Workshop › Tetris-style Blocks › Step 32 of 32

Build it yourself: hold a piece

What we are doing

Your game, your rules. Add a hold: pressing C puts the falling piece aside and brings in another, once per piece.

Your turn

Keep the held shape in held (null when empty). C puts the falling piece aside: the first time the next piece comes in, later the held one comes back at the top, centred. Only once until the piece locks. Show Hold and the held piece in the panel.

Skills: Game states, Keyboard and mouse input

All steps

  1. The well
  2. The board as rows of numbers
  3. Draw one cell
  4. Draw the whole board
  5. The number is the color
  6. A piece is a small grid
  7. A list of shapes
  8. All seven pieces
  9. Does it fit inside the well?
  10. Blocks are in the way
  11. Try, then move
  12. Move with the arrows
  13. Turn a matrix
  14. Turn with Up
  15. Wall kicks
  16. Falling by itself
  17. A random piece at the top
  18. Land and lock
  19. One function starts a game
  20. When the pile reaches the top
  21. Game Over on screen
  22. Play again
  23. Clear full rows
  24. Points for lines
  25. The side panel
  26. Levels
  27. Faster every level
  28. A fair bag of pieces
  29. The next piece
  30. Drop it
  31. The ghost piece
  32. Build it yourself: hold a piece