void player_update()
{	

	player.x+=v[0];
	player.z+=v[1];
	player.lx+=player.x;
	player.lz+=player.z;
		
	sengine_lookat(player.x, 
				   player.y, 
				   player.z, 
				   player.x+v[0], 
				   player.y+v[1], 
				   player.z+v[2]);
}