static Location getRandomLocation(World world, double minX, double maxX, double minZ, double maxZ) {
		double rx = getRandomDouble(minX, maxX, 3);
		double rz = getRandomDouble(minZ, maxZ, 3);
		int y = world.getHighestBlockAt((int)rx, (int)rz).getY()+1;
		Location location = new Location(world, rx, y, rz);
		return location;
	}
	
	public static <E> E getRandomElement(List<E> list) {
		if (list.size() == 0) {
			return null;
		}
		return list.get(getRandomInt(0, list.size()-1));
	}
	
	public static String getRandomString(String[] array) {
		Random r = new Random();
		return array[getRandomInt(0, array.length)];
	}
	
	public static int getRandomInt(int min, int max) {
		if (min == max) {
			return max;
		}
		Random r = new Random();
		int i = min < max ? min : max;
		int a = min < max ? max : min;
		return r.nextInt(a - i + 1) + i;
	}
	
	public static double getRandomDouble(double min, double max, int scl) {
		int pow = (int) Math.pow(10, scl);
		return Math.floor((Math.random() * (max - min) + min) * pow) / pow;
	}

}