import javax.media.opengl.GL;
import javax.media.opengl.GLAutoDrawable;
import javax.media.opengl.GLEventListener;
import javax.media.opengl.glu.GLU;
import com.sun.opengl.util.j2d.TextRenderer;
import java.awt.Font;
import java.awt.geom.*;
import java.awt.event.*;
import java.io.*;
import com.sun.opengl.util.texture.*;
class MenuRenderer implements GLEventListener
{
private GLU glu = new GLU();
private TextRenderer renderer;
private boolean[] key, oldKey=Input.keysPressed();
private int menuOption=1;
private boolean newTexture = true;
private boolean flushTexture;
private File menuBG = new File ("/Users/home/Desktop/JOGL_tests/menubg.png");
private Texture texture;
public void display(GLAutoDrawable gLDrawable)
{
key = Input.keysPressed();
final GL gl = gLDrawable.getGL();
gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
gl.glLoadIdentity();
if (flushTexture)
{
flushTexture = false;
if (texture != null)
{
texture.dispose();
texture = null;
}
}
if (newTexture)
{
newTexture = false;
if (texture != null)
{
texture.dispose();
texture = null;
}
try
{
texture = TextureIO.newTexture(menuBG, true);
}
catch (IOException e)
{
e.printStackTrace();
ByteArrayOutputStream bos = new ByteArrayOutputStream();
e.printStackTrace(new PrintStream(bos));
return;
}
}
texture.enable();
texture.bind();
gl.glTexEnvi(GL.GL_TEXTURE_ENV, GL.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
TextureCoords coords = texture.getImageTexCoords();
gl.glBegin(GL.GL_QUADS);
//Background
gl.glTexCoord2f(coords.left(), coords.bottom());
gl.glVertex3f(-4.01f, -2.9f, -7f);
gl.glTexCoord2f(coords.right(), coords.bottom());
gl.glVertex3f(4.01f, -2.9f, -7f);
gl.glTexCoord2f(coords.right(), coords.top());
gl.glVertex3f(4.01f, 3.1f, -7f);
gl.glTexCoord2f(coords.left(), coords.top());
gl.glVertex3f(-4.01f, 3.1f, -7f);
gl.glEnd();
texture.disable(); // Finish texture/Background
gl.glBegin(GL.GL_QUADS); // Draw Quads
if ((key[13] && key[13] != oldKey[13]) || (key[3] && key[3] != oldKey[3]) )//if Up or Blue
menuOption -= 1;
if ((key[17] && key[17] != oldKey[17]) || (key[0] && key[0] != oldKey[0]) )//if Down or Yellow
menuOption += 1;
if (menuOption >3)
menuOption=1;
if (menuOption <1)
menuOption=3;
if (menuOption==1 && key[0])
Game.gameState = "game";
//Option1Quad
if (menuOption ==1)
gl.glColor3f(1f, 1f, 1f);
else
gl.glColor3f(16f/255f, 191f/255f, 78f/255f); //RBG 16, 191, 78
gl.glVertex3f(-0.7f, 1.02f, -3.2f); // Frontmost Right Of The Quad
gl.glVertex3f(-1.4f, 1.04f, -3.0f); // Frontmost Left Of The Quad
gl.glVertex3f(-1.4f, 0.68f, -3.0f); // Farther Right Of The Quad
gl.glVertex3f(-0.7f, 0.73f, -3.2f); // Farther Left Of The Quad
//Option2Quad
if (menuOption ==2)
gl.glColor3f(1f, 1f, 1f);
else
gl.glColor3f(16f/255f, 191f/255f, 78f/255f); //RBG 16, 191, 78
gl.glVertex3f(-0.7f, 0.48f, -3.2f); // Frontmost Right Of The Quad
gl.glVertex3f(-1.4f, 0.50f, -3.0f); // Frontmost Left Of The Quad
gl.glVertex3f(-1.4f, 0.14f, -3.0f); // Farther Right Of The Quad
gl.glVertex3f(-0.7f, 0.19f, -3.2f); // Farther Left Of The Quad
//Option3Quad
if (menuOption ==3)
gl.glColor3f(1f, 1f, 1f);
else
gl.glColor3f(16f/255f, 191f/255f, 78f/255f); //RBG 16, 191, 78
gl.glVertex3f(-0.7f, 0.14f-.20f, -3.2f); // Frontmost Right Of The Quad
gl.glVertex3f(-1.4f, 0.16f-.20f, -3.0f); // Frontmost Left Of The Quad
gl.glVertex3f(-1.4f, -0.20f-.20f, -3.0f); // Farther Right Of The Quad
gl.glVertex3f(-0.7f, -0.15f-.20f, -3.2f); // Farther Left Of The Quad
gl.glEnd(); // Done Drawing The Quads
gl.glFlush();
renderer.begin3DRendering();
if(menuOption ==1)
renderer.setColor(0.0f, 0.0f, 0.0f, 1.0f);
else
renderer.setColor(1.0f, 1.0f, 1.0f, 1.0f);
renderer.draw3D("Play", -1.2f, 0.8f, -3.0f, 0.003f); //Option1
if(menuOption ==2)
renderer.setColor(0.0f, 0.0f, 0.0f, 1.0f);
else
renderer.setColor(1.0f, 1.0f, 1.0f, 1.0f);
renderer.draw3D("Options", -1.25f, 0.27f, -3.0f, 0.003f); //Option2
if(menuOption ==3)
renderer.setColor(0.0f, 0.0f, 0.0f, 1.0f);
else
renderer.setColor(1.0f, 1.0f, 1.0f, 1.0f);
renderer.draw3D("Quit", -1.2f, -0.24f, -3.0f, 0.003f); //Option3
// ... more draw commands, color changes, etc.
renderer.end3DRendering();
oldKey = key;
try { Thread.sleep(1); } catch (Exception e) {}
}
public void displayChanged(GLAutoDrawable gLDrawable,
boolean modeChanged, boolean deviceChanged) {}
public void flushTexture()
{
flushTexture = true;
}
public void init(GLAutoDrawable gLDrawable)
{
renderer = new TextRenderer(new Font("SansSerif", Font.BOLD, 36)); //creates textrenderer
GL gl = gLDrawable.getGL();
gl.glShadeModel(GL.GL_SMOOTH); // Enable Smooth Shading
gl.glClearColor(40f/255f, 109f/255f, 154f/255f, 1.0f); // 40, 109, 154
gl.glClearDepth(1.0f); // Depth Buffer Setup
gl.glEnable(GL.GL_DEPTH_TEST); // Enables Depth Testing
gl.glDepthFunc(GL.GL_LEQUAL); // The Type Of Depth Testing To Do
// Really Nice Perspective Calculations
gl.glHint(GL.GL_PERSPECTIVE_CORRECTION_HINT, GL.GL_NICEST);
}
public void reshape(GLAutoDrawable gLDrawable, int x, int y, int width,
int height)
{
final GL gl = gLDrawable.getGL();
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, 20.0);
gl.glMatrixMode(GL.GL_MODELVIEW);
gl.glLoadIdentity();
}
}