draw_background_part(back, left, top, width, height, x, y);
| Argument | Description | 
|---|---|
| back | The index of the background to draw. | 
| left | The x position on the background of the top left corner of the area to draw. | 
| top | The y position on the background of the top left corner of the area to draw. | 
| width | The width of the area to draw. | 
| height | The height of the area to draw. | 
| x | The x coordinate of where to draw the background. | 
| y | The y coordinate of where to draw the background. | 
Returns: N/A
With this function you can draw part of any background at a
given position within the room. As with draw_background you can specify
a background, but you then need to specify the relative
coordinates within the background of an area to select for
drawing. This means that a left position of 0 and a top position of
0 would be the top left corner of the background and all further
coordinates should be taken from that position.
draw_background_part(bck_Sky, 8, 8, 32, 32, x, y);
This will draw a 32x32 area 8px by 8px in from the top left of the background indexed in "bck_Sky", at the instances (x,y) position.