Unity and C#

Create a program where

-unity draws a game object wherever user clicks on the screen.

-It should read the X and Y of the mouse location.

-It should spawn 3D primitives from user input and destroy 3D primitives after a set time. (unless the user turns it off)

- User should be able to paint 3D objects on mouse click based on mouse location

- User should be able to change object color -

-User should be able to change object shape/type of primitive

-itch.io and give me link. (please)