Unity将地形转换为网格贴合脚本

//Object to Terrain
@MenuItem ("Terrain/Object to Terrain")

static function Object2Terrain () {
    // See if a valid object is selected
    var obj = Selection.activeObject as GameObject;
    if (obj == null) { 
        EditorUtility.DisplayDialog("No object selected", "lease select an object.", "Cancel");
        return;
    }
    if (obj.GetComponent(MeshFilter) == null) {
        EditorUtility.DisplayDialog("No mesh selected", "lease select an object with a mesh.", "Cancel");
        return;
    }
    else if ((obj.GetComponent(MeshFilter) as MeshFilter).sharedMesh == null) {
        EditorUtility.DisplayDialog("No mesh selected", "lease select an object with a valid mesh.", "Cancel");
        return;  
    }
    if (Terrain.activeTerrain == null) {
        EditorUtility.DisplayDialog("No terrain found", "lease make sure a terrain exists.", "Cancel");
        return;
    }   
    var terrain = Terrain.activeTerrain.terrainData;
    
    // If there's no mesh collider, add one (and then remove it later when done)
    var addedCollider = false;
    var addedMesh = false;
    var objCollider = obj.collider as MeshCollider;
    if (objCollider == null) {
        objCollider = obj.AddComponent(MeshCollider);