No Sorry. Maybe I will Try and Explain again
The screen window in the browser is 800 by 600. The lay out is 3200 by 2400. This mean the lay out is 4 times longer and taller than the screen.
So to sole this the back ground scroll left and right and up down depending on the direction the character moves in.
The plkayer remains in the screen which means in effect the camera is attached to the player.
As the player moves close any edge of the layout the back ground continues to scroll. Instead of screen showing the edge of the layout or have the charge move from the center of the screen. The screen shows the right opposite side of the layout.
This is a feature in many retro style games. Defender (Arcade), Lunar JetMan (Spectrum) are examples of the horizontal scrolling wrap. There are 4 directional scrollong wrap.
As an example of the character move to a corner of the layout and was moving diagonally off the corner. At the point where the center of the center of the player was at the edge of the very layout.
The player would still appear in the center of the screen and all for corners of the layout would appear in the center of the screen taking up a quarter of the screen each one in the on the screen each.
If the back ground and object were on the lay out were placed correctly it would appear as if there was not edge and the layout was infinite in all for directions.
Please can some one help as this should be elementary feature.