I looked around the forums for anything that could help me with this, but I couldn't find anything; sorry if there is already an existing thread.

A friend and I are trying to make ninja inspired mod and one of the cheapest things that we plan on having is the Shurikan and the Kunai. We thought it would be a good idea just to borrow the code from Ronin Stones and change some attributes, but when we changed the mass to 1 (kilogram), and max throw velocity to 95, all it does is look pretty, cut grass, and phase through enemies.

Could anybody tell us about what makes stone damage opponents, and how we can make these shurikans? Would we need to code a whole new thing?

The UniTec mod has throwing knifes and shurikens. They aren't really TDExplosives though, they are HDFirearms which simulate to be a shuriken being thrown, and they look very good.

Thanks! I also noticed that they have staffs, pretty close to some stuff im trying to make.

Remember not to copy the content, just use them as a base to learn. If you'd like to use them, ask permission to the author.