Unity全局屏幕点击特效

思路：

1、生成一个点击特效实例，每点击屏幕，就调整特效实例的位置并控制特效的显隐状态即可。

2、需要注意要保证在编辑器开发时或手机上运行时都要显示点击效果。

方案一 （推荐） using UnityEngine; using UnityEngine.EventSystems; public class ScreenClick : MonoBehaviour,IPointerDownHandler { public GameObject effectPrefab;//特效预制体 private GameObject clickEffectInstance; private RectTransform _Rect; void Start() { _Rect = GetComponent<RectTransform>(); clickEffectInstance = Instantiate(effectPrefab, transform); clickEffectInstance.SetActive(false); } public void OnPointerDown(PointerEventData eventData) { clickEffectInstance.SetActive(false); RectTransformUtility.ScreenPointToWorldPointInRectangle(_Rect,eventData.position,eventData.enterEventCamera,out Vector3 pos); clickEffectInstance.transform.position = pos; clickEffectInstance.SetActive(true); } }

方案二 using UnityEngine; public class ScreenClick : MonoBehaviour { public GameObject effectPrefab;//特效预制体 public Camera _Camera; private GameObject clickEffectInstance; private RectTransform _Rect; void Start() { _Rect = GetComponent<RectTransform>(); clickEffectInstance = Instantiate(effectPrefab, transform); clickEffectInstance.SetActive(false); } void Update() { #if UNITY_EDITOR if (Input.GetKeyDown(KeyCode.Mouse0)) { clickEffectInstance.SetActive(false); var screenPos = Input.mousePosition; ShowClickEffect(screenPos); Debug.Log("222"); } #elif UNITY_ANDROID||UNITY_IOS if (Input.touchCount > 0) { var touch = Input.GetTouch(0); if (touch.phase == TouchPhase.Began) { clickEffectInstance.SetActive(false); var screenPos = Input.GetTouch(0).position; ShowClickEffect(screenPos); Debug.Log("333"); } } #endif } /// <summary> /// 显示点击特效 /// </summary> /// <param name="screenPos">点击的屏幕位置</param> private void ShowClickEffect(Vector2 screenPos) { RectTransformUtility.ScreenPointToWorldPointInRectangle(_Rect, screenPos, _Camera, out Vector3 pos); clickEffectInstance.transform.position = pos; clickEffectInstance.SetActive(true); } }