Coverage Summary for Class: Indicator (com.mygdx.game.Entitys)

1 package com.mygdx.game.Entitys;
2 
3 import com.badlogic.gdx.math.Vector2;
4 import com.mygdx.game.Components.*;
5 import com.mygdx.game.Managers.GameManager;
6 import com.mygdx.game.Managers.QuestManager;
7 import com.mygdx.game.Managers.RenderLayer;
8 import com.mygdx.game.Quests.KillQuest;
9 
10 import static java.lang.Math.abs;
11 import static java.lang.Math.max;
12 
13 /**
14  * Added for Assessment 2 in order to increase visual clarity on Kill Quests
15  */
16 public class Indicator extends Entity {
17 	private final Entity target;
18 	private final KillQuest quest;
19 	private Vector2 gradient;
20 
21 	/**
22 	 * Creates an indicator attached to a kill quest and targeting a college
23 	 * @param kq the Kill Quest this indicator is attached to
24 	 */
25 	public Indicator(KillQuest kq) {
26 		super(2);
27 		quest = kq;
28 		target = quest.getTarget().getParent();
29 
30 		Transform t = new Transform();
31 		t.setPosition(800, 800);
32 		Renderable r = new Renderable(10, RenderLayer.Transparent);
33 		r.hide();
34 
35 		addComponents(t, r);
36 		gradient = updateGradient();
37 	}
38 
39 	/**
40 	 * Called once per frame
41 	 */
42 	@Override
43 	public void update(){
44 		if(QuestManager.currentQuest() == quest){
45 			getComponent(Renderable.class).show();
46 		}else{
47 			getComponent(Renderable.class).hide();
48 		}
49 		followPlayer();
50 	}
51 
52 	/**
53 	 * Called when updating the gradient of the Indicator.
54 	 */
55 	public Vector2 updateGradient(){
56 		Player p = GameManager.getPlayer();
57 		Transform self = p.getComponent(Transform.class);
58 		Transform goal = target.getComponent(Transform.class);
59 
60 		// Calculate the gradient to draw the indicator at.
61 		float changeInX = goal.getPosition().x - self.getPosition().x;
62 		float changeInY = goal.getPosition().y - self.getPosition().y;
63 		float scaleFactor = max(abs(changeInX),abs(changeInY));
64 		float dx = changeInX / scaleFactor;
65 		float dy = changeInY / scaleFactor;
66 
67 		return (new Vector2(dx, dy));
68 	}
69 
70 	/**
71 	 * Called when updating the position of the Indicator.
72 	 */
73 	public void followPlayer() {
74 		gradient = updateGradient();
75 		rotateSprite();
76 		Player p = GameManager.getPlayer();
77 		Vector2 position = new Vector2( p.getPosition().x + (50 * gradient.x), p.getPosition().y + (50 * gradient.y) );
78 		getComponent(Transform.class).setPosition(position);
79 	}
80 
81 	/**
82 	 * Called when rotating the sprite of the Indicator.
83 	 */
84 	public void rotateSprite() {
85 		getComponent(Transform.class).setRotation((float) Math.atan2(gradient.y,gradient.x));
86 	}
87 }