GM: Local variables
From GMpedia.org Wiki
A local variable in Game Maker is a variable that concerns the object locally only. Built-in local variables concern the object in ways like scaling of sprite, position, etc.
[edit] Regular Local Variables (Not built in)
If an object that is called o_happy has this piece of code:
{
happy=6;
}
Then any other object could have the same variable - "happy" with another value; so each object has its own different "happy" value. For one object to access another, the object name is entered, followed by a dot, then the variable name, so that if o_sad wants to change o_happy's "happy" variable to 8, this piece of code is used:
{
o_happy.happy=8;
}

