How can I make an effect like filling a cone with soft serve ice cream, or putting icing on a cake. I want to have the real icing effect shown in the https://twitter.com/D_M_Gregory/status/1248475917975867392?s=19 link.
In the game play scene there will be three buttons with different ice cream colors at the bottom, one icing machine at the top with three colors same of the buttons and an image displayed that is to be matched on the left corner.If a user press the yellow button the ice cream starts popping out from the yellow part of the machine and and if blue button is pressed blue cream start’s popping out and vice versa.The machine will fill up the cone in a circular manner. When the button is pressed the machine starts animating in a circular manner on top of the cone and if the user stops in between and than start again than the icing machine should start from the same position where it left. A bar on the top will show the complete percentage of the filling cone

When the cup or cone is filled and the level processing bar is completed than it will be checked at the end and given points according to the matched percentage.Like if the prepared cone matches 100 percent with the matched image than it will be given full points and if the color of the layers doesn’t match properly than points will be deducted according to the matching criteria.

(Animated example via this article)