Code snippet 13 - For multiplayer space invaders article

server.js

function startGameDataTicker() {}

function subscribeToPlayerInput(channelInstance, playerId) {}

function startDownwardMovement(playerId) {}

function finishGame(playerId) {}

function resetServerState() {}

function startShipAndBullets() {}

function startMovingPhysicsWorld() {}

function calcRandomVelocity() {}

function randomAvatarSelector() {}