Hi all,

I am creating a version of Rally X, I have a grid of squares which represents the map. Each block can be represented by a specific element. When I started, I was drawing using only primitive routines, straight to the display. I then changed it so I created bitmaps per element in the game. I create and initialise these bitmaps in the class constructor which handles all things graphical. When I draw to the screen, I use al_set_target_bitmap(element pointer,x,y,0) each time an object is drawn. I pass the display pointer to the drawing class. This has caused major performance issues compared to drawing all primitives to the screen. The area being drawn is a small section of the larger map, probably a quarter of the screen.

Why is there such a change in performance? Should I be drawing each smaller block element to another larger bitmap and then displaying that on the screen....

Many thanks in advance.