Global

Globals refer to variables that are accessible
and usually modifiable everywhere. If one object changes the variable,
other objects will see the new value.

Some globals are read-only, in which case they can be accessed, but not
modified. They are not constants, however, because their values may
change. mouse_x is an example of a read-only global. It changes every
time you move the mouse, and can be indirectly altered with functions
like and .

Global variables come in three types: predefined, global flagged, and
global dot access.

Predefined

Predefined globals are globals that are already defined and already
flagged as global without any additional effort from the user. This
means that you can say, for example, health -= 10 and it will work
as-is.

Below is an incomplete list of globals already defined by ENIGMA and GM:

• lives
• health
• score
• room[1]
• room_speed
• mouse_x[2]
• mouse_y[3]
• working_directory
• keyboard_string

<references></references>

[4]

Flag

//in one object
global myvar = 10;

//in another
myvar += 10; //myvar = 20

1.
2.
3.

1. Read-only variables. The value may change or vary, but you cannot
   directly alter the value.