Ping Pong Multiplayer game for M5stack Cardputer
CardPing Multi README
Multiplayer Pong for two M5 Cardputers sharing a Wi-Fi network. One hosts, the other joins; state sync rides over UDP so both displays stay in lockstep. Menus: Wi-Fi scan → enter/remember password → pick player name → choose Host/Join. Preferences persist SSID/password so reconnect is quick. Host flow: press H on Role Select, wait in lobby, Space serves/starts rounds, Esc toggles pause overlay, Q backs out to menus. Client flow: press J, device broadcasts join requests, host auto-acknowledges, lobby shows both names. Use ; and . (semicolon/dot) for paddle movement once match starts. Gameplay: first to 7 points wins. Ball accelerates slightly on every paddle hit. Host sim runs authoritative physics; client mirrors via state packets and sends paddle updates. Pause & game over: host Esc pauses and shares state so client sees overlay. On victory screen host can Space for rematch, both can Q to return to main menu. Networking: UDP port 41000 on local subnet, broadcasts when searching for hosts. Connection timeout (~4 s) drops back to error screen if packets stop. Controls summary: ; up / . down everywhere, Enter to confirm, Q (or Fn+Q in some menus) backs out, Fn+Tab toggles password mask, R rescans Wi-Fi, Space serves/rematches, Esc pause (host during play). Build/flash: pio run --environment m5stack-cardputer then pio run --target upload. Ensure both devices flashed with same firmware before hosting/joining.
Bugs >> -Esc doesn't pause the game.