a delete function for editing

[noob10293]

right now, in order to delete food, you must replace it with walls and clear all walls. there's no way to only delete some walls instead of all walls either. a similar problem exists in the organism creator(editor) where if you mess up drawing an organism, you have to clear it. making a brush that just draws empty space could be very useful

[noob10293]

never mind, it's right click to delete