void InitWorldRect()
{
Vector2 worldCenter = BuildingGeoList.GetRerenceLeftBottomInMeters(); // worldRect center，墨卡托坐标
float tileSize = BuildingGeoList.tileSizeInMeters();
float worldRectX = worldCenter.x - tileSize * tileNum / 2;
float worldRectY = worldCenter.y - tileSize * tileNum / 2; // 左上角
worldRect = new Rect(worldRectX, worldRectY, tileSize * tileNum, tileSize * tileNum);
}
private void InitQuadTree()
{
InitWorldRect();
terrainRoot = new GameObject("terrain-root");
terrainRoot.transform.position = new Vector3(0, 0, 0);
terrainRoot.transform.localScale = Vector3.one * BuildingGeoList.GetWorldScaleFactor();
qTree = new CityQuadTree(worldRect, 0, null);
qTree.InitSearchTarget(new Rect(BuildingGeoList.GetRerenceRect().x, BuildingGeoList.GetRerenceRect().y, BuildingGeoList.GetRerenceRect().width + 100, BuildingGeoList.GetRerenceRect().height - 100), terrainRoot, planeMeshPrefab);
}
private void CreateMesh(GameObject root, GameObject planeMeshPrefab)
{
Vector2 referenceO = BuildingGeoList.GetReferenceCenterInMeters();
Vector3 position = new Vector3(this.nodeCenter.x - referenceO.x, 0, this.nodeCenter.y - referenceO.y);
//GameObject leafPlane = GameObject.CreatePrimitive(PrimitiveType.Plane);
GameObject leafPlane = GameObject.Instantiate(planeMeshPrefab);
leafPlane.name = "depth-" + this.currentDepth;
leafPlane.transform.position = position;
leafPlane.transform.localScale = (new Vector3(1, 0, 1)) * this.nodeSize * 0.1f; // 墨卡托坐标. 一个plan primitive本身的unity size是10*10
leafPlane.transform.SetParent(root.transform);
leafPlane.AddComponent <MeshCollider>().sharedMesh = leafPlane.GetComponent <MeshFilter>().mesh;
}
public void UpdateTerrain(Rect newRect)
{
//Debug.Log("terrain controller: update terrain");
qTree.UpdateSearchTarget(newRect, terrainRoot, planeMeshPrefab);
terrainRoot.transform.localScale = Vector3.one * BuildingGeoList.GetWorldScaleFactor(); // ?
}
