Add MeshConst

Packages/MinimalUtility/Runtime/MeshConst.cs

@@ -0,0 +1,61 @@
+using System.Runtime.CompilerServices;
+using UnityEngine;
+
+namespace MinimalUtility
+{
+    /// <summary>
+    /// プログラムで扱う頻度が高そうな<see cref="Mesh"/>の定数群.
+    /// </summary>
+    public static class MeshConst
+    {
+        /// <summary>
+        /// プリミティブキューブ.
+        /// </summary>
+        public static Mesh Cube
+        {
+            [MethodImpl(MethodImplOptions.AggressiveInlining)]
+            get
+            {
+                return new Mesh()
+                {
+                    vertices = new[]
+                    {
+                        new Vector3(0.5f, -0.5f, 0.5f), new Vector3(-0.5f, -0.5f, 0.5f), new Vector3(0.5f, 0.5f, 0.5f),
+                        new Vector3(-0.5f, 0.5f, 0.5f), new Vector3(0.5f, 0.5f, -0.5f), new Vector3(-0.5f, 0.5f, -0.5f),
+                        new Vector3(0.5f, -0.5f, -0.5f), new Vector3(-0.5f, -0.5f, -0.5f), new Vector3(0.5f, 0.5f, 0.5f),
+                        new Vector3(-0.5f, 0.5f, 0.5f), new Vector3(0.5f, 0.5f, -0.5f), new Vector3(-0.5f, 0.5f, -0.5f),
+                        new Vector3(0.5f, -0.5f, -0.5f), new Vector3(0.5f, -0.5f, 0.5f), new Vector3(-0.5f, -0.5f, 0.5f),
+                        new Vector3(-0.5f, -0.5f, -0.5f), new Vector3(-0.5f, -0.5f, 0.5f), new Vector3(-0.5f, 0.5f, 0.5f),
+                        new Vector3(-0.5f, 0.5f, -0.5f), new Vector3(-0.5f, -0.5f, -0.5f), new Vector3(0.5f, -0.5f, -0.5f),
+                        new Vector3(0.5f, 0.5f, -0.5f), new Vector3(0.5f, 0.5f, 0.5f), new Vector3(0.5f, -0.5f, 0.5f)
+                    },
+                    triangles = new[]
+                    {
+                        0, 2, 3, 0, 3, 1,
+                        8, 4, 5, 8, 5, 9,
+                        10, 6, 7, 10, 7, 11,
+                        12, 13, 14, 12, 14, 15,
+                        16, 17, 18, 16, 18, 19,
+                        20, 21, 22, 20, 22, 23
+                    },
+                    normals = new[]
+                    {
+                        Vector3.forward, Vector3.forward, Vector3.forward, Vector3.forward,
+                        Vector3.up, Vector3.up, Vector3.back, Vector3.back,
+                        Vector3.up, Vector3.up, Vector3.back, Vector3.back,
+                        Vector3.down, Vector3.down, Vector3.down, Vector3.down,
+                        Vector3.left, Vector3.left, Vector3.left, Vector3.left,
+                        Vector3.right, Vector3.right, Vector3.right, Vector3.right
+                    },
+                    uv = new[]
+                    {
+                        Vector2.zero, Vector2.right, Vector2.up, Vector2.one, Vector2.up, Vector2.one,
+                        Vector2.up, Vector2.one, Vector2.zero, Vector2.right, Vector2.zero, Vector2.right,
+                        Vector2.zero, Vector2.up, Vector2.one, Vector2.right, Vector2.zero, Vector2.up,
+                        Vector2.one, Vector2.right, Vector2.zero, Vector2.up, Vector2.one, Vector2.right
+                    },
+                };
+            }
+        }
+    }
+}