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PaperBugs Puzzle "Waltz" (medium)
(feddit.org)
Game Description:
PaperBugs is a puzzle where you control bugs on a grid by writing a simple program. Each bug executes the same program step-by-step to reach their targets. The key challenge is that ALL bugs run the SAME program simultaneously!
Puzzle:
Available instructions:
- MOVE - move forward one cell
- LEFT / RIGHT - rotate 90 degrees
- IF FLOWER - execute next line only if flower ahead
- IF EMPTY - execute next line only if path clear
- IF WALL - execute next line only if wall ahead
- IF GEM - execute next line only if gem ahead
Board:
Legend:
- Flower (blocks movement)
- Gem (collectable)
- Wall (blocks movement)
Goal:
Write a single program that guides both bugs to collect gems and reach their targets safely.
Assuming LEFT means counterclockwise rotation, my solution would be:
MOVE
MOVE
MOVE
LEFT
IF FLOWER: RIGHT
RIGHT
RIGHT
IF FLOWER: LEFT
LEFT
MOVE -> should have reached the goal
That's how it would play out:
MOVE: MOVE: MOVE:
LEFT:
IF FLOWER: RIGHT
RIGHT
RIGHT
IF FLOWER: LEFT
LEFT
MOVE
No, that doesn't do the trick. But thanks for trying it out ;) Maybe want to give it another try?
If I understand your output correctly, you missed the two steps with the IF statements. Or rather, I wrongly wrote it directly after the IFs, since the instruction stated "the next line"
So here is the revised version:
MOVE
MOVE
MOVE
LEFT
IF FLOWER:
RIGHT
RIGHT
RIGHT
IF FLOWER:
lEFT
LEFT
MOVE -> should have reached the goal
Also, shouldn't they have collected the gems when walking over them?
You are right. My bad. Congratulations :)
Here the correct walk-through:
MOVE: MOVE: MOVE:
LEFT:
IF FLOWER: RIGHT
RIGHT
RIGHT
IF FLOWER: LEFT
LEFT
MOVE