Godot Version
4.3 stable
So i have a Sawblade obstacle for 2d platformer
which has 2 rescins for different chapters of my game. I made it so i can use one scene and just change the “style” of each Sawblade in inspector. The scene has one AnimatedSprite2D node, but uses 3 SpriteFrames resources for each style, handled by Array. The problem is i don’t want to create separate CanvasTextures for each sprite since only difference is color of sawblade, so i made only one normal map for them and decided to create another array containing normal maps and apply them by code. When i do that, animation stops playing, but if i leave normal map array blank, it plays normally (obviously without normal map lighting).
extends Area2D
@export var style_frames: Array[SpriteFrames] = []
@export var style_normal_maps: Array[Texture2D] = []
@export var style_index: int = 0
@onready var animated_sprite_2d: AnimatedSprite2D = $AnimatedSprite2D
func _ready() -> void:
if animated_sprite_2d == null:
animated_sprite_2d = get_node_or_null("AnimatedSprite2D")
await get_tree().process_frame
_apply_style()
func _process(_delta: float) -> void:
print(animated_sprite_2d.frame, " | playing: ", animated_sprite_2d.is_playing())
func set_style(index: int) -> void:
style_index = index
_apply_style()
func _apply_style() -> void:
if animated_sprite_2d == null:
animated_sprite_2d = get_node_or_null("AnimatedSprite2D")
if animated_sprite_2d == null:
return
if style_frames.size() == 0 or style_index < 0 or style_index >= style_frames.size():
return
var source_frames := style_frames[style_index]
var normal_map: Texture2D = null
if style_index < style_normal_maps.size():
normal_map = style_normal_maps[style_index]
if normal_map == null:
animated_sprite_2d.sprite_frames = source_frames
else:
var wrapped: SpriteFrames = source_frames.duplicate(true)
wrapped.set_block_signals(true)
for anim in source_frames.get_animation_names():
for i in range(source_frames.get_frame_count(anim)):
var raw_tex := source_frames.get_frame_texture(anim, i)
# Unwrap existing CanvasTexture to prevent nesting
var diffuse_tex: Texture2D
if raw_tex is CanvasTexture:
diffuse_tex = (raw_tex as CanvasTexture).diffuse_texture
else:
diffuse_tex = raw_tex
var diffuse_atlas := diffuse_tex as AtlasTexture
var ct := CanvasTexture.new()
ct.diffuse_texture = diffuse_tex
if diffuse_atlas != null:
var normal_atlas := AtlasTexture.new()
normal_atlas.atlas = normal_map
normal_atlas.region = diffuse_atlas.region
ct.normal_texture = normal_atlas
# Replace the frame in-place on the duplicate
wrapped.set_frame(anim, i, ct, source_frames.get_frame_duration(anim, i))
animated_sprite_2d.sprite_frames = wrapped
func _on_body_entered(body: Node2D) -> void:
if body.is_in_group("Player"):
body.die()
I know i can just go another way to create animations, but i’ve not given up just now and want to know what causing the issue