With this function you can check whether a global scope variable exists or not. You supply the global variable name to check for as a string (see example code below) and the function will return true if a global variable with the given name exists or false otherwise.NOTE: This function is primarily for use with Compatibility Scripts for imported projects and the converted code for Drag and Drop actions.
|name||The name of the global variable to check for (as a string)|
if !variable_global_exists("enemy_num")) global.enemy_num = instance_number(obj_Enemey_Parent);
The above code will check to see if the global variable called "enemy_num" exists and if it does not it is created and set a value.