Added hit indicator

game/entities/player/player.gd

@@ -10,6 +10,8 @@ const MAX_HEALTH = 100.0
 const CAMERA_OFFSET_FACTOR = 0.4
 const CAMERA_OFFSET_TIME = 1.0
 
+const SHADER_DAMAGE_INDICATOR = "shader_parameter/intensity"
+
 
 @export_group("Movement", "move")
 @export_range(0.0, 1000.0) var move_max_speed_normal := 350
@@ -35,6 +37,7 @@ const CAMERA_OFFSET_TIME = 1.0
 
 var _slow_down_tween: Tween
 var _camera_offset_tween: Tween
+var _damage_indicator_tween: Tween
 
 var _last_wall_normal: = 0.0
 
@@ -155,6 +158,14 @@ func _input(event: InputEvent) -> void:
 
 
 func deal_damage(value: float) -> void:
+	if _damage_indicator_tween and _damage_indicator_tween.is_running():
+		_damage_indicator_tween.kill()
+	_damage_indicator_tween = create_tween()
+	
+	_damage_indicator_tween.tween_property(player_sprite.material, SHADER_DAMAGE_INDICATOR, 0, 0.0)
+	_damage_indicator_tween.tween_property(player_sprite.material, SHADER_DAMAGE_INDICATOR, 1, 0.1)
+	_damage_indicator_tween.tween_property(player_sprite.material, SHADER_DAMAGE_INDICATOR, 0, 0.1)
+	
 	_current_health -= value
 	health_changed.emit(_current_health)
 	if _current_health < 0.0 or is_zero_approx(_current_health):

game/entities/player/player.tscn

@@ -2,12 +2,18 @@
 
 [ext_resource type="Script" uid="uid://bm48h30pkhdkv" path="res://game/entities/player/player.gd" id="1_1a4jd"]
 [ext_resource type="Texture2D" uid="uid://vcrtyu5ifvsp" path="res://images/entities/player.png" id="2_cjfdk"]
+[ext_resource type="Shader" uid="uid://bywlejhmgj55q" path="res://game/shaders/hit_indicator.gdshader" id="2_kn1iv"]
 [ext_resource type="PackedScene" uid="uid://blxgfix54dxq3" path="res://game/state_machine/state_machine.tscn" id="2_x4rrl"]
 [ext_resource type="PackedScene" uid="uid://btu3hxif2xpvu" path="res://game/entities/player/states/idle_state.tscn" id="3_cjfdk"]
 [ext_resource type="PackedScene" uid="uid://35g5buv0k1s6" path="res://game/entities/player/states/running_state.tscn" id="5_oic1i"]
 [ext_resource type="PackedScene" uid="uid://bboaskqiwnbsb" path="res://game/entities/player/states/jump_state.tscn" id="6_v0nmi"]
 [ext_resource type="PackedScene" uid="uid://ba5sknbijujl2" path="res://game/entities/player/states/wall_state.tscn" id="7_dhej3"]
 
+[sub_resource type="ShaderMaterial" id="ShaderMaterial_fa7iy"]
+shader = ExtResource("2_kn1iv")
+shader_parameter/damage_color = Color(0.8235294, 0.8235294, 0.83137256, 1)
+shader_parameter/intensity = 0.0
+
 [sub_resource type="AtlasTexture" id="AtlasTexture_cjfdk"]
 atlas = ExtResource("2_cjfdk")
 region = Rect2(0, 32, 32, 32)
@@ -549,6 +555,7 @@ collision_layer = 2
 script = ExtResource("1_1a4jd")
 
 [node name="PlayerSprite" type="AnimatedSprite2D" parent="." unique_id=2025942250]
+material = SubResource("ShaderMaterial_fa7iy")
 sprite_frames = SubResource("SpriteFrames_bhunq")
 animation = &"idle"