Global Variables and Local Variables.

[Apjjm]

First, an overview:

Scripted Global variables:

• Are stored in the save file, and carry between ALL maps.
  
• Are used by using GetGlobalVar<Type> and SetGlobalVar<Type>
  
• Names are passed into the above functions as a string
  
• Default to 0 (or ""), and are created dynamically so can be used without an initialisation.
  

Scripted local vars

• Are stored in the save file, but only apply to one map.
  
• Are used by using GetLocalVar<Type> and SetLocalVar<Type>
  
• Names are passed into the above functions as a string
  
• Default to 0 (or ""), and are created dynamically so can be used without an initialisation.
  

Angelscript vars

• Defined by placing the type (e.g: int, string, float, uint) followed by an identifier.
  
• Are the stuff which can be passed into functions and the like
  
• Are not saved, or transferred between maps.
  
• The scope (I.e: how many {'s in it is) determines what can access it
  
• Must be defined before use.
  

So, how can we use each one?

Code: (Select All)

//Local vars
void RandomRoutine1()
{
   //Assignment
   SetLocalVarInt("variable_name",1234);
   SetLocalVarString("RandomVaraible_1","Yo dawg!");
  
   //Appending / adding
   AddLocalVarInt("variable_name",1);
   AddLocalVarString("RandomVaraible_1","I heard you like strings!");

   //Retreving
   int x = GetLocalVarInt("variable_name");
   string y = GetLocalVarString("RandomVaraible_1");

   //X now has the value 1235 (1234 + 1)
   //Y now has the value "Yo dawg!I heard you like strings!"
}

//Global vars work similarly. Take for example, using a score variable
//to chose which ending the player gets

void OnGameStart()
{
   SetGlobalVarInt("PlayerScore",1); //Initialise global score
  }

void somewhereOnAnylevel()
{
  AddGlobalVarInt("PlayerScore",1); //Add 1 to global score var
}

void somewhereAtEndOfGame()
{
   switch(GetGlobalVarInt("PlayerScore"))
     {
       case 0: {badEnding(); break;}
       case 1: {mediumEnding(); break;}
       case 2: {goodEnding(); break;}
       default: {hackerEnding();}
     }
}