167 lines
4.6 KiB
GDScript
167 lines
4.6 KiB
GDScript
@tool
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class_name Sign extends Control
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@export var show_sign := true:
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set(val):
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show_sign = val
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# 隐藏时强制设置透明度为 0，显示时需要根据激活状态设置透明度
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if not val:
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modulate.a = 0.0
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elif activated:
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modulate.a = 1.0
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@export var draw_shadow := false
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signal interacted
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signal cancel
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@onready var texture_container = %TextureContainer as Container
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@onready var sprite2d = %Sprite2D as Sprite2D
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# var shadow_texture = preload("res://asset/art/ui/action_mark/探索空心ui.png") as Texture2D
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# 同时只能有一个物品被激活交互态，其他物品进入等待队列
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static var occupied: NodePath
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static var _pending_activate_sign := [] as Array[NodePath]
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# 使用互斥锁保证线程安全。在操作 occupied 或 _pending_activate_sign 时需要先锁定，操作完成后解锁
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static var mutex = Mutex.new()
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var activated = false:
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set(val):
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activated = val
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queue_redraw()
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# var sprite2d = Sprite2D.new()
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var base_scale = Vector2.ONE
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func _ready() -> void:
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base_scale = scale
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# layer = GlobalConfig.CANVAS_LAYER_FG
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var point_light = get_node_or_null("../PointLight2D")
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if point_light:
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point_light.energy = 0.0
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var area2d = get_node_or_null("../Area2D")
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if area2d:
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area2d.body_entered.connect(activate)
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area2d.body_exited.connect(disactivate)
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if not Engine.is_editor_hint():
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modulate.a = 0
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func activate(_body: Node2D) -> void:
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# point_light.energy = 1.0
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if not is_node_ready():
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await ready
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var path := get_path()
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mutex.lock()
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if occupied and occupied != path:
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_pending_activate_sign.append(path)
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mutex.unlock()
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return
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else:
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occupied = path
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activated = true
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mutex.unlock()
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if activated and show_sign:
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var tween = create_tween()
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tween.tween_property(self, "modulate:a", 1.0, 0.2)
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var p_tween = tween.parallel()
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p_tween.tween_property(self, "scale", base_scale * Vector2(1.2, 1.2), 0.3)
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p_tween.tween_property(self, "scale", base_scale, 0.1)
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# if activated:
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# focus_mode = FOCUS_ALL
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# grab_focus()
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# 绘制 prop 图标
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# func _draw() -> void:
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# if draw_shadow and sprite2d.texture:
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# var texture_x = sprite2d.texture.get_size().x
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# # var radius = max(36.0, min(texture_x * 0.5, 48.0))
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# var radius = 46.0
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# var rect = Rect2(-radius, -radius, radius * 2, radius * 2)
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# draw_texture_rect(shadow_texture, rect, false)
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# # 比 2.0 略小，选择使用 1.6
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# var texture_scale = min(radius * 1.6 / texture_x, 1.1)
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# sprite2d.scale = Vector2(texture_scale, texture_scale)
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# # var texture_radius = shadow_texture.x * 0.5
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# # draw_circle(Vector2.ZERO, radius, Color(0.8, 0.8, 0.8, 0.8), false, 6.0, true)
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# # radius -= 6.0
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# # if radius > 0:
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# # draw_circle(Vector2.ZERO, radius, Color(0.3, 0.3, 0.3, 0.3))
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# else:
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# sprite2d.scale = Vector2.ONE
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func disactivate(_body: Node2D) -> void:
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# release_focus()d
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mutex.lock()
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if activated:
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activated = false
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occupied = ""
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while _pending_activate_sign.size() > 0:
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var path = _pending_activate_sign.pop_front()
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var _sign = get_node_or_null(path)
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if _sign:
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_sign.activate(null)
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break
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else:
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# make sure the sign is not in the pending list
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_pending_activate_sign.erase(get_path())
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# double check. because the sign may be activated by other body
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if activated:
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disactivate(_body)
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mutex.unlock()
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# point_light.energy = 0.0
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if show_sign:
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create_tween().tween_property(self, "modulate:a", 0.0, 0.2)
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func _unhandled_input(event: InputEvent) -> void:
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if activated:
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if event.is_action_pressed("interact"):
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interacted.emit()
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if is_inside_tree():
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# grab focus 放在 emit 后面，避免在 emit 时 prop hud 失去 focus
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# 传送时会导致 is_inside_tree 为 false，此时也无需与 prop hud 抢占 focus
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focus_mode = FOCUS_ALL
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grab_focus()
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_set_handled()
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elif event.is_action_pressed("cancel"):
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cancel.emit()
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_set_handled()
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release_focus()
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func _set_handled():
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var viewport = get_viewport()
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if viewport:
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viewport.set_input_as_handled()
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var shake_tween
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# 使用无效道具，抖动提示
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func invalid_shake():
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if shake_tween:
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shake_tween.kill()
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# 抖动效果，逐渐减弱
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shake_tween = create_tween()
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var fps := 12.0
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var duration := 0.7
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var delta := 4.0
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var origin_pos = Vector2.ZERO
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var count = int(duration * fps)
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var delta_t = 1.0 / fps
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sprite2d.modulate = Color(1.0, 0.6, 0.6, 1.0)
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for i in range(count):
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var offset = Vector2(randf_range(-delta, delta), randf_range(-delta, delta)) * exp(-i)
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shake_tween.tween_property(sprite2d, "position", origin_pos + offset, delta_t).set_trans(
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Tween.TRANS_CUBIC
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)
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shake_tween.tween_callback(_reset_modulate)
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func _reset_modulate():
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sprite2d.modulate = Color(1.0, 1.0, 1.0, 1.0)
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