MeowTD Update V0.009

Changes

• Implemented a grid system for building, buggy and you can overlap buildings, etc, but I'll make it better as time goes on.

Bug fixes

• Fixed/changed the method for building towers, a tag system has been implemented into the code that decides if you can build in a position or not, primarily used to ignore colliders that have no baring on where a tower is built (the main previous issue being that the ray sent out from the camera view to the 3D world to determine if it was safe to build was hitting the sphere colliders around the towers and borkin' out). This is now fixed but it also allows for overlapping of towers now. There is a positioning script attached to the towers upon instantiating that will control things like this at a later date.