So I’ve made a little progress…

It may be hard to see, but in the bottom left corner, there is a big block of plutonium(not accurately drawn I know). It emits the 3 types of radiation (alpha, beta, gamma). The blue/red one is alpha, green is beta, and the zig-zag purple one is gamma(which fades slowly but drains the framerate so badly, so expect it to change).

Also, the blocks block (get it?) the different types of radiation as they should do- i.e. the white blocks alpha, aluminium blocks alpha and beta, and the concrete blocks all.

Other note: the texture for concrete has changed as I have decided to change it to lead to differentiate it more from the aluminium block.

Good luck!