Drawing sprites: SetScreenForUpdate

       Name: SetScreenForUpdate                                      [Show more]
       Type: Subroutine
   Category: Drawing sprites
    Summary: Get the screen ready for updating by hiding all sprites, after
             fading the screen to black if we are changing view
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * BuyAndSellCargo calls SetScreenForUpdate
             * DEATH calls SetScreenForUpdate
             * EQSHP calls SetScreenForUpdate
             * SVE calls SetScreenForUpdate
             * TT23 calls SetScreenForUpdate
             * TT66 calls SetScreenForUpdate
             * UpdateViewWithFade calls SetScreenForUpdate


.SetScreenForUpdate

 LDA QQ11a              ; If QQ11 = QQ11a, then we are not currently changing
 CMP QQ11               ; view, so jump to HideMostSprites to hide all sprites
 BEQ HideMostSprites    ; except for sprite 0 and the icon bar pointer

                        ; Otherwise fall through into FadeAndHideSprites to fade
                        ; the screen to black and hide all the sprites