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feat(pathfinding): Add Bidirectional BFS Algorithm - #95

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Sanan507 merged 2 commits into
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jules/issue-83-bidirectional-bfs-9736160048194643338
Aug 2, 2026
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feat(pathfinding): Add Bidirectional BFS Algorithm#95
Sanan507 merged 2 commits into
masterfrom
jules/issue-83-bidirectional-bfs-9736160048194643338

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@Sanan507

@Sanan507 Sanan507 commented Aug 2, 2026

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Closes #83

What

Added Bidirectional BFS to the pathfinding engine. It maintains a forward queue and a backward queue, and simultaneously expands two frontiers—meeting in the middle to halve search depth and explore fewer nodes.

Risk

Low risk. Pathfinding framework correctly integrated a new algorithm. It does not alter other existing features. Frontend correctly handles additional new algorithm.

Solution

  • Implemented BidirectionalBFSModel expanding and intercepting both queues.
  • Integrated custom VISITED_FORWARD, VISITED_BACKWARD, FRONTIER_FORWARD, FRONTIER_BACKWARD CellState states for visually distinguishing the two search ends.
  • Wired logic on frontend PathCanvas and comparison metrics to track paths.
  • Registered complexity and verified tests.

PR created automatically by Jules for task 9736160048194643338 started by @Sanan507

Co-authored-by: Sanan507 <227714367+Sanan507@users.noreply.github.com>
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Project Deployment Actions Updated (UTC)
algorithm-race-visualizer Ready Ready Preview Aug 2, 2026 5:20am

@Sanan507

Sanan507 commented Aug 2, 2026

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@jules cehck the code as frontend failed.

@Sanan507
Sanan507 merged commit b23bad7 into master Aug 2, 2026
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@Sanan507
Sanan507 deleted the jules/issue-83-bidirectional-bfs-9736160048194643338 branch August 2, 2026 06:48
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feat(pathfinding): Add Bidirectional BFS Algorithm

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