Improved interactions.

- Interactions can now be stopped by both participating Entities.
- Player animation now controlled by AnimationTree.

assets/Characters/Pirate.tscn

@@ -1,11 +1,47 @@
-[gd_scene load_steps=3 format=2]
+[gd_scene load_steps=12 format=2]
 
 [ext_resource path="res://assets/Characters/Pirate.glb" type="PackedScene" id=1]
 [ext_resource path="res://assets/Objects/toolAxe.tscn" type="PackedScene" id=2]
 
+[sub_resource type="AnimationNodeAnimation" id=1]
+animation = "Hit-loop"
+
+[sub_resource type="AnimationNodeAnimation" id=2]
+animation = "Idle-loop"
+
+[sub_resource type="AnimationNodeAnimation" id=3]
+animation = "Interaction-loop"
+
+[sub_resource type="AnimationNodeStateMachineTransition" id=4]
+
+[sub_resource type="AnimationNodeStateMachineTransition" id=5]
+switch_mode = 2
+xfade_time = 0.2
+
+[sub_resource type="AnimationNodeStateMachineTransition" id=6]
+
+[sub_resource type="AnimationNodeStateMachineTransition" id=7]
+switch_mode = 2
+xfade_time = 0.2
+
+[sub_resource type="AnimationNodeStateMachine" id=8]
+states/Hit/node = SubResource( 1 )
+states/Hit/position = Vector2( 415, 45 )
+states/Idle/node = SubResource( 2 )
+states/Idle/position = Vector2( 149, 39 )
+states/Interaction/node = SubResource( 3 )
+states/Interaction/position = Vector2( 176, 157 )
+transitions = [ "Idle", "Hit", SubResource( 4 ), "Hit", "Idle", SubResource( 5 ), "Idle", "Interaction", SubResource( 6 ), "Interaction", "Idle", SubResource( 7 ) ]
+start_node = "Idle"
+
+[sub_resource type="AnimationNodeStateMachinePlayback" id=9]
+
 [node name="Pirate" instance=ExtResource( 1 )]
 transform = Transform( 0.5, 0, 0, 0, 0.5, 0, 0, 0, 0.5, 0, 0, 0 )
 
+[node name="Skeleton" parent="Armature" index="0"]
+bones/4/bound_children = [ NodePath("ToolAttachement") ]
+
 [node name="ToolAttachement" type="BoneAttachment" parent="Armature/Skeleton" index="5"]
 transform = Transform( 1, 8.68458e-08, -1.04308e-07, 1.74623e-07, -1, -1.30385e-07, 1.41561e-07, 1.50874e-07, -1, -0.72, 0.45, 3.28113e-08 )
 visible = false
@@ -15,3 +51,9 @@ bone_name = "HandTip.R"
 transform = Transform( -1.12419e-14, 8.74228e-08, -2, 2, -8.74228e-08, -1.39841e-13, -8.74228e-08, -2, -8.74228e-08, 2.38419e-07, -0.151768, 0.615043 )
 
 [node name="toolAxe" parent="Armature/Skeleton/ToolAttachement/Tool" index="0" instance=ExtResource( 2 )]
+
+[node name="AnimationTree" type="AnimationTree" parent="." index="2"]
+tree_root = SubResource( 8 )
+anim_player = NodePath("../AnimationPlayer")
+active = true
+parameters/playback = SubResource( 9 )

components/InteractionComponent.cs

@@ -0,0 +1,15 @@
+using Godot;
+
+namespace GodotComponentTest.components;
+
+public class InteractionComponent: Component
+{
+    [Signal]
+    delegate void InteractionStart(Entity owningEntity, Entity targetEntity);
+    
+    [Signal]
+    delegate void InteractionEnd(Entity owningEntity, Entity targetEntity);
+
+    public Entity OwningEntity;
+    public Entity TargetEntity;
+}

entities/Chest.cs

@@ -1,6 +1,7 @@
 using Godot;
 using System;
 using System.Linq;
+using GodotComponentTest.components;
 using GodotComponentTest.entities;
 
 public class Chest : Entity, IInteractionInterface
@@ -20,6 +21,13 @@ public class Chest : Entity, IInteractionInterface
     private MeshInstance _mesh;
     private AnimationPlayer _animationPlayer;
 
+    private InteractionComponent _interactionComponent;
+    public InteractionComponent InteractionComponent
+    {
+        get => _interactionComponent;
+        set => _interactionComponent = value;
+    }
+    
     [Signal]
     delegate void EntityClicked(Entity entity);
 
@@ -105,5 +113,10 @@ public class Chest : Entity, IInteractionInterface
             );
             GetParent().AddChild(bar);
         }
+
+        if (_interactionComponent != null)
+        {
+            _interactionComponent.EmitSignal("InteractionEnd");
+        }
     }
 }

entities/Chest.tscn

@@ -65,11 +65,14 @@ tracks/2/loop_wrap = true
 tracks/2/imported = false
 tracks/2/enabled = true
 tracks/2/keys = {
-"times": PoolRealArray( 0.3 ),
-"transitions": PoolRealArray( 1 ),
+"times": PoolRealArray( 0.3, 1 ),
+"transitions": PoolRealArray( 1, 1 ),
 "values": [ {
 "args": [  ],
 "method": "OnChestOpened"
+}, {
+"args": [  ],
+"method": "OnChestOpened"
 } ]
 }
 

entities/IInteractionInterface.cs

@@ -1,7 +1,15 @@
+using GodotComponentTest.components;
+
 namespace GodotComponentTest.entities;
 
 public interface IInteractionInterface
 {
     void OnInteractionStart();
     void OnInteractionEnd();
+
+    InteractionComponent InteractionComponent
+    {
+        get;
+        set;
+    }
 }

entities/Player.cs

@@ -3,6 +3,7 @@ using System;
 using System.Collections.Generic;
 using System.Diagnostics;
 using System.Linq;
+using GodotComponentTest.components;
 using GodotComponentTest.entities;
 
 public class Player : Entity, IInteractionInterface
@@ -30,6 +31,13 @@ public class Player : Entity, IInteractionInterface
     private List<Node> _attractedItemList = new List<Node>();
     private BoneAttachment _toolAttachement;
     private AnimationPlayer _playerAnimationPlayer;
+    private AnimationTree _animationTree;
+    private InteractionComponent _interactionComponent;
+    public InteractionComponent InteractionComponent
+    {
+        get => _interactionComponent;
+        set => _interactionComponent = value;
+    }
 
     // Called when the node enters the scene tree for the first time.
     public override void _Ready()
@@ -61,8 +69,12 @@ public class Player : Entity, IInteractionInterface
             _itemPickupArea.Connect("body_entered", this, nameof(OnItemPickupAreaBodyEntered));
         }
 
-        _playerAnimationPlayer = (AnimationPlayer)GetNode<AnimationPlayer>("Geometry/AnimationPlayer");
+        _playerAnimationPlayer = GetNode<AnimationPlayer>("Geometry/AnimationPlayer");
         Debug.Assert(_playerAnimationPlayer != null);
+        _animationTree = GetNode<AnimationTree>("Geometry/AnimationTree");
+        Debug.Assert(_animationTree != null);
+        AnimationNodeStateMachinePlayback stateMachine = (AnimationNodeStateMachinePlayback)_animationTree.Get("parameters/playback");
+        stateMachine.Start("Idle");
         
         _toolAttachement = (BoneAttachment)FindNode("ToolAttachement");
         if (_toolAttachement == null)
@@ -168,14 +180,25 @@ public class Player : Entity, IInteractionInterface
 
     public void OnInteractionStart()
     {
-        GD.Print("Player Starting Interaction");
-        _playerAnimationPlayer.CurrentAnimation = "Hit-loop";
-        _playerAnimationPlayer.Play();
+        AnimationNodeStateMachinePlayback stateMachine = (AnimationNodeStateMachinePlayback)_animationTree.Get("parameters/playback");
+        Debug.Assert(stateMachine != null);
+        
+        if (_interactionComponent.TargetEntity is Chest)
+        {
+            GD.Print("Player Opening Box");
+            stateMachine.Travel("Interaction");
+        } else if (_interactionComponent.TargetEntity is Tree)
+        {
+            GD.Print("Player Chopping Tree");
+            stateMachine.Travel("Hit");
+        }
     }
 
     public void OnInteractionEnd()
     {   
         GD.Print("Player Stopping Interaction");
-        _playerAnimationPlayer.CurrentAnimation = "Idle-loop";
+        AnimationNodeStateMachinePlayback stateMachine = (AnimationNodeStateMachinePlayback)_animationTree.Get("parameters/playback");
+        Debug.Assert(stateMachine != null);
+        stateMachine.Travel("Idle");
     }
 }

entities/Tree.cs

@@ -1,17 +1,25 @@
 using Godot;
 using System;
 using System.Diagnostics;
+using GodotComponentTest.components;
 using GodotComponentTest.entities;
 
-public class Tree : StaticBody, IInteractionInterface
+public class Tree : Entity, IInteractionInterface
 {
     [Export] public float ChopDuration = 2;
-    public bool IsMouseOver = false;
+    public bool IsMouseOver;
     
     private MeshInstance _geometry;
     private AnimationPlayer _animationPlayer;
     private float _health = 100;
-    private bool _isBeingChopped = false;
+    private bool _isBeingChopped;
+    
+    private InteractionComponent _interactionComponent;
+    public InteractionComponent InteractionComponent
+    {
+        get => _interactionComponent;
+        set => _interactionComponent = value;
+    }
     
     [Signal]
     delegate void EntityClicked(Entity entity);

entities/Tree.tscn

@@ -50,7 +50,7 @@ tracks/0/imported = false
 tracks/0/enabled = true
 tracks/0/keys = PoolRealArray( 0, 1, 0, 0, 0, 0, 0, 0, 1, 1.5, 1, 1.5, 0.5, 1, 0, 0, 0, 0, 0, 0, 1, 1.5, 0.6, 1.5, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1.5, 1, 1.5 )
 
-[node name="Tree" type="StaticBody"]
+[node name="Tree" type="KinematicBody"]
 script = ExtResource( 3 )
 
 [node name="Geometry" type="MeshInstance" parent="."]

systems/InteractionSystem.cs

@@ -2,6 +2,7 @@ using Godot;
 using System;
 using System.Collections.Generic;
 using Godot.Collections;
+using GodotComponentTest.components;
 using GodotComponentTest.entities;
 using Array = System.Array;
 using NodePair = System.Tuple<Godot.Node, Godot.Node>;
@@ -38,6 +39,7 @@ public class InteractionSystem : Node
                 if (interactableB != null)
                 {
                     interactableB.OnInteractionEnd();
+                    interactableB.InteractionComponent = null;
                 }
             }
 
@@ -47,10 +49,9 @@ public class InteractionSystem : Node
                 if (interactableA != null)
                 {
                     interactableA.OnInteractionEnd();
+                    interactableA.InteractionComponent = null;
                 }
             }
-
-
         }
 
         foreach (NodePair pair in invalidInteractionPairs)
@@ -59,21 +60,29 @@ public class InteractionSystem : Node
         }
     }
 
-    public void OnStartInteraction(Node nodeA, Node nodeB)
+    public void OnStartInteraction(Entity owningEntity, Entity targetEntity)
     {
-        IInteractionInterface interactableA = nodeA as IInteractionInterface;
-        if (interactableA != null)
-        {
-            interactableA.OnInteractionStart();
-        }
+        InteractionComponent interactionComponent = new InteractionComponent();
+        interactionComponent.OwningEntity = owningEntity;
+        interactionComponent.TargetEntity = targetEntity;
         
-        IInteractionInterface interactableB = nodeB as IInteractionInterface;
-        if (interactableB != null)
-        {
-            interactableB.OnInteractionStart();
-        }
+        ConnectInteractionSignals(owningEntity, interactionComponent);
+        ConnectInteractionSignals(targetEntity, interactionComponent);
         
-        NodePair pair = new NodePair(nodeA, nodeB);
-        _interactionPairs.Add(new NodePair(nodeA, nodeB));
+        interactionComponent.EmitSignal("InteractionStart");
+
+        NodePair pair = new NodePair(owningEntity, targetEntity);
+        _interactionPairs.Add(new NodePair(owningEntity, targetEntity));
+    }
+
+    private static void ConnectInteractionSignals(Entity entity, InteractionComponent interactionComponent)
+    {
+        IInteractionInterface interactable = entity as IInteractionInterface;
+        if (interactable != null)
+        {
+            interactable.InteractionComponent = interactionComponent;
+            interactionComponent.Connect("InteractionStart", entity, nameof(interactable.OnInteractionStart));
+            interactionComponent.Connect("InteractionEnd", entity, nameof(interactable.OnInteractionEnd));
+        }
     }
 }