How to make a tool usable a few times
I wonder how I could make a tool disappear after being picked up and used. Let me explain it.
I’d like to create a GeoGebra applet (as a part of a construction activity). I want to use only selected tools. I know that I can customize the tool bar. Moreover, I’d like to use certain tool only a few times. For example, there is the tool “circle with center through point” on the tool bar of the applet and it is possible to use it just for one time. It means that if I use this tool, i.e. I draw a circle, I’m not able to use it any more, i.e. I can’t draw any other circle. And if I delete the circle, I can use the tool, I’m able to construct the circle...
I’m thinking about other functionality. Is it possible to force GeoGebra to construct some object while using certain sequence of tools? I mean this: Can I prepare an activity (applet) which can be solved by the use of (for example) “point”, “point”, “line segment”, “circle with center and radius”, “intersection”, “center or midpoint”, “perpendicular line”? How can I do that? Any idea?
Thanks a lot!