Feature/sound effects animations

[shyamstrategy]

Feature Overview
Feature Name: Single-Player Quiz Completion Celebrations Target SRS ID: Learning Experience & UI Polish
Author: Shyam Sundar Sharma @shyamstrategy

Problem
The Tenali platform featured an immersive audio and visual feedback system for correct answers, time warnings, and Live Battle victories. However, this celebratory feedback was absent from the standard single-player quiz modes. Upon completing a quiz and seeing the final score, the user was presented with a static result screen. This lack of positive reinforcement at the end of a learning session made the completion of a quiz feel abrupt and unrewarding, particularly for younger learners who thrive on continuous positive feedback.

Solution (Feature Description)
Extrapolated the successful celebratory mechanics from Live Battles to all single-player experiences without altering the core gameplay logic or layout.

Key additions include:

Universal Quiz Completion Hook: Created a reusable component that automatically mounts and executes celebratory animations and sounds.
Victory Fanfare Integration: The app now plays the triumphant 4-note ascending fanfare when a player finishes any single-player quiz.
Confetti Animation Integration: The final score screen now triggers a visual burst of confetti physics, creating a cohesive and rewarding end-of-session experience.
Platform-wide Support: The effect has been retrofitted into the "Quiz complete!" summary screen across all 25+ single-player quiz modes seamlessly.
The existing gameplay mechanics, scoring system, routing, and assessment engine remain unchanged.

User Interaction & Style
The completion of a learning session is now more interactive and immersive.

Upon answering the final question and transitioning to the results screen, a satisfying victory sound plays immediately.
A celebratory burst of confetti rains down over the final score summary.
Audio and animations work seamlessly alongside the existing score table without interrupting user interaction or requiring additional clicks.
Technical Implementation & Architecture
Frontend (React)

Implemented a lightweight, effect-driven component () that centralizes the logic for triggering sounds and visuals.
Inserted the new effect alongside the existing

Quiz complete!

JSX nodes across the platform.
Reused the existing native Web Audio API utility (playWinSound) and canvas-based confetti utility (triggerWinConfetti).
Architecture

The completion effect is modular, reusable, and cleanly decoupled from the quiz state logic.
Existing assessment engine, Live Battle logic, routing, and backend APIs remain completely unaffected.
Dependencies & Feature Mocking
Dependency Strategy: N/A

State/Function Mocking: N/A

Stacked PR: N/A

Mocking Details: N/A

Technical & Quality Checklist
SRS Alignment: Improves learner engagement through immersive audio and visual feedback upon task completion.
Metacognitive/Pedagogical Scaffolding: Reinforces positive learning outcomes using immediate sensory feedback and celebration.
Resource Optimisation (Audio): Audio assets are lightweight, synthesized via Web Audio API, and loaded efficiently without external media files.
Memory Management (Canvas): Confetti animations are properly cleaned up after completion.
State Persistence: Existing gameplay state, scores, and application logic remain unaffected.
Clean Code: Audio and animation utilities are modular, reusable, and isolated from core gameplay logic.
Documentation: Added Feature Overview for the new single-player feedback system.
Verification & Acceptance Criteria
Manual Validation Steps
Team Member 👍 Shyam Sundar Sharma : ssharma08550@gmail.com
Neeraj Agrawal : neerajagrawal689@gmail.com

Launch any single-player learning module (e.g., Addition, Multiplication, Vocabulary).
Answer the required number of questions to trigger the end of the quiz.
Verify that the "Quiz complete!" screen renders.
Verify that the victory fanfare plays correctly upon rendering the final screen.
Verify that the confetti animation is displayed accurately over the results table.
Verify all existing gameplay mechanics continue to function correctly.
Local Build & Tests
✅ npm run build completes successfully.

✅ Verified victory fanfare plays appropriately on the final score screen.

✅ Verified confetti animation displays correctly on the final score screen.

✅ Confirmed the effect applies universally to all relevant single-player modules.

✅ Confirmed no regressions in existing gameplay or assessment flows.

[jgupta05072003-code]

Hi — thank you for this contribution, and apologies for how long it has been waiting.

This PR currently conflicts with main on client/src/App.jsx. When you have a moment, could you please rebase onto the latest main? We are sequencing the PRs that touch this file (see #181 for the merge order and the reasoning), and unfortunately we cannot slot in a PR that will not merge cleanly — which is why this one has kept being passed over.

To be clear, the underlying problem is on our side, not yours. App.jsx is around 69,800 lines with no router, so every feature PR ends up editing the same few places and colliding with every other one. 21 open PRs are in the same position. We are fixing that properly, and #181 explains how.

If the rebase turns out to be painful or unmanageable, please just say so here and we will help you through it — we would much rather do that than leave your work sitting.

Thanks again for your patience.

[github-actions]

No description provided.

[jgupta05072003-code]

Thank you for this contribution.

We have not yet done a full review of this pull request, since it currently has a merge conflict with the main branch. Kindly pull the latest main branch into your branch and resolve the conflict at your end.

Also, we could not find a linked issue in the pull request description. Kindly link the issue this pull request is meant to resolve, using "Closes #N", so that it can be tracked properly. If there is no existing issue for this work, kindly open one describing the motivation before we proceed with a review.

Once the conflict is resolved and the issue is linked, we will proceed with a full review.

[github-actions]

⏳ This PR has had an unresolved merge conflict with the base branch for over 24 hours. If this isn't resolved within another 24 hours, this PR will be automatically closed — you're welcome to reopen once it's addressed, or resubmit fresh referencing the same issue.

[github-actions]

🔒 Closing this PR automatically: it has had an unresolved merge conflict with the base branch for over 48 hours. This isn't a judgment on the work — it's the 48-hour rule from the PR SOP, applied the same way to every PR. Fix the issue above and open a fresh PR referencing the same Closes #N whenever you're ready.