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javasoiscool

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  1. Hi! This is a version, which is written in Java using the Lightweight Java Game Library! (LWJGL) : [source lang="java"] import java.awt.event.KeyEvent; import java.io.FileInputStream; import java.io.IOException; import java.util.logging.Level; import java.util.logging.Logger; import org.lwjgl.Sys; import org.lwjgl.opengl.Display; import org.lwjgl.opengl.GL11; import org.lwjgl.util.vector.Vector3f; import org.lwjgl.input.Keyboard; import org.lwjgl.input.Mouse; import org.lwjgl.LWJGLException; import org.lwjgl.opengl.DisplayMode; import org.lwjgl.util.glu.GLU; //First Person Camera Controller public class BasicFPS { //3d vector to store the camera's position in private Vector3f position = null; //the rotation around the Y axis of the camera private float yaw = 0.0f; //the rotation around the X axis of the camera private float pitch = 0.0f; //Constructor that takes the starting x, y, z location of the camera public BasicFPS(float x, float y, float z) { //instantiate position Vector3f to the x y z params. position = new Vector3f(x, y, z); } public BasicFPS() { // This is made so the line FPCameraController app = new FPCameraController(); will work // TODO Auto-generated constructor stub } //increment the camera's current yaw rotation public void yaw(float amount) { //increment the yaw by the amount param yaw += amount; } //increment the camera's current yaw rotation public void pitch(float amount) { //increment the pitch by the amount param pitch += amount; } //moves the camera forward relitive to its current rotation (yaw) public void walkForward(float distance) { position.x -= distance * (float)Math.sin(Math.toRadians(yaw)); position.z += distance * (float)Math.cos(Math.toRadians(yaw)); } //moves the camera backward relitive to its current rotation (yaw) public void walkBackwards(float distance) { position.x += distance * (float)Math.sin(Math.toRadians(yaw)); position.z -= distance * (float)Math.cos(Math.toRadians(yaw)); } //strafes the camera left relitive to its current rotation (yaw) public void strafeLeft(float distance) { position.x -= distance * (float)Math.sin(Math.toRadians(yaw-90)); position.z += distance * (float)Math.cos(Math.toRadians(yaw-90)); } //strafes the camera right relitive to its current rotation (yaw) public void strafeRight(float distance) { position.x -= distance * (float)Math.sin(Math.toRadians(yaw+90)); position.z += distance * (float)Math.cos(Math.toRadians(yaw+90)); } //translates and rotate the matrix so that it looks through the camera //this dose basic what gluLookAt() does public void lookThrough() { //roatate the pitch around the X axis GL11.glRotatef(pitch, 1.0f, 0.0f, 0.0f); //roatate the yaw around the Y axis GL11.glRotatef(yaw, 0.0f, 1.0f, 0.0f); //translate to the position vector's location GL11.glTranslatef(position.x, position.y, position.z); } private static boolean gameRunning=true; private static int targetWidth = 800; private static int targetHeight = 600; private void init(){ //load textures here and other things } private float xrot=0.1f; private float yrot=0.1f; private float zrot=0.1f; /** The texture that’s been loaded */ private static void initDisplay(boolean fullscreen){ DisplayMode chosenMode = null; try { DisplayMode[] modes = Display.getAvailableDisplayModes(); for (int i=0;i<modes.length;i++) { if ((modes[i].getWidth() == targetWidth) && (modes[i].getHeight() == targetHeight)) { chosenMode = modes[i]; break; } } } catch (LWJGLException e) { Sys.alert("Error", "Unable to determine display modes."); System.exit(0); } // at this point if we have no mode there was no appropriate, let the user know // and give up if (chosenMode == null) { Sys.alert("Error", "Unable to find appropriate display mode."); System.exit(0); } try { Display.setDisplayMode(chosenMode); Display.setFullscreen(fullscreen); Display.setTitle("Secret Title"); Display.create(); } catch (LWJGLException e) { Sys.alert("Error","Unable to create display."); System.exit(0); } } private static boolean initGL(){ GL11.glMatrixMode(GL11.GL_PROJECTION); GL11.glLoadIdentity(); // Calculate the aspect ratio of the window GLU.gluPerspective(45.0f,((float)targetWidth)/((float)targetHeight),0.1f,100.0f); GL11.glMatrixMode(GL11.GL_MODELVIEW); GL11.glLoadIdentity(); GL11.glEnable(GL11.GL_TEXTURE_2D); // Enable Texture Mapping ( NEW ) GL11.glShadeModel(GL11.GL_SMOOTH); GL11.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); GL11.glClearDepth(1.0f); GL11.glEnable(GL11.GL_DEPTH_TEST); GL11.glDepthFunc(GL11.GL_LEQUAL); GL11.glHint(GL11.GL_PERSPECTIVE_CORRECTION_HINT, GL11.GL_NICEST); return true; } public boolean isKeyPressed(int keyCode) { // apparently, someone at decided not to use standard // keycode, so we have to map them over: switch(keyCode) { case KeyEvent.VK_SPACE: keyCode = Keyboard.KEY_SPACE; break; case KeyEvent.VK_ESCAPE: keyCode = Keyboard.KEY_ESCAPE; break; case KeyEvent.VK_W: keyCode = Keyboard.KEY_W; break; case KeyEvent.VK_A: keyCode = Keyboard.KEY_A; break; case KeyEvent.VK_S: keyCode = Keyboard.KEY_S; break; case KeyEvent.VK_D: keyCode = Keyboard.KEY_D; break; } return org.lwjgl.input.Keyboard.isKeyDown(keyCode); } private void run(){ BasicFPS camera = new BasicFPS(0, 0, 0); float dx = 0.0f; float dy = 0.0f; float dt = 0.0f; //length of frame float lastTime = 0.0f; // when the last frame was float time = 0.0f; float mouseSensitivity = 0.15f; float movementSpeed = 10.0f; //move 10 units per second //hide the mouse Mouse.setGrabbed(true); while(gameRunning){ update(); render(); Display.update(); //keep looping till the display window is closed the ESC key is down /* while (!Display.isCloseRequested() || !Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)) { */ time = Sys.getTime(); //here is your movement speed, which can be changed to anything dt = 0.0005f; lastTime = time; //distance in mouse movement from the last getDX() call. dx = Mouse.getDX(); //distance in mouse movement from the last getDY() call. dy = Mouse.getDY(); //control camera yaw from x movement from the mouse camera.yaw(dx * mouseSensitivity); //control camera pitch from y movement from the mouse camera.pitch(-dy * mouseSensitivity); //when passing in the distrance to move //we times the movementSpeed with dt this is a time scale //so if its a slow frame u move more then a fast frame //so on a slow computer you move just as fast as on a fast computer //OVER HERE! What do I do to make the boolean canWalk actually work the right way? if (Keyboard.isKeyDown(Keyboard.KEY_W))//move forward { camera.walkForward(movementSpeed*dt); } if (Keyboard.isKeyDown(Keyboard.KEY_S))//move backwards { camera.walkBackwards(movementSpeed*dt); } if (Keyboard.isKeyDown(Keyboard.KEY_A))//strafe left { camera.strafeLeft(movementSpeed*dt); } if (Keyboard.isKeyDown(Keyboard.KEY_D))//strafe right { camera.strafeRight(movementSpeed*dt); } //set the modelview matrix back to the identity GL11.glLoadIdentity(); //look through the camera before you draw anything camera.lookThrough(); //you would draw your scene here. //draw the buffer to the screen //Display.update(); //} // finally check if the user has requested that the display be // shutdown if (Display.isCloseRequested()) { gameRunning = false; Display.destroy(); System.exit(0); } if (Keyboard.isKeyDown(Keyboard.KEY_ESCAPE)) { Sys.alert("Close","To continue, press ESCAPE on your keyboard or OK on the screen."); System.exit(0); } } } private void update(){ xrot+=0.1f; yrot+=0.1f; zrot+=0.1f; } private void render(){ GL11.glClear(GL11.GL_COLOR_BUFFER_BIT|GL11.GL_DEPTH_BUFFER_BIT); //GL11.glLoadIdentity(); GL11.glTranslatef(0.0f,0.0f,-5.0f); // Move Into The Screen 5 Units GL11.glBegin(GL11.GL_QUADS); //HERE IS WHERE YOU BIND A TEXTURE // Front Face GL11.glTexCoord2f(0.0f, 0.0f); GL11.glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom Left Of The Texture and Quad GL11.glTexCoord2f(1.0f, 0.0f); GL11.glVertex3f( 1.0f, -1.0f, 1.0f); // Bottom Right Of The Texture and Quad GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex3f( 1.0f, 1.0f, 1.0f); // Top Right Of The Texture and Quad GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Left Of The Texture and Quad // Back Face GL11.glTexCoord2f(1.0f, 0.0f); GL11.glVertex3f(-1.0f, -1.0f, -1.0f); // Bottom Right Of The Texture and Quad GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex3f(-1.0f, 1.0f, -1.0f); // Top Right Of The Texture and Quad GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f( 1.0f, 1.0f, -1.0f); // Top Left Of The Texture and Quad GL11.glTexCoord2f(0.0f, 0.0f); GL11.glVertex3f( 1.0f, -1.0f, -1.0f); // Bottom Left Of The Texture and Quad // Top Face GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(-1.0f, 1.0f, -1.0f); // Top Left Of The Texture and Quad GL11.glTexCoord2f(0.0f, 0.0f); GL11.glVertex3f(-1.0f, 1.0f, 1.0f); // Bottom Left Of The Texture and Quad GL11.glTexCoord2f(1.0f, 0.0f); GL11.glVertex3f( 1.0f, 1.0f, 1.0f); // Bottom Right Of The Texture and Quad GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex3f( 1.0f, 1.0f, -1.0f); // Top Right Of The Texture and Quad // Bottom Face GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex3f(-1.0f, -1.0f, -1.0f); // Top Right Of The Texture and Quad GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f( 1.0f, -1.0f, -1.0f); // Top Left Of The Texture and Quad GL11.glTexCoord2f(0.0f, 0.0f); GL11.glVertex3f( 1.0f, -1.0f, 1.0f); // Bottom Left Of The Texture and Quad GL11.glTexCoord2f(1.0f, 0.0f); GL11.glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom Right Of The Texture and Quad // Right face GL11.glTexCoord2f(1.0f, 0.0f); GL11.glVertex3f( 1.0f, -1.0f, -1.0f); // Bottom Right Of The Texture and Quad GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex3f( 1.0f, 1.0f, -1.0f); // Top Right Of The Texture and Quad GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f( 1.0f, 1.0f, 1.0f); // Top Left Of The Texture and Quad GL11.glTexCoord2f(0.0f, 0.0f); GL11.glVertex3f( 1.0f, -1.0f, 1.0f); // Bottom Left Of The Texture and Quad // Left Face GL11.glTexCoord2f(0.0f, 0.0f); GL11.glVertex3f(-1.0f, -1.0f, -1.0f); // Bottom Left Of The Texture and Quad GL11.glTexCoord2f(1.0f, 0.0f); GL11.glVertex3f(-1.0f, -1.0f, 1.0f); // Bottom Right Of The Texture and Quad GL11.glTexCoord2f(1.0f, 1.0f); GL11.glVertex3f(-1.0f, 1.0f, 1.0f); // Top Right Of The Texture and Quad GL11.glTexCoord2f(0.0f, 1.0f); GL11.glVertex3f(-1.0f, 1.0f, -1.0f); // Top Left Of The Texture and Quad GL11.glEnd(); } public static void main(String[] args) { BasicFPS main = new BasicFPS(); initDisplay(false); initGL(); main.init(); main.run(); } } [/source] I hope this will help you!
  2. What does gluPerspective do in the Lightweight Java Game Library(LWJGL)? http://t.co/6XzVYA2A