public class Cylinder {

	int N;
	Tube tube;
	Disc cap1, cap2;
	Material material;

	public Cylinder(int n) {
		N = 2 * n;

		tube = new Tube(N);
		cap1 = new Disc(N);
		cap2 = new Disc(N);

		reset();
	}

	public void reset() {
		tube.reset();
		cap1.reset();
		cap2.reset();
	}

	public void setMaterial(Material m) {
		tube.setMaterial(m);
		cap1.setMaterial(m);
		cap2.setMaterial(m);
	}
	
	public void bufferTo(double[][] zBuffer, double[][][] frameBuffer, Light[] lights, double focalLength) {
		tube.bufferTo(zBuffer, frameBuffer, lights, focalLength);
		cap1.bufferTo(zBuffer, frameBuffer, lights, focalLength);
		cap2.bufferTo(zBuffer, frameBuffer, lights, focalLength);
	}

	public void transformedBy(Matrix3D t) {
		tube.transformedBy(t);
		
		t.translate(0, 0, -1);
		cap1.transformedBy(t);

		t.translate(0, 0, 2);
		cap2.transformedBy(t);
	}

}