adapt this code from the cari3 example. place it in the action of your player
Code:
vec_set (temp, my.x);
temp.z -= 1000;
trace_mode = ignore_me + ignore_passable + scan_texture;
trace (my.x, temp); // trace 1000 quants below the car
if (str_cmpi ("checker1", tex_name)) // if we've got the texture named "checker1" (without the quotes)
{
//change level function here
}
when your player toucches the texture checker1 or what ever you replace it with it will do what ever you want it to were i placed //change level here.
not sure about having to include all scripts and actions again though