Tile map drawer

public void drawMap(Graphics g, int cameraX, int cameraY){
    int tilesize = 16;

    int cameraOffsetX = 40; //Tiles to draw to left and right of camera.
    int cameraOffsetY = 20; //Tiles to draw above and below the camera.

    int startingPointX = Math.max(cameraX - cameraOffsetX, 0);
    int startingPointY = Math.max(cameraY - cameraOffsetY, 0);

    int stoppingPointX = Math.min(cameraX + cameraOffsetX, WIDTH);
    int stoppingPointY = Math.min(cameraY + cameraOffsetY, HEIGHT);

    for (int x = startingPointX; x < stoppingPointX; x++){
        for (int y = startingPointY; y < stoppingPointY; y++){
            g.setColor(Color.green);
            g.fillRect(x * tilesize, y * tilesize, tilesize, tilesize);
        }
    }
}