Add EffectBlockerExtensions

Content.Shared/GameObjects/EntitySystems/EffectBlocker/EffectBlockerSystem.cs

@@ -0,0 +1,39 @@
+using Content.Shared.GameObjects.EntitySystems.ActionBlocker;
+using JetBrains.Annotations;
+using Robust.Shared.GameObjects.Systems;
+using Robust.Shared.Interfaces.GameObjects;
+
+namespace Content.Shared.GameObjects.EntitySystems.EffectBlocker
+{
+    /// <summary>
+    /// Utility methods to check if an effect is allowed to affect a specific entity.
+    /// For actions see <see cref="ActionBlockerSystem"/>
+    /// </summary>
+    [UsedImplicitly]
+    public class EffectBlockerSystem : EntitySystem
+    {
+        public static bool CanFall(IEntity entity)
+        {
+            var canFall = true;
+
+            foreach (var blocker in entity.GetAllComponents<IEffectBlocker>())
+            {
+                canFall &= blocker.CanFall(); // Sets var to false if false
+            }
+
+            return canFall;
+        }
+
+        public static bool CanSlip(IEntity entity)
+        {
+            var canSlip = true;
+
+            foreach (var blocker in entity.GetAllComponents<IEffectBlocker>())
+            {
+                canSlip &= blocker.CanSlip(); // Sets var to false if false
+            }
+
+            return canSlip;
+        }
+    }
+}