92 lines
2.4 KiB
GDScript
92 lines
2.4 KiB
GDScript
@tool
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extends Node
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const _CONSTANTS = preload("res://addons/reedcamera/_data/CameraSystemConst.gd")
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var _screen_size : Vector2i
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var _camera_points : Array[CameraPointer]
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var _current_camera_point : CameraPointer
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signal anchor_registered(anchor: CameraAnchor)
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signal anchor_unregistered(anchor: CameraAnchor)
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var _anchors : Array[CameraAnchor]
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#region 相機指針
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func request_register_pointer(ptr: CameraPointer) -> bool:
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if not is_instance_valid(ptr):
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return false
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var cam := ptr.get_camera()
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if not is_instance_valid(cam):
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return false # System 决定：无效 camera 不接受注册
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# 去重
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if ptr in _camera_points:
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_current_camera_point = ptr
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return true
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_camera_points.append(ptr)
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# 你可以在这里做选择策略：比如最新优先/priority
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_current_camera_point = ptr
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return true
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func request_unregister_pointer(ptr: CameraPointer) -> void:
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_camera_points.erase(ptr)
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if _current_camera_point == ptr:
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_current_camera_point = _camera_points.back() if _camera_points.size() > 0 else null
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func get_current_camera_pointer() -> CameraPointer:
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return _current_camera_point
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func get_camera() -> Camera2D:
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return _current_camera_point.get_camera() if _current_camera_point else null
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#endregion
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#region 相機錨點
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func register_anchor(anchor: CameraAnchor) -> void:
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if anchor in _anchors:
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return
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_anchors.append(anchor)
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anchor_registered.emit(anchor)
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func unregister_anchor(anchor: CameraAnchor) -> void:
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if _anchors.has(anchor):
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_anchors.erase(anchor)
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anchor_unregistered.emit(anchor)
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func get_all_anchors() -> Array[CameraAnchor]:
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return _anchors.duplicate()
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#endregion
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func _enter_tree() -> void:
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if not Engine.has_singleton(_CONSTANTS.CAMERA_SYSTEM_NAME):
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Engine.register_singleton(_CONSTANTS.CAMERA_SYSTEM_NAME, self)
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func _ready() -> void:
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# Setting default screensize
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_screen_size = Vector2i(
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ProjectSettings.get_setting("display/window/size/viewport_width"),
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ProjectSettings.get_setting("display/window/size/viewport_height")
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)
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# For editor
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if Engine.is_editor_hint():
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ProjectSettings.settings_changed.connect(func():
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_screen_size = Vector2i(
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ProjectSettings.get_setting("display/window/size/viewport_width"),
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ProjectSettings.get_setting("display/window/size/viewport_height")
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)
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)
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# For runtime
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else:
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get_tree().get_root().size_changed.connect(func():
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_screen_size = get_viewport().get_visible_rect().size
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)
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func get_screen_size() -> Vector2i:
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return _screen_size
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