高级使用指南¶
本文档介绍 Godot-SWF 插件的高级功能和最佳实践，帮助您充分发挥插件的潜力。
解析策略与性能优化¶
1. 正确的解析时机¶
# 推荐：预加载和预解析
func _ready():
# 在场景加载时初始化并解析
var swf = godot_swf_gds_bridge.new()
swf.class_init("res://character.swf")
add_child(swf)
# 连接解析完成信号
swf.parse_finished.connect(_on_parse_finished)
# 开始解析（异步，需要等待几秒）
swf.parse()
func _on_parse_finished():
# 解析完成后才创建动画对象
_idle_anim = swf.create_anim(10)
_attack_anim = swf.create_anim(100)
# 标记为可用
_animations_ready = true
print("SWF 解析完成，动画准备就绪")
func play_attack():
# 确保动画已准备就绪
if _animations_ready:
_attack_anim.play()
else:
push_warning("动画尚未解析完成，无法播放")
2. 进度监控与用户体验¶
func load_with_progress():
var swf = godot_swf_gds_bridge.new()
swf.class_init("res://large_character.swf")
add_child(swf)
# 显示加载进度
_show_loading_screen()
# 在后台解析，同时更新进度
var tween = create_tween()
tween.tween_method(_update_loading_progress, 0.0, 1.0, 0.5) # 模拟进度
swf.parse_finished.connect(_on_parse_complete)
swf.parse()
func _update_loading_progress(progress):
# 可以结合实际的解析进度
var actual_progress = swf.get_parse_progress()
_loading_bar.value = actual_progress * 100
func _on_parse_complete():
_hide_loading_screen()
_initialize_animations()
3. 内存管理与资源释放¶
# 管理多个 SWF 文件
var _loaded_swf_files = {}
func load_swf_asset(swf_path):
if _loaded_swf_files.has(swf_path):
return _loaded_swf_files[swf_path]
var swf = godot_swf_gds_bridge.new()
swf.class_init(swf_path)
add_child(swf)
_loaded_swf_files[swf_path] = swf
return swf
func unload_swf_asset(swf_path):
if _loaded_swf_files.has(swf_path):
var swf = _loaded_swf_files[swf_path]
swf.stop_all()
remove_child(swf)
swf.queue_free()
_loaded_swf_files.erase(swf_path)
高级动画控制¶
1. 动画状态机¶
class_name CharacterAnimationStateMachine
enum State { IDLE, WALKING, ATTACKING, JUMPING }
var _current_state = State.IDLE
var _swf_player
var _animations = {}
func _init(swf_player):
_swf_player = swf_player
# 预定义动画映射
_animations[State.IDLE] = swf_player.create_anim(10)
_animations[State.WALKING] = swf_player.create_anim(20)
_animations[State.ATTACKING] = swf_player.create_anim(30)
_animations[State.JUMPING] = swf_player.create_anim(40)
# 设置循环属性
_animations[State.IDLE].is_looping = true
_animations[State.WALKING].is_looping = true
_animations[State.ATTACKING].is_looping = false
_animations[State.JUMPING].is_looping = false
# 连接攻击动画完成事件
_animations[State.ATTACKING].animation_finished.connect(_on_attack_finished)
func transition_to(new_state):
if _current_state == new_state:
return
# 停止当前状态动画
if _animations.has(_current_state):
_animations[_current_state].stop()
# 播放新状态动画
if _animations.has(new_state):
_animations[new_state].play()
_current_state = new_state
func _on_attack_finished():
# 攻击完成后自动回到待机状态
transition_to(State.IDLE)
2. 动画层级与混合¶
var _animation_layers = {
"base": null, # 基础层 (待机/行走)
"upper": null, # 上半身层 (攻击/使用物品)
"facial": null, # 表情层
"effect": null, # 特效层
}
func setup_layered_animation(swf_player):
# 初始化各层动画
_animation_layers["base"] = swf_player.create_anim(100)
_animation_layers["upper"] = swf_player.create_anim(200)
_animation_layers["facial"] = swf_player.create_anim(300)
_animation_layers["effect"] = swf_player.create_anim(400)
# 设置基础层循环
_animation_layers["base"].is_looping = true
func play_layer_animation(layer_name, shape_id, swf_player):
# 停止该层当前动画
if _animation_layers[layer_name]:
_animation_layers[layer_name].stop()
# 创建并播放新动画
_animation_layers[layer_name] = swf_player.create_anim(shape_id)
_animation_layers[layer_name].play()
# 使用示例：行走时攻击
func walk_and_attack():
play_layer_animation("base", 20, swf_player) # 行走动画
play_layer_animation("upper", 30, swf_player) # 攻击动画
3. 动画事件系统¶
# 扩展动画类以支持自定义事件
class_name AdvancedSWFAnimation extends swf_animation
signal custom_event(event_name, frame_data)
func _init(aid, swf):
super(aid, swf)
# 这里可以添加自定义事件处理逻辑
# 在动画关键帧触发事件
func trigger_custom_event(event_name, frame_data):
custom_event.emit(event_name, frame_data)
# 使用示例
func setup_attack_animation():
var attack_anim = AdvancedSWFAnimation.new(aid, swf)
attack_anim.custom_event.connect(_on_attack_event)
# 假设在特定帧会触发事件
# "hit_frame" - 命中帧
# "effect_frame" - 特效帧
func _on_attack_event(event_name, frame_data):
match event_name:
"hit_frame":
spawn_hit_effect()
apply_damage()
"effect_frame":
spawn_magic_effect()
变换与效果高级应用¶
1. 动态变换与动画同步¶
func setup_dynamic_character():
var character_anim = swf.create_anim(500)
# 使用 Tween 创建复杂的变换序列
var tween = create_tween()
tween.set_parallel(true) # 并行执行多个变换
# 缩放动画
tween.tween_method(_update_scale, Vector2(1, 1), Vector2(1.5, 1.5), 0.5)
# 旋转动画
tween.tween_method(_update_rotation, 0, 360, 1.0)
# 颜色闪烁
tween.tween_method(_update_color, Color.WHITE, Color.RED, 0.25)
tween.tween_method(_update_color, Color.RED, Color.WHITE, 0.25)
character_anim.play()
func _update_scale(scale):
current_anim.transform = Transform2D().scaled(scale)
func _update_rotation(angle):
var current_scale = current_anim.transform.get_scale()
current_anim.transform = Transform2D(deg_to_rad(angle), Vector2.ZERO).scaled(current_scale)
func _update_color(color):
current_anim.color = color
2. 视差与深度效果¶
func create_parallax_effect():
var background_anim = swf.create_anim(600)
var midground_anim = swf.create_anim(601)
var foreground_anim = swf.create_anim(602)
# 设置不同的变换来模拟深度
background_anim.transform = Transform2D().scaled(Vector2(0.8, 0.8))
midground_anim.transform = Transform2D().scaled(Vector2(0.9, 0.9))
foreground_anim.transform = Transform2D().scaled(Vector2(1.0, 1.0))
# 播放所有层
background_anim.play()
midground_anim.play()
foreground_anim.play()
最佳实践与架构模式¶
1. 资源管理与加载策略¶
# SWF 资源管理器
class_name SWFResourceManager extends Node
var _swf_cache = {}
var _loading_callbacks = {}
func load_swf(path, on_loaded_callback = null):
if _swf_cache.has(path):
# 已缓存，直接返回
if on_loaded_callback:
on_loaded_callback.call(_swf_cache[path])
return _swf_cache[path]
# 新加载
var swf = godot_swf_gds_bridge.new()
swf.class_init(path)
add_child(swf)
# 存储回调
if on_loaded_callback:
if not _loading_callbacks.has(path):
_loading_callbacks[path] = []
_loading_callbacks[path].append(on_loaded_callback)
# 连接解析完成事件
swf.parse_finished.connect(_on_swf_loaded.bind(path, swf))
swf.parse()
return swf
func _on_swf_loaded(path, swf):
_swf_cache[path] = swf
# 调用所有等待的回调
if _loading_callbacks.has(path):
for callback in _loading_callbacks[path]:
callback.call(swf)
_loading_callbacks.erase(path)
2. 配置驱动的动画系统¶
# animation_config.gd
extends Node
const CHARACTER_ANIMATIONS = {
"hero": {
"idle": 10,
"walk": 20,
"run": 30,
"attack": 40,
"jump": 50,
"death": 60
},
"enemy": {
"idle": 100,
"walk": 110,
"attack": 120,
"hurt": 130,
"death": 140
}
}
static func get_animation_id(character_type, animation_name):
if CHARACTER_ANIMATIONS.has(character_type):
return CHARACTER_ANIMATIONS[character_type].get(animation_name, 0)
return 0
static func get_looping_animations():
return ["idle", "walk", "run"]
# 使用方式
func setup_character_animations(character_type, swf_player):
var animations = {}
var char_anims = CHARACTER_ANIMATIONS[character_type]
for anim_name in char_anims:
var anim_id = char_anims[anim_name]
var anim = swf_player.create_anim(anim_id)
anim.is_looping = anim_name in get_looping_animations()
animations[anim_name] = anim
return animations
调试与问题排查¶
1. 解析问题排查¶
func debug_parsing_issues():
var swf = godot_swf_gds_bridge.new()
swf.class_init("res://problematic.swf")
add_child(swf)
# 监控解析过程
var timer = Timer.new()
add_child(timer)
timer.timeout.connect(_check_parse_progress.bind(swf))
timer.start(0.1) # 每100ms检查一次
swf.parse_finished.connect(_on_debug_parse_finished.bind(timer))
swf.parse()
func _check_parse_progress(swf):
var progress = swf.get_parse_progress()
print("解析进度: ", progress)
# 如果进度长时间卡住，可能是文件有问题
if progress > 0.0 and progress < 1.0:
# 解析中...
pass
func _on_debug_parse_finished(timer):
timer.stop()
print("解析完成")
2. 动画播放问题排查¶
func debug_animation_playback():
# 测试所有可能的动画ID
for i in range(1, 1000):
var anim = swf.create_anim(i)
anim.animation_finished.connect(_on_anim_test_finished.bind(i))
# 播放短暂时间后停止
anim.play()
await get_tree().create_timer(0.1).timeout
if anim.is_playing():
print("发现有效动画ID: ", i)
anim.stop()
func _on_anim_test_finished(anim_id):
print("动画完成: ", anim_id)