Unit weapon rework, titan and bomber enemies added, various fixes

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

@@ -0,0 +1,15 @@
+package io.anuke.mindustry;
+
+import com.badlogic.gdx.graphics.g2d.TextureRegion;
+
+public class GenRegion extends TextureRegion {
+    public String name;
+    public boolean invalid;
+    public ImageContext context;
+
+    public static void validate(TextureRegion region){
+        if(((GenRegion)region).invalid){
+            ((GenRegion) region).context.err("Region does not exist: {0}", ((GenRegion)region).name);
+        }
+    }
+}

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

@@ -2,6 +2,7 @@ package io.anuke.mindustry;
 
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.g2d.TextureRegion;
+import io.anuke.mindustry.entities.units.UnitType;
 import io.anuke.mindustry.type.Item;
 import io.anuke.mindustry.type.Mech;
 import io.anuke.mindustry.type.Upgrade;
@@ -63,6 +64,28 @@ public class Generators {
             }
         });
 
+        context.generate("unit-icons", () -> {
+            for(UnitType type : UnitType.all()){
+
+                type.load();
+                type.weapon.load();
+
+                Image image = context.get(type.region);
+
+                if(!type.isFlying){
+                    image.draw(type.baseRegion);
+                    image.draw(type.legRegion);
+                    image.draw(type.legRegion, true, false);
+                    image.draw(type.region);
+
+                    image.draw(type.weapon.equipRegion, -(int)type.weaponOffsetX, (int)type.weaponOffsetY, false, false);
+                    image.draw(type.weapon.equipRegion, (int)type.weaponOffsetX, (int)type.weaponOffsetY, true, false);
+                }
+
+                image.save("unit-icon-" + type.name);
+            }
+        });
+
         context.generate("ore-icons", () -> {
             for(Block block : Block.all()){
                 if(!(block instanceof OreBlock)) continue;

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

@@ -64,6 +64,8 @@ public class Image {
     }
 
     public void draw(TextureRegion region, int x, int y, boolean flipx, boolean flipy){
+        GenRegion.validate(region);
+
         int ofx = 0, ofy = 0;
 
         if(x < 0){

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

@@ -35,7 +35,11 @@ public class ImageContext {
         for(Region region : data.getRegions()){
             int x = region.left, y = region.top, width = region.width, height = region.height;
 
-            regionCache.put(region.name, new TextureRegion(){
+            regionCache.put(region.name, new GenRegion(){
+                {
+                    name = region.name;
+                    context = ImageContext.this;
+                }
 
                 @Override
                 public int getRegionX(){
@@ -62,6 +66,13 @@ public class ImageContext {
         Core.atlas = new Atlas(){
             @Override
             public TextureRegion getRegion(String name){
+                if(!regionCache.containsKey(name)){
+                    GenRegion region = new GenRegion();
+                    region.name = name;
+                    region.context = ImageContext.this;
+                    region.invalid = true;
+                    return region;
+                }
                 return regionCache.get(name);
             }
 
@@ -87,6 +98,8 @@ public class ImageContext {
     }
 
     public Image get(TextureRegion region){
+        GenRegion.validate(region);
+
         return new Image(image, region);
     }