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docs(02-01): complete paddle2 and AI opponent plan

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- Create 02-01-SUMMARY.md with task commits, decisions, and dependency graph
- Update STATE.md: position at 02-02, add AI/difficulty decisions to context
- Update ROADMAP.md: Phase 2 in progress (1/2 plans)
- Mark REQUIREMENTS.md complete: CORE-08, AI-01, AI-02, AI-03, AI-04

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Dabit
2026-03-10 21:08:12 +01:00
parent 398bc4a20e
commit 836cb01ec8
4 changed files with 139 additions and 24 deletions
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33
.planning/STATE.md
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@@ -3,13 +3,13 @@ gsd_state_version: 1.0
milestone: v1.0
milestone_name: milestone
status: unknown
stopped_at: Phase 2 context gathered
last_updated: "2026-03-10T19:50:48.489Z"
stopped_at: Completed 02-01-PLAN.md
last_updated: "2026-03-10T20:07:22.163Z"
progress:
total_phases: 5
completed_phases: 1
total_plans: 2
completed_plans: 2
total_plans: 4
completed_plans: 3
---
# STATE: Super Pong Next Gen
@@ -25,13 +25,13 @@ progress:
| Attribute | Value |
|-----------|-------|
| **Phase** | 01-foundation |
| **Plan** | Plan 2/2 — COMPLETE |
| **Status** | Phase 01 complete — ball physics, wall bounce, zone deflection, speed increment, serve logic done |
| **Progress** | 10% (2/2 plans complete in Phase 1; Phase 1 of 5 complete) |
| **Phase** | 02-core-gameplay |
| **Plan** | Plan 1/2 — COMPLETE |
| **Status** | Phase 02 in progress — paddle2, AI module, predictive ray-cast, 3 difficulty levels done |
| **Progress** | 75% (3/4 plans complete; Phase 1 complete, Phase 2 plan 1 complete) |
```
[== ] 10% — Phase 1: Complete (2/2 plans)
[████████░░] 75% — Phase 2: 1/2 plans complete
```
---
@@ -48,6 +48,7 @@ progress:
| **01-02 Duration** | — | 1 min (2 tasks, 1 file) |
---
| Phase 02-core-gameplay P01 | 2min | 2 tasks | 1 files |
## Accumulated Context
@@ -83,6 +84,14 @@ progress:
10. **vx/vy recomputed from speed+angle each paddle hit:** Prevents compound rounding drift from repeated scaling; speed and direction always cleanly separated.
11. **AI uses predictive ray-cast with wall bounce simulation:** _predictBallY steps forward in time (up to 500 steps) simulating wall bounces — far more accurate than linear Y interpolation.
12. **AI difficulty presets as config objects:** { speed, reactionDelay, errorMargin } in GameConfig — all three dimensions of difficulty tunable without touching AI logic.
13. **AI waits when ball moves toward player (vx < 0):** Resets reaction timer and returns early — AI only acts when ball is heading toward its paddle, avoiding premature repositioning.
14. **Physics.onResize() calls init() for full reposition:** Ensures paddle2 (and paddle1) are properly repositioned on window resize rather than just updating width/height dimensions.
### Coverage Validation
**Total v1 Requirements:** 37
@@ -111,11 +120,11 @@ progress:
### What Just Happened
Phase 01 complete. Plan 01-02 executed: Ball physics added to index.html — ball serves from center at 220px/s in random direction, bounces off top/bottom walls, deflects off Player 1 paddle with 5-zone angle control (-60 to +60 degrees), and accelerates by 18px/s per paddle hit. On-canvas speed debug display confirms speed increments and resets. Requirements CORE-01, CORE-02, CORE-03, CORE-04 satisfied. All 6 Phase 1 success criteria met.
Phase 02 Plan 01 executed: paddle2 added to GameState (mirrors paddle1 structure), Input extended with ArrowUp/ArrowDown + named handler refs + cleanup(), AI module added with predictive ray-cast interception (wall-bounce simulation) and 3 difficulty presets (AI_EASY/MEDIUM/HARD). Physics._checkPaddle2Collision() added with 5-zone deflection sending ball LEFT. Physics.update() extended with paddle2 movement branch. Requirements CORE-08, AI-01, AI-02, AI-03, AI-04 satisfied.
### What Comes Next
1. Execute Phase 2 — Second paddle (Player 2 / AI), scoring system, ball tunneling safeguards
1. Execute Phase 2 Plan 02 — mode selection UI, scoring system, win/game-over states, ball tunneling safeguards
2. Continue through phases 3-5 after Phase 2 complete
### Known Blockers
@@ -128,7 +137,7 @@ None.
### Last Session
Stopped at: Phase 2 context gathered
Stopped at: Completed 02-01-PLAN.md
---