A dragon knight can jump from great heights without hurting himself so there are few hard terrain blockers, except the edges of the world and some specific areas where we blocked it to help the player, rather than constrain him (e.g. in areas where there is lava all around you, you don't necessarily want to fall off when engaged in very dynamic combat on a very narrow ledge or in the tutorial, you don't want to find yourself immediately dropping down from 3 kms)
