I'm working on a small plugin. Amongst the many tasks involved, I need a player in a minecart to be able to left-click either the minecart or the "air" in a given direction and then start traveling in that direction if possible, similar to MinecartMania. In other words, I want to "launch" the minecart by having the player left-click. I can handle what happens to it after it starts moving. Any ideas? Sorry for the lack of source, but I haven't been able to figure how this would work... at all.