204 lines
6.4 KiB
Java
204 lines
6.4 KiB
Java
/*
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* Copyright (c) 2002 Lightweight Java Game Library Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'Light Weight Java Game Library' nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* $Id$
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*
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* Simple java test program.
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*
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* @author elias_naur <elias_naur@users.sourceforge.net>
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* @version $Revision$
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*/
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package org.lwjgl.test.opengl;
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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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import java.nio.*;
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public final class Game {
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static {
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try {
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//find first display mode that allows us 640*480*16
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int mode = -1;
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DisplayMode[] modes = Display.getAvailableDisplayModes();
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for (int i = 0; i < modes.length; i++) {
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if (modes[i].width == 640
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&& modes[i].height == 480
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&& modes[i].bpp >= 16) {
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mode = i;
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break;
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}
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}
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if (mode != -1) {
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//select above found displaymode
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System.out.println("Setting display mode to "+modes[mode]);
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Display.setDisplayMode(modes[mode]);
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System.out.println("Created display.");
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}
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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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}
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}
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public static final GL gl = new GL("LWJGL Game Example", 16, 0, 0,0);
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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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gl.tick();
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if (gl.isMinimized())
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Thread.sleep(200);
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else if (gl.isCloseRequested())
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System.exit(0);
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Keyboard.poll();
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mainLoop();
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render();
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gl.paint();
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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 || Mouse.dwheel != 0)
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System.out.println("Mouse moved " + Mouse.dx + " " + Mouse.dy + " " + Mouse.dwheel);
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for (int i = 0; i < Mouse.buttonCount; 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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for (int i = 0; i < Keyboard.getNumKeyboardEvents(); i++) {
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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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if (Keyboard.key == Keyboard.KEY_T && Keyboard.state)
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System.out.println("Current time: " + Sys.getTime());
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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.glClear(GL.GL_COLOR_BUFFER_BIT);
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GL.glPushMatrix();
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GL.glTranslatef(Display.getWidth() / 2, Display.getHeight() / 2, 0.0f);
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GL.glRotatef(angle, 0, 0, 1.0f);
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GL.glBegin(GL.GL_QUADS);
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GL.glVertex2i(-50, -50);
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GL.glVertex2i(50, -50);
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GL.glVertex2i(50, 50);
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GL.glVertex2i(-50, 50);
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GL.glEnd();
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GL.glPopMatrix();
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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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Sys.setTime(0);
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Sys.setProcessPriority(Sys.HIGH_PRIORITY);
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System.out.println("Timer resolution: " + Sys.getTimerResolution());
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// Go into orthographic projection mode.
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GL.glMatrixMode(GL.GL_PROJECTION);
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GL.glLoadIdentity();
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GLU.gluOrtho2D(0, Display.getWidth(), 0, Display.getHeight());
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GL.glMatrixMode(GL.GL_MODELVIEW);
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GL.glLoadIdentity();
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GL.glViewport(0, 0, Display.getWidth(), Display.getHeight());
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ByteBuffer num_tex_units_buf = ByteBuffer.allocateDirect(4);
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num_tex_units_buf.order(ByteOrder.nativeOrder());
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GL.glGetIntegerv(GL.GL_MAX_TEXTURE_UNITS_ARB, num_tex_units_buf.asIntBuffer());
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System.out.println("Number of texture units: " + num_tex_units_buf.getInt());
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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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try {
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Display.resetDisplayMode();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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