Sprites: SPRITE4

       Name: SPRITE4                                                 [Show more]
       Type: Macro
   Category: Sprites
    Summary: Macro definition for a four-colour sprite pixel row
    Context: See this macro in context in the source code
 References: This macro is used as follows:
             * spritp uses SPRITE4


 This macro inserts three bytes of a four-colour sprite pixel row, with four
 pixels per byte (i.e. four pixels per character block).


 Arguments:

   pixel_row            A string containing a row of 12 pixels, where each pixel
                        is defined as follows:

                          * "/" denotes colour 1

                          * "*" denotes colour 2

                          * "@" denotes colour 3

                          * Anything else (e.g. ".") denotes colour 0


MACRO SPRITE4 pixel_row

 SPRITE4_BYTE MID$(pixel_row, 1, 4)
 SPRITE4_BYTE MID$(pixel_row, 5, 4)
 SPRITE4_BYTE MID$(pixel_row, 9, 4)

ENDMACRO