Dev/pong - Pong Makeover

[ShaneBeee]

Describe your changes

This PR aims to give pong a little makeover.

Key Changes:

Gameplay

• Player vs CPU with arrow keys or scroll wheel to move your paddle
• Ball speed scales up during a rally and resets on each point
• Hit position physics — where on the paddle the ball lands affects angle and speed
• 3-2-1 countdown before each serve so you're never caught off guard
• Win condition — first to reach the target score wins (configurable)

AI Difficulty

• Easy — lazy AI that randomly zones out and drifts when the ball is moving away
• Medium — tracks the ball with a positional offset error
• Hard — predictive AI that simulates the ball's trajectory and waits where it will land

Visuals

• CRT-style neon aesthetic with scanlines, glow effects, and a dark background
• Animated splash screen with typewriter intro and bounce animation
• Neon paddles (cyan for player, magenta for CPU) and a yellow ball with a motion trail
• Trail colour shifts yellow → orange → red as rally speed increases
• Screen flash on score (cyan for player, magenta for CPU)
• Particle burst on paddle hit
• Red vignette pulses at screen edges when ball reaches max speed
• Live rally counter displayed on screen during play
• Custom dock icon drawn programmatically

Menus

• Splash screen with difficulty selector (Easy / Medium / Hard) and score-to-win selector (3 / 5 / 7 / 10)
• Pause menu with resume, quit, volume control, and stats reset
• Win/lose overlay showing final score and all-time record for the selected difficulty

Sound

• Synthesised sound effects with no external dependencies (paddle hit, wall bounce, scoring, win/lose, countdown, game start)
• Volume control and mute toggle from the pause menu

Persistence

• Win/loss record and best rally saved to ~/.skbee_pong_scores per difficulty level

Screenshots:

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Target Minecraft Versions: any
Requirements: none
Related Issues: none

Checklist before requesting a review

• Tests have been added if necessary
• I have read the contributing guidelines