visual invulnerability

addons/top_down/scenes/actors/player.tscn

@@ -1,4 +1,4 @@
-[gd_scene load_steps=51 format=3 uid="uid://bmp0g88dtijqw"]
+[gd_scene load_steps=55 format=3 uid="uid://bmp0g88dtijqw"]
 
 [ext_resource type="PackedScene" uid="uid://botai66n8rwt3" path="res://addons/top_down/scenes/actors/actor.tscn" id="1_mvls6"]
 [ext_resource type="Script" path="res://addons/great_games_library/nodes/ResourceNode/ResourceNodeItem.gd" id="2_20qkb"]
@@ -31,6 +31,7 @@
 [ext_resource type="Script" path="res://addons/top_down/scripts/actor/Player/SafeTileTracker.gd" id="28_ww0nn"]
 [ext_resource type="Resource" uid="uid://ct82cq803r2si" path="res://addons/top_down/resources/RoomResources/obstacle_reference.tres" id="29_4dv8f"]
 [ext_resource type="Script" path="res://addons/top_down/scripts/actor/Player/HoleRecovery.gd" id="30_n8poo"]
+[ext_resource type="Script" path="res://addons/top_down/scripts/actor/VisualInvulnerability.gd" id="32_82fau"]
 
 [sub_resource type="Resource" id="Resource_u7p0r"]
 resource_name = "movement  properties"
@@ -222,6 +223,43 @@ value = Array[String]([])
 version = 0
 not_saved = false
 
+[sub_resource type="Animation" id="Animation_67stq"]
+resource_name = "invulnerable"
+length = 0.2
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("../Body/Stretch/Sprite2D:modulate")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0, 0.2),
+"transitions": PackedFloat32Array(2, 1),
+"update": 0,
+"values": [Color(0.99, 0.99, 0.99, 1), Color(0.99, 0.99, 0.99, 0.690196)]
+}
+
+[sub_resource type="Animation" id="Animation_3p56v"]
+length = 0.001
+tracks/0/type = "value"
+tracks/0/imported = false
+tracks/0/enabled = true
+tracks/0/path = NodePath("../Body/Stretch/Sprite2D:modulate")
+tracks/0/interp = 1
+tracks/0/loop_wrap = true
+tracks/0/keys = {
+"times": PackedFloat32Array(0),
+"transitions": PackedFloat32Array(1),
+"update": 0,
+"values": [Color(0.99, 0.99, 0.99, 1)]
+}
+
+[sub_resource type="AnimationLibrary" id="AnimationLibrary_f0s3r"]
+_data = {
+"RESET": SubResource("Animation_3p56v"),
+"invulnerable": SubResource("Animation_67stq")
+}
+
 [node name="Player" instance=ExtResource("1_mvls6")]
 disable_mode = 2
 collision_layer = 2
@@ -234,6 +272,7 @@ list = Array[ExtResource("2_20qkb")]([SubResource("Resource_y1d7o"), SubResource
 collision_layer = 2
 
 [node name="Sprite2D" parent="Body/Stretch" index="0"]
+modulate = Color(0.99, 0.99, 0.99, 1)
 material = SubResource("ShaderMaterial_gfelk")
 
 [node name="CharacterAnimator" parent="Body/Stretch/Sprite2D" index="0"]
@@ -311,3 +350,15 @@ script = ExtResource("30_n8poo")
 safe_tile_tracker = NodePath("../SafeTileTracker")
 resource_node = NodePath("../ResourceNode")
 hole_trigger = NodePath("../HoleTrigger")
+
+[node name="VisualInvulnerability" type="Node" parent="." index="22" node_paths=PackedStringArray("resource_node", "animation_player")]
+script = ExtResource("32_82fau")
+resource_node = NodePath("../ResourceNode")
+animation_player = NodePath("AnimationPlayer")
+animation_invulnerable = &"invulnerable"
+animation_normal = &"RESET"
+
+[node name="AnimationPlayer" type="AnimationPlayer" parent="VisualInvulnerability" index="0"]
+libraries = {
+"": SubResource("AnimationLibrary_f0s3r")
+}

addons/top_down/scripts/actor/VisualInvulnerability.gd

@@ -0,0 +1,19 @@
+class_name VisualInvulnerability
+extends Node
+
+@export var resource_node:ResourceNode
+@export var animation_player:AnimationPlayer
+@export var animation_invulnerable:StringName
+@export var animation_normal:StringName
+
+func _ready()->void:
+	var _receive_damage_bool:BoolResource = resource_node.get_resource("receive_damage")
+	assert(_receive_damage_bool != null)
+	_receive_damage_bool.set_false.connect(set_invulnerability_animation.bind(true))
+	_receive_damage_bool.set_true.connect(set_invulnerability_animation.bind(false))
+
+func set_invulnerability_animation(value:bool)->void:
+	if value:
+		animation_player.play(animation_invulnerable)
+	else:
+		animation_player.play(animation_normal)

addons/top_down/scripts/damage/DamageCooldown.gd

@@ -21,9 +21,9 @@ func start_cooldown()->void:
 		return
 	receive_damage_bool.set_value(false)
 	var _tween:Tween = create_tween()
-	_tween.tween_callback(receive_damage_bool.set_value.bind(true)).set_delay(cooldown_time)
-	_tween.tween_callback(on_cooldown_finish)
+	_tween.tween_callback(on_cooldown_finish).set_delay(cooldown_time)
 
 ## Called from tween
 func on_cooldown_finish()->void:
+	receive_damage_bool.set_value(true)
 	cooldown_finished.emit()

addons/top_down/scripts/shaders/color_flash.gdshader

@@ -3,6 +3,14 @@ shader_type canvas_item;
 uniform vec3 overlay:source_color = vec3(1.0);
 uniform float blend:hint_range(0.0, 1.0);
 
+// Modulate color
+varying vec4 tint;
+
+void vertex(){
+	tint = COLOR;
+}
+
 void fragment(){
 	COLOR.rgb = mix(COLOR.rgb, overlay, blend);
+	COLOR = COLOR * tint;
 }