Hello. I am currently in the process of constructing my first minecraft adventure map and am having trouble preventing cheating in a minecart puzzle. The puzzle works great except the minecart tracks intersect at different heights, and it is possible to skip a large part of the map by jumping off a minecart platform onto a lower one. I'd rather not change the rail system i've built and the fall is not enough to kill.
So here's my question. Is it possible to increase the fall damage so it is deadly at 6-7 blocks? I have absolutely zero modding experience so if there is a mod out there for 1.7 which can add such a thing (which i havent found yet) it would be great if someone could lead me to one.
If not, is there a simple code i could use to implement such a thing (remembering im a modding noob).?