修改水

Packages/com.waveharmonic.crest/Runtime/Scripts/Time/CutsceneTimeProvider.cs

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+// Crest Water System
+// Copyright © 2024 Wave Harmonic. All rights reserved.
+
+using UnityEngine;
+using UnityEngine.Playables;
+
+namespace WaveHarmonic.Crest
+{
+    /// <summary>
+    /// This time provider feeds a Timeline time to the water system, using a Playable Director.
+    /// </summary>
+    [AddComponentMenu(Constants.k_MenuPrefixTime + "Cutscene Time Provider")]
+    [@HelpURL("Manual/TimeProviders.html#timelines-and-cutscenes")]
+    public sealed partial class CutsceneTimeProvider : TimeProvider
+    {
+        [SerializeField, HideInInspector]
+#pragma warning disable 414
+        int _Version = 0;
+#pragma warning restore 414
+
+#if d_ModuleUnityDirector
+        [Tooltip("Playable Director to take time from.")]
+        [@GenerateAPI(symbol: "d_ModuleUnityDirector")]
+        [SerializeField]
+        internal PlayableDirector _PlayableDirector;
+#endif
+
+        [Tooltip("Time offset which will be added to the Timeline time.")]
+        [@GenerateAPI]
+        [SerializeField]
+        float _TimeOffset = 0f;
+
+        [Tooltip("Assign this time provider to the water system when this component becomes active.")]
+        [@GenerateAPI]
+        [SerializeField]
+        bool _AssignToWaterComponentOnEnable = true;
+
+        [Tooltip("Restore the time provider that was previously assigned to water system when this component disables.")]
+        [@GenerateAPI]
+        [SerializeField]
+        bool _RestorePreviousTimeProviderOnDisable = true;
+
+        readonly DefaultTimeProvider _FallbackTimeProvider = new();
+        bool _Attached = false;
+
+        private protected override void OnDisable()
+        {
+            base.OnDisable();
+
+            var water = WaterRenderer.Instance;
+            if (_RestorePreviousTimeProviderOnDisable && _Attached && water != null)
+            {
+                water.TimeProviders.Pop(this);
+            }
+
+            _Attached = false;
+        }
+
+        private protected override System.Action<WaterRenderer> OnEnableMethod => Attach;
+        void Attach(WaterRenderer water)
+        {
+            if (_Attached) return;
+
+#if d_ModuleUnityDirector
+            if (_PlayableDirector == null) return;
+#endif
+
+            if (_AssignToWaterComponentOnEnable && water)
+            {
+                water.TimeProviders.Push(this);
+            }
+
+            _Attached = true;
+        }
+
+        /// <remarks>
+        /// If there is a PlayableDirector which is playing, return its time, otherwise use
+        /// the <see cref="TimeProvider"/> being used before this component initialised,
+        /// else fallback to a default <see cref="TimeProvider"/>.
+        /// </remarks>
+        /// <inheritdoc/>
+        public override float Time
+        {
+            get
+            {
+#if d_ModuleUnityDirector
+                if (_PlayableDirector != null
+                    && _PlayableDirector.isActiveAndEnabled
+                    && (!Application.isPlaying || _PlayableDirector.state == PlayState.Playing))
+                {
+                    return (float)_PlayableDirector.time + _TimeOffset;
+                }
+#endif
+
+                // Use a fallback TP
+                return _FallbackTimeProvider.Time;
+            }
+        }
+
+        /// <inheritdoc/>
+        public override float Delta => UnityEngine.Time.deltaTime;
+
+#if UNITY_EDITOR
+        [@OnChange]
+        void OnChange(string propertyPath, object previousValue)
+        {
+            if (!isActiveAndEnabled) return;
+            // Try to attach on change.
+            Attach(WaterRenderer.Instance);
+        }
+#endif
+    }
+}