int xwin, ywin; int cameratracking, cameratracker;
xwin, ywin - The position of the camera in pixels.
cameratracking - Alters behaviour of the camera. (See below)
cameratracker - An entity index for the camera to follow, even if this entity isn't the player. (See below)
The camera variables are used to control where on the map the screen is looking. By default cameratracking is set to 1, which means the screen will follow the current player entity around as they move. The xwin and ywin hold the top left corner of the screen position in map (x, y) pixel coordinates, and will update to keep the player in the center of the screen on each Render().
Setting cameratracking to 0 turns off this behavior, so you can manually set the xwin and ywin values, and verge will abide by them.
Setting cameratracking to 2 makes the camera follow the target of the cameratracker instead, a reference to a valid entity index which you want the camera to follow.