77 lines
2.6 KiB
C#
77 lines
2.6 KiB
C#
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#if PACKAGE_DOCS_GENERATION || UNITY_INPUT_SYSTEM_ENABLE_UI
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using UnityEngine.EventSystems;
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using UnityEngine.Serialization;
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using UnityEngine.InputSystem.Layouts;
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////TODO: custom icon for OnScreenStick component
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namespace UnityEngine.InputSystem.OnScreen
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{
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/// <summary>
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/// A stick control displayed on screen and moved around by touch or other pointer
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/// input.
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/// </summary>
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[AddComponentMenu("Input/On-Screen Stick")]
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[HelpURL(InputSystem.kDocUrl + "/manual/OnScreen.html#on-screen-sticks")]
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public class OnScreenStick : OnScreenControl, IPointerDownHandler, IPointerUpHandler, IDragHandler
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{
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public void OnPointerDown(PointerEventData eventData)
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{
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if (eventData == null)
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throw new System.ArgumentNullException(nameof(eventData));
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RectTransformUtility.ScreenPointToLocalPointInRectangle(transform.parent.GetComponentInParent<RectTransform>(), eventData.position, eventData.pressEventCamera, out m_PointerDownPos);
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}
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public void OnDrag(PointerEventData eventData)
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{
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if (eventData == null)
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throw new System.ArgumentNullException(nameof(eventData));
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RectTransformUtility.ScreenPointToLocalPointInRectangle(transform.parent.GetComponentInParent<RectTransform>(), eventData.position, eventData.pressEventCamera, out var position);
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var delta = position - m_PointerDownPos;
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delta = Vector2.ClampMagnitude(delta, movementRange);
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((RectTransform)transform).anchoredPosition = m_StartPos + (Vector3)delta;
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var newPos = new Vector2(delta.x / movementRange, delta.y / movementRange);
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SendValueToControl(newPos);
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}
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public void OnPointerUp(PointerEventData eventData)
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{
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((RectTransform)transform).anchoredPosition = m_StartPos;
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SendValueToControl(Vector2.zero);
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}
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private void Start()
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{
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m_StartPos = ((RectTransform)transform).anchoredPosition;
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}
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public float movementRange
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{
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get => m_MovementRange;
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set => m_MovementRange = value;
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}
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[FormerlySerializedAs("movementRange")]
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[SerializeField]
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private float m_MovementRange = 50;
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[InputControl(layout = "Vector2")]
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[SerializeField]
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private string m_ControlPath;
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private Vector3 m_StartPos;
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private Vector2 m_PointerDownPos;
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protected override string controlPathInternal
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{
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get => m_ControlPath;
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set => m_ControlPath = value;
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}
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}
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}
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#endif
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