Add project files.

Examples/Nodify.StateMachine/Runner/Conditions/AreEqualCondition.cs

@@ -0,0 +1,23 @@
+using System.Threading.Tasks;
+
+namespace Nodify.StateMachine
+{
+    [BlackboardItem("Are Equal")]
+    public class AreEqualCondition : IBlackboardCondition
+    {
+        [BlackboardProperty(BlackboardKeyType.Object, CanChangeType = true)]
+        public BlackboardProperty Left { get; set; }
+
+        [BlackboardProperty(BlackboardKeyType.Object, CanChangeType = true)]
+        public BlackboardProperty Right { get; set; }
+
+        public Task<bool> Evaluate(Blackboard blackboard)
+        {
+            var left = blackboard.GetObject(Left);
+            var right = blackboard.GetObject(Right);
+
+            // TODO: Equality
+            return Task.FromResult(Equals(left, right));
+        }
+    }
+}

Examples/Nodify.StateMachine/Runner/Conditions/HasKeyCondition.cs

@@ -0,0 +1,23 @@
+using System.Threading.Tasks;
+
+namespace Nodify.StateMachine
+{
+    [BlackboardItem("Has Key")]
+    public class HasKeyCondition : IBlackboardCondition
+    {
+        [BlackboardProperty("Key Name", BlackboardKeyType.String)]
+        public BlackboardProperty Key { get; set; }
+
+        public Task<bool> Evaluate(Blackboard blackboard)
+        {
+            var keyName = blackboard.GetObject<string>(Key);
+
+            if (keyName != null)
+            {
+                return Task.FromResult(blackboard.HasKey(keyName));
+            }
+
+            return Task.FromResult(false);
+        }
+    }
+}

Examples/Nodify.StateMachine/Runner/Conditions/HasValueCondition.cs

@@ -0,0 +1,14 @@
+using System.Threading.Tasks;
+
+namespace Nodify.StateMachine
+{
+    [BlackboardItem("Has Value")]
+    public class HasValueCondition : IBlackboardCondition
+    {
+        [BlackboardProperty(BlackboardKeyType.Object)]
+        public BlackboardKey Key { get; set; }
+
+        public Task<bool> Evaluate(Blackboard blackboard)
+            => Task.FromResult(blackboard.GetObject(Key) != null);
+    }
+}