Drawing the screen: BOMBOFF

       Name: BOMBOFF                                                 [Show more]
       Type: Subroutine
   Category: Drawing the screen
    Summary: Switch off the energy bomb effect
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * Main flight loop (Part 13 of 16) calls BOMBOFF
             * RES2 calls BOMBOFF


 Returns:

   A                    A is set to 0


.BOMBOFF

 LDA #%11000000         ; Clear bit 4 of moonflower so the screen returns to
 STA moonflower         ; standard bitmap mode, so the space view goes back to
                        ; its normal monochrome, small-pixel appearance

 LDA #0                 ; Set welcome to 0 to stop the background colour from
 STA welcome            ; flashing different colours (as 0 represents black, and
                        ; the energy bomb flashes between black and the colour
                        ; in welcome)

 RTS                    ; Return from the subroutine