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Added Mouse Support to Gears Applet, This will allow rotating the view using the mouse. 

Fixed view ratio to support all sizes.
This commit is contained in:
kappa1 2009-06-03 18:29:05 +00:00
parent c7eabcad3e
commit 0c244ee74a
1 changed files with 51 additions and 20 deletions
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71
src/java/org/lwjgl/test/applet/GearsApplet.java
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@ -9,6 +9,7 @@ import org.lwjgl.LWJGLException;
import org.lwjgl.opengl.ARBTransposeMatrix;
import org.lwjgl.opengl.Display;
import org.lwjgl.input.Keyboard;
import org.lwjgl.input.Mouse;
import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GLContext;
@ -23,17 +24,21 @@ public class GearsApplet extends Applet {
/** is the game loop running */
boolean running = false;
private float view_rotx = 20.0f;
private float view_roty = 30.0f;
private float view_rotz = 0.0f;
private int gear1;
private int gear2;
private int gear3;
private float angle = 0.0f;
/** variables used to rotate the view */
private float view_rotx = 20.0f;
private float view_roty = 30.0f;
private float view_rotz = 0.0f;
private int gear1;
private int gear2;
private int gear3;
private float angle;
boolean keyDown = false;
private int prevMouseX, prevMouseY;
private boolean mouseButtonDown = false;
/**
* Once the Canvas is created its add notify method will call this method to
@ -44,7 +49,6 @@ public class GearsApplet extends Applet {
public void run() {
running = true;
try {
System.out.println("display_parent.isDisplayable() = " + display_parent.isDisplayable());
Display.setParent(display_parent);
//Display.setVSyncEnabled(true);
Display.create();
@ -138,18 +142,34 @@ public class GearsApplet extends Applet {
} else {
long timeUsed = 5000 + (startTime - System.currentTimeMillis());
startTime = System.currentTimeMillis() + 5000;
/* System.out.println(fps + " frames 2 in " + (float) (timeUsed / 1000f) + " seconds = "
+ (fps / (timeUsed / 1000f)));*/
System.out.println(fps + " frames 2 in " + (float) (timeUsed / 1000f) + " seconds = "
+ (fps / (timeUsed / 1000f)));
fps = 0;
}
if (Keyboard.isKeyDown(Keyboard.KEY_LEFT))
view_roty += .1f;
else if (Keyboard.isKeyDown(Keyboard.KEY_RIGHT))
view_roty -= .1f;
if (Mouse.isButtonDown(0)) {
if (!mouseButtonDown) {
prevMouseX = Mouse.getX();
prevMouseY= Mouse.getY();
}
mouseButtonDown = true;
}
else {
mouseButtonDown = false;
}
if (Keyboard.isKeyDown(Keyboard.KEY_F)) {
keyDown = true;
if (mouseButtonDown) {
int x = Mouse.getX();
int y = Mouse.getY();
float thetaY = 360.0f * ( (float)(x-prevMouseX)/(float)display_parent.getWidth());
float thetaX = 360.0f * ( (float)(prevMouseY-y)/(float)display_parent.getHeight());
prevMouseX = x;
prevMouseY = y;
view_rotx += thetaX;
view_roty += thetaY;
}
// F Key Pressed (i.e. released)
@ -174,25 +194,31 @@ public class GearsApplet extends Applet {
public void drawLoop() {
GL11.glClear(GL11.GL_COLOR_BUFFER_BIT | GL11.GL_DEPTH_BUFFER_BIT);
GL11.glPushMatrix();
GL11.glRotatef(view_rotx, 1.0f, 0.0f, 0.0f);
GL11.glRotatef(view_roty, 0.0f, 1.0f, 0.0f);
GL11.glRotatef(view_rotz, 0.0f, 0.0f, 1.0f);
GL11.glPushMatrix();
GL11.glTranslatef(-3.0f, -2.0f, 0.0f);
GL11.glRotatef(angle, 0.0f, 0.0f, 1.0f);
GL11.glCallList(gear1);
GL11.glPopMatrix();
GL11.glPushMatrix();
GL11.glTranslatef(3.1f, -2.0f, 0.0f);
GL11.glRotatef(-2.0f * angle - 9.0f, 0.0f, 0.0f, 1.0f);
GL11.glCallList(gear2);
GL11.glPopMatrix();
GL11.glPushMatrix();
GL11.glTranslatef(-3.1f, 4.2f, 0.0f);
GL11.glRotatef(-2.0f * angle - 25.0f, 0.0f, 0.0f, 1.0f);
GL11.glCallList(gear3);
GL11.glPopMatrix();
GL11.glPopMatrix();
}
@ -203,6 +229,7 @@ public class GearsApplet extends Applet {
FloatBuffer red = FloatBuffer.wrap(new float[] { 0.8f, 0.1f, 0.0f, 1.0f});
FloatBuffer green = FloatBuffer.wrap(new float[] { 0.0f, 0.8f, 0.2f, 1.0f});
FloatBuffer blue = FloatBuffer.wrap(new float[] { 0.2f, 0.2f, 1.0f, 1.0f});
GL11.glLight(GL11.GL_LIGHT0, GL11.GL_POSITION, pos);
GL11.glEnable(GL11.GL_CULL_FACE);
GL11.glEnable(GL11.GL_LIGHTING);
@ -215,11 +242,13 @@ public class GearsApplet extends Applet {
GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, red);
gear(1.0f, 4.0f, 1.0f, 20, 0.7f);
GL11.glEndList();
gear2 = GL11.glGenLists(1);
GL11.glNewList(gear2, GL11.GL_COMPILE);
GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, green);
gear(0.5f, 2.0f, 2.0f, 10, 0.7f);
GL11.glEndList();
gear3 = GL11.glGenLists(1);
GL11.glNewList(gear3, GL11.GL_COMPILE);
GL11.glMaterial(GL11.GL_FRONT, GL11.GL_AMBIENT_AND_DIFFUSE, blue);
@ -227,11 +256,13 @@ public class GearsApplet extends Applet {
GL11.glEndList();
GL11.glEnable(GL11.GL_NORMALIZE);
GL11.glMatrixMode(GL11.GL_PROJECTION);
/* System.err.println("GL_VENDOR: " + GL11.glGetString(GL11.GL_VENDOR));
System.err.println("GL_VENDOR: " + GL11.glGetString(GL11.GL_VENDOR));
System.err.println("GL_RENDERER: " + GL11.glGetString(GL11.GL_RENDERER));
System.err.println("GL_VERSION: " + GL11.glGetString(GL11.GL_VERSION));
System.err.println();
System.err.println("glLoadTransposeMatrixfARB() supported: " + GLContext.getCapabilities().GL_ARB_transpose_matrix);*/
System.err.println("glLoadTransposeMatrixfARB() supported: " + GLContext.getCapabilities().GL_ARB_transpose_matrix);
if (!GLContext.getCapabilities().GL_ARB_transpose_matrix) {
// --- not using extensions
GL11.glLoadIdentity();
@ -243,7 +274,7 @@ public class GearsApplet extends Applet {
identityTranspose.flip();
ARBTransposeMatrix.glLoadTransposeMatrixARB(identityTranspose);
}
float h = (float) 300 / (float) 300;
float h = (float) display_parent.getHeight() / (float) display_parent.getWidth();
GL11.glFrustum(-1.0f, 1.0f, -h, h, 5.0f, 60.0f);
GL11.glMatrixMode(GL11.GL_MODELVIEW);
GL11.glLoadIdentity();
@ -362,4 +393,4 @@ public class GearsApplet extends Applet {
}
GL11.glEnd();
}
}
}