备份CatanBuilding瘦身独立工程

Assets/Scripts/UIExtend/MeshImage.cs

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+using System;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class MeshImage : Image
+{
+    private Vector2[] pos;
+    private Vector2[] uvs;
+
+    public int rotatePointIndex;
+    [SerializeField]
+    private bool isErrorReset;
+
+    public void SetPos(Vector2[] pos, bool referesh)
+    {
+        this.pos = pos;
+        this.uvs = SetUvs(pos);
+        if (referesh)
+        {
+            SetAllDirty();
+        }
+    }
+
+    public void SetSize(float width, float height, bool adaptPointToSize)
+    {
+        rectTransform.sizeDelta = new Vector2(width, height);
+        if (adaptPointToSize)
+        {
+            float minW = 9999;
+            float minH = 9999;
+            float maxW = -1;
+            float maxH = -1;
+            foreach (var po in pos)
+            {
+                if (po.x < minW)
+                {
+                    minW = po.x;
+                }
+
+                if (po.x > maxW)
+                {
+                    maxW = po.x;
+                }
+
+                if (po.y < minH)
+                {
+                    minH = po.y;
+                }
+
+                if (po.y > maxH)
+                {
+                    maxH = po.y;
+                }
+            }
+
+            float w = maxW - minW;
+            float h = maxH - minH;
+
+            float sw = w / width;
+            float sh = h / height;
+
+            float s = sw > sh ? sw : sh;
+            for (int i = 0; i < pos.Length; i++)
+            {
+                pos[i] /= s;
+            }
+
+            SetPos(pos, true);
+        }
+    }
+
+    public void SetRotatePointIndex(int index)
+    {
+        rotatePointIndex = index;
+    }
+
+
+    public Vector2[] GetPos()
+    {
+        return pos;
+    }
+
+    private Vector2[] SetUvs(Vector2[] tempPos)
+    {
+        Vector2[] tempUvs = new Vector2[tempPos.Length];
+        for (int i = 0; i < tempPos.Length; i++)
+        {
+            tempUvs[i] = new Vector2(tempPos[i].x / rectTransform.rect.width + 0.5f,
+                tempPos[i].y / rectTransform.rect.height + 0.5f);
+        }
+
+        return tempUvs;
+    }
+
+    protected override void OnPopulateMesh(VertexHelper vh)
+    {
+        Vector2[] tempPos = pos;
+        Vector2[] tempUvs = uvs;
+        if (tempPos == null)
+        {
+            base.OnPopulateMesh(vh);
+            return;
+        }
+
+        Color32 color32 = color;
+        vh.Clear();
+
+        try
+        {
+            for (int i = 0; i < tempPos.Length; i++)
+            {
+                vh.AddVert(tempPos[i], color32, tempUvs[i]);
+            }
+
+
+
+            Triangulator triangular = new Triangulator(tempPos); //计算三角面的类
+            int[] indices = triangular.Triangulate(); //得到三角面
+
+            for (int i = 0; i < indices.Length - 2; i += 3)
+            {
+                vh.AddTriangle(indices[i], indices[i + 1], indices[i + 2]);
+            }
+        }
+        catch (Exception e)
+        {
+            Debug.LogError(e.ToString());
+            base.OnPopulateMesh(vh);
+        }
+    }
+}