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