puzzle 15

Ok, this is just like the last puzzle, but you need to remember how you used the "if" block and the "repeat" block together.

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See these videos and hints

 

Maze Intro

If Block

Repeat Until Block

Blocks

 

Assemble your blocks here: 

9

  / 4

 

Show Code

 ▼turnright ↻ ▼repeat untildoif pathto the right ↻ ▼dorepeat untildoif pathahead ▼doif pathto the right ↻ ▼doturnright ↻ ▼if pathahead ▼domove forwardif pathto the right ↻ ▼domove forwardmove forwardRepeat the enclosed actions until finish point is reached.

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Congratulations! You completed Puzzle 15. (However, you could have used only 4 blocks.)

You just wrote 9 lines of code!

All-time total: 36 lines of code.

Even top universities teach block-based coding (e.g., Berkeley,Harvard). But under the hood, the blocks you have assembled can also be shown in JavaScript, the world's most widely used coding language:

while (notFinished()) {
  if (isPathForward()) {
    moveForward();
  }
  if (isPathRight()) {
    turnRight();
  }
  if (isPathForward()) {
    moveForward();
  }
  if (isPathRight()) {
    moveForward();
  }
}