/**
* Draw the object and all of its descendants recursively.
*
* <p>TODO: Complete this method
*
* @param gl
*/
public void draw(GL2 gl) {
// don't draw if it is not showing
if (!amShowing) {
return;
}
// TODO: draw the object and all its children recursively
// setting the model transform appropriately
// Call drawSelf() to draw the object itself
gl.glMatrixMode(GL2.GL_MODELVIEW);
{
gl.glPushMatrix();
{
gl.glTranslated(myTranslation[0], myTranslation[1], 0);
gl.glScaled(myScale, myScale, 1);
gl.glRotated(myRotation, 0, 0, 1);
drawSelf(gl);
for (GameObject child : myChildren) {
child.draw(gl);
}
}
gl.glPopMatrix();
}
}
public void display(GLAutoDrawable drawable) {
GL2 gl = drawable.getGL().getGL2();
gl.glMaterialfv(GL.GL_FRONT_AND_BACK, GL2.GL_AMBIENT_AND_DIFFUSE, color, 0);
gl.glRotated(rotateX.getValue(), 1, 0, 0);
gl.glRotated(rotateY.getValue(), 0, 1, 0);
gl.glRotated(rotateZ.getValue(), 0, 0, 1);
gl.glPushMatrix();
gl.glTranslated(translateX.getValue(), translateY.getValue(), translateZ.getValue());
gl.glPushMatrix();
gl.glRotated(90, 1, 0, 0);
gl.glTranslated(0, 0, -height / 2);
glut.glutSolidCylinder(radius, height, 32, 2);
gl.glPopMatrix();
super.display(drawable);
gl.glPopMatrix();
}
void drawPart(Part part, double x, double y, double z, double r) {
gl.glPushMatrix();
gl.glTranslated(x, y, z);
// TODO
gl.glTranslated(0, part.h - part.w / 2, 0);
gl.glRotated(r, 1, 0, 0);
gl.glTranslated(0, part.w / 2 - part.h, 0);
drawCuboid(part);
gl.glPopMatrix();
}
/**
* Draws this robot on the screen.
*
* @param gl The instance of GL2 responsible for drawing the robot on the screen.
* @param glut An instance of GLUT to optionally aid in drawing the robot body.
* @param stickFigure If true, the robot must draw itself as a stick figure rather than a solid
* body.
* @param tAnim Time since the start of the animation in seconds.
* @param lighting The Lighting instance responsible for calculating the lighting in this scene.
* Can be used to set the color of bodies before drawing them.
*/
public void draw(GL2 gl, GLUT glut, boolean stickFigure, float tAnim, Lighting lighting) {
lighting.setMaterial(gl, getMaterial());
gl.glPushMatrix();
{
gl.glTranslated(position.x(), position.y(), position.z());
final double rotationDotY =
direction.dot(Vector.Y) / (direction.length() * Vector.Y.length());
final double rotationDotX =
direction.dot(Vector.X) / (direction.length() * Vector.X.length());
final double rotationAngle = Math.toDegrees(Math.acos(rotationDotY));
gl.glRotated(
(rotationDotX > 0d) ? (-rotationAngle) : (rotationAngle),
Vector.Z.x(),
Vector.Z.y(),
Vector.Z.z());
final double elevationDot =
direction.dot(Vector.Z) / (direction.length() * Vector.Z.length());
final double elevationAngle = Math.toDegrees(Math.asin(elevationDot));
gl.glRotated(elevationAngle, Vector.X.x(), Vector.X.y(), Vector.X.z());
robotBody.draw(gl, glut, stickFigure, tAnim);
}
gl.glPopMatrix();
}