Connect 4

This is game #5 of my attempt of "The 20 Games Challenge".

Play Connect Four with your friends, with computer with adjustable difficulties, or just watch computers fight each other.

Controls:

• WASD or Arrow keys to navigate between buttons.
• Left click, Space or Enter to press buttons.
• Escape to exit to main menu or exit the game.
• Left click to drop down a piece.

Features:

• Select the number of players and difficulties of computers.
• Restart a game, or withdraw a piece if you regret.
• Ask for a hint to evaluate your position.

About the "impossible" difficulty: I ported a strong solver of the game (PascalPons/connect4: Connect 4 Solver) to Rust and shipped it together with this game. It really is nigh impossible to beat: if the computer goes first, expect to always lose; if you go first, play perfectly to force a win, or chances are you will lose all the same.