T4/5 naval / Controversial weapon outlines

tools/src/mindustry/tools/Generators.java

@@ -306,10 +306,22 @@ public class Generators{
         ImagePacker.generate("unit-icons", () -> content.units().each(type -> {
             if(type.isHidden()) return; //hidden units don't generate
 
+            ObjectSet<String> outlined = new ObjectSet<>();
+
             try{
                 type.load();
                 type.init();
 
+                //TODO decide whether to keep weapon outlines or not
+                if(true)
+                for(Weapon weapon : type.weapons){
+                    if(weapon.rotate && outlined.add(weapon.name) && ImagePacker.has(weapon.name)){
+                        ImagePacker.get(weapon.name).outline(4, Pal.darkerMetal).save(weapon.name);
+
+                        ((GenRegion)Core.atlas.find(weapon.name)).path.delete();
+                    }
+                }
+
                 Image image = ImagePacker.get(type.parts > 0 ? type.partRegions[0] : type.region);
                 for(int i = 1; i < type.parts; i++){
                     image.draw(ImagePacker.get(type.partRegions[i]));

tools/src/mindustry/tools/Image.java

@@ -3,6 +3,7 @@ package mindustry.tools;
 import arc.func.*;
 import arc.graphics.Color;
 import arc.graphics.g2d.*;
+import arc.math.*;
 import arc.struct.*;
 import arc.util.*;
 import mindustry.tools.ImagePacker.*;
@@ -60,6 +61,33 @@ class Image{
         return color;
     }
 
+    Image outline(int radius, Color outlineColor){
+        Image out = copy();
+        for(int x = 0; x < out.width; x++){
+            for(int y = 0; y < out.height; y++){
+
+                Color color = getColor(x, y);
+                out.draw(x, y, color);
+                if(color.a < 1f){
+                    boolean found = false;
+                    outer:
+                    for(int rx = -radius; rx <= radius; rx++){
+                        for(int ry = -radius; ry <= radius; ry++){
+                            if(Mathf.dst(rx, ry) <= radius && getColor(rx + x, ry + y).a > 0.01f){
+                                found = true;
+                                break outer;
+                            }
+                        }
+                    }
+                    if(found){
+                        out.draw(x, y, outlineColor);
+                    }
+                }
+            }
+        }
+        return out;
+    }
+
     void each(Intc2 cons){
         for(int x = 0; x < width; x++){
             for(int y = 0; y < height; y++){