core/src/ru/deadsoftware/cavedroid/menu/submenus/Menu.java

   1 package ru.deadsoftware.cavedroid.menu.submenus;
   2
   3 import com.badlogic.gdx.Gdx;
   4 import com.badlogic.gdx.files.FileHandle;
   5 import com.badlogic.gdx.graphics.g2d.SpriteBatch;
   6 import com.badlogic.gdx.graphics.g2d.TextureRegion;
   7 import com.badlogic.gdx.utils.ArrayMap;
   8 import com.badlogic.gdx.utils.JsonValue;
   9 import ru.deadsoftware.cavedroid.CaveGame;
  10 import ru.deadsoftware.cavedroid.GameScreen;
  11 import ru.deadsoftware.cavedroid.menu.objects.Button;
  12 import ru.deadsoftware.cavedroid.menu.objects.ButtonDrawer;
  13 import ru.deadsoftware.cavedroid.menu.objects.ButtonEventListener;
  14 import ru.deadsoftware.cavedroid.misc.Assets;
  15
  16 import java.util.HashMap;
  17
  18 public abstract class Menu {
  19
  20     private float width;
  21     private float height;
  22
  23     /**
  24      * {@link ArrayMap} of {@link Button Buttons} of this menu screen
  25      */
  26     private ArrayMap<String, Button> buttons;
  27
  28     /**
  29      * @param width  Viewport width
  30      * @param height Viewport height
  31      */
  32     Menu(float width, float height) {
  33         this.width = width;
  34         this.height = height;
  35         initButtons();
  36     }
  37
  38     /**
  39      * If you are loading buttons from json,
  40      * override this method and create a HashMap with buttons' keys from json as keys
  41      * and {@link ButtonEventListener ButtonEventListeners} as values.
  42      *
  43      * @return empty HashMap if not overridden
  44      */
  45     protected HashMap<String, ButtonEventListener> getButtonEventListeners() {
  46         return new HashMap<>();
  47     }
  48
  49     /**
  50      * You can call this from {@link #initButtons()} to load buttons from json
  51      *
  52      * @param jsonFile A {@link FileHandle} to json file
  53      */
  54     void loadButtonsFromJson(FileHandle jsonFile) {
  55         if (buttons == null) buttons = new ArrayMap<>();
  56         HashMap<String, ButtonEventListener> eventListeners = getButtonEventListeners();
  57         JsonValue json = Assets.jsonReader.parse(jsonFile);
  58         int y = (int) height / 4;
  59         for (JsonValue key = json.child(); key != null; key = key.next(), y += Button.HEIGHT + 10) {
  60             buttons.put(key.name(),
  61                     new Button(Assets.getStringFromJson(key, "label", ""),
  62                             (int) width / 2 - Button.WIDTH / 2,
  63                             Assets.getIntFromJson(key, "y", y), Assets.getIntFromJson(key, "type", Button.NORMAL),
  64                             eventListeners.containsKey(key.name()) ? eventListeners.get(key.name()) : () -> {
  65                             }));
  66         }
  67     }
  68
  69     /**
  70      * Draws the menu with background, logo and it's buttons
  71      *
  72      * @param spriter {@link SpriteBatch} that will draw it. Should be already started.
  73      */
  74     public void draw(SpriteBatch spriter, ButtonDrawer buttonDrawer, float width, float height) {
  75         TextureRegion background = Assets.textureRegions.get("background");
  76         TextureRegion gamelogo = Assets.textureRegions.get("gamelogo");
  77
  78         for (int x = 0; x <= width / 16; x++) {
  79             for (int y = 0; y <= height / 16; y++) {
  80                 spriter.draw(background, x * 16, y * 16);
  81             }
  82         }
  83         spriter.draw(gamelogo, width / 2 - (float) gamelogo.getRegionWidth() / 2, 8);
  84
  85         float inputX = Gdx.input.getX() * width / GameScreen.getWidth();
  86         float inputY = Gdx.input.getY() * height / GameScreen.getHeight();
  87         for (Button button : buttons.values()) {
  88             if (button.getType() > 0) {
  89                 if (button.getRect().contains(inputX, inputY) && (!CaveGame.TOUCH || Gdx.input.isTouched())) {
  90                     button.setType(2);
  91                 } else {
  92                     button.setType(1);
  93                 }
  94             }
  95             button.draw(buttonDrawer);
  96         }
  97     }
  98
  99     public ArrayMap<String, Button> getButtons() {
 100         return buttons;
 101     }
 102
 103     /**
 104      * This method is called from constructor and should initialize {@link #buttons} <br>
 105      * You can run {@link #loadButtonsFromJson(FileHandle)} from it
 106      */
 107     protected abstract void initButtons();
 108 }