User design
Specifically for the user interaction, I design an instruction at the start of the game. Learning from my midterm project, where user did not know intuitively which button to press, I wrote a small instruction to let user know they could press any button to continue the experience. For the physical component, because the moveable box could not move out of the limits, I put a red tape to signify which area to move and which not to.
Schematic
The project uses 4 photoresistors for sensing position of the box and its size.
User testing video
User testing feedback
After letting my friends try out the game, most of them understood which button to press and that they could only move the box within the red line. However, the enlargement of the box during movement appeared too jittery and abrupt, making it difficult for users to associate their physical movements with the box on the screen. At this part, I need to step in to explain that the box is controlling the platform on the screen. The primary issue to address is the abrupt interaction, which is mainly caused by the photoresistor generating noisy values.