Save unit variables in processors

core/src/mindustry/logic/LAssembler.java

@@ -22,7 +22,7 @@ public class LAssembler{
     public LAssembler(){
         //instruction counter
         putVar("@counter").value = 0;
-        //unix timestamp
+        //timestamp
         putConst("@time", 0);
         //currently controlled unit
         putConst("@unit", null);

core/src/mindustry/logic/LExecutor.java

@@ -208,7 +208,7 @@ public class LExecutor{
             }
 
             //binding to `null` was previously possible, but was too powerful and exploitable
-            if(exec.obj(type) instanceof UnitType type){
+            if(exec.obj(type) instanceof UnitType type && type.logicControllable){
                 Seq<Unit> seq = exec.team.data().unitCache(type);
 
                 if(seq != null && seq.any()){
@@ -222,7 +222,7 @@ public class LExecutor{
                     //no units of this type found
                     exec.setconst(varUnit, null);
                 }
-            }else if(exec.obj(type) instanceof Unit u && u.team == exec.team){
+            }else if(exec.obj(type) instanceof Unit u && u.team == exec.team && u.type.logicControllable){
                 //bind to specific unit object
                 exec.setconst(varUnit, u);
             }else{

core/src/mindustry/logic/LStatements.java

@@ -836,7 +836,7 @@ public class LStatements{
                         i.left();
                         int c = 0;
                         for(UnitType item : Vars.content.units()){
-                            if(!item.unlockedNow() || item.isHidden()) continue;
+                            if(!item.unlockedNow() || item.isHidden() || !item.logicControllable) continue;
                             i.button(new TextureRegionDrawable(item.uiIcon), Styles.cleari, iconSmall, () -> {
                                 type = "@" + item.name;
                                 field.setText(type);