Drawing circles: LAUN

       Name: LAUN                                              [View in context]
       Type: Subroutine
   Category: Drawing circles
    Summary: Make the launch sound and draw the launch tunnel


 This is shown when launching from or docking with the space station.


.LAUN
{
 LDA #48                \ Call the NOISE routine with A = 48 to make the sound
 JSR NOISE              \ of the ship launching from the station

 LDA #8                 \ Set the step size for the hyperspace rings to 8, so
                        \ there are fewer sections in the rings and they are
                        \ quite polygonal (compared to the step size of 4 used
                        \ in the much rounder launch rings)

                        \ Fall through into HFS2 to draw the launch tunnel rings
}