Shouldn’t a hammer be required, and perhaps flags banned?
My hero keeps building fences after one has been built, wasting time. This can be solved using the
isPathClear function, but I don’t it’s likely that players that early will necessarily have access to it. Sometimes, a peasant comes at the same time as an ogre on a fire-trap location. (Also, it is hard to find a distance that keeps from building traps at the wrong place when an ogre is coming from a different direction, yet will still stop all coming ogres, even with the Ring of Speed. Could this be specified in the guide?) I finally beat the level with a rather complicated solution involving chain-lightning, the Ring of Speed, and
(I’ve submitted a patch to correct what is presumably an erroneous function in the guide.)