function gravity_()
{
    my_height = c_trace(my.x,vector(my.x,my.y,my.z - 1000),IGNORE_MODELS|IGNORE_FLAG2|IGNORE_PASSABLE|USE_BOX);
    if(my_height > 10)
    {
	accelerate(absdist.z,-10 * time_step,-1);
    }
    else 
    {
	absdist.z =-(my_height/1.2)+4;
	absdist.z = clamp(absdist.z,-4,4);
    }
}

action hero_()
{ 
   while(my.health > 0)
   {
     gravity_();
     /// c_move here and wait(1);
   }
}