core/src/ru/deadsoftware/cavedroid/misc/Assets.java

   1 package ru.deadsoftware.cavedroid.misc;
   2
   3 import com.badlogic.gdx.files.FileHandle;
   4 import com.badlogic.gdx.graphics.Texture;
   5 import com.badlogic.gdx.graphics.g2d.BitmapFont;
   6 import com.badlogic.gdx.graphics.g2d.GlyphLayout;
   7 import com.badlogic.gdx.graphics.g2d.Sprite;
   8 import com.badlogic.gdx.graphics.g2d.TextureRegion;
   9 import com.badlogic.gdx.utils.ArrayMap;
  10 import com.badlogic.gdx.utils.JsonReader;
  11 import com.badlogic.gdx.utils.JsonValue;
  12 import ru.deadsoftware.cavedroid.game.objects.TouchButton;
  13 import ru.deadsoftware.cavedroid.misc.utils.AssetLoader;
  14
  15 import java.util.HashMap;
  16 import java.util.LinkedList;
  17 import java.util.List;
  18 import java.util.Map;
  19
  20 public class Assets {
  21
  22     public static final JsonReader jsonReader = new JsonReader();
  23
  24     private static final List<Texture> loadedTextures = new LinkedList<>();
  25
  26     public static final Sprite[][] playerSprite = new Sprite[2][4];
  27     public static final Sprite[][] pigSprite = new Sprite[2][2];
  28     public static final HashMap<String, TextureRegion> textureRegions = new HashMap<>();
  29     public static final ArrayMap<String, TouchButton> guiMap = new ArrayMap<>();
  30     private static final GlyphLayout glyphLayout = new GlyphLayout();
  31     public static BitmapFont minecraftFont;
  32
  33     public static Map<String, Texture> blockTextures = new HashMap<>();
  34     public static Map<String, Texture> itemTextures = new HashMap<>();
  35
  36     public static void dispose() {
  37         minecraftFont.dispose();
  38         loadedTextures.forEach(Texture::dispose);
  39         loadedTextures.clear();
  40     }
  41
  42     private static Texture loadTexture(FileHandle fileHandle) {
  43         Texture texture = new Texture(fileHandle);
  44         loadedTextures.add(texture);
  45         return texture;
  46     }
  47
  48     private static TextureRegion flippedRegion(Texture texture, int x, int y, int width, int height) {
  49         return new TextureRegion(texture, x, y + height, width, -height);
  50     }
  51
  52     private static Sprite flippedSprite(Texture texture) {
  53         Sprite sprite = new Sprite(texture);
  54         sprite.flip(false, true);
  55         return sprite;
  56     }
  57
  58     private static Sprite flippedSprite(TextureRegion texture) {
  59         Sprite sprite = new Sprite(texture);
  60         sprite.flip(false, true);
  61         return sprite;
  62     }
  63
  64     private static void loadMob(AssetLoader assetLoader, Sprite[][] sprite, String mob) {
  65         for (int i = 0; i < sprite.length; i++) {
  66             for (int j = 0; j < sprite[i].length; j++) {
  67                 sprite[i][j] = flippedSprite(loadTexture(
  68                         assetLoader.getAssetHandle("mobs/" + mob + "/" + i + "_" + j + ".png")));
  69                 sprite[i][j].setOrigin(sprite[i][j].getWidth() / 2, 0);
  70             }
  71         }
  72     }
  73
  74     private static void setPlayerHeadOrigin() {
  75         for (Sprite[] sprites : playerSprite) {
  76             sprites[0].setOrigin(sprites[0].getWidth() / 2, sprites[0].getHeight());
  77         }
  78     }
  79
  80     /**
  81      * Loads texture names and sizes from <b>json/texture_regions.json</b>, cuts them to TextureRegions
  82      * and puts to {@link #textureRegions} HashMap
  83      */
  84     private static void loadJSON(AssetLoader assetLoader) {
  85         JsonValue json = jsonReader.parse(assetLoader.getAssetHandle("json/texture_regions.json"));
  86         for (JsonValue file = json.child(); file != null; file = file.next()) {
  87             Texture texture = loadTexture(assetLoader.getAssetHandle(file.name() + ".png"));
  88             if (file.size == 0) {
  89                 textureRegions.put(file.name(),
  90                         flippedRegion(texture, 0, 0, texture.getWidth(), texture.getHeight()));
  91             } else {
  92                 for (JsonValue key = file.child(); key != null; key = key.next()) {
  93                     int x = getIntFromJson(key, "x", 0);
  94                     int y = getIntFromJson(key, "y", 0);
  95                     int w = getIntFromJson(key, "w", texture.getWidth());
  96                     int h = getIntFromJson(key, "h", texture.getHeight());
  97                     textureRegions.put(key.name(), flippedRegion(texture, x, y, w, h));
  98                 }
  99             }
 100         }
 101     }
 102
 103     private static void loadAllPngsFromDirInto(FileHandle dir, Map<String, Texture> loadInto) {
 104         for (FileHandle handle : dir.list((d, name) -> name.endsWith(".png"))) {
 105             loadInto.put(handle.nameWithoutExtension(), loadTexture(handle));
 106         }
 107     }
 108
 109     private static void loadItems(AssetLoader assetLoader) {
 110         final FileHandle itemsDir = assetLoader.getAssetHandle("textures/items");
 111         loadAllPngsFromDirInto(itemsDir, itemTextures);
 112     }
 113
 114     private static void loadBlocks(AssetLoader assetLoader) {
 115         final FileHandle blocksDir = assetLoader.getAssetHandle("textures/blocks");
 116         loadAllPngsFromDirInto(blocksDir, blockTextures);
 117     }
 118
 119     public static void load(final AssetLoader assetLoader) {
 120         loadMob(assetLoader, playerSprite, "char");
 121         loadMob(assetLoader, pigSprite, "pig");
 122         loadJSON(assetLoader);
 123         loadBlocks(assetLoader);
 124         loadItems(assetLoader);
 125         setPlayerHeadOrigin();
 126         minecraftFont = new BitmapFont(assetLoader.getAssetHandle("font.fnt"), true);
 127         minecraftFont.getData().setScale(.375f);
 128     }
 129
 130     /**
 131      * @param s string whose width you want to know
 132      * @return A width of string written in {@link #minecraftFont} in pixels
 133      */
 134     public static int getStringWidth(String s) {
 135         glyphLayout.setText(minecraftFont, s);
 136         return (int) glyphLayout.width;
 137     }
 138
 139     /**
 140      * @param s string whose height you want to know
 141      * @return A height of string written in {@link #minecraftFont} in pixels
 142      */
 143     public static int getStringHeight(String s) {
 144         glyphLayout.setText(minecraftFont, s);
 145         return (int) glyphLayout.height;
 146     }
 147
 148     public static int getIntFromJson(JsonValue json, String name, int defaultValue) {
 149         return json.has(name) ? json.getInt(name) : defaultValue;
 150     }
 151
 152     public static float getFloatFromJson(JsonValue json, String name, float defaultValue) {
 153         return json.has(name) ? json.getFloat(name) : defaultValue;
 154     }
 155
 156     public static String getStringFromJson(JsonValue json, String name, String defaultValue) {
 157         return json.has(name) ? json.getString(name) : defaultValue;
 158     }
 159
 160     public static boolean getBooleanFromJson(JsonValue json, String name, boolean defaultValue) {
 161         return json.has(name) ? json.getBoolean(name) : defaultValue;
 162     }
 163
 164 }