Drawing and intersecting main shapes, time-travel
Pre-release
Pre-release
Only the finest, hand-crafted arcs have been selected for this release. You can practically smell the cedarwood shavings and linseed oil already!
Same input as before (LMB to start shape, LMB again for line segment, RMB for circle...), but now if you right-click-and-drag, you draw an arc (it currently always draws anticlockwise between the first and second points). Snapping and intersection also work for the arcs.
Additionally, I've implemented time-travel in both directions: you can undo (ctrl+z) and redo (ctrl+shift+z OR ctrl+y) as you like.