Exemplo n.º 1
0
        List <Tilemap> allMaps; // including those without uninitialized tile data.

        public TileRef[] GetTiles(Rectangle screenRectangle)
        {
            Tilemap[] tileChunks;

            screenRectangle.X += CellWidth / 2;
            screenRectangle.Y += CellHeight / 2;

            Point topLeft     = new Point(screenRectangle.X, screenRectangle.Y);
            Point bottomRight = new Point(screenRectangle.Right, screenRectangle.Bottom);

            Tilemap topLeftChunk     = ScreenToChunk(topLeft, camera);
            Tilemap bottomRightChunk = ScreenToChunk(bottomRight, camera);

            int numberOfTiles = (screenRectangle.Width / CellWidth) * (screenRectangle.Height / CellHeight);

            if (topLeftChunk == bottomRightChunk)
            {
                tileChunks    = new Tilemap[1];
                tileChunks[0] = topLeftChunk;
            }
            else
            {
                int numberOfChunks = (screenRectangle.Width / SizeInPixels.X) * (screenRectangle.Height / SizeInPixels.Y);
                tileChunks = new Tilemap[numberOfChunks];

                Point currentChunk = new Point();
                int   chunk_i      = 0;
                for (int y = topLeft.Y; y < (bottomRight.Y - SizeInPixels.Y); y += SizeInPixels.Y)
                {
                    for (int x = topLeft.X; x < (bottomRight.X - SizeInPixels.X); x += SizeInPixels.X, chunk_i++)
                    {
                        currentChunk.X      = x;
                        currentChunk.Y      = y;
                        tileChunks[chunk_i] = ScreenToChunk(currentChunk, camera);
                    }
                }
            }

            TileRef[] returnTiles = new TileRef[numberOfTiles];

            int   i = 0;
            Point tileScreenCoords = Point.Zero;

            for (int y = screenRectangle.Y; y < (screenRectangle.Bottom - CellHeight); y += CellHeight)
            {
                for (int x = screenRectangle.X; x < (screenRectangle.Right - CellWidth); x += CellWidth, i++)
                {
                    tileScreenCoords.X = x;
                    tileScreenCoords.Y = y;

                    TileRef currentTileRef = ScreenToTileRef(tileScreenCoords);
                    returnTiles[i] = currentTileRef;
                }
            }

            return(returnTiles);
        }
Exemplo n.º 2
0
        public void SetTileGroup(TileRef[] tileRefs, int tileId)
        {
            for (int i = 0; i < tileRefs.Length; i++)
            {
                TileRef t = tileRefs[i];

                if (t.Chunk != null)
                {
                    int?index = t.Chunk.TileCoordinatesToTileIndex(t.TileCoordinates);

                    if (index.HasValue)
                    {
                        t.Chunk.Tiles[(int)index] = tileId;
                    }
                }
            }
        }
Exemplo n.º 3
0
        TileRef ScreenToTileRef(Point screenPosition)
        {
            TileRef tile = new TileRef();

            Tilemap chunk = ScreenToChunk(screenPosition, camera);

            if (chunk != null)
            {
                Point tileCoords  = chunk.ScreenToTileCoordinates(screenPosition, camera);
                Point chunkCoords = chunk.ChunkCoords;
                tile.Chunk            = chunk;
                tile.ChunkCoordinates = chunkCoords;
                tile.TileCoordinates  = tileCoords;
            }
            else
            {
                tile.Chunk = null;
            }
            return(tile);
        }