added check and warning if there are no terrains
added check and warning if there are no terrains

seanisom/vtp,seanisom/vtp,seanisom/vtp,markraz/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,markraz/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp,nakijun/vtp,nakijun/vtp