testss

Library/PackageCache/com.unity.render-pipelines.core@11.0.0/Runtime/Volume/VolumeStack.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+
+namespace UnityEngine.Rendering
+{
+    /// <summary>
+    /// Holds the state of a Volume blending update. A global stack is
+    /// available by default in <see cref="VolumeManager"/> but you can also create your own using
+    /// <see cref="VolumeManager.CreateStack"/> if you need to update the manager with specific
+    /// settings and store the results for later use.
+    /// </summary>
+    public sealed class VolumeStack : IDisposable
+    {
+        // Holds the state of _all_ component types you can possibly add on volumes
+        internal Dictionary<Type, VolumeComponent> components;
+
+        internal VolumeStack()
+        {
+        }
+
+        internal void Reload(Type[] baseTypes)
+        {
+            if (components == null)
+                components = new Dictionary<Type, VolumeComponent>();
+            else
+                components.Clear();
+
+            foreach (var type in baseTypes)
+            {
+                var inst = (VolumeComponent)ScriptableObject.CreateInstance(type);
+                components.Add(type, inst);
+            }
+        }
+
+        /// <summary>
+        /// Gets the current state of the <see cref="VolumeComponent"/> of type <typeparamref name="T"/>
+        /// in the stack.
+        /// </summary>
+        /// <typeparam name="T">A type of <see cref="VolumeComponent"/>.</typeparam>
+        /// <returns>The current state of the <see cref="VolumeComponent"/> of type <typeparamref name="T"/>
+        /// in the stack.</returns>
+        public T GetComponent<T>()
+            where T : VolumeComponent
+        {
+            var comp = GetComponent(typeof(T));
+            return (T)comp;
+        }
+
+        /// <summary>
+        /// Gets the current state of the <see cref="VolumeComponent"/> of the specified type in the
+        /// stack.
+        /// </summary>
+        /// <param name="type">The type of <see cref="VolumeComponent"/> to look for.</param>
+        /// <returns>The current state of the <see cref="VolumeComponent"/> of the specified type,
+        /// or <c>null</c> if the type is invalid.</returns>
+        public VolumeComponent GetComponent(Type type)
+        {
+            components.TryGetValue(type, out var comp);
+            return comp;
+        }
+
+        /// <summary>
+        /// Cleans up the content of this stack. Once a <c>VolumeStack</c> is disposed, it souldn't
+        /// be used anymore.
+        /// </summary>
+        public void Dispose()
+        {
+            foreach (var component in components)
+                CoreUtils.Destroy(component.Value);
+
+            components.Clear();
+        }
+    }
+}