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

   1 package ru.deadsoftware.cavedroid.misc;
   2
   3 import com.badlogic.gdx.Input;
   4 import com.badlogic.gdx.files.FileHandle;
   5 import com.badlogic.gdx.graphics.Texture;
   6 import com.badlogic.gdx.graphics.g2d.BitmapFont;
   7 import com.badlogic.gdx.graphics.g2d.GlyphLayout;
   8 import com.badlogic.gdx.graphics.g2d.Sprite;
   9 import com.badlogic.gdx.graphics.g2d.TextureRegion;
  10 import com.badlogic.gdx.math.Rectangle;
  11 import com.badlogic.gdx.utils.ArrayMap;
  12 import com.badlogic.gdx.utils.JsonReader;
  13 import com.badlogic.gdx.utils.JsonValue;
  14 import ru.deadsoftware.cavedroid.game.objects.TouchButton;
  15 import ru.deadsoftware.cavedroid.misc.utils.AssetLoader;
  16
  17 import java.io.File;
  18 import java.util.HashMap;
  19 import java.util.LinkedList;
  20 import java.util.List;
  21 import java.util.Map;
  22
  23 public class Assets {
  24
  25     private static final int BLOCK_DAMAGE_STAGES = 10;
  26
  27     public static final JsonReader jsonReader = new JsonReader();
  28
  29     private static final List<Texture> loadedTextures = new LinkedList<>();
  30
  31     public static final Sprite[][] playerSprite = new Sprite[2][4];
  32     public static final Sprite[][] pigSprite = new Sprite[2][2];
  33
  34     public static final Sprite[] blockDamageSprites = new Sprite[10];
  35
  36     public static final HashMap<String, TextureRegion> textureRegions = new HashMap<>();
  37     public static final ArrayMap<String, TouchButton> guiMap = new ArrayMap<>();
  38     private static final GlyphLayout glyphLayout = new GlyphLayout();
  39     public static BitmapFont minecraftFont;
  40
  41     public static Map<String, Texture> blockTextures = new HashMap<>();
  42     public static Map<String, Texture> itemTextures = new HashMap<>();
  43
  44     public static Sprite joyBackground;
  45     public static Sprite joyStick;
  46
  47     public static void dispose() {
  48         minecraftFont.dispose();
  49         loadedTextures.forEach(Texture::dispose);
  50         loadedTextures.clear();
  51     }
  52
  53     private static Texture loadTexture(FileHandle fileHandle) {
  54         Texture texture = new Texture(fileHandle);
  55         loadedTextures.add(texture);
  56         return texture;
  57     }
  58
  59     private static TextureRegion flippedRegion(Texture texture, int x, int y, int width, int height) {
  60         return new TextureRegion(texture, x, y + height, width, -height);
  61     }
  62
  63     private static Sprite flippedSprite(Texture texture) {
  64         Sprite sprite = new Sprite(texture);
  65         sprite.flip(false, true);
  66         return sprite;
  67     }
  68
  69     private static Sprite flippedSprite(TextureRegion texture) {
  70         Sprite sprite = new Sprite(texture);
  71         sprite.flip(false, true);
  72         return sprite;
  73     }
  74
  75     private static void loadMob(AssetLoader assetLoader, Sprite[][] sprite, String mob) {
  76         for (int i = 0; i < sprite.length; i++) {
  77             for (int j = 0; j < sprite[i].length; j++) {
  78                 sprite[i][j] = flippedSprite(loadTexture(
  79                         assetLoader.getAssetHandle("mobs/" + mob + "/" + i + "_" + j + ".png")));
  80                 sprite[i][j].setOrigin(sprite[i][j].getWidth() / 2, 0);
  81             }
  82         }
  83     }
  84
  85     private static void loadBlockDamage(AssetLoader assetLoader) {
  86         final Texture blockDamageTexture = loadTexture(assetLoader.getAssetHandle("break.png"));
  87         for (int i = 0; i < BLOCK_DAMAGE_STAGES; i++) {
  88             blockDamageSprites[i] = new Sprite(flippedRegion(blockDamageTexture, i * 16, 0, 16, 16));
  89         }
  90     }
  91
  92     private static void setPlayerHeadOrigin() {
  93         for (Sprite[] sprites : playerSprite) {
  94             sprites[0].setOrigin(sprites[0].getWidth() / 2, sprites[0].getHeight());
  95         }
  96     }
  97
  98     /**
  99      * Loads texture names and sizes from <b>json/texture_regions.json</b>, cuts them to TextureRegions
 100      * and puts to {@link #textureRegions} HashMap
 101      */
 102     private static void loadJSON(AssetLoader assetLoader) {
 103         JsonValue json = jsonReader.parse(assetLoader.getAssetHandle("json/texture_regions.json"));
 104         for (JsonValue file = json.child(); file != null; file = file.next()) {
 105             Texture texture = loadTexture(assetLoader.getAssetHandle(file.name() + ".png"));
 106             if (file.size == 0) {
 107                 textureRegions.put(file.name(),
 108                         flippedRegion(texture, 0, 0, texture.getWidth(), texture.getHeight()));
 109             } else {
 110                 for (JsonValue key = file.child(); key != null; key = key.next()) {
 111                     int x = getIntFromJson(key, "x", 0);
 112                     int y = getIntFromJson(key, "y", 0);
 113                     int w = getIntFromJson(key, "w", texture.getWidth());
 114                     int h = getIntFromJson(key, "h", texture.getHeight());
 115                     textureRegions.put(key.name(), flippedRegion(texture, x, y, w, h));
 116                 }
 117             }
 118         }
 119     }
 120
 121     private static int getMouseKey(String name) {
 122         switch (name) {
 123             case "Left":
 124                 return Input.Buttons.LEFT;
 125             case "Right":
 126                 return Input.Buttons.RIGHT;
 127             case "Middle":
 128                 return Input.Buttons.MIDDLE;
 129             case "Back":
 130                 return Input.Buttons.BACK;
 131             case "Forward":
 132                 return Input.Buttons.FORWARD;
 133             default:
 134                 return -1;
 135         }
 136     }
 137
 138     private static void loadTouchButtonsFromJSON(AssetLoader assetLoader) {
 139         JsonValue json = Assets.jsonReader.parse(assetLoader.getAssetHandle("json/touch_buttons.json"));
 140         for (JsonValue key = json.child(); key != null; key = key.next()) {
 141             float x = key.getFloat("x");
 142             float y = key.getFloat("y");
 143             float w = key.getFloat("w");
 144             float h = key.getFloat("h");
 145             boolean mouse = Assets.getBooleanFromJson(key, "mouse", false);
 146             String name = key.getString("key");
 147             int code = mouse ? getMouseKey(name) : Input.Keys.valueOf(name);
 148             if (x < 0) {
 149                 x = assetLoader.getGameRendererWidth() + x;
 150             }
 151             if (y < 0) {
 152                 y = assetLoader.getGameRendererHeight() + y;
 153             }
 154             Assets.guiMap.put(key.name(), new TouchButton(new Rectangle(x, y, w, h), code, mouse));
 155         }
 156
 157     }
 158
 159     private static Texture resolveTexture(AssetLoader assetLoader, String textureName, String lookUpPath, Map<String, Texture> cache) {
 160         if (cache.containsKey(textureName)) {
 161             return cache.get(textureName);
 162         }
 163
 164         final Texture texture = loadTexture(assetLoader.getAssetHandle(lookUpPath + File.separator + textureName + ".png"));
 165         cache.put(textureName, texture);
 166
 167         return texture;
 168     }
 169
 170     public static Texture resolveItemTexture(AssetLoader assetLoader, String textureName) {
 171         return resolveTexture(assetLoader, textureName, "textures/items", itemTextures);
 172     }
 173
 174     public static Texture resolveBlockTexture(AssetLoader assetLoader, String textureName) {
 175         return resolveTexture(assetLoader, textureName, "textures/blocks", blockTextures);
 176     }
 177
 178     private static void loadAllPngsFromDirInto(FileHandle dir, Map<String, Texture> loadInto) {
 179         for (FileHandle handle : dir.list((d, name) -> name.endsWith(".png"))) {
 180             loadInto.put(handle.nameWithoutExtension(), loadTexture(handle));
 181         }
 182     }
 183
 184     private static void loadItems(AssetLoader assetLoader) {
 185         final FileHandle itemsDir = assetLoader.getAssetHandle("textures/items");
 186         loadAllPngsFromDirInto(itemsDir, itemTextures);
 187     }
 188
 189     private static void loadBlocks(AssetLoader assetLoader) {
 190         final FileHandle blocksDir = assetLoader.getAssetHandle("textures/blocks");
 191         loadAllPngsFromDirInto(blocksDir, blockTextures);
 192     }
 193
 194     private static void loadJoystick(AssetLoader assetLoader) {
 195         joyStick = new Sprite(loadTexture(assetLoader.getAssetHandle("joy_stick.png")));
 196         joyBackground = new Sprite(loadTexture(assetLoader.getAssetHandle("joy_background.png")));
 197     }
 198
 199     public static void load(final AssetLoader assetLoader) {
 200         loadMob(assetLoader, playerSprite, "char");
 201         loadMob(assetLoader, pigSprite, "pig");
 202         loadBlockDamage(assetLoader);
 203         loadJSON(assetLoader);
 204         loadBlocks(assetLoader);
 205         loadItems(assetLoader);
 206         loadTouchButtonsFromJSON(assetLoader);
 207         loadJoystick(assetLoader);
 208         setPlayerHeadOrigin();
 209         minecraftFont = new BitmapFont(assetLoader.getAssetHandle("font.fnt"), true);
 210         minecraftFont.getData().setScale(.375f);
 211         minecraftFont.setUseIntegerPositions(false);
 212     }
 213
 214     /**
 215      * @param s string whose width you want to know
 216      * @return A width of string written in {@link #minecraftFont} in pixels
 217      */
 218     public static int getStringWidth(String s) {
 219         glyphLayout.setText(minecraftFont, s);
 220         return (int) glyphLayout.width;
 221     }
 222
 223     /**
 224      * @param s string whose height you want to know
 225      * @return A height of string written in {@link #minecraftFont} in pixels
 226      */
 227     public static int getStringHeight(String s) {
 228         glyphLayout.setText(minecraftFont, s);
 229         return (int) glyphLayout.height;
 230     }
 231
 232     public static int getIntFromJson(JsonValue json, String name, int defaultValue) {
 233         return json.has(name) ? json.getInt(name) : defaultValue;
 234     }
 235
 236     public static float getFloatFromJson(JsonValue json, String name, float defaultValue) {
 237         return json.has(name) ? json.getFloat(name) : defaultValue;
 238     }
 239
 240     public static String getStringFromJson(JsonValue json, String name, String defaultValue) {
 241         return json.has(name) ? json.getString(name) : defaultValue;
 242     }
 243
 244     public static boolean getBooleanFromJson(JsonValue json, String name, boolean defaultValue) {
 245         return json.has(name) ? json.getBoolean(name) : defaultValue;
 246     }
 247
 248 }