diff --git a/api/src/main/java/com/bartlomiejpluta/base/api/game/rule/Rule.java b/api/src/main/java/com/bartlomiejpluta/base/api/game/rule/Rule.java
index b123461c..6c20dfb7 100644
--- a/api/src/main/java/com/bartlomiejpluta/base/api/game/rule/Rule.java
+++ b/api/src/main/java/com/bartlomiejpluta/base/api/game/rule/Rule.java
@@ -3,7 +3,7 @@ package com.bartlomiejpluta.base.api.game.rule;
 import com.bartlomiejpluta.base.api.game.entity.Entity;
 
 public interface Rule {
-   boolean test(Entity entity);
+   boolean when(Entity entity);
 
-   void invoke(Entity entity);
+   void then(Entity entity);
 }
diff --git a/engine/src/main/java/com/bartlomiejpluta/base/engine/world/map/layer/object/DefaultObjectLayer.java b/engine/src/main/java/com/bartlomiejpluta/base/engine/world/map/layer/object/DefaultObjectLayer.java
index 3a3f788e..e08ca52d 100644
--- a/engine/src/main/java/com/bartlomiejpluta/base/engine/world/map/layer/object/DefaultObjectLayer.java
+++ b/engine/src/main/java/com/bartlomiejpluta/base/engine/world/map/layer/object/DefaultObjectLayer.java
@@ -105,8 +105,8 @@ public class DefaultObjectLayer implements ObjectLayer {
    public void update(float dt) {
       for (var entity : entities) {
          for (var rule : rules) {
-            if (rule.test(entity)) {
-               rule.invoke(entity);
+            if (rule.when(entity)) {
+               rule.then(entity);
             }
          }