1 package com.mygdx.game.UI;
2
3 import com.badlogic.gdx.Gdx;
4 import com.badlogic.gdx.ScreenAdapter;
5 import com.badlogic.gdx.scenes.scene2d.Actor;
6 import com.mygdx.game.PirateGame;
7
8 import java.util.ArrayList;
9
10 import static com.mygdx.utils.Constants.UPDATE_VIEWPORT;
11
12 /**
13 * Base class for UI screens. Contains and draws UI actors added in subclasses.
14 */
15 public abstract class Page extends ScreenAdapter {
16 PirateGame parent;
17
18
19 protected ArrayList<Actor> actors;
20
21 public Page(PirateGame parent) {
22 this.parent = parent;
23 actors = new ArrayList<>();
24 CreateActors();
25 }
26
27 protected abstract void CreateActors();
28
29 /**
30 * Called once the page is show sets input handler and adds actors
31 */
32 @Override
33 public void show() {
34 // button.addListener(new ChangeListener() {
35 // public void changed (ChangeEvent event, Actor actor) {
36 // System.out.println("Clicked! Is checked: " + button.isChecked());
37 // button.setText("Good job!");
38 // }
39 // });
40 super.show();
41 Gdx.input.setInputProcessor(parent.stage);
42 for (Actor a : actors) {
43 parent.stage.addActor(a);
44 }
45 }
46
47 /**
48 * draws the stage and acts upon it also calls update
49 *
50 * @param delta delta time
51 */
52 @Override
53 public void render(float delta) {
54 update();
55 super.render(delta);
56 parent.stage.act(delta);
57 parent.stage.draw();
58 }
59
60 /**
61 * Called once the page is hidden. sets input handler to null and clears teh stage
62 */
63 @Override
64 public void hide() {
65 super.hide();
66 Gdx.input.setInputProcessor(null);
67 parent.stage.clear();
68 }
69
70 /**
71 * Called once the window is resized
72 * updates constants and stage
73 *
74 * @param width new dim x
75 * @param height new dom y
76 */
77 @Override
78 public void resize(int width, int height) {
79 super.resize(width, height);
80 UPDATE_VIEWPORT(width, height);
81 parent.stage.getCamera().viewportWidth = width;
82 parent.stage.getCamera().viewportHeight = height;
83 parent.stage.getViewport().update(width, height, true);
84 }
85
86 /**
87 * Called once per frame
88 */
89 protected void update() {
90
91 }
92 }