add black_white shader

adds a black and white shader to the player animated sprite. toggle with set_black_white(bool)

src/actors/player/Player.gd

@@ -68,7 +68,10 @@ func _ready():
 	$Control/HealthBar.tint_progress = Color.green
 	$MeleeDetector.monitoring = false
 	
+	
 	print("ready")
+	set_black_white(false)
+
 
 func _process(delta):
 	if not is_alive:
@@ -245,7 +248,6 @@ func take_damage(n : int):
 		is_alive = false
 		update_animation()
 
-
 func take_damage_player(n : int):
 	take_damage(n)
 
@@ -281,7 +283,11 @@ func update_animation():
 	
 	$InfoLabel.text = "is_moving: " + str(is_moving) + "\nis_jumping: " + str(is_jumping) + "\nis_attacking: " + str(is_attacking) + "\nvh: " + str(velocity.x) + "\nvv" + str(velocity.y) + "\nhp: " + str(hitpoints)
 	
-
+func set_black_white(boolean: bool):
+	if boolean:
+		$AnimatedSprite.material = load("res://src/actors/player/PlayerShader.tres")
+	else:
+		$AnimatedSprite.material = null
 
 """ SECTION SIGNAL FUNCTIONS """
 

src/actors/player/Player.tscn

-[gd_scene load_steps=55 format=2]
+[gd_scene load_steps=56 format=2]
 
 [ext_resource path="res://src/assets/actors/Player/player_attack_melee.png" type="Texture" id=1]
 [ext_resource path="res://src/actors/player/Player.gd" type="Script" id=2]
@@ -11,6 +11,7 @@
 [ext_resource path="res://src/assets/actors/Player/health-bar-under.png" type="Texture" id=9]
 [ext_resource path="res://src/assets/actors/Player/health-bar-over.png" type="Texture" id=10]
 [ext_resource path="res://src/assets/actors/Player/health_bar_health.png" type="Texture" id=11]
+[ext_resource path="res://src/actors/player/PlayerShader.tres" type="Material" id=12]
 
 [sub_resource type="AtlasTexture" id=1]
 flags = 4
@@ -259,10 +260,11 @@ collision/safe_margin = 0.01
 script = ExtResource( 2 )
 
 [node name="AnimatedSprite" type="AnimatedSprite" parent="."]
+material = ExtResource( 12 )
 position = Vector2( 10, -24 )
 frames = SubResource( 38 )
 animation = "melee"
-frame = 7
+frame = 5
 playing = true
 
 [node name="Camera2D" type="Camera2D" parent="."]

src/actors/player/PlayerShader.tres

+[gd_resource type="ShaderMaterial" load_steps=2 format=2]
+
+[sub_resource type="Shader" id=52]
+code = "shader_type canvas_item;
+render_mode unshaded;
+
+void fragment() {
+	COLOR = texture(TEXTURE, UV);
+	float lumi = (COLOR.r + COLOR.g + COLOR.b) / 3f;
+	COLOR.rgb = vec3(lumi);
+}"
+
+[resource]
+shader = SubResource( 52 )