Screen

package com.aezart.darkmaze;

import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;

import javax.swing.JPanel;

public class Screen extends JPanel{
    DarkMaze darkMaze;
    BufferedImage mapImage = new BufferedImage(608, 480, BufferedImage.TYPE_3BYTE_BGR);
    BufferedImage drawingSurface = new BufferedImage(608, 480, BufferedImage.TYPE_3BYTE_BGR);
    BufferedImage lightSurface = new BufferedImage(608, 480, BufferedImage.TYPE_4BYTE_ABGR);
    BufferedImage finalRender = new BufferedImage(608,480,BufferedImage.TYPE_3BYTE_BGR);

    Graphics mapG = mapImage.getGraphics();
    Graphics drawingG = drawingSurface.getGraphics();
    Graphics2D lightG2D = (Graphics2D) lightSurface.getGraphics();
    Graphics finalG = finalRender.getGraphics();
    public Screen(DarkMaze darkMaze){
        this.darkMaze = darkMaze;
    }
    @Override
    protected void paintComponent(Graphics g) {
        long paintTime = System.currentTimeMillis();
        super.paintComponent(g);

        drawingG.drawImage(mapImage, 0, 0, null);
        lightG2D.setComposite(AlphaComposite.getInstance(AlphaComposite.CLEAR));
        lightG2D.fillRect(0, 0, 608, 480);
        lightG2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));

        for (int i = 0; i < darkMaze.coins.length; ++i){
            for (int k = 0; k < darkMaze.coins[0].length; ++k){
                if (darkMaze.coins[i][k]){
                    drawingG.drawImage(darkMaze.tileset, k*64+32, i*64+32, k*64+64, i*64+64, 32, 0, 48, 16, null);
                }
            }
        }


        for (Entity e: darkMaze.entities){
            e.draw(drawingG);
            e.drawLights(lightG2D);
        }

        lightG2D.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_IN));
        lightG2D.drawImage(drawingSurface, 0, 0, null);
        finalG.setColor(Color.black);
        finalG.fillRect(0, 0, 608, 480);
        finalG.drawImage(lightSurface, 0, 0, null);

        finalG.setColor(Color.black);
        finalG.fillRect(0,468,608,480);
        finalG.setColor(Color.white);
        finalG.drawString("Lives: " + darkMaze.lives + " Depth: " + (10*darkMaze.level)  + "ft Coins: " + darkMaze.coinCount, 0, 478);

        for (Entity e: darkMaze.entities){
            e.drawEffects(finalG);
        }

        g.drawImage(finalRender, 0, 0, null);
        System.out.println(System.currentTimeMillis() - paintTime);

    }
}