Bullets.java

import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.util.ArrayList;
import java.util.Random;

class Bullets {

	static int startY = 10;
	static ArrayList<Integer> bullets1 = new ArrayList<Integer>();
	static ArrayList<Integer> bullets2 = new ArrayList<Integer>();	
	
	static void addBullet(int y, int x, String whichPlayer)
	{
		if (whichPlayer.equals("player1")) 
		{
			bullets1.add(y);
			bullets1.add(x);
		}
		else
		{
			bullets2.add(y);
			bullets2.add(x);
		}
	}	
	static void draw(Graphics g) throws InterruptedException {

		for (int i = 0; i < bullets2.size(); i += 2) 
		{
			g.drawImage(Toolkit.getDefaultToolkit().getImage("bullet2.png"), bullets2.get(i + 1), bullets2.get(i), null);
			bullets2.set(i, (bullets2.get(i)) - 2);
			
			if (bullets2.get(i) <= 0) {
				bullets2.remove(i);
				bullets2.remove(i);
				i -= 2;
			} else {
				if (collisionCheck(bullets2.get(i)+2, bullets2.get(i+1)+2, Rain.rain)) 
				{
					bullets2.remove(i);
					bullets2.remove(i);
					i -= 2;
				}	
			}

		}
		
		for (int i = 0; i < bullets1.size(); i += 2) 
		{
			g.drawImage(Toolkit.getDefaultToolkit().getImage("bullet2.png"), bullets1.get(i + 1), bullets1.get(i), null);
			bullets1.set(i, (bullets1.get(i)) - 2);

			if (bullets1.get(i) <= 0) {
				bullets1.remove(i);
				bullets1.remove(i);
				i -= 2;
			} else {
				if (collisionCheck(bullets1.get(i)+2, bullets1.get(i+1)+2, Rain.rain)) 
				{
					bullets1.remove(i);
					bullets1.remove(i);
					i -= 2;
				}				
			}
		}
	}

	private static boolean collisionCheck(int bulletY, int bulletX, ArrayList<Object> rain) 
	{
		for (int i = 0; i < rain.size(); i+=4) 
		{
			if (bulletY >= (int)rain.get(i) && bulletY <= (int)rain.get(i)+(int)rain.get(i+3)     &&
				bulletX >= (int)rain.get(i+1) && bulletX <= (int)rain.get(i+1)+(int)rain.get(i+3) ) 
			{
				rain.set(i, -20);
				return true;
			}
		}
		return false;
	}
	
	void update() {

	}

}