A design template for a generic Map Engine

Generic 2D Map Engine

Map(width, height)
    <MapLayer> layers
    <int[]> layerOffsets
    int width
    int height
    
    .addLayer(mapLayer, layerID)
    .removeLayer(layerID)
    .raiseLayer(layerID)
    .lowerLayer(layerID)
    .offsetLayer(layerID, x, y)
    .render(target, x, y, w, h, ox, oy)
    
    .loadFromFile(file)
    .saveToFile(file)
    
    MapLayer(layerData, sheet)
        LayerData data
        ImageSheet sheet
        
        .setData(layerData)
        .setSheet(imageSheet)
        
        LayerData
            int tiles[][]
            int tilesX
            int tilesY
            
            .loadFromFile(file)
            .saveToFile(file)
            .setTileAt(x, y)
            .getTileAt(x, y)
            .getCollisionAt(x, y)

ImageSheet(Image, tileWidth, tileHeight)
    int tileSizeX
    int tileSizeY
    int tilesX
    int tilesY
    int collision[][]  
    
    .setImage(image)
    .setGrid(x, y)   
    .getCollisionAt(x, y)
    .setCollisionAt(x, y)
    
    .drawTile(target, x, y)
    
    Image(file)
        .drawSubImage(x, y, w, h)