Better leg unit death explosion

core/src/mindustry/entities/LegDestroyData.java

@@ -0,0 +1,15 @@
+package mindustry.entities;
+
+import arc.graphics.g2d.*;
+import arc.math.geom.*;
+
+public class LegDestroyData{
+    public Vec2 a, b;
+    public TextureRegion region;
+
+    public LegDestroyData(Vec2 a, Vec2 b, TextureRegion region){
+        this.a = a;
+        this.b = b;
+        this.region = region;
+    }
+}