Title screen: DrawTitleObjects

       Name: DrawTitleObjects                                        [Show more]
       Type: Subroutine
   Category: Title screen
    Summary: Draw an object on top of a tower on the title screen
    Context: See this subroutine in context in the source code
 References: This subroutine is called as follows:
             * DrawTitleView calls DrawTitleObjects


 Arguments:

   A                    The type of object to draw on top of a tower on the
                        right side of the screen:

                          * 0 to draw a robot for the secret code screen

                          * 5 to draw the Sentinel for the main title screen


.DrawTitleObjects

                        \ We start by drawing a robot or the Sentinel, according
                        \ to the object type in A

 LDY #1                 \ Set Y = 1 so the call to DrawTitleObject chooses the
                        \ configuration for the object standing on the tower in
                        \ the main title screen or secret code screen

 JSR DrawTitleObject    \ Draw an object of type A, so that's either a robot or
                        \ the Sentinel

                        \ We now draw the tower on which the robot or Sentinel
                        \ standing

 LDY #2                 \ Set Y = 2 so the call to DrawTitleObject chooses the
                        \ configuration for the tower on which the robot or
                        \ Sentinel is standing

 LDA #6                 \ Set A to 6, the object type for the Sentinel's tower,
                        \ so DrawTitleObject draws the tower

                        \ Fall through into DrawTitleObject to draw the tower
                        \ beneath the robot or the Sentinel