60 lines
1.3 KiB
GDScript
60 lines
1.3 KiB
GDScript
extends Control
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class_name FollowingUi
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const EDGE_MARGIN = 10
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var target: Node3D
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var is_mouse_over: bool = false
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@onready var camera: Camera3D = get_viewport().get_camera_3d()
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func _ready() -> void:
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assert(camera != null, "camera missing!")
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visible = false
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func _process(_delta: float) -> void:
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if not visible or target == null:
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return
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var pos := camera.unproject_position(target.global_position)
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var corner_1 := Vector2.ONE * EDGE_MARGIN
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var viewport_size := get_viewport().get_visible_rect().size
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var corner_2 := Vector2(
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viewport_size.x - size.x - EDGE_MARGIN,
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viewport_size.y - size.y - EDGE_MARGIN,
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)
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position = (pos - pivot_offset).clamp(corner_1, corner_2)
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func _input(event: InputEvent) -> void:
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if not visible:
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return
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if event is InputEventMouseButton and not is_mouse_over:
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var button_event := event as InputEventMouseButton
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if not button_event.pressed:
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return
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if (
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button_event.button_index == MOUSE_BUTTON_RIGHT
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or button_event.button_index == MOUSE_BUTTON_LEFT
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):
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close()
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if event is InputEventMouseMotion:
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var motion_event := event as InputEventMouseMotion
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is_mouse_over = (
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Rect2(global_position, size)
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.has_point(motion_event.position)
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)
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func set_target(to: Node3D) -> void:
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visible = true
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target = to
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func close() -> void:
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visible = false
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target = null
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