43 lines
891 B
GDScript3
43 lines
891 B
GDScript3
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extends Node
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signal swipe_left
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signal swipe_right
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signal swipe_up
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signal swipe_down
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var swipe_start: Vector2
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var swipe_done = false
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const MAX_SWIPE_DISTANCE = 80
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func _unhandled_input(event):
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if event is InputEventScreenTouch:
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if event.pressed:
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swipe_done = false
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swipe_start = event.get_position()
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elif not swipe_done:
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_interpret_swipe(event.get_position())
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elif event is InputEventScreenDrag:
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if not swipe_done:
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_interpret_swipe(event.position)
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func _interpret_swipe(swipe_end: Vector2):
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var diff = swipe_end - swipe_start
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if diff.length_squared() > MAX_SWIPE_DISTANCE * MAX_SWIPE_DISTANCE:
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var normalized = diff.normalized()
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if normalized.x > 0.5:
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emit_signal("swipe_right")
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elif normalized.x < -0.5:
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emit_signal("swipe_left")
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elif normalized.y > 0.5:
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emit_signal("swipe_down")
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else:
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emit_signal("swipe_up")
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swipe_done = true
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