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