fixed refmap issues

src/main/java/carpet/script/CarpetExpression.java

@@ -2812,7 +2812,7 @@ public class CarpetExpression
         });
 
         this.expr.addLazyFunction("plop", 4, (c, t, lv) ->{
-            return LazyValue.NULL;/*BlockValue.LocatorResult locator = BlockValue.fromParams((CarpetContext)c, lv, 0);
+            BlockValue.LocatorResult locator = BlockValue.fromParams((CarpetContext)c, lv, 0);
             if (lv.size() <= locator.offset)
                 throw new InternalExpressionException("plop needs extra argument indicating what to plop");
             String what = lv.get(locator.offset).evalValue(c).getString();
@@ -2821,7 +2821,7 @@ public class CarpetExpression
                 return (c_, t_) -> Value.NULL;
             if (what.equalsIgnoreCase("boulder"))  // there might be more of those
                 this.forceChunkUpdate(locator.block.getPos(), ((CarpetContext)c).s.getWorld());
-            return (c_, t_) -> new NumericValue(res);*/
+            return (c_, t_) -> new NumericValue(res);
         });
 
         this.expr.addLazyFunction("schedule", -1, (c, t, lv) -> {