Get the layer angle

hello everybody

i can't find the layer angle expression help me :(

There's no layer angle expression yet.

The trick is to set a variable that will contain the angle of the layer and that the layer angle can be set to.

By default the angle is 0, so just create a global variable and use it.

I didn't find set_layer_angle(); satisfactory enough, because i already prearranged my level arbitrarily, without much planning just by intuition of the beginner. My whole level arrangement isn't really rotate-layer-centered. :)