Entity components based on code generation - experiment

core/src/mindustry/entities/def/EntityDefs.java

@@ -0,0 +1,48 @@
+package mindustry.entities.def;
+
+import arc.math.geom.*;
+import mindustry.annotations.Annotations.*;
+import mindustry.entities.units.*;
+import mindustry.net.*;
+
+public class EntityDefs{
+
+    @EntityDef({Health.class, Vel.class, Status.class, Connection.class})
+    class PlayerDef{}
+
+    class Health{
+        float health, maxHealth;
+        boolean dead;
+
+        float healthf(){
+            return health / maxHealth;
+        }
+    }
+
+    class Pos{
+        float x, y;
+    }
+
+    class Vel extends Pos{
+        Vec2 vel = new Vec2();
+
+        void update(){
+            x += vel.x;
+            y += vel.y;
+            vel.scl(0.9f);
+        }
+    }
+
+    class Status{
+        Statuses statuses = new Statuses();
+
+        void update(){
+            statuses.update(null);
+        }
+    }
+
+    class Connection{
+        NetConnection connection;
+    }
+
+}