Java2DGameTemplate.java

import java.awt.Canvas;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.image.BufferStrategy;

import javax.swing.JFrame;

public class Java2DGameTemplate {
	public static void main(String[] args) throws InterruptedException {

		// Initialize the window and canvas
		JFrame frame = new JFrame();
		Canvas canvas = new Canvas();
		canvas.setPreferredSize(new Dimension(512, 512));
		frame.getContentPane().add(canvas);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.pack();
		frame.setVisible(true);

		// Wait for the canvas to be ready
		while (canvas.getBufferStrategy() == null) {
			canvas.createBufferStrategy(2);
			Thread.yield();
		}

		// TODO Initialize game variables
		//int counter = 0; // Example

		// Game and Render Loop
		while (true) {
			
			// TODO Put game logic here
			//counter++; // Example

			// Grab a drawing context
			BufferStrategy bufferStrategy = canvas.getBufferStrategy();
			Graphics g = bufferStrategy.getDrawGraphics();

			//Get the width and height of the canvas
			int width = canvas.getWidth();
			int height = canvas.getHeight();
			
			// Clear the frame with a background color
			g.setColor(Color.white);
			g.fillRect(0, 0, width, height);

			// TODO Put game rendering here
			//g.setColor(Color.black); // Example
			//g.drawString("Counter: " + counter, 20, 20); // Example
			//g.drawLine(counter % width, 0, counter%width, height); //Example
			//g.drawRect(width/4, height/4, width/2, height/2); //Example

			// Release the drawing context and update the canvas
			g.dispose();
			bufferStrategy.show();

			// Wait the loop so it doesn't go too fast
			Thread.sleep(20);
		}

	}
}