void CreateMapFloor(Rect mapRect)
{
Mesh floorMesh = _floor.GetComponent <MeshFilter>().mesh;
floorMesh.Clear();
CustomMesh floorMeshData = new CustomMesh(Mathf.CeilToInt(mapRect.width) + 250, Mathf.CeilToInt(mapRect.height) + 250, Mathf.CeilToInt((10.0f / 500.0f) * Mathf.Max(mapRect.width, mapRect.height)), borderSize);
floorMeshData.Generate();
floorMesh.vertices = floorMeshData.getVertices();
floorMesh.triangles = floorMeshData.getTriangles();
floorMesh.uv = floorMeshData.getUVs();
MeshCollider floorCollider = _floor.AddComponent <MeshCollider>();
floorCollider.sharedMesh = floorMesh;
_floor.transform.position = new Vector3(mapRect.center.x - floorMeshData.width / 2, 0, mapRect.center.y - floorMeshData.height / 2);
}
