Main loop: MainLoop (Part 7 of 15)

       Name: MainLoop (Part 7 of 15)                                 [Show more]
       Type: Subroutine
   Category: Main loop
    Summary: Process the terminate key
  Deep dive: Program flow of the main game loop
    Context: See this subroutine in context in the source code
 References: No direct references to this subroutine in this source file


.main12

 LDA onGround           \ If onGround is zero, we are in the air and can't
 BEQ main13             \ terminate the game with the right arrow key, so jump
                        \ to main13 to skip the following

 LDX #&86               \ Scan the keyboard to see if the right arrow is being
 JSR ScanKeyboard       \ pressed

 BNE main13             \ If the right arrow is not being pressed, jump to
                        \ main13

 JSR TerminateGame      \ The right arrow is being pressed, which is the key to
                        \ terminate the game, so call TerminateGame to do
                        \ exactly that

 JMP NewGame            \ Jump to NewGame to start a new game