The problem is that the DrawingCanvas object doesn't have an Arc-function. (I just added it to the feature requests.) That would probably be the easiest way, but isn't available for Construct3 (why??). It was available in Construct 2 and there's even a nice tutorial: https://www.construct.net/en/tutorials/draw-slices-dynamically-label-1295.
Some requirements for the arc/pie:
- Pixel-perfect alignment with backgroundpicture in the project.
- The pie must change every second because it's a kind of clock.
- iFrame and use the Arc function of the Canvas, but aligning the arc with the background picture and make this work on every platform and screen size seems to be very complex.
- I thought that maybe by using scripting, I could get the context of the DrawingCanvas and use that to draw the arc, but 'GetContext' isn't available as a method of the Drawing Canvas Script Interface.