Improved texture gen system, mech icon generation

packer/src/io/anuke/mindustry/ImageContext.java

@@ -0,0 +1,97 @@
+package io.anuke.mindustry;
+
+import com.badlogic.gdx.files.FileHandle;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas.TextureAtlasData;
+import com.badlogic.gdx.graphics.g2d.TextureAtlas.TextureAtlasData.Region;
+import com.badlogic.gdx.graphics.g2d.TextureRegion;
+import com.badlogic.gdx.utils.ObjectMap;
+import io.anuke.mindustry.core.ContentLoader;
+import io.anuke.ucore.core.Core;
+import io.anuke.ucore.core.Timers;
+import io.anuke.ucore.util.Atlas;
+import io.anuke.ucore.util.Log;
+import io.anuke.ucore.util.Log.LogHandler;
+import io.anuke.ucore.util.Log.NoopLogHandler;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.File;
+import java.io.IOException;
+
+public class ImageContext {
+    private BufferedImage image;
+
+    public void load() throws IOException{
+        Log.setLogger(new NoopLogHandler());
+        ContentLoader.load();
+        Log.setLogger(new LogHandler());
+
+        String spritesFolder = new File("../../../assets/sprites").getAbsolutePath();
+        TextureAtlasData data = new TextureAtlasData(new FileHandle(spritesFolder + "/sprites.atlas"),
+                new FileHandle(spritesFolder), false);
+
+        ObjectMap<String, TextureRegion> regionCache = new ObjectMap<>();
+
+        for(Region region : data.getRegions()){
+            int x = region.left, y = region.top, width = region.width, height = region.height;
+
+            regionCache.put(region.name, new TextureRegion(){
+
+                @Override
+                public int getRegionX(){
+                    return x;
+                }
+
+                @Override
+                public int getRegionY(){
+                    return y;
+                }
+
+                @Override
+                public int getRegionWidth(){
+                    return width;
+                }
+
+                @Override
+                public int getRegionHeight(){
+                    return height;
+                }
+            });
+        }
+
+        Core.atlas = new Atlas(){
+            @Override
+            public TextureRegion getRegion(String name){
+                return regionCache.get(name);
+            }
+
+            @Override
+            public boolean hasRegion(String s) {
+                return regionCache.containsKey(s);
+            }
+        };
+
+        Core.atlas.setErrorRegion("error");
+
+        image = ImageIO.read(new File(spritesFolder + "/sprites.png"));
+    }
+
+    public void generate(String name, Runnable run){
+        Timers.mark();
+        run.run();
+        Log.info("&ly[Generator]&lc Time to generate &lm{0}&lc: &lg{1}&lcms", name, Timers.elapsed());
+    }
+
+    public Image get(String name){
+        return get(Core.atlas.getRegion(name));
+    }
+
+    public Image get(TextureRegion region){
+        return new Image(image, region);
+    }
+
+    public void err(String message, Object... args){
+        Log.err(message, args);
+        System.exit(-1);
+    }
+}