initial commit: canny cat basic movement, bouncing, some gridmap tiles for levels

addons/godot_state_charts/csharp/Transition.cs

@@ -0,0 +1,53 @@
+using System;
+
+namespace GodotStateCharts
+{
+    using Godot;
+
+    /// <summary>
+    /// A transition between two states. 
+    /// </summary>
+    public class Transition : NodeWrapper {
+        
+        /// <summary>
+        /// Called when the transition is taken.
+        /// </summary>
+        public event Action Taken {
+            add => Wrapped.Connect(SignalName.Taken, Callable.From(value));
+            remove => Wrapped.Disconnect(SignalName.Taken, Callable.From(value));
+        }
+        
+        private Transition(Node transition) : base(transition) {}
+        
+        public static Transition Of(Node transition) {
+            if (transition.GetScript().As<Script>() is not GDScript gdScript
+                || !gdScript.ResourcePath.EndsWith("transition.gd"))
+            {
+                throw new ArgumentException("Given node is not a transition.");
+            }
+            return new Transition(transition);
+        }
+        
+        /// <summary>
+        /// Takes the transition. The transition will be taken immediately by 
+        /// default, even if it has a delay. If you want to wait for the delay
+        /// to pass, you can set the immediately parameter to false.
+        /// </summary>
+        public void Take(bool immediately = true) {
+            Call(MethodName.Take, immediately);
+        }
+        
+        
+        public class SignalName : Godot.Node.SignalName
+        {
+            /// <see cref="Transition.Taken"/>
+            public static readonly StringName Taken = "taken";
+        }
+
+        public class MethodName : Godot.Node.MethodName
+        {
+            /// <see cref="Transition.Take"/>
+            public static readonly StringName Take = "take";
+        }
+    }
+}