Mini Reaction Game

• Project Idea
• Development
• Architecture/Design
  • Layers
  • Game-Flow
• Game manual
  • 1. Game configuration
  • 2. The Game

Project Idea

Goal of the Project was the development of a mini game. The game is described below.

The following hardware of the STM32L476G-DISCOVERY Board is used:

• Joystick
  • up, down: configuration,
  • right, left: led flashing replication (green: right, red: left)
  • center: center is enter (it rhymes)
• LED (green and red) for flash sequence
• LCD Display: Arrow + State messages
• 3-axis magnetometer (lsm303c)
• Quad-SPI Flash memory (for storing calibration data)
• (UART2 for debug printline over serial connection)
• (for mobility: battery or Powerbank over USB)

Development

• For development the STM32Cube IDE is used
• To get a highlevel API the Board BSP from ST is used (see doc/bsp_guide.md)
• Debug Printouts on UART2:
  • can be activated via switch in Usercode/Utils/debug.h

  #define DEBUG_PRINT
  

  • Setting:
    • Baudrate: 9600
    • Databits: 8
    • Stopbits: 1
    • Parity: None

Architecture/Design

Layers

I tried to build up kind of a layered architecture, see below.

Game-Flow

Below you see the gameflow of the minigame. The states could be found in the statemachine in Usercode/minigame.c ->minigame_Run()

Game manual

1. Game configuration

• Configuration via joystick (selection), center is Enter, using LCD Display for output
• Optional: Calibration of the mems magnet sensor (30 sec. rotating)
  • You must fullfil at least one full flat rotation!
• Select player count 2 or 4 (rotation 90° or 180° ... limitation due display arrow)
• Select difficulty level (easy, medium, advanced, hardcore)
  • determing difficulty/length of the flash sequence (f.e.: easy - green, green, red)

2. The Game

1. The display shows Go
2. Player start: rotating that the board so that it's in front of u, display on top
3. Press Center Button
4. LEDs show a flash sequence Green + Red LED
5. Then an arrow on the LCD starts rotating
6. When the arrow stops it points to the next player (the display shows Rotate and full bars)
7. This player must now rotate the board so it's in front of him (see step 2.)
   • there is a timeout for doing this -> the bars on the display visualize this.
8. When the board is at the right angle it shows FLASH -> now the player should replicate the sequence with the joystick (see Step 4, timeout for this is 1.5 seconds/flash)
9. Verification:
   • If the user enter the sequence correct: the display shows "Victory".
   • If the user has failed: the display shows "You Failed"
10. Back to step 1.