Hello I would like to know on how to get the position of a position object placed in the level editor.

And seccond, I have a model placed in the level editor and I want to use that model in my code so I gave it a action called startup which I defined in my main.c :

ENTITY* mainCharacter;

action startup()
{
mainCharacter = me
}

but that didn't work out so great. So what is the correct way of doing this ?

you missed a semi-colong, it should be:

mainCharacter = me;

Sorry thats just a copy paste error, I had that but whenever I start the game and try to access the mainCharacter it says : Script crash in main SYS but other then that it runs fine

Maybe a pointer, address problem at a string...
IMHO

Sorry, is this a solution or are you just thinking out loud xD?

Show the code where you access that pointer.

That was a solution based on my telepaty device, because i had to remotely decrypt your code.

I believe the problem is here

Found under Script Programming -> Functions

So name the action diffrent

muffel

Well sorry, I didn't think that it was necessary to provide the other code since I thought it had something to do with me just doing it all wrong but here is the full document : http://pastebin.com/CyNGkFYD

I also changed startup to characterStartup and it still does the same

Place
while(!mainCharacter) wait(1);
in line 28 before the first physX instruction. Even though the entities are loaded already, their actions will be run after your first wait(1) in the main function, thus the pointer is invalid when you try to access it.