It is on the display function i am stuck
import javax.media.opengl.;
import javax.media.opengl.glu.;
import com.sun.opengl.utils.; //BufferUtils
import java.io.;
import java.nio.;
import javax.imageio.;
import java.awt.;
import java.net.;
import java.util.;
import java.awt.image.;
import java.awt.event.;
import najgl.model.;
import najgl.model.ms3d.*;
public class JoglHandler implements GLEventListener, KeyListener, MouseListener, MouseMotionListener
{
private GLCanvas canvas = null;
private GLU glu;
private GLUT glut;
private int mouse_x = 0;
private int mouse_y = 0;
private boolean mouse_down = false;
private Model model;
private boolean changeColor = false;
//Filnavnet på modellen
private String model_filename = “data/run.txt”;
private float trans = 0.0f;
private float rot = 0.0f;
private int width, height;
public JoglHandler(GLCanvas canvas)
{
this.canvas = canvas;
}
public void displayChanged(GLAutoDrawable glDrawable,boolean modeChanged, boolean deviceChanged)
{
}
public void reshape(GLAutoDrawable glDrawable, int x, int y, int width, int height)
{
GL gl = glDrawable.getGL();
this.height = height;
this.width = width;
if (height <= 0) // avoid a divide by zero error!
height = 1;
final float h = (float)width / (float)height;
gl.glViewport(0, 0, width, height);
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(45.0f, h, 1.0, 100.0);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
}
public void display(GLAutoDrawable glDrawable)
{
GL gl = glDrawable.getGL();
gl.glClearColor(0.0f,0.0f,0.8f,0.0f);
gl.glClear(GL.GL_COLOR_BUFFER_BIT|GL.GL_DEPTH_BUFFER_BIT);
gl.glLoadIdentity();
gl.glOrtho(0.0f,5.0f,0.0f,5.0f,0.0f,10.0f);
//glu.gluLookAt(0.0f,0.0f,10.0f,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
gl.glPushMatrix();
//Creating a floor
gl.glColor3f(1.0f,1.0f,1.0f);
gl.glTranslatef(0.0f,-10.0f,-20.0f);
gl.glBegin(GL.GL_POLYGON);
gl.glVertex3f(-30.0f,0.0f,-30.0f);
gl.glVertex3f(30.0f,0.0f,-30.0f);
gl.glVertex3f(30.0f,0.0f,30.0f);
gl.glVertex3f(-30.0f,0.0f,30.0f);
gl.glEnd();
gl.glPopMatrix();
gl.glPushMatrix();
if(changeColor)
gl.glColor3f(1.0f,0.0f,0.0f);
else
gl.glColor3f(1.0f,1.0f,1.0f);
gl.glTranslatef(0.0f,-0.0f,trans);
gl.glRotatef(rot, 0.0f,1.0f,0.0f);
gl.glScalef(0.1f,0.1f,0.1f);
if(mouse_down) //THis is where i am stuck
{
if (height <= 0) // avoid a divide by zero error!
height = 1;
final float h = (float)width / (float)height;
int buffsize = 512;
double x = (double) mouse_x, y = (double) mouse_y;
IntBuffer viewPort = BufferUtils.newIntBuffer(4);
IntBuffer selectBuffer = BufferUtils.newIntBuffer(buffsize);
int hits = 0;
gl.glGetIntegerv(GL.GL_VIEWPORT, viewPort);
gl.glSelectBuffer(buffsize, selectBuffer);
gl.glRenderMode(GL.GL_SELECT);
gl.glInitNames();
gl.glPushName(0);
gl.glPushMatrix();
gl.glMatrixMode(GL.GL_PROJECTION);
gl.glLoadIdentity();
glu.gluPerspective(45.0f, h, 1.0, 100.0);
glu.gluPickMatrix(x, (double) viewPort.get(3) - y, 5.0d, 5.0d, viewPort);
gl.glOrtho(0.0f,5.0f,0.0f,5.0f,0.0f,10.0f);
gl.glLoadIdentity();
glu.gluPerspective(45.0f, h, 1.0, 100.0);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
gl.glLoadName(1);
model.draw(); //This is where the model is drawn, using a loader for ms3d ascii models
/gl.glBegin(GL.GL_POLYGON);
gl.glVertex3f(-10.0f,-10.0f,-5.0f);
gl.glVertex3f(10.0f,-10.0f,-5.0f);
gl.glVertex3f(10.0f,10.0f,-5.0f);
gl.glVertex3f(-10.0f,10.0f,-5.0f);
gl.glEnd();/
gl.glPopMatrix();
gl.glFlush();
hits = gl.glRenderMode(GL.GL_RENDER);
System.out.println("Hits: "+hits);
if(hits == 1)
changeColor = !changeColor;
mouse_down = false;
gl.glMatrixMode(GL.GL_MODELVIEW);
}
else
{
/*gl.glBegin(GL.GL_POLYGON);
gl.glVertex3f(-10.0f,-10.0f,-5.0f);
gl.glVertex3f(10.0f,-10.0f,-5.0f);
gl.glVertex3f(10.0f,10.0f,-5.0f);
gl.glVertex3f(-10.0f,10.0f,-5.0f);
gl.glEnd(); */
model.draw();
}
gl.glPopMatrix();
gl.glFlush();
}
private void clearScreen(GLAutoDrawable glDrawable)
{
GL gl = glDrawable.getGL();
gl.glClear(GL.GL_COLOR_BUFFER_BIT|GL.GL_DEPTH_BUFFER_BIT);
gl.glClearColor(0.0f,0.0f,0.0f,0.0f);
}
public void mousePressed(MouseEvent e)
{
//cmd = SELECT;
mouse_x = e.getX();
mouse_y = e.getY();
mouse_down = true;
//System.out.println(e.getX());
}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
public void mouseDragged(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void keyTyped(KeyEvent e)
{}
public void keyReleased(KeyEvent e)
{}
public void keyPressed(KeyEvent e)
{
switch(e.getKeyCode())
{
case KeyEvent.VK_UP:
trans += 10.0f;
//canvas.repaint();
break;
case KeyEvent.VK_DOWN:
trans -= 10.0f;
//canvas.repaint();
break;
case KeyEvent.VK_RIGHT:
rot -= 10.0f;
//canvas.repaint();
break;
case KeyEvent.VK_LEFT:
rot += 10.0f;
//canvas.repaint();
break;
case KeyEvent.VK_Q: //Slakker ned på hvor fort
model.slow_anim(); //animasjonen
break; //skal kjøres
case KeyEvent.VK_W:
model.fast_anim();
break;
case KeyEvent.VK_V:
break;
case KeyEvent.VK_C:
changeColor = !changeColor;
break;
}
}
public void init(GLAutoDrawable glDrawable)
{
GL gl = glDrawable.getGL();
glDrawable.addMouseListener(this);
glDrawable.addMouseMotionListener(this);
glu = new GLU();
glut = new GLUT();
gl.glBlendFunc(GL.GL_SRC_ALPHA,GL.GL_ONE_MINUS_SRC_ALPHA);
gl.glShadeModel(GL.GL_SMOOTH); // Enable Smooth Shading
//gl.glEnable(GL.GL_CULL_FACE);
gl.glClearColor(0.0f, 0.0f, 0.0f, 0.0f); // Black Background
gl.glClearDepth(1.0f); // Depth Buffer Setup
gl.glEnable(GL.GL_DEPTH_TEST);
gl.glEnable(GL.GL_NORMALIZE);
// Enables Depth Testing
gl.glDepthFunc(GL.GL_LEQUAL); // The Type Of Depth Testing To Do
gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST); // Really Nice Perspective Calculations
//Oppretter modell objektet, parameterne er som følger:
//Første parameter er om den inneholder animasjon,
//det andre parameteret er om det skal være wiredframed,
//og det siste er GLAutoDrawable objektet som blir brukt
//av modell loaderen.
model = new MilkshapeModel(true,false,glDrawable);
//Leser inn modellen
model.load(model_filename);
//float light_position[] = { 0.0f,30.0f, 5.0f,1.0f};
//gl.glLightfv(GL.GL_LIGHT0, GL.GL_POSITION, light_position);
float fog_color[] = {1.0f,1.0f,1.0f,1.0f};
//Setter hvor sterk tåken skal være
gl.glFogf(GL.GL_FOG_DENSITY,0.02f);
//Har 3 forskjellige typer tåke,
//De forskjellige er GL_LINEAR OG GL_EXP OG GL_EXP2
gl.glFogi(GL.GL_FOG_MODE,GL.GL_EXP);
//Setter at tåken skal være penest mulig renderert
gl.glHint(GL.GL_FOG_HINT,GL.GL_NICEST);
//Setter start og slutt verdier på tåken
gl.glFogf(GL.GL_FOG_START,1.0f);
gl.glFogf(GL.GL_FOG_END,100.0f);
//Setter fargen
gl.glFogf(GL.GL_FOG_COLOR,0.5f);
gl.glEnable(GL.GL_FOG);
//Enabler en sol
gl.glEnable(GL.GL_LIGHTING);
gl.glEnable(GL.GL_LIGHT0);
gl.glColorMaterial(GL.GL_FRONT,GL.GL_DIFFUSE);
gl.glEnable(GL.GL_COLOR_MATERIAL);
}
}
