3D Game Programming for Kids, 2nd Edition

Bonus: Keeping Score

This is already a pretty impressive game. It looks cool and it’s challenging. So this is a fine stopping point. But if you’d like to add a bit more, here are some bonus features to add.

Time-Based Scoring

Let’s calculate the score like this: you get more points the quicker you finish, and you get bonus points if you can finish really quick. We can do this by adding another check in checkForGameOver().

function checkForGameOver() {
  if (raft.position.z > 9.8) {
    gameOver = true;
    scoreboard.stopTimer();
    scoreboard.message("You made it!");
  }

  if (scoreboard.getTime() > 60) {
    gameOver = true;
    scoreboard.stopTimer();
    scoreboard.message("Time's up. Too slow :(");
  }

  if (gameOver) {
    var