The PrintDriverPrompt subroutine - Revs on the BBC Micro

       Name: PrintDriverPrompt                                       [Show more]
       Type: Subroutine
   Category: Text
    Summary: Print the "DRIVER ->" prompt and a driver's name, to show whose
             turn it is next when playing a multi-player game
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * MainLoop (Part 3 of 6) calls PrintDriverPrompt
             * MainLoop (Part 5 of 6) calls PrintDriverPrompt


.PrintDriverPrompt

 LDX #29                \ Print token 29, which clears the screen, displays the
 JSR PrintToken         \ F3 header, and shows a " DRIVER -> " prompt

 LDX currentPlayer      \ Set X to the driver number of the current player

 JSR GetDriverAddress   \ Set (Y A) to the address of driver X's name

 JSR PrintDriverName    \ Print the name of the driver at address (Y A)

 JSR WaitForSpace       \ Print a prompt and wait for SPACE to be pressed

 RTS                    \ Return from the subroutine

[X]

Subroutine GetDriverAddress (category: Text)

Get the address of the specified driver's name

[X]

Subroutine PrintDriverName (category: Text)

Print a driver's name

[X]

Subroutine PrintToken (category: Text)

Print a recursive token

[X]

Subroutine WaitForSpace (category: Keyboard)

Print a prompt, wait for the SPACE key to be released, and wait for SPACE to be pressed

[X]

Variable currentPlayer in workspace Zero page

The number of the current player