88 lines
2.5 KiB
C#
88 lines
2.5 KiB
C#
//------------------------------------------------------------
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// Game Framework
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// Copyright © 2013-2021 Jiang Yin. All rights reserved.
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// Homepage: https://gameframework.cn/
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// Feedback: mailto:ellan@gameframework.cn
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//------------------------------------------------------------
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using UnityEngine;
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using UnityEngine.Events;
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using UnityEngine.EventSystems;
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namespace UI
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{
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public class CommonButton : MonoBehaviour, IPointerEnterHandler, IPointerDownHandler, IPointerExitHandler,
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IPointerUpHandler
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{
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private const float FadeTime = 0.3f;
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private const float OnHoverAlpha = 0.7f;
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private const float OnClickAlpha = 0.6f;
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[SerializeField] private UnityEvent _onPointerEnterAction = null;
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[SerializeField] private UnityEvent _onClickAction = null;
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[SerializeField] private UnityEvent _onPointerExitAction = null;
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[SerializeField] private bool _enableFade = true;
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private CanvasGroup _canvasGroup = null;
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private void Awake()
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{
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_canvasGroup = gameObject.GetOrAddComponent<CanvasGroup>();
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}
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private void OnDisable()
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{
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_canvasGroup.alpha = 1f;
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}
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public void OnPointerEnter(PointerEventData eventData)
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{
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if (eventData.button != PointerEventData.InputButton.Left)
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{
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return;
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}
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StopAllCoroutines();
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if (_enableFade)
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StartCoroutine(_canvasGroup.FadeToAlpha(OnHoverAlpha, FadeTime));
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_onPointerEnterAction.Invoke();
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}
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public void OnPointerDown(PointerEventData eventData)
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{
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if (eventData.button != PointerEventData.InputButton.Left)
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{
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return;
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}
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_canvasGroup.alpha = OnClickAlpha;
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_onClickAction.Invoke();
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}
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public void OnPointerUp(PointerEventData eventData)
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{
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if (eventData.button != PointerEventData.InputButton.Left)
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{
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return;
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}
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_canvasGroup.alpha = OnHoverAlpha;
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}
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public void OnPointerExit(PointerEventData eventData)
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{
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if (eventData.button != PointerEventData.InputButton.Left)
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{
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return;
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}
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StopAllCoroutines();
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if (_enableFade)
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StartCoroutine(_canvasGroup.FadeToAlpha(1.0f, FadeTime));
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_onPointerExitAction.Invoke();
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}
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}
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} |