? ? ?在Unity編輯器的Scene視圖進行控制播放粒子ParticleSystem，可以借助方法Simulate，具體可以參照以下例子：

創建一個空對象ParticleAll，在這個對象下添加一個粒子（要添加多個粒子的話，添加到這個粒子之下），此時選中粒子，可以看到Scene視圖預覽播放粒子效果。附上新腳本EditParticleSystem，此為空腳本，如下： C# Code?

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using?UnityEngine; public?class?EditParticleSystem?:?MonoBehaviour { }

創建一個這個腳本的編輯器類EditParticleSystemInspector，代碼如下： C# Code?

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using?UnityEditor; using?UnityEngine; [CustomEditor(typeof(EditParticleSystem))] public?class?EditParticleSystemInspector?:?Editor { ????///?<summary> ????///?滑動桿的當前時間 ????///?</summary> ????private?float?m_CurTime; ???? ????///?<summary> ????///?當前是否是預覽播放狀態 ????///?</summary> ????private?bool?m_Playing; ????///?<summary> ????///?當前運行時間 ????///?</summary> ????private?float?m_RunningTime; ???? ????///?<summary> ????///?上一次系統時間 ????///?</summary> ????private?double?m_PreviousTime; ????///?<summary> ????///?滑動桿總長度 ????///?</summary> ????private?const?float?kDuration?=?30f; ????private?ParticleSystem?m_ParticleSystem; ????private?EditParticleSystem?editAnimator?{?get?{?return?target?as?EditParticleSystem;?}?} ????private?ParticleSystem?particleSystem ????{ ????????get?{?return?m_ParticleSystem????(m_ParticleSystem?=?editAnimator.GetComponentInChildren<ParticleSystem>());?} ????} ????void?OnEnable() ????{ ????????m_PreviousTime?=?EditorApplication.timeSinceStartup; ????????EditorApplication.update?+=?inspectorUpdate; ????} ????void?OnDisable() ????{ ????????EditorApplication.update?-=?inspectorUpdate; ????} ????public?override?void?OnInspectorGUI() ????{ ????????EditorGUILayout.BeginHorizontal(); ????????if?(GUILayout.Button("Play")) ????????{ ????????????play(); ????????} ????????if?(GUILayout.Button("Stop")) ????????{ ????????????stop(); ????????} ????????EditorGUILayout.EndHorizontal(); ????????m_CurTime?=?EditorGUILayout.Slider("Time:",?m_CurTime,?0f,?kDuration); ????????manualUpdate(); ????} ????///?<summary> ????///?進行預覽播放 ????///?</summary> ????private?void?play() ????{ ????????if?(Application.isPlaying?||?particleSystem?==?null) ????????{ ????????????return; ????????} ????????m_RunningTime?=?0f; ????????m_Playing?=?true; ????} ????///?<summary> ????///?停止預覽播放 ????///?</summary> ????private?void?stop() ????{ ????????if?(Application.isPlaying?||?particleSystem?==?null) ????????{ ????????????return; ????????} ????????m_Playing?=?false; ????????m_CurTime?=?0f; ????} ????///?<summary> ????///?預覽播放狀態下的更新 ????///?</summary> ????private?void?update() ????{ ????????if?(Application.isPlaying?||?particleSystem?==?null) ????????{ ????????????return; ????????} ????????if?(m_RunningTime?>=?kDuration) ????????{ ????????????m_Playing?=?false; ????????????return; ????????} ????????particleSystem.Simulate(m_RunningTime,?true); ????????SceneView.RepaintAll(); ????????Repaint(); ????????m_CurTime?=?m_RunningTime; ????} ????///?<summary> ????///?非預覽播放狀態下，通過滑桿來播放當前動畫幀 ????///?</summary> ????private?void?manualUpdate() ????{ ????????if?(particleSystem?&&?!m_Playing) ????????{ ????????????particleSystem.Simulate(m_CurTime,?true); ????????????SceneView.RepaintAll(); ????????} ????} ????private?void?inspectorUpdate() ????{ ????????var?delta?=?EditorApplication.timeSinceStartup?-?m_PreviousTime; ????????m_PreviousTime?=?EditorApplication.timeSinceStartup; ????????if?(!Application.isPlaying?&&?m_Playing) ????????{ ????????????m_RunningTime?=?Mathf.Clamp(m_RunningTime?+?(float)delta,?0f,?kDuration); ????????????update(); ????????} ????} }

檢視器效果如下：
拖動滑桿，即可播放當前時間的那一幀，如下所示：

點擊"Play"，即可以自動播放整個粒子，如下所示：

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