target tracers

Characters/Player.cs

@@ -11,6 +11,8 @@ public sealed partial class Player : Character
 {
     private string _spriteAnim;
 
+    private TargetTracer _targetTracer;
+
     public Vector2 DesiredTarget { get; set; }
 
     [Export]
@@ -28,6 +30,8 @@ public sealed partial class Player : Character
     {
         InteractionRay = GetNode<InteractionRay>("Direction2D/InteractionRay");
 
+        _targetTracer = GetNode<TargetTracer>("%TargetTracer");
+
         base._Ready();
 
         Inventory.UsedItem += (Items.Item item) =>
@@ -48,6 +52,8 @@ public sealed partial class Player : Character
     public override void _Process(double delta)
     {
         base._Process(delta);
+
+        _targetTracer.Rotation = DesiredTarget.Angle();
     }
 
     public override void _Input(InputEvent @event)

Characters/Player.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=66 format=3 uid="uid://b2254pup8k161"]
+[gd_scene load_steps=67 format=3 uid="uid://b2254pup8k161"]
 
 [ext_resource type="Script" path="res://Characters/Player.cs" id="1_flygr"]
 [ext_resource type="Shader" path="res://Shaders/Flash.gdshader" id="2_ngsgt"]
@@ -31,6 +31,7 @@
 [ext_resource type="Texture2D" uid="uid://d1ukste16yq6v" path="res://Assets/Sprites/Particles/player-light.png" id="15_3hahh"]
 [ext_resource type="Script" path="res://Utils/DamageTime.cs" id="15_4xl06"]
 [ext_resource type="PackedScene" uid="uid://g7wfcubs6bdd" path="res://Items/Weapons/Railgun.tscn" id="21_n8w32"]
+[ext_resource type="PackedScene" uid="uid://ce0ph4wk0ylra" path="res://UI/TargetTracer.tscn" id="22_hxi53"]
 [ext_resource type="PackedScene" uid="uid://5y1acxl4j4n7" path="res://Items/Weapons/Pugio.tscn" id="22_mqpn7"]
 [ext_resource type="PackedScene" uid="uid://d1d4vg7we5rjr" path="res://Items/Weapons/Shotgun.tscn" id="22_rmciq"]
 
@@ -452,6 +453,10 @@ stream = ExtResource("13_bxguv")
 [node name="HurtSound" type="AudioStreamPlayer2D" parent="Effects"]
 stream = ExtResource("12_vvem5")
 
+[node name="TargetTracer" parent="Effects" instance=ExtResource("22_hxi53")]
+unique_name_in_owner = true
+position = Vector2(0, -4)
+
 [node name="Camera2D" parent="." instance=ExtResource("4_ym125")]
 zoom = Vector2(4, 4)
 position_smoothing_speed = 8.0
@@ -513,6 +518,9 @@ UseTime = 0.2
 
 [node name="DocLance" parent="Inventory" instance=ExtResource("14_bj0lo")]
 
+[node name="RemoteTransform2D2" type="RemoteTransform2D" parent="Inventory"]
+position = Vector2(0, 4)
+
 [node name="Hurtbox" parent="." node_paths=PackedStringArray("InvincibilityTimer") instance=ExtResource("9_avyu4")]
 visible = false
 InvincibilityTimer = NodePath("Timer")
@@ -527,7 +535,6 @@ shape = SubResource("RectangleShape2D_cjk6b")
 one_shot = true
 
 [node name="AudioListener2D" type="AudioListener2D" parent="."]
-visible = false
 current = true
 
 [node name="Direction2D" type="Marker2D" parent="."]

Shaders/Scrolling.gdshader

@@ -0,0 +1,8 @@
+shader_type canvas_item;
+
+uniform float speed = 16;
+uniform vec2 direction = vec2(1, 0);
+
+void fragment() {
+    COLOR = texture(TEXTURE, UV  - direction * TIME * speed);
+}

UI/TargetTracer.cs

@@ -0,0 +1,20 @@
+using Godot;
+
+public partial class TargetTracer : Node2D
+{
+    private Line2D _line;
+
+    private float Intensity
+    {
+        get => SelfModulate.A;
+        set
+        {
+            SelfModulate = new Color(SelfModulate, value);
+        }
+    }
+
+    public override void _Ready()
+    {
+        _line = GetNode<Line2D>("Line2D");
+    }
+}

UI/TargetTracer.tscn

@@ -0,0 +1,32 @@
+[gd_scene load_steps=6 format=3 uid="uid://ce0ph4wk0ylra"]
+
+[ext_resource type="Shader" path="res://Shaders/Scrolling.gdshader" id="1_1y0lt"]
+[ext_resource type="Script" path="res://UI/TargetTracer.cs" id="1_mtnfa"]
+
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_hcccp"]
+shader = ExtResource("1_1y0lt")
+shader_parameter/speed = 1.0
+shader_parameter/direction = Vector2(1, 0)
+
+[sub_resource type="Gradient" id="Gradient_0wna6"]
+interpolation_mode = 1
+offsets = PackedFloat32Array(0, 0.867133)
+colors = PackedColorArray(1, 1, 1, 1, 1, 1, 1, 0)
+
+[sub_resource type="GradientTexture2D" id="GradientTexture2D_icdwl"]
+gradient = SubResource("Gradient_0wna6")
+width = 2
+height = 1
+
+[node name="TargetTracer" type="Node2D"]
+script = ExtResource("1_mtnfa")
+
+[node name="Line2D" type="Line2D" parent="."]
+z_index = 31
+texture_repeat = 2
+material = SubResource("ShaderMaterial_hcccp")
+scale = Vector2(1, 0.5)
+points = PackedVector2Array(0, 0, 32, 0)
+width = 2.0
+texture = SubResource("GradientTexture2D_icdwl")
+texture_mode = 1