1 package com.jed.actor;
2
3 import com.jed.util.BasicShapeRenderer;
4 import com.jed.util.Vector2f;
5
6 /**
7 *
8 * Concrete implementation of {@link com.jed.actor.PhysicsEntity} that represents a "Ball" or circle. The
9 * circle has a color which is represented as its respective Red, Green, and Blue values.
10 *
11 * @author jlinde, Peter Colapietro
12 * @since 0.1.0
13 *
14 */
15 public final class Ball extends PhysicsEntity {
16
17 /**
18 *
19 */
20 private final int segments;
21
22 /**
23 * Ball color's Green value.
24 */
25 private final float g;
26
27 /**
28 * Ball color's Red value.
29 */
30 private final float r;
31
32 /**
33 * Ball color's Blue value.
34 */
35 private final float b;
36
37 /**
38 *
39 * @param displacement displacement.
40 * @param movement movement.
41 * @param bounds bounds.
42 * @param segments segments.
43 * @param r red.
44 * @param g green.
45 * @param b blue.
46 */
47 public Ball(Vector2f displacement, Vector2f movement, Boundary bounds, int segments, float r, float g, float b) {
48 super(displacement, movement, bounds);
49
50 this.r = r;
51 this.g = g;
52 this.b = b;
53
54 this.segments = segments;
55 }
56
57 @Override
58 public double mass() {
59 return getRadius();
60 }
61
62 /**
63 *
64 * @return radius of ball.
65 */
66 public int getRadius() {
67 return ((CircleBoundary) getBounds()).radius;
68 }
69
70 @Override
71 public void render() {
72 setPosition(getPosition().add(getMovement()));
73 BasicShapeRenderer.drawFilledCircle(
74 getPosition().x,
75 getPosition().y,
76 getRadius(),
77 segments,
78 r, g, b);
79
80 }
81 }