Workshop › Rhythm Lanes › Step 21 of 35

Perfect or good

What we are doing

"Hit" is not enough: players want to know how well they hit. Within PERFECT (4) frames it is Perfect, within GOOD (9) it is Good.

```js
const PERFECT = 4 // frames either side of the exact moment

  closest.hit = true
  if (off <= PERFECT) {
    judge('Perfect', '#fde047')
  } else {
    judge('Good', '#86efac')
  }
}
```

What it means

• <= means "less than or equal".
• if (...) { ... } else { ... } runs the first block when the condition is true, otherwise the else block. We only get here when off is at most GOOD, so else covers 5 to 9 frames.

Your turn

1. Above const GOOD = 9 write PERFECT.
2. In press, replace the judge('Hit', ...) line with the if ... else block.

Skills: Game states

← Let the message go Keep count →

All steps

1. A stage for the notes
2. The first lane
3. Four lanes with a loop
4. The hit line
5. A function that draws
6. The song as text
7. From text to notes
8. The clock decides where
9. Draw the notes
10. A clock that ticks
11. The game loop
12. Lanes that light up
13. Keys for the lanes
14. Show the keys
15. Hit the closest note
16. Close enough in time
17. One press, one hit
18. A message on the screen
19. Say Hit
20. Let the message go
21. Perfect or good
22. Keep count
23. Missed notes
24. Score
25. Hits in a row
26. The multiplier
27. The song ends
28. Stop the clock
29. Accuracy
30. The grade
31. The results
32. Play again
33. Best score
34. Lanes you can tap
35. Build it yourself: a speed setting