28.07.2011, 12:26
Macros can be words, which can be used to represent numbers - which in this case is what is being demonstrated. 'PLAYER_MARKERS_MODE_GLOBAL' is defined as 1 in 'a_samp.inc' (or 'a_players.inc'). Macros do a lot more, but I'm generally just helping you to understand what the macro is doing in this instance.