UnitType cleanup

core/src/mindustry/entities/units/UnitController.java

@@ -1,5 +1,12 @@
 package mindustry.entities.units;
 
+import mindustry.gen.*;
+
 //TODO rename
-public class UnitController{
+public abstract class UnitController{
+    protected Unitc unit;
+
+    public void set(Unitc unit){
+        this.unit = unit;
+    }
 }