132 lines
3.7 KiB
Java
132 lines
3.7 KiB
Java
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import org.lwjgl.*;
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import org.lwjgl.opengl.*;
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import org.lwjgl.input.*;
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public final class Game {
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static {
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try {
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DisplayMode[] modes = Display.getAvailableDisplayModes();
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System.out.println("Available display modes:");
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for (int i = 0; i < modes.length; i ++)
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System.out.println(modes[i]);
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// For now let's just pick a mode we're certain to have
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Display.create(new DisplayMode(640, 480, 16, 60), true);
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System.out.println("Created display.");
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} catch (Exception e) {
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System.err.println("Failed to create display due to "+e);
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System.exit(1);
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}
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}
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public static final GL gl = new GL(16, 0, 16, 8);
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public static final GLU glu = new GLU(gl);
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static {
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try {
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gl.create();
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System.out.println("Created OpenGL.");
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} catch (Exception e) {
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System.err.println("Failed to create OpenGL due to "+e);
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System.exit(1);
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}
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}
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/** Is the game finished? */
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private static boolean finished;
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/** A rotating square! */
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private static float angle;
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/**
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* No construction allowed
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*/
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private Game() {
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}
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public static void main(String[] arguments) {
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try {
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init();
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while (!finished) {
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// Keyboard.poll();
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mainLoop();
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render();
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gl.swapBuffers();
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}
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} catch (Throwable t) {
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t.printStackTrace();
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} finally {
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cleanup();
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}
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}
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/**
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* All calculations are done in here
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*/
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private static void mainLoop() {
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angle += 1f;
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if (angle > 360.0f)
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angle = 0.0f;
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Mouse.poll();
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if (Mouse.dx != 0 || Mouse.dy != 0)
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System.out.println("Mouse moved " + Mouse.dx + " " + Mouse.dy);
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for (int i = 0; i < 8; i++)
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if (Mouse.isButtonDown(i))
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System.out.println("Button " + i + " down");
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/* Keyboard.poll();
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if (Keyboard.isKeyDown(Keyboard.KEY_ESCAPE))
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finished = true;*/
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Keyboard.read();
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if (Keyboard.getNumKeyboardEvents() > 0) {
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Keyboard.next();
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if (Keyboard.key == Keyboard.KEY_ESCAPE && Keyboard.state)
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finished = true;
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}
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}
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/**
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* All rendering is done in here
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*/
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private static void render() {
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gl.clear(GL.COLOR_BUFFER_BIT);
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gl.pushMatrix();
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gl.translatef(Display.getWidth() / 2, Display.getHeight() / 2, 0.0f);
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gl.rotatef(angle, 0, 0, 1.0f);
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gl.begin(GL.QUADS);
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gl.vertex2i(-50, -50);
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gl.vertex2i(50, -50);
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gl.vertex2i(50, 50);
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gl.vertex2i(-50, 50);
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gl.end();
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gl.popMatrix();
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}
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/**
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* Initialize
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*/
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private static void init() throws Exception {
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Keyboard.create();
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Keyboard.enableBuffer();
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Mouse.create();
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// Go into orthographic projection mode.
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gl.matrixMode(GL.PROJECTION);
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gl.loadIdentity();
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glu.ortho2D(0, Display.getWidth(), 0, Display.getHeight());
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gl.matrixMode(GL.MODELVIEW);
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gl.loadIdentity();
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gl.viewport(0, 0, Display.getWidth(), Display.getHeight());
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// Fix the refresh rate to the display frequency.
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gl.wglSwapIntervalEXT(1);
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}
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/**
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* Cleanup
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*/
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private static void cleanup() {
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Keyboard.destroy();
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Mouse.destroy();
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gl.destroy();
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Display.destroy();
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}
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}
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