66 lines
1.7 KiB
GDScript
66 lines
1.7 KiB
GDScript
extends Node
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## Handles touch events and emits them to the EventSystem
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const Finger = preload ("res://lib/utils/touch/finger.gd")
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## Record<Finger.Type, Area3D>
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var finger_areas: Dictionary
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var areas_entered = {}
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func is_touching() -> bool:
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return areas_entered.keys().size() > 0
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func add_finger(finger_type: Finger.Type, area: Area3D):
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finger_areas[finger_type] = area
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area.area_entered.connect(func(entered_area):
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_on_area_entered(finger_type, entered_area)
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)
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area.area_exited.connect(func(entered_area):
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_on_area_exited(finger_type, entered_area)
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)
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func remove_finger(finger_type: Finger.Type):
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if finger_areas.has(finger_type):
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finger_areas.erase(finger_type)
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func _physics_process(_delta):
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for area in areas_entered.keys():
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if areas_entered.has(area) == false:
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return
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_emit_event("touch_move", area)
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func _on_area_entered(finger_type, area):
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if areas_entered.has(area):
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if !areas_entered[area].has(finger_type):
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areas_entered[area].append(finger_type)
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_emit_event("touch_enter", area)
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else:
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areas_entered[area] = [finger_type]
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_emit_event("touch_enter", area)
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func _on_area_exited(finger_type, area):
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if areas_entered.has(area):
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if areas_entered[area].has(finger_type):
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areas_entered[area].erase(finger_type)
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if areas_entered[area].size() == 0:
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_emit_event("touch_leave", area)
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areas_entered.erase(area)
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func _emit_event(type: String, target):
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var event = EventTouch.new()
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event.target = target
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var fingers: Array[Finger] = []
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for finger_type in areas_entered[target]:
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var finger = Finger.new()
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finger.type = finger_type
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finger.area = finger_areas[finger_type]
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fingers.append(finger)
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event.fingers = fingers
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EventSystem.emit(type, event)
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