Paths on a surface 
Game on the plane
Instructions
After choosing two paths, the goal is to continuously deform one path into the other.
On the vertical bar, below the figure, we can select the desired action to proceed:
- Choosing paths: We can move freely the marked points on the paths to determine their configurations, or we can choose, on the vertical bar at the right, one of the suggested paths.
- Start: Initial configuration of the game. If we choose the paths independently, a segment is added at the end up to the last common point.
- Play: Over one of the paths there are white marked points that we can manipulate. Drag the points to deform one path into the other.
- See deformation: A new vertical bar shows on the right of the paths where we can move a point, which controls the animation of a solution of the deformation of one path into the other.
