fix: add support for Unity 6.7

close #408

Runtime/Internal/Extensions/MeshExtensions.cs

@@ -0,0 +1,153 @@
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+namespace Coffee.UIParticleInternal
+{
+    internal static class MeshExtensions
+    {
+        internal static readonly InternalObjectPool<Mesh> s_MeshPool = new InternalObjectPool<Mesh>(
+            () =>
+            {
+                var mesh = new Mesh
+                {
+                    hideFlags = HideFlags.DontSave | HideFlags.NotEditable
+                };
+                mesh.MarkDynamic();
+                return mesh;
+            },
+            mesh => mesh,
+            mesh =>
+            {
+                if (mesh != null)
+                {
+                    mesh.Clear();
+                }
+            });
+
+        public static Mesh Rent()
+        {
+            return s_MeshPool.Rent();
+        }
+
+        public static void Return(ref Mesh mesh)
+        {
+            s_MeshPool.Return(ref mesh);
+        }
+
+        public static void CopyTo(this Mesh self, Mesh dst)
+        {
+            if (self == null || dst == null) return;
+
+            var vector3List = InternalListPool<Vector3>.Rent();
+            var vector4List = InternalListPool<Vector4>.Rent();
+            var color32List = InternalListPool<Color32>.Rent();
+            var intList = InternalListPool<int>.Rent();
+
+            dst.Clear(false);
+
+            self.GetVertices(vector3List);
+            dst.SetVertices(vector3List);
+
+            self.GetTriangles(intList, 0);
+            dst.SetTriangles(intList, 0);
+
+            self.GetNormals(vector3List);
+            dst.SetNormals(vector3List);
+
+            self.GetTangents(vector4List);
+            dst.SetTangents(vector4List);
+
+            self.GetColors(color32List);
+            dst.SetColors(color32List);
+
+            self.GetUVs(0, vector4List);
+            dst.SetUVs(0, vector4List);
+
+            self.GetUVs(1, vector4List);
+            dst.SetUVs(1, vector4List);
+
+            self.GetUVs(2, vector4List);
+            dst.SetUVs(2, vector4List);
+
+            self.GetUVs(3, vector4List);
+            dst.SetUVs(3, vector4List);
+
+            dst.RecalculateBounds();
+            InternalListPool<Vector3>.Return(ref vector3List);
+            InternalListPool<Vector4>.Return(ref vector4List);
+            InternalListPool<Color32>.Return(ref color32List);
+            InternalListPool<int>.Return(ref intList);
+        }
+
+        public static void CopyTo(this VertexHelper self, Mesh dst)
+        {
+            if (self == null || dst == null) return;
+
+            self.FillMesh(dst);
+        }
+
+        public static void CopyTo(this Mesh self, VertexHelper dst)
+        {
+            if (self == null || dst == null) return;
+
+            var vertexCount = self.vertexCount;
+            var indexCount = self.triangles.Length;
+            self.CopyTo(dst, vertexCount, indexCount);
+        }
+
+        public static void CopyTo(this Mesh self, VertexHelper dst, int vertexCount, int indexCount)
+        {
+            if (self == null || dst == null) return;
+
+            var positions = InternalListPool<Vector3>.Rent();
+            var normals = InternalListPool<Vector3>.Rent();
+            var uv0 = InternalListPool<Vector4>.Rent();
+            var uv1 = InternalListPool<Vector4>.Rent();
+            var uv2 = InternalListPool<Vector4>.Rent();
+            var uv3 = InternalListPool<Vector4>.Rent();
+            var tangents = InternalListPool<Vector4>.Rent();
+            var colors = InternalListPool<Color32>.Rent();
+            var indices = InternalListPool<int>.Rent();
+            self.GetVertices(positions);
+            self.GetColors(colors);
+            self.GetUVs(0, uv0);
+            self.GetUVs(1, uv1);
+            self.GetUVs(2, uv1);
+            self.GetUVs(3, uv1);
+            self.GetNormals(normals);
+            self.GetTangents(tangents);
+            self.GetIndices(indices, 0);
+
+            dst.Clear();
+            for (var i = 0; i < vertexCount; i++)
+            {
+                dst.AddVert(positions.GetOrDefault(i), colors.GetOrDefault(i), uv0.GetOrDefault(i), uv1.GetOrDefault(i),
+                    uv2.GetOrDefault(i), uv3.GetOrDefault(i), normals.GetOrDefault(i), tangents.GetOrDefault(i));
+            }
+
+            var count = Mathf.Clamp(indexCount, 0, indices.Count);
+            for (var i = 0; i < count - 2; i += 3)
+            {
+                dst.AddTriangle(indices[i], indices[i + 1], indices[i + 2]);
+            }
+
+            InternalListPool<Vector3>.Return(ref positions);
+            InternalListPool<Vector3>.Return(ref normals);
+            InternalListPool<Vector4>.Return(ref uv0);
+            InternalListPool<Vector4>.Return(ref uv1);
+            InternalListPool<Vector4>.Return(ref uv2);
+            InternalListPool<Vector4>.Return(ref uv3);
+            InternalListPool<Vector4>.Return(ref tangents);
+            InternalListPool<Color32>.Return(ref colors);
+            InternalListPool<int>.Return(ref indices);
+        }
+
+        private static T GetOrDefault<T>(this List<T> self, int index)
+        {
+            return 0 <= index && index < self.Count
+                ? self[index]
+                : default;
+        }
+    }
+}