177 lines
4.0 KiB
GDScript
177 lines
4.0 KiB
GDScript
class_name VinePlatform
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extends StaticBody2D
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## ===== 节点引用 =====
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@onready var player_trigger: Area2D = %PlayerTriggerVolumn
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@onready var hook_trigger: Area2D = %HookAttractVolumn
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@onready var sprite: Sprite2D = $Sprite2D
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@onready var collision: CollisionShape2D = $CollisionShape2D
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## ===== 配置 =====
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## 触发到消失的总时间（固定）
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@export var destroy_total_time: float = 2.0
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## 触发后多久开始抖动（可调）
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@export var shake_start_time: float = 1.0
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## 消失后多久恢复（再生时间）
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@export var respawn_time: float = 3.0
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## 抖动参数
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@export var shake_x: float = 1.0
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@export var shake_y: float = 1.0
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@export var step_time: float = 0.034
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## ===== 状态机 =====
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enum State {
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IDLE,
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TRIGGERED,
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DISAPPEARED
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}
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var _current_state: State = State.IDLE
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## ===== 抖动控制 =====
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var _shake_tween: Tween
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var _shake_origin_pos: Vector2
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## 防止重复触发
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var _sequence_started := false
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func _ready() -> void:
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player_trigger.body_entered.connect(_on_player_entered)
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hook_trigger.body_entered.connect(_on_hook_hit)
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## ==============================
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## 状态切换
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## ==============================
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func change_state(new_state: State) -> void:
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if new_state == _current_state:
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return
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_current_state = new_state
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match new_state:
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State.IDLE:
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_enable_platform(true)
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State.TRIGGERED:
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_start_destroy_sequence()
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State.DISAPPEARED:
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_disappear_and_respawn()
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## ==============================
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## 触发入口
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## ==============================
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func _on_player_entered(body: Node) -> void:
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if body is Player:
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_trigger_platform()
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func _on_hook_hit(hit_pos: Vector2, hook: Hook) -> void:
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_trigger_platform()
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func _trigger_platform() -> void:
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if _sequence_started:
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return
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_sequence_started = true
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print("藤蔓平台触发：2秒后消失，再生时间:", respawn_time)
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change_state(State.TRIGGERED)
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## ==============================
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## 销毁流程：抖动 + 消失（非销毁）
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## ==============================
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func _start_destroy_sequence() -> void:
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var shake_time: float = clampf(shake_start_time, 0.0, destroy_total_time)
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var remaining_time: float = destroy_total_time - shake_time
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# 前半段静止
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if shake_time > 0.0:
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await get_tree().create_timer(shake_time).timeout
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# 后半段抖动
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if remaining_time > 0.0:
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start_shaking()
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await get_tree().create_timer(remaining_time).timeout
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stop_shaking()
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# 进入消失状态
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change_state(State.DISAPPEARED)
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## ==============================
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## 消失 + 再生
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## ==============================
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func _disappear_and_respawn() -> void:
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print("平台消失，等待再生...")
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# 关闭平台
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_enable_platform(false)
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# 等待再生时间
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await get_tree().create_timer(respawn_time).timeout
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print("平台恢复！")
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# 重置触发锁
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_sequence_started = false
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# 回到初始状态
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change_state(State.IDLE)
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## ==============================
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## 启用/禁用平台（关键）
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## ==============================
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func _enable_platform(enable: bool) -> void:
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sprite.visible = enable
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collision.disabled = not enable
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player_trigger.monitoring = enable
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hook_trigger.monitoring = enable
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## ==============================
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## 抖动效果
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## ==============================
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func start_shaking() -> void:
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if _shake_tween and _shake_tween.is_running():
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return
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_shake_origin_pos = sprite.position
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_shake_tween = create_tween()
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_shake_tween.set_loops()
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_shake_tween.set_trans(Tween.TRANS_SINE)
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_shake_tween.set_ease(Tween.EASE_IN_OUT)
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_shake_tween.tween_property(sprite, "position", _shake_origin_pos + Vector2(-shake_x, -shake_y), step_time)
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_shake_tween.tween_property(sprite, "position", _shake_origin_pos + Vector2(shake_x, shake_y), step_time)
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_shake_tween.tween_property(sprite, "position", _shake_origin_pos + Vector2(-shake_x, shake_y), step_time)
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_shake_tween.tween_property(sprite, "position", _shake_origin_pos + Vector2(shake_x, -shake_y), step_time)
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func stop_shaking() -> void:
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if _shake_tween:
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_shake_tween.kill()
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_shake_tween = null
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sprite.position = _shake_origin_pos
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