How do I spawn a corpse in a closet when i open the door?

[flamez3]

Actually, I just noticed he said he wanted to have it when he opens the door himself.

void OnStart()
{
SetEntityPlayerInteractCallback("name_of_closet", "Spawn_Monster", true);
}

void Spawn_Monster(string &in asEntity)
{
SetEntityActive("Name_of_corpse", true);
}