Add RecoilComponent and SquashAndStretchComponent; implement recoil and animation effects on shooting

objects/entities/cannon.tscn

@@ -1,8 +1,10 @@
-[gd_scene load_steps=5 format=3 uid="uid://dstko446qydsc"]
+[gd_scene load_steps=7 format=3 uid="uid://dstko446qydsc"]
 
 [ext_resource type="Texture2D" uid="uid://djifxc5x0dyrw" path="res://sprites/ppc_tileset.png" id="1_6gptm"]
 [ext_resource type="Script" uid="uid://bnaxy8cw3wrko" path="res://scripts/components/PeriodicShootingComponent.cs" id="2_q37h7"]
 [ext_resource type="PackedScene" uid="uid://bhc7y4xugu4q7" path="res://objects/entities/bullet.tscn" id="3_bhwy3"]
+[ext_resource type="Script" uid="uid://b3j23e7b7x8ro" path="res://scripts/components/RecoilComponent.cs" id="4_bhwy3"]
+[ext_resource type="Script" uid="uid://c707c53k7c5ae" path="res://scripts/components/SquashAndStretchComponent.cs" id="5_ww0hb"]
 
 [sub_resource type="RectangleShape2D" id="RectangleShape2D_j5sus"]
 size = Vector2(16, 16)
@@ -23,7 +25,7 @@ shape = SubResource("RectangleShape2D_j5sus")
 [node name="PeriodicShootingComponent" type="Node" parent="." node_paths=PackedStringArray("BulletSpawnPointRight")]
 script = ExtResource("2_q37h7")
 BulletScene = ExtResource("3_bhwy3")
-ShootInterval = 3.5
+ShootInterval = 0.2
 ShootDirection = Vector2(0, -1)
 BulletSpawnPointRight = NodePath("../Bullet spawn")
 ShootingIntervalVariation = 0.3
@@ -31,3 +33,15 @@ metadata/_custom_type_script = "uid://bnaxy8cw3wrko"
 
 [node name="Bullet spawn" type="Marker2D" parent="."]
 position = Vector2(0, -16)
+
+[node name="RecoilComponent" type="Node" parent="." node_paths=PackedStringArray("RecoilTarget")]
+script = ExtResource("4_bhwy3")
+RecoilTarget = NodePath("../Sprite2D")
+RecoilDistance = 4.0
+RecoilDuration = 0.12
+metadata/_custom_type_script = "uid://b3j23e7b7x8ro"
+
+[node name="SquashAndStretchComponent" type="Node" parent="." node_paths=PackedStringArray("TargetNode")]
+script = ExtResource("5_ww0hb")
+TargetNode = NodePath("../Sprite2D")
+metadata/_custom_type_script = "uid://c707c53k7c5ae"

resources/tilesets/village/terain.tres

@@ -1056,7 +1056,7 @@ texture = ExtResource("2_43n76")
 
 [resource]
 physics_layer_0/collision_layer = 1
-physics_layer_0/collision_mask = 29
+physics_layer_0/collision_mask = 93
 terrain_set_0/mode = 0
 terrain_set_0/terrain_0/name = "Village"
 terrain_set_0/terrain_0/color = Color(1, 1, 1, 1)

scripts/components/PeriodicShootingComponent.cs

@@ -12,6 +12,8 @@ public partial class PeriodicShootingComponent : Node
     [Export] public Node2D BulletSpawnPointRight { get; set; }
     [Export] public Node2D BulletSpawnPointLeft { get; set; }
     [Export] public float ShootingIntervalVariation { get; set; } = 0.0f;
+    
+    [Signal] public delegate void ShotFiredEventHandler(Vector2 shootDirection);
 
     private Timer _timer;
     private RandomNumberGenerator _rng;
@@ -84,5 +86,6 @@ public partial class PeriodicShootingComponent : Node
         
         bulletInstance.GlobalPosition = spawnPosition;
         GetTree().CurrentScene.AddChild(bulletInstance);
+        EmitSignalShotFired(ShootDirection);
     }
 }

scripts/components/RecoilComponent.cs

@@ -0,0 +1,51 @@
+using Godot;
+
+namespace Mr.BrickAdventures.scripts.components;
+
+[GlobalClass]
+public partial class RecoilComponent : Node
+{
+    [Export] public Node2D RecoilTarget { get; set; }
+    [Export] public float RecoilDistance { get; set; } = 8f;
+    [Export] public float RecoilDuration { get; set; } = 0.1f;
+    
+    private Vector2 _originalPosition;
+    private Tween _recoilTween;
+    private PeriodicShootingComponent _shootingComponent;
+
+    public override void _Ready()
+    {
+        RecoilTarget ??= Owner as Node2D;
+        if (RecoilTarget == null)
+        {
+            GD.PushError("RecoilComponent: RecoilTarget is null");
+            SetProcess(false);
+            return;
+        }
+        
+        _originalPosition = RecoilTarget.Position;
+        
+        _shootingComponent = Owner.GetNodeOrNull<PeriodicShootingComponent>("PeriodicShootingComponent");
+        if (_shootingComponent != null)
+        {
+            _shootingComponent.ShotFired += TriggerRecoil;
+        }
+    }
+
+    public void TriggerRecoil(Vector2 shootDirection)
+    {
+        if (RecoilTarget == null) return;
+        
+        _recoilTween?.Kill();
+        
+        var recoilDirection = -shootDirection.Normalized();
+        var recoilPosition = _originalPosition + recoilDirection * RecoilDistance;
+
+        _recoilTween = CreateTween();
+        _recoilTween.SetEase(Tween.EaseType.Out);
+        _recoilTween.SetTrans(Tween.TransitionType.Cubic);
+        
+        _recoilTween.TweenProperty(RecoilTarget, "position", recoilPosition, RecoilDuration / 2);
+        _recoilTween.TweenProperty(RecoilTarget, "position", _originalPosition, RecoilDuration / 2).SetDelay(RecoilDuration / 2);
+    }
+}

scripts/components/RecoilComponent.cs.uid

@@ -0,0 +1 @@
+uid://b3j23e7b7x8ro

scripts/components/SquashAndStretchComponent.cs

@@ -0,0 +1,71 @@
+using Godot;
+
+namespace Mr.BrickAdventures.scripts.components;
+
+[GlobalClass]
+public partial class SquashAndStretchComponent : Node
+{
+    [Export] public Node2D TargetNode { get; set; }
+    [Export(PropertyHint.Range, "0.1, 1.0, 0.01")] public float AnimationDuration { get; set; } = 0.25f;
+
+    [ExportGroup("Effect Strength")]
+    [Export(PropertyHint.Range, "1.0, 2.0, 0.05")] public float SquashFactor { get; set; } = 1.2f;
+    [Export(PropertyHint.Range, "0.5, 1.0, 0.05")] public float StretchFactor { get; set; } = 0.8f;
+    
+    private Vector2 _originalScale;
+    private Tween _tween;
+    
+    public override void _Ready()
+    {
+        TargetNode ??= Owner as Node2D;
+
+        if (TargetNode == null)
+        {
+            GD.PrintErr("SquashAndStretchComponent: No valid TargetNode found. Disabling component.");
+            SetProcess(false);
+            return;
+        }
+
+        _originalScale = TargetNode.Scale;
+
+        var shootingComponent = Owner.GetNodeOrNull<PeriodicShootingComponent>("PeriodicShootingComponent");
+        if (shootingComponent != null)
+        {
+            shootingComponent.ShotFired += OnShotFired;
+        }
+        else
+        {
+            GD.PrintErr("SquashAndStretchComponent requires a PeriodicShootingComponent on the same owner to function.");
+        }
+    }
+
+    private void OnShotFired(Vector2 shootDirection)
+    {
+        if (TargetNode == null) return;
+
+        _tween?.Kill();
+
+        Vector2 squashScale;
+        Vector2 stretchScale;
+        
+        if (Mathf.Abs(shootDirection.X) > Mathf.Abs(shootDirection.Y))
+        {
+            squashScale = new Vector2(StretchFactor, SquashFactor) * _originalScale;
+            stretchScale = new Vector2(SquashFactor, StretchFactor) * _originalScale;
+        }
+        else
+        {
+            squashScale = new Vector2(SquashFactor, StretchFactor) * _originalScale;
+            stretchScale = new Vector2(StretchFactor, SquashFactor) * _originalScale;
+        }
+        
+        _tween = CreateTween();
+        _tween.SetTrans(Tween.TransitionType.Elastic).SetEase(Tween.EaseType.Out);
+        
+        var partDuration = AnimationDuration / 3.0f;
+
+        _tween.TweenProperty(TargetNode, "scale", squashScale, partDuration);
+        _tween.TweenProperty(TargetNode, "scale", stretchScale, partDuration);
+        _tween.TweenProperty(TargetNode, "scale", _originalScale, partDuration);
+    }
+}

scripts/components/SquashAndStretchComponent.cs.uid

@@ -0,0 +1 @@
+uid://c707c53k7c5ae