コード例 #1
0
    public void Rebuild(int sleepMs = 0)
    {
        if (!needRebuild)
        {
            return;
        }
        var parentMap = gameObject.GetComponentInParent <TestMap>();

        if (start.x < 0 || start.y < 0 || end.x < 0 || end.y < 0)
        {
            return;             // will cause fatal error
        }
        mapData = DDA.GetTilesBetween(start, end);

        if (mapData == null)
        {
            return;
        }
        float tileSize = parentMap.tileSize;

        if (thread != null && thread.IsAlive)
        {
            return;
        }

        thread = new Thread(() =>
        {
            Thread.Sleep(sleepMs);
            MeshDraft chunkMesh = new MeshDraft();
            int gameObjectCount = 0;
            foreach (var tile in mapData.tiles)
            {
                //if (!tile.seen) continue;
                MeshDraft tileMesh = parentMap.GetCachedTerMesh(tile.ter); // probably will not work in non main thread
                if (tileMesh != null)
                {
                    if (chunkMesh.vertexCount + tileMesh.vertexCount < 65000)
                    {
                        MeshDraft tileMeshCopy = tileMesh.Clone();
                        tileMeshCopy.Move(new Vector3((tile.loc.x - start.x) * tileSize, tile.loc.y * tileSize, (tile.loc.z - start.y) * tileSize));
                        chunkMesh.Add(tileMeshCopy);
                    }
                    else
                    {
                        AssignMesh(chunkMesh, "subchunk" + gameObjectCount.ToString("D2"));
                        gameObjectCount++;
                        chunkMesh = new MeshDraft();
                    }
                }
            }

            if (chunkMesh.vertexCount > 0 && gameObjectCount == 0)
            {
                AssignMesh(chunkMesh);
            }
            else if (chunkMesh.vertexCount > 0)
            {
                AssignMesh(chunkMesh, "subchunk" + gameObjectCount.ToString("D2"));
            }
        });
        thread.Start();
    }