bullet texture animations

systems/bullets/bullet.gd

@@ -13,12 +13,19 @@ signal recycled()
 
 
 ## Texture to draw for the bullet.
-@export var texture: Texture2D = null:
+@export var base_graphic: AnimationStrip = null:
 	set(value):
-		texture = value
+		base_graphic = value
 		queue_redraw()
 		_update_visibility_notifier()
 
+@export var color: Color
+
+@export var overlay_graphic: AnimationStrip = null:
+	set(value):
+		overlay_graphic = value
+		queue_redraw()
+
 ## Size of the bullet's collision box.
 @export var hitbox_size: Vector2i = Vector2i.ZERO:
 	set(value):
@@ -60,10 +67,12 @@ static func create(
 		#bullet = Bullet.new()
 	var bullet := Bullet.new()
 	
-	if not preset.textures.is_empty():
-		bullet.texture = preset.textures.pick_random()
+	if not preset.base_graphics.is_empty():
+		var index = randi() % preset.base_graphics.size()
+		bullet.base_graphic = preset.base_graphics[index]
+		bullet.overlay_graphic = preset.overlay_graphics[index]
 	if not preset.colors.is_empty():
-		bullet.modulate = preset.colors.pick_random()
+		bullet.color = preset.colors.pick_random()
 	bullet.hitbox_size = preset.hitbox_size
 	bullet.face_direction = preset.face_direction
 	
@@ -103,15 +112,18 @@ func _enter_tree() -> void:
 	_update_visibility_notifier()
 
 
-func _physics_process(delta: float) -> void:
+func _physics_process(_delta: float) -> void:
 	if not Engine.is_editor_hint():
+		queue_redraw()
 		if face_direction:
 			rotation = direction.angle()
 
 
 func _draw() -> void:
-	if texture:
-		draw_texture(texture, -texture.get_size() * 0.5)
+	if base_graphic:
+		base_graphic.draw(self, time_elapsed, color)
+	if overlay_graphic:
+		overlay_graphic.draw(self, time_elapsed, Color.WHITE)
 
 
 func _get_configuration_warnings() -> PackedStringArray:
@@ -121,14 +133,14 @@ func _get_configuration_warnings() -> PackedStringArray:
 # sets the canvas item up to notify when it leaves the screen
 # this essentially mimics `VisibleOnScreenNotifier` without an additional node
 func _update_visibility_notifier() -> void:
-	if not texture or not is_inside_tree() or Engine.is_editor_hint():
+	if not base_graphic or not base_graphic.texture or not is_inside_tree() or Engine.is_editor_hint():
 		return
 	
 	# the visibility rect is set to twice the size of the texture to add a little margin
 	# (func(): pass) is the cleanest way i could think of to have a callback that does nothing
 	RenderingServer.canvas_item_set_visibility_notifier(
 		get_canvas_item(), true,
-		Rect2(-texture.get_size(), texture.get_size() * 2.0),
+		Rect2(-base_graphic.texture.get_size(), base_graphic.texture.get_size() * 2.0),
 		(func(): pass), _on_screen_exited
 	)
 

systems/bullets/bullet_behaviors/bullet_behavior.gd

@@ -33,10 +33,10 @@ func deinit_bullet(bullet: Bullet) -> void:
 
 ## Processes one tick of a [Bullet]'s movement.
 func process_bullet(bullet: Bullet, delta: float) -> void:
-	var last_time = bullet.time_elapsed
-	bullet.time_elapsed += delta
-	if last_time < action_delay and bullet.time_elapsed >= action_delay and action_on_delay:
-		action_on_delay.perform(bullet)
+	#var last_time = bullet.time_elapsed
+	#bullet.time_elapsed += delta
+	#if last_time < action_delay and bullet.time_elapsed >= action_delay and action_on_delay:
+		#action_on_delay.perform(bullet)
 	if action_on_interval:
 		_bullet_interval_cooldowns[bullet] -= delta
 		if _bullet_interval_cooldowns[bullet] <= 0.0:

systems/bullets/bullet_preset.gd

@@ -1,10 +1,22 @@
+@tool
 class_name BulletPreset
 extends Resource
 
 
 @export_group("Bullets")
 @export var behavior: BulletBehavior = null
-@export var textures: Array[Texture2D] = []
+@export var base_graphics: Array[AnimationStrip] = []:
+	set(value):
+		base_graphics = value
+		if base_graphics.size() != overlay_graphics.size():
+			overlay_graphics.resize(base_graphics.size())
+			notify_property_list_changed()
+@export var overlay_graphics: Array[AnimationStrip] = []:
+	set(value):
+		overlay_graphics = value
+		if base_graphics.size() != overlay_graphics.size():
+			overlay_graphics.resize(base_graphics.size())
+			notify_property_list_changed()
 @export var colors: Array[Color] = [Color.WHITE]
 @export var hitbox_size: Vector2i = Vector2i.ZERO
 @export var face_direction: bool = false

systems/bullets/bullet_set.gd

@@ -22,6 +22,7 @@ func _physics_process(delta: float) -> void:
 	
 	for bullet in get_children():
 		if bullet is Bullet:
+			bullet.time_elapsed += delta
 			preset.behavior.process_bullet(bullet, delta)
 
 

systems/visuals/animation_strip.gd

@@ -0,0 +1,19 @@
+class_name AnimationStrip
+extends Resource
+
+
+@export var texture: Texture
+@export var frames: int = 1
+@export var fps: float = 1.0
+
+
+func draw(canvas_item: CanvasItem, time: float, modulate: Color = Color.WHITE) -> void:
+	var frame_size = Vector2((texture.get_width() / frames), float(texture.get_height()))
+	var current_frame = fmod(floorf(time * fps), frames)
+	print(time * fps)
+	canvas_item.draw_texture_rect_region(
+		texture,
+		Rect2(-frame_size * 0.5, frame_size),
+		Rect2(Vector2(current_frame * frame_size.x, 0.0), frame_size),
+		modulate
+	)

systems/visuals/animation_strip.gd.uid

@@ -0,0 +1 @@
+uid://0ognvvq2ncd7