wip: feat: simple pong game

[kienvo]

Resolves #102

Simple pong game to make use of the 2 top buttons.

Summary by Sourcery

Add a simple Pong game mode with basic paddle and ball rendering and a placeholder game loop.

New Features:

• Define paddle and ball data structures with positions and velocities
• Implement pong_init to set initial positions and velocities for paddle and ball
• Implement pong_render to draw the paddle and ball onto the framebuffer
• Integrate a Pong game loop into main, calling pong_update and pong_render

Enhancements:

• Add a stub pong_update function for future game logic

[sourcery-ai]

Reviewer's Guide

Implements a simple pong game by defining paddle and ball state, providing init/update/render routines, and temporarily integrating the game loop into main before returning to normal operation.

Class diagram for new Pong game structures

classDiagram
    class paddle_st {
        +uint8_t size
        +uint8_t pos_x
    }
    class ball_st {
        +uint8_t px
        +uint8_t py
        +uint8_t vx
        +uint8_t vy
    }

Loading

File-Level Changes

Change	Details	Files
Introduce game state structures and constants for paddle and ball	Add PADDLESZ constant Define paddle_st and ball_st structs Declare global paddle and ball variables	src/main.c
Implement pong game lifecycle functions	Create pong_init to set initial positions and velocities Stub pong_update for future game logic Create pong_render to clear framebuffer and draw paddle and ball	src/main.c
Integrate pong loop into main execution	Call pong_init after spawn_tasks Add game loop invoking pong_update, pong_render, and DelayMs Break on mode change and reset mode to NORMAL	src/main.c

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#102	Implement support for two buttons in Badge Magic firmware, ensuring integration with existing BLE and USB interfaces.	❌	The PR adds a simple pong game that appears to use the two top buttons, but there is no code in the diff that handles button input or demonstrates integration with BLE and USB interfaces. The code only initializes and renders the pong game, with no evidence of button handling or interface integration.

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