# BRIEFING — 2026-10-01T00:37:00Z

## Mission
Investigate the existing player character animation, combat feel, and control responsiveness in the FreeExile client codebase.

## 🔒 My Identity
- Archetype: teamwork_preview_explorer
- Roles: explorer, investigator, analyst
- Working directory: c:\Projects\FreeExile\.agents\teamwork\explorer_survey_anim_1
- Original parent: a47f1e48-2ddf-45d3-8179-86f630ec4561
- Milestone: Player Animation, Combat Feel, and Control Responsiveness Investigation

## 🔒 Key Constraints
- Read-only investigation — do NOT implement
- Scope: player character animation, dodge roll (Huyễn Ảnh Bộ) / i-frames, hit-stop mechanism, floating damage numbers, weapon swing variations in client/webapp
- Adhere to engineering standards (strict line limits <= 350/500 lines, 120 FPS budget, zero allocation in hot paths)
- Write handoff.md following 5-component handoff structure
- Output deliverables only to own directory

## Current Parent
- Conversation ID: a47f1e48-2ddf-45d3-8179-86f630ec4561
- Updated: not yet

## Investigation State
- **Explored paths**:
  * client/webapp/index.html
  * client/webapp/css/main.css
  * client/webapp/js/main.js
  * client/webapp/js/engine/entity_renderer.js
  * client/webapp/js/engine/animation_engine.js
  * client/webapp/js/engine/combat_skills.js
  * client/webapp/js/engine/monster_system.js
  * client/webapp/js/engine/vfx_renderer.js
  * client/webapp/js/engine/iso_math.js
  * client/webapp/js/engine/canvas_renderer.js
  * client/webapp/js/engine/collision_engine.js
  * client/webapp/js/engine/joystick.js
  * client/webapp/assets/animations/ (atlases and manifests)
- **Key findings**:
  1. Player render: Canvas 2D + sprite atlas with fallback standee; 6 animation clips in atlas, but all skills (Q, E, R) only use `attack_slash`.
  2. Huyễn Ảnh Bộ (dodge): 0.25s duration, 1.75x velocity boost, leaps low obstacles; i-frames checked exclusively in `executeMonsterAttackOnPlayer`; ghost trails allocate objects every frame and draw static standee.
  3. Hit handling: Projectiles travel 0.10-0.14s before calling `hitMonster`; ZERO hit-stop (frame freeze) exists in current code.
  4. Floating damage numbers: Plain object push and array splice, zero pooling, `scale` parameter ignored in renderer.
  5. Line limits: `combat_skills.js` (489 lines) & `monster_system.js` (496 lines) close to 500 hard cap. Weapon variations must be decoupled into `weapon_swing_catalog.js`, `weapon_swing_renderer.js`, and `combat_feel_engine.js`.
- **Unexplored areas**:
  * Native Swift Metal client pipeline (separate from WebApp).

## Key Decisions Made
- Deliver comprehensive 5-component report at `handoff.md`.
- Formulate modular architecture to respect strict file length caps (<= 350/500 lines).

## Artifact Index
- DISPATCH.md — Initial dispatch instruction log
- BRIEFING.md — Situational awareness working memory
- progress.md — Liveness heartbeat tracker
- handoff.md — Comprehensive handoff report