public void draw(GL2 gl) {
GLUT glut = new GLUT();
// Color
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_AMBIENT_AND_DIFFUSE, new float[] {1, 1, 1, 1}, 0);
gl.glMaterialfv(GL2.GL_FRONT, GL2.GL_EMISSION, new float[] {0, 0, 0, 1}, 0);
gl.glPushMatrix();
gl.glTranslated(x, y, z);
glut.glutSolidCylinder(0.05, 0.5, 12, 1);
gl.glTranslated(0, 0, 0.5);
gl.glRotated(horizontalDir * 180 / Math.PI + 180, 0, 0, 1);
gl.glRotated(verticalDir * 180 / Math.PI, 0, 1, 0);
ModelTurret.draw(gl);
gl.glPopMatrix();
}
/**
* Draws the body.
*
* <p>Only coded for polygons.
*
* @param gl the OpenGL graphics context
*/
public void render(GL2 gl) {
// save the original transform
gl.glPushMatrix();
// transform the coordinate system from world coordinates to local coordinates
gl.glTranslated(this.transform.getTranslationX(), this.transform.getTranslationY(), 0.0);
// rotate about the z-axis
gl.glRotated(Math.toDegrees(this.transform.getRotation()), 0.0, 0.0, 1.0);
// loop over all the body fixtures for this body
for (BodyFixture fixture : this.fixtures) {
// get the shape on the fixture
Convex convex = fixture.getShape();
// check the shape type
if (convex instanceof Polygon) {
// since Triangle, Rectangle, and Polygon are all of
// type Polygon in addition to their main type
Polygon p = (Polygon) convex;
// set the color
gl.glColor4fv(this.color, 0);
// fill the shape
gl.glBegin(GL2.GL_POLYGON);
for (Vector2 v : p.getVertices()) {
gl.glVertex3d(v.x, v.y, 0.0);
}
gl.glEnd();
// set the color
gl.glColor4f(this.color[0] * 0.8f, this.color[1] * 0.8f, this.color[2] * 0.8f, 1.0f);
// draw the shape
gl.glBegin(GL.GL_LINE_LOOP);
for (Vector2 v : p.getVertices()) {
gl.glVertex3d(v.x, v.y, 0.0);
}
gl.glEnd();
}
// circles and other curved shapes require a little more work, so to keep
// this example short we only include polygon shapes; see the RenderUtilities
// in the Sandbox application
}
// set the original transform
gl.glPopMatrix();
}