Workshop › Puzzle Bobble-style Bubble Shooter › Step 26 of 31

The danger line

What we are doing

The player should see the line bubbles must not cross, and after the game no more shots can be fired.

```js
if (state !== 'playing' || shot) return

ctx.fillStyle = 'rgba(239, 68, 68, 0.5)'
ctx.fillRect(0, DANGER, canvas.width, 2)
```

What it means

• shoot does nothing unless the game is being played (or while a bubble is still flying).
• The danger line is a 2-pixel red rectangle across the board.

Your turn

1. In shoot, change the first line to if (state !== 'playing' || shot) return.
2. In draw, under the ceiling, draw the danger line.

Skills: Game states, Drawing on a canvas

← Win or lose The end message →

All steps

1. The night sky
2. One bubble
3. A grid of cells
4. Draw the grid
5. Bubbles that nest
6. The shooter
7. Aim upwards
8. Turn with the arrows
9. Aim with the pointer
10. Fire!
11. Fly
12. Bounce off the walls
13. Touching something?
14. Stick into the grid
15. Smaller steps
16. Six neighbours
17. Flood fill
18. Three in a row pop
19. Bubbles that fall
20. Cut them loose
21. Show the score
22. Only useful colors
23. Count the shots
24. The ceiling comes down
25. Win or lose
26. The danger line
27. The end message
28. Play again
29. Best score
30. A dotted guide
31. Build it yourself: swap bubbles