Drawing lines: BOMBEFF2

       Name: BOMBEFF2                                                [Show more]
       Type: Subroutine
   Category: Drawing lines
    Summary: Erase the energy bomb zig-zag lightning bolt, make the sound of
             the energy bomb going off, draw a new bolt and repeat four times
    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 BOMBEFF2


.BOMBEFF2

 JSR P%+3               \ This pair of JSRs runs the following code four times
 JSR BOMBEFF

.BOMBEFF

 LDY #sobomb            \ Call the NOISE routine with Y = 6 to make the sound of
 JSR NOISE              \ an energy bomb going off

 JSR BOMBOFF            \ Our energy bomb is going off, so call BOMBOFF to draw
                        \ the current zig-zag lightning bolt, which will erase
                        \ it from the screen

                        \ Fall through into BOMBON to set up and display a new
                        \ zig-zag lightning bolt