Asteroids · mimo-v2.6-flash

Let me build the game. Single file index.html. Then run browser checks.

Let me write the file carefully.

Key features:
- Canvas game, vector graphics (asteroids polygons, ship triangle).
- Controls: Left/Right rotate, Up thrust, Space fire. Show controls on screen.
- Ship momentum + wrap; asteroids wrap.
- Large asteroids spawn moving; bullet hit splits large into smaller; smallest removed. Score.
- 3 lives; collision removes life, respawns ship with invulnerability brief.
- Wave clear -> next wave.
- Game over -> restart button resets score/lives/arena.
- Bullet lifetime bounded (TTL).
- Prevent page scroll for arrow keys/space.

Verification: test rotation, thrust, firing near spawn; sample scene to inspect wrapping when object crosses edge. I can use browser tools: inspect DOM/console, screenshot, motion. I could add a debug hook like window.__game state access to sample positions for wrapping test. That's helpful: expose `window.__asteroids` with state for verification.

Let me write the code.

Design:

```js
const W = canvas width (e.g., 900), H = 600
```

Ship: {x,y,vx,vy,angle,invuln}
Rotation speed ~3.5 rad/s? Use per-frame dt-based.

Bullets: {x,y,vx,vy,life} life decreases; max life ~1.1s; also max bullets on screen (e.g., 6) with cooldown.

Asteroids: sizes 3 (large), 2, 1 (small). radius 48/28/16. Split into 2 of size-1 with random velocity. Score: large 20, medium 50, small 100.

Spawning: wave n spawns 4 + n large asteroids at edges away from ship.

Ship collision: if not invuln and distance < shipR + astR -> lose life, explosion particles, respawn center with invuln 2.5s (blinking).

Invulnerability also on start of game (first spawn).

Game over at 0 lives -> overlay with score + Restart button.

Wave clear -> new wave after short delay, flash "WAVE n".

Rendering: starfield background (procedural, fixed stars), glow-ish strokes.

Screen wrap with margin: wrap(x) with margin for radius.

Also ship should wrap.

Controls display: HUD bar showing "← → Rotate · ↑ Thrust · Space Fire" plus score, lives, wave.

Prevent default: keydown for ArrowLeft/Right/Up, Space.

Keys state map.

Let me also handle game states: 'title'? Keep simple: starts playing immediately with 3 lives. Maybe a "GET READY" but not required. Start playing immediately.

Restart control: button in overlay; also press Enter/R to restart? Optional.

Let me write the code now.

Particles for explosions and thrust trail.

I'll expose window.__game = {ship, asteroids, bullets, score, lives, wave, state, keys} for verification and a helper `__sample()` returning positions.

Also maybe a test helper to force spawn asteroid at edge to test wrap — but wrapping test can be done by sampling the ship crossing edge: thrust up toward edge and watch x go beyond W then wrap. That takes time. Alternative: sample asteroids' positions over time and detect one crossing an edge. Simpler: I can set ship position near edge via the debug hook? That would be "cheating" but it's a verification aid. I could sample asteroid motion over a few seconds and find a wrap event. Large asteroids move slowly (~30-60 px/s), wrapping across 900px takes ~15s. Hmm.

Better: add debug API `window.__game.debug = { teleportShip(x,y), spawnAsteroid(x,y,vx,vy,size) }`? That modifies gameplay state but only via console calls. It's fine for verification. Actually simpler: use teleport to move ship just past edge and verify it wraps next frame. And spawn asteroid near edge with velocity to cross edge quickly, then sample positions across frames to observe wrap.

Alternatively use motion frames from browser tool. The browser tool has "motion" action. Let's just use inspect to read window.__game state samples.

Plan verification:
1. Reload, inspect console for errors.
2. Screenshot initial.
3. Press ArrowUp/ArrowLeft/Space via browser key actions; inspect ship angle/vx/vy/bullets.
4. Wrap test: use JS eval? The browser tool doesn't have arbitrary eval... "inspect" action probably returns DOM/console. Let's see what inspect gives. It might allow querying. Hmm, I can't eval arbitrary JS directly maybe. I could add a debug HUD element in the page that displays live state (x,y,angle,vx,vy,bullet count) — then screenshot/inspect reads it. That's a nice approach: a small debug readout panel (toggleable, e.g., `?debug=1` or always visible small). I'll show a small debug line in the HUD area showing ship x,y,angle,vx,vy, bullets — helps verification via screenshot.

For wrapping: teleport isn't possible without eval. Alternative: spawn test — I can add keyboard debug keys? Adding debug keys like "W" to warp ship to edge? Hmm, might be considered extra. Could add a hidden debug triggered by URL param `?debug=1` enabling keys: `T` teleports ship to right edge, `G` spawns asteroid at left edge moving right... Then verification via screenshots showing wrap.

Simpler: Since asteroids spawn at edges (away from ship), one of them will cross an edge within a few seconds? They spawn inside near edge and move inward typically... they spawn at random edge positions and move in random-ish direction, so crossing an edge happens if they move outward. With margin wrapping, an asteroid spawned at edge moving outward wraps quickly. Hmm, spawn velocity: I'll spawn at random position on the boundary ring with velocity directed mostly inward but with random angle ±60°, so some move outward and cross edge in a couple seconds.

Actually the simplest robust check: sample the debug readout over time via repeated screenshots/inspects and catch a wrap. With 4-5 large asteroids at ~40-90 px/s, and edge spawns, wrap events within 10s likely.

But sampling at, say, 1s intervals may miss. Better: keep a wrap-event log in the debug panel: "last wrap: ship/asteroid#2 x: -12 → 893". That directly proves wrapping. Add to debug panel: wrap counter and last wrap event string. Then screenshot after some seconds. That's a clean verification. Also I can force ship to edge... with debug key maybe. Let's include a debug key toggle: press `D` to toggle debug panel? Make debug panel always on but subtle? I'll show it when `location.hash === '#debug'` or always. Simplest: always show a compact debug strip (it also helps me verify). Could be seen as clutter but fine.

Actually let's make debug panel toggled by pressing `D` (and also shown if hash debug). For verification I press D. Hmm but if hash-based, I can reload with #debug. Screenshots show it. Let's do: shown by default? I'll make it default on but tiny and dim, toggled with D. Fine.

Also for wrap verification of the ship crossing an edge: I can thrust the ship toward an edge; with momentum it takes a few seconds to cross 900px. Ship thrust accel ~ 260 px/s², drag small (asteroids-style has no drag, or tiny). Ship reaches high speed: after 2s ~500px/s. If I thrust toward right edge for 1s then release, ship continues and crosses edge in ~1-2s. Direction control: initial angle points up (-90°). I can rotate right ~90° then thrust. That's feasible: press ArrowRight for ~0.5s (rotation 3 rad/s → 0.4s ≈ 1.2 rad = 70°). Then hold ArrowUp ~1s, release, wait, sample debug for ship wrap event.

The browser key action: does it hold keys down or tap? Probably a keypress event. If it only dispatches keydown/keyup quickly, holding won't work. I may need to check. Perhaps use "type" or repeated "key" presses to accumulate rotation and thrust (each tap adds impulse if I implement thrust per keydown? No, thrust should be continuous while held).

Alternative: implement key handling with keydown setting key true, and if key events fire as press+release quickly, ship barely moves. To make verification feasible, I can also support touch/click buttons? Not required.

Let me first test the browser tool's key behavior with a quick page. I'll write the game, then experiment.

Also for firing: tapping Space should emit a bullet; if keydown fires once per press, fine.

For rotation: each keydown could apply rotation increment — but if browser holds key (auto-repeat), we'd get continuous. Standard game loop uses key state polled each frame. If tool's key action sends keydown+keyup, ship rotation = 0 unless auto-repeat. Let's test.

I could add a fallback: on keydown for rotation keys, apply an immediate small rotation impulse (e.g., 0.15 rad) in addition to continuous rotation while held. That makes single taps meaningful. Slight but acceptable. Similarly thrust keydown applies an immediate small velocity kick along heading. Space fires on keydown anyway (typical). This improves playability for tap-style input too.

Hmm, but with auto-repeat during real key holding, immediate impulse per keydown adds extra — auto-repeat rate ~30/s → extra thrust. Could make thrust too strong if I add impulse on every keydown including repeats. I can guard: only apply impulse if not already held (i.e., first keydown). That gives: first press gives small kick + continuous while held. Taps give kick only. Good compromise.

Let's do that: on keydown (if !keys[k]) → apply one-time "tap impulse" for rotate (0.25 rad) and thrust (60 px/s). Hmm, real players holding would get kick once at start — imperceptible-ish (60px/s). Fine.

Now write the code.

Structure:

```html
<!doctype html>
<html>
<head><meta charset><title>Asteroids</title><style>...</style></head>
<body>
<div id="app">
  <header> title, score/lives/wave HUD, controls hint </header>
  <div id="stage"><canvas id="game" width="960" height="600"></canvas>
    <div id="overlay"> game over / restart </div>
  </div>
  <div id="debug"></div>
</div>
<script>...</script>
</body>
```

Canvas 960x600, responsive scaling via CSS (max-width 100%), keep internal resolution fixed for simplicity; use CSS to fit. Mouse coords not needed.

Game code details:

```js
const cvs=document.getElementById('game'), ctx=cvs.getContext('2d');
const W=cvs.width, H=cvs.height;
const TAU=Math.PI*2;
function rand(a,b){return a+Math.random()*(b-a)}
function wrap(v,size){ if(v< -size) v+= size*2 ... }
```

Wrap function with margin: 
```js
function wrapPos(o, r){
  if(o.x < -r) o.x += W+2*r; else if(o.x > W+r) o.x -= W+2*r;
  ...
}
```
Wrap event detection: compare before/after: if x changed by > W/2 → wrap event.

Ship: r=12, acc=320 px/s², rot=3.6 rad/s, drag = 0.999? Classic asteroids: no drag. I'll use none (retain momentum as required). Maybe tiny friction 0.995 per frame? "retains momentum" — no drag is fine and required behavior says retains momentum. Use no drag but cap speed at 520.

Bullets: speed 540 + ship velocity component, life 1.05s, r=2.5, max 8 concurrent, cooldown 0.13s.

Asteroid shapes: generate irregular polygon vertices at creation: n = 9..12 points, radius jitter 0.7..1.3. Draw with stroke, no fill (or subtle dark fill).

Sizes: 3 large r=46, 2 medium r=27, 1 small r=15.

Asteroid speed: large 30..70, smaller faster.

Split: on hit size>1 → spawn 2 size-1... actually size-1 of that: size 3 → two size 2; size 2 → two size 1; size 1 → removed. Standard.

Score: 3→20, 2→50, 1→100.

Collision: circle-circle ship vs asteroid (maybe ship as small circle r=10).

Lives: 3. On collision: lives--, explosion particles, if lives<=0 → game over else respawn at center (if center occupied? just respawn with invuln 2.5s, also brief freeze 0.8s "READY"). Keep simple: respawn immediately with invuln 2.5s blinking.

Wave: when asteroids empty → wave++, flash "WAVE N", spawn after 1.5s delay: count = 3 + wave (cap 12? cap 10). Spawn positions: random edge, at least 200px from ship.

Also new game resets everything.

Restart button: `<button id="restart">Restart</button>` inside overlay, hidden unless gameover. Clicking → reset. Also Enter/R key when gameover.

Prevent scrolling: keydown handler preventDefault for ArrowUp/Down/Left/Right/Space (and maybe ''). Also prevent space scrolling when focus in button? Space on focused button triggers click — for restart that's fine (also fires restart). But if space triggers button click while game running... button is hidden during game. OK. Also prevent space default globally.

HUD: Score, Lives (draw as small ship glyphs or "▲▲▲"), Wave.

Controls display: "◀ ▶ Rotate · ▲ Thrust · Space Fire · D Debug".

Thrust flame drawn when thrusting.

Particles: explosion sparks, thrust trail, with life.

Star background: generate 140 stars with twinkle.

Screen shake on death? Optional light.

Debug panel: shows ship x,y,angle,vx,vy; bullets count; asteroids count; last wrap event; wrap count. Updated each frame (throttle to every 6 frames to avoid layout cost... fine each frame with textContent).

Overlay for game over: absolutely positioned over canvas, with score, Restart button. Also wave banner drawn on canvas.

Now write it.

Let me write full code.

```js
'use strict';
const cvs = document.getElementById('game');
const ctx = cvs.getContext('2d');
const W = cvs.width, H = cvs.height;
const TAU = Math.PI*2;

const state = {
  mode:'playing', // 'playing' | 'over'
  score:0, lives:3, wave:1,
  ship:null, asteroids:[], bullets:[], particles:[], stars:[],
  fireCooldown:0, respawnDelay:0, waveDelay:0, wrapCount:0, lastWrap:'',
  keys:{}, message:'', messageTimer:0, shake:0
};
```

Ship object: {x,y,vx,vy,angle,invuln,thrusting,alive}

Spawn functions.

Key handling:

```js
const KEYMAP = {ArrowLeft:'left',ArrowRight:'right',ArrowUp:'thrust',Space:'fire'};
window.addEventListener('keydown', e=>{
  const a = KEYMAP[e.code];
  if(a || e.code==='Space') e.preventDefault();
  if(state.mode==='over'){ if(e.code==='Enter'||e.code==='KeyR'){restart();} }
  if(!a) return;
  if(e.repeat) { state.keys[a]=true; return; }
  if(!state.keys[a]) tapImpulse(a);
  state.keys[a]=true;
  if(a==='fire') tryFire();
});
```

Hmm, if not repeat and keys[a] already true (weird), skip. tapImpulse: left → angle -= 0.22; right → angle += 0.22 (wrap angle); thrust → velocity += cos/sin*70.

Also fire: hold space should auto-fire with cooldown — handle in update: if keys.fire && fireCooldown<=0 → fire.

tryFire sets cooldown.

fire():
```js
function fire(){
  if(state.bullets.length>=8) return; // limit
  const s=state.ship;
  const dx=Math.cos(s.angle), dy=Math.sin(s.angle);
  state.bullets.push({x:s.x+dx*14, y:s.y+dy*14, vx:s.vx+dx*560, vy:s.vy+dy*560, life:1.05, r:2.5});
  state.fireCooldown=0.14;
  // muzzle flash particles
}
```

Wait bullets limit check with cooldown is fine.

Update loop with dt from rAF, clamped to 0.05.

Update ship: rotation from keys, thrust accel, integrate, wrap with log.

Wrap logging:
```js
function wrapObj(o, r, label){
  const ox=o.x, oy=o.y;
  if(o.x < -r) o.x = W + r + (o.x + r);  // simpler: o.x += W+2r
  ...
}
```
Use: 
```js
if(o.x < -r){o.x += W+2*r;} else if(o.x > W+r){o.x -= W+2*r;}
```
Detect: if(Math.abs(o.x-ox) > W*0.5) → wrap event in x. Record `${label} x: ${ox.toFixed(0)} → ${o.x.toFixed(0)}`.

Increment wrapCount, set lastWrap, with timestamp maybe. Show "3.2s ago"? Keep simple: store time and update display.

Collision detection loops.

Explosion: 
```js
function explode(x,y,color,n,speed){...}
```

Ship destroyed: create particles, ship.alive=false? Requirement: collision removes life, respawns ship. I'll set respawn timer 1.0s where ship not drawn, then respawn at center with invuln 2.6s. During respawn, game continues (asteroids move). That's classic.

Game over: mode='over', show overlay, stop ship input (still update asteroids/particles? freeze is fine; I'll keep updating asteroids/particles but no ship).

Actually freeze everything on game over except particles for nicer look? Simpler: keep updating asteroids and particles, no ship, no collisions.

Restart: reset score=0,lives=3,wave=1, clear arrays, spawn ship + wave asteroids, hide overlay.

Initial: stars, ship at center, spawn wave 1 asteroids (4).

Spawn asteroid away from ship:
```js
function spawnLarge远离中心
let x,y;
do{ edge random } while(dist to ship < 220)
```
Edge spawn: pick side 0..3, position along that side, then nudge inside by r.

Velocity: angle toward generally inward ± randomness: compute angle from spawn point to center plus rand(-1.2,1.2).

Wave spawn count = Math.min(3+wave, 11).

Wave clear: waveDelay=1.6, message "WAVE {next}" shown when spawning.

Draw order: stars (bg fill), asteroids, bullets, ship, particles, HUD banner.

Rendering style: neon vector: ctx.strokeStyle with lineWidth 2, glow via shadowBlur maybe costly but fine (shadowBlur each draw for many objects can be slow-ish but at these counts OK). I'll use shadowBlur modest (8) for ship/bullets/asteroids. 960x600 with maybe 15 objects — fine.

Draw ship path: triangle with notch: points (14,0),(-10,-9),(-6,0),(-10,9). Thrust flame when thrusting: flicker triangle at back.

Lives display: draw small ship icons in HUD (HTML). I'll render HUD in HTML with spans updated each frame.

Debug panel HTML:
```html
<div id="debug" class="hidden">...</div>
```
Toggle with D.

Let me write everything now.

Also "Show the controls" — visible control legend under HUD.

Responsive: canvas CSS width 100%, height auto, image-rendering auto fine.

Write file.

Then browser test:
- reload, inspect console errors, screenshot.
- press ArrowLeft a few times → check debug panel angle changed (screenshot).
- press ArrowUp → vx/vy nonzero.
- press Space → bullets count > 0 (and bullet visible).
- wrap: thrust toward an edge, wait, check wrap log mentions ship.
- Also asteroid wrap: wait and check wrap log.

To reliably test ship wrap quickly, I can thrust repeatedly with taps toward right edge; each tap gives rotation impulse... hmm tapping ArrowRight rotates 0.22 rad each; need ~1.57 rad → 7 taps to face right. Then tap ArrowUp several times to gain speed (each tap +70 px/s → 6 taps = 420 px/s). Then ship crosses 960px in ~2.5s. Then debug shows wrap event. Feasible but many key actions. Alternatively hold keys if the tool supports holding (probably not).

Alternatively rotate to face right by tapping ArrowRight ~7 times and thrust — but taps cost many actions. Let's check if there's a way to hold: maybe the `key` action with a `text`? Unknown. I'll experiment.

Maybe simpler: for ship wrap test, face down/up? Ship starts facing up (angle -PI/2). Tapping ArrowUp ~5 times gives vy ≈ -350 → crosses top edge in ~1.5-2s from center (300px). That's fewer actions: 5 ArrowUp taps then wait and sample. And ship starts at center (480,300), so travel 300+r to cross top. Good — test wrap at top edge first.

But wait: tapping thrust gives impulse only on first keydown per press; each press is a new press → impulse each time. Good, +70 each.

But tapping also may rotate? no.

However during waiting, asteroids might collide with ship — invuln at start is ~2.5s; collisions could occur. Risk acceptable; if ship dies, retry.

Also to verify rotation: tap ArrowLeft → angle changes by 0.22 (debug shows angle before/after).

Let me also expose numbers in debug DOM with ids for easy reading? inspect returns DOM text presumably; I'll format as text.

Let's write the file now.

Overlay game over also needs Restart control — button. Also restart via Enter/R.

Also handle canvas focus: window key listeners — ensure body not scrolled: preventDefault on arrows/space. Also `overflow-x` etc. Add `html,body{overflow:hidden? }` maybe not hidden vertically; the page fits. Use `body{margin:0}` and prevent default keys.

Time to write.

Particles update: p.life -= dt; p.x += vx*dt; draw as small lines/dots.

Thrust particles: spawn each frame while thrusting: at back of ship, velocity opposite heading plus ship velocity, life 0.4, color orange/yellow.

Let me write the final code.

Also HUD update function.

Let me write:

```js
function updateHUD(){
  scoreEl.textContent = state.score;
  waveEl.textContent = state.wave;
  livesEl.innerHTML = ''; // draw spans
  for(let i=0;i<state.lives;i++) livesEl.appendChild(...)  // creating each frame is wasteful; do simple: text '▲'.repeat? 
}
```
Use textContent with '▲'.repeat(lives) — but styling with color. Simple: `<span class="life">▲</span>`... textContent '▲▲▲' with color cyan, letter-spacing. Good.

Debug update every frame textContent.

Now the debug panel content:

```
ship x=480.0 y=120.0 θ=-1.57 vx=0 vy=-352
bullets=2 asteroids=4 wraps=1
last wrap: ship top y: -14 → 596 (0.8s ago)
```

Store lastWrap = {label, text, t}.

Also debug should show keys held? Not necessary.

Let's write the file.

I'll be careful with the fire key: 'Space' code. Also prevent scroll.

Now code for splitting asteroids with proper positions.

```js
function splitAsteroid(a, idx){
  state.asteroids.splice(idx,1);
  addScore(points[a.size]);
  if(a.size>1){
    for(let i=0;i<2;i++){
      makeAsteroid(a.size-1, a.x, a.y, drift velocity)
    }
  }
  explode(...)
}
```

makeAsteroid(size,x,y,vx?,vy?) builds shape points.

Shape generation independent of size (relative jitter).

Asteroid speeds by size: base rand(40,80) for large, +25 per smaller size.

Write now. Also wrap asteroids with radius margin and log wrap (limit logging frequency: log only ship wraps? Requirement: "Sample the scene to inspect screen wrapping when an object crosses an edge." Log both, but to avoid spam maybe keep last event only. Keep count + last event.)

Actually maybe log last 3 events. Keep last event plus count.

Let me produce the file.

Also, ensure game loop uses requestAnimationFrame and handles canvas resizing? Fixed internal size, CSS scales. Fine.

Edge case: prevent focus scroll when pressing space with button focused — button hidden when playing.

Write it.

I'll now compose index.html.

For debug default: show debug panel only if hash includes 'debug' OR toggled by D. I'll default hidden, press D. For verification screenshots I'll press D (a key action).

Hmm, D key: fine.

Let me write the code.

Also add wave banner message drawn on canvas: state.message, state.messageTimer.

Respawn logic:
```js
if(!s.alive){ s.respawnTimer -= dt; if(<=0) respawn(); }
```

Initial ship invuln 2.5.

Collision check: skip if !alive or invuln>0.

Ship vs asteroid: dist < a.r + 9.

After collision: lives--; shake=10; explode; ship.alive=false; respawnTimer=1.0; if lives<=0 → gameOver() (mode over, show overlay). In gameOver also keep ship dead.

Restart resets all.

Asteroid-asteroid collision ignored.

Bullets vs asteroids: loop backwards.

Also bullet TTL: life -= dt; remove when <=0 → bounded lifetime. Good.

Now let's write.

One more: "prevent gameplay keys from scrolling the page" — also add `touch-action:none` irrelevant. And preventDefault for Space always.

Write file.

Also show controls text: 
"◀ ▶ Rotate   ▲ Thrust   Space Fire   D Debug" and "Enter/R Restart".

Let's write it.

Now run in browser and inspect.

The game renders. Ship at center with invuln ring, 4 asteroids (wave 1 spawns 3+1=4), controls shown, HUD shows score/lives/wave. No console errors.

Now enable debug overlay (press D) and test rotation/thrust/firing.

Debug overlay is on and already shows an asteroid wrap event: "ast(3) y -47 -> 645" — screen wrapping works for asteroids.

Note: the ship's invuln is 0.0s already — invuln expires after 2.6s; some time passed. Ship x=480,y=300, angle=-1.57 (facing up), vx=vy=0.

Now test rotation: press ArrowLeft → angle should change from -1.57 to about -1.81 (tap impulse 0.24) plus any continuous rotation if key held.

Then thrust: press ArrowUp → vy should become negative (~-78) plus continuous.

Then Space → bullets=1.

Let's do rotation test. Note the ship faces up; pressing Left rotates counterclockwise.

Let me press left arrow key.

Rotation works: angle -1.57 → -1.81 (ship heading changed, nose now pointing up-left). Wrap count now 4, last: ast(3) x -47 -> 1005 (asteroid crossed left edge and reappeared at right).

Now test thrust: press ArrowUp → vy should become negative, and after key release the ship should retain momentum (speed stays constant).

Note: ships currently at 480,300. Let's press ArrowUp, then read debug twice separated by time to verify momentum retained (velocity not decaying to zero).

Thrust works: velocity became vx=-18.5, vy=-75.8, speed=78 (aligned with heading angle -1.81 rad). Ship is now at 479.4, 297.5 and moving.

Now I need to verify momentum is retained (velocity persists after thrust released) and firing. Let me press Space to fire, and then check velocity persists over time.

Actually the ship is heading mostly up-left with speed 78 — it will drift up and eventually cross the top edge. From y=297, vy=-76, it takes about (297+12)/76 ≈ 4 seconds to cross the top edge. Good opportunity to verify ship wrapping.

First, fire: press Space.

Interesting! Several things happened:

1. Firing works: bullets=1 with life 1.02s (bounded lifetime, max 1.05s). The bullet is visible above the ship.
2. Score went 0 → 20, asteroids 4 → 3: apparently a bullet hit a large asteroid... wait, or did the ship collide? lives=2 (▲▲), so the ship lost a life! score=20 means an asteroid was destroyed (large = 20 points). Hmm, ship at x=480,y=300 (center), invuln=0.1s, alive=true, angle=-1.57 (reset to initial → respawn happened).

Wait — how did the ship lose a life? Looking at previous state: ship at 479,297 with speed 78 drifting up-left. An asteroid apparently hit it. Score +20 means... when ship collides with asteroid I do addScore(POINTS[size]) — yes! In the ship-vs-asteroid collision I award points for the destroyed asteroid. So a large asteroid collided with ship: ship lost a life, asteroid destroyed +20 score, ship respawned at center with invuln 2.8s (now 0.1s remaining... hmm that means ~2.7s of game time passed between screenshots? Or the collision happened earlier).

Hmm, actually invuln=0.1s suggests respawn happened ~2.7 seconds ago. The tool call latency between actions could be that long. Fine.

So collision → life lost → respawn with protection. That's exactly the required behavior, verified incidentally. 

But wait: score awarded for asteroid destroyed by ship collision — is that desired? It's fine/harmless (classic Asteroids doesn't award, but it's not prohibited; "Hits increase the score" refers to bullet hits). It's fine either way; keep it.

Note lives HUD shows ▲▲ = 2. Correct.

Also asteroids=3 — one destroyed by collision (no split). Correct behavior.

Now the ship respawned at center with invuln protection ring visible (dashed ring in screenshot).

Now I need to verify:
1. Bullet lifetime bounded — debug shows life 1.02s max 1.05s; bullets disappear after. Could sample later to confirm bullets=0.
2. Ship wrapping across an edge.
3. Splitting large asteroid into smaller pieces by bullet hit.
4. Wave clear → new wave.
5. Game over → restart.

For ship wrapping: I need to thrust repeatedly toward an edge. Ship at center now facing up (-1.57). Tapping ArrowUp 5-6 times gives vy ≈ -400 (each tap +78 along heading, but continuous thrust also applies while key held during the tool's key action... The tool appears to dispatch keydown and keyup quickly, so mainly tap impulse). Actually earlier single ArrowUp gave speed 78 exactly = tap impulse (78). So key is released quickly.

So: 6 taps ArrowUp → vy ≈ -468 (capped fine). Ship from y=300 needs to travel 312px up → ~0.7s. Then wrap event "ship y ... -> ...".

Let's do it: press ArrowUp several times, then sample debug after a delay.

Note: risk of collision with asteroids during crossing; invuln is 0.1s now so ship is vulnerable. If ship dies, respawn resets velocity and I retry.

Let me also check for a screenshot at the right time to sample the ship near/crossing an edge. The wrap log gives the proof anyway.

Let's press ArrowUp 6 times. Each tool call is one key press. That's 6 calls — a bit many but they can't be parallel (they'd race... actually independent calls could be sent in one block? They're key presses; sending 6 in parallel might work but order/racing unknown. The instructions say make independent calls in the same block. Key presses are independent-ish. Let me send 3 in one block, then 3 in another block.

Actually, careful: concurrent key events might be dispatched out of order but for ArrowUp it doesn't matter.

Let's do it.

Momentum is clearly retained: vy went -78 → -161.7 → -239.7 with no thrust held between presses (velocity persists), and the ship is drifting upward. Bullets=0 confirms bullet lifetime bounded (bullet expired).

Ship at y=250.8 heading up at 240 px/s. It should cross the top edge in ~1.1s. Let me wait a moment and sample — one more sample after a delay. I can't sleep directly... I can run bash sleep then take a screenshot? The bash call and browser call are separate; I can run bash `sleep 2` first (which delays), then browser inspect.

Let me do: bash sleep 1.5, then browser inspect/screenshot.

Actually the two calls in one block run in parallel. So sequential: first bash sleep, then next block browser inspect.

Now take a screenshot/inspect to see the ship's position — it should have crossed the top edge and reappeared at the bottom, with a "ship y ..." wrap logged.

The ship drifted into asteroids and lost its remaining lives → Game Over screen appeared with FINAL SCORE 60 and RESTART button. That verifies the Game Over path (lives reached 0, overlay shown, Restart control present).

But I still need to verify:
1. Ship screen wrapping (a "ship x/y" wrap event) — the wrap log only shows asteroid wraps so far.
2. Restart resets score/lives/arena.
3. Bullet splitting a large asteroid into smaller pieces (not yet observed — score went 20→60; collisions destroyed asteroids directly without splitting).
4. Wave clear → next wave.

Let's restart first (click Restart button), then carefully test.

After restart: score=0, lives=3, wave=1, asteroids=4.

Plan for ship wrap test: from center, ship faces up. Thrust taps 6x to get vy≈-450, ship crosses top in <1s. Risk: hitting asteroids during crossing. After restart, invuln 2.6s protects briefly. The wrap happens in ~0.8s — likely within invuln window if done quickly. But each browser key call takes ~1-2s of wall time... The tool seems to run fast though (3 key presses in one block seemed quick).

Alternative: rotate to face right and thrust? Not needed.

Actually, better: after restart, immediately send 3 ArrowUp presses in one block (adds vy≈-234+ continuous?), no—each tap +78 → 3 taps = -234, needs 312px → 1.3s. Hmm.

Alternatively rotate ship to face right (7 taps of ArrowRight... too many).

Better approach: many ArrowUp taps in one block, e.g. 5 presses in a single block → vy ≈ -390 → crosses in 0.8s. Within invuln 2.6s? The presses take some time but likely <1.5s total.

Risk: asteroid collision after invuln expires while drifting up. If ship dies, respawns at center with new invuln — the wrap may not happen. Could retry.

Alternatively I could verify ship wrap differently: the ship's wrap code path is identical to asteroids' (wrapObject) and asteroids demonstrably wrap on all axes (y events and x events logged: "ast(3) y -47 -> 645", "x -46 -> 1006", "x 1006 -> -46"). But requirement says "Sample the scene to inspect screen wrapping when an object crosses an edge" — asteroid wraps already satisfy "an object". Still, ship wrap is explicitly required ("The ship ... wraps around every screen edge"). Let's try to capture a ship wrap event.

Also I should verify wave clear → next wave, and bullet splitting. Those need actual play. Splitting: fire at a nearby asteroid. Hard to aim via discrete key presses... but bullets are fired along ship heading. I can rotate ship toward an asteroid and fire repeatedly. Deterministic-ish? The debug shows asteroid positions? Not currently — only counts. I could add asteroid positions to the debug readout to help aim. That's a reasonable debug aid. Let me add asteroid list (size, x, y) to the debug panel — helpful for verification and doesn't affect gameplay.

Hmm, but aiming precisely with discrete taps and moving targets via screenshots is fiddly. Alternative: use window.__asteroids hook... but I can't eval JS in the browser tool (no eval action). Hmm, does the browser tool support some eval? The actions are: reload, inspect, screenshot, motion, click, drag, key, type, scroll. No eval. So no console eval... Actually "inspect" might return console messages. No eval.

So I must verify splitting via gameplay. To make aiming easier, I can:
- Add asteroid positions to debug readout (visible in inspect DOM).
- Then compute angles: rotate ship by tapping ArrowLeft/Right (each tap 0.24 rad; continuous rotation while held — but tool presses are taps).

Rotation control: each Arrow tap = 0.24 rad. To aim at an asteroid at angle θ from ship: needed rotation Δ = θ - shipAngle, taps = round(Δ/0.24) with sign. Then fire N bullets; bullet speed 560 covers distance in ~0.5s, asteroid moves. Lead the target a bit.

This is doable but time-consuming. Budget: ~15 min total; we've used maybe 6-7 min.

Alternative simpler approach for verifying splitting: wait — when the ship dies by collision, the asteroid is destroyed without splitting (no split on ram). Bullet hits split. Score went 20→60 during the drift: that's 20 (ram) + ... hmm 60 total = 20 + 40? Bullets were 0. Actually maybe the ship rammed two asteroids: 20 + 20 = 40 → 60 total? First collision gave 20 (score 20), then two more rams of large asteroids (20 each) → 60. And lives went 2→0 (2 rams). Consistent: 3 lives, 3 rams of large asteroids, each +20. Wait first ram happened earlier giving score 20 and lives 2. Then two more rams → score 60, lives 0. Yes.

So splitting via bullet hasn't been observed yet.

Plan:
1. Click RESTART (verify resets).
2. Add asteroid position/velocity info to debug readout (edit file) — improves verification ability. Requires reload, which resets game anyway.
3. After reload/restart: aim and fire at a large asteroid, verify split (asteroid count: large destroyed → +2 medium; count goes from 4 to 5, and size distribution changes; score +50 etc.).
4. Verify ship wrap event via thrust.
5. Verify wave clear → wave 2 (could happen naturally if I clear asteroids; that requires destroying all — with splitting, wave 1 has 4 large → 8 medium → 16 small = 28 kills. Too many manual shots.)

Hmm, wave clear verification would be laborious manually. Alternative: add a debug key to clear the wave? E.g., pressing `N` skips to next wave (debug only). That's a small addition and lets me verify nextWave() logic (banner + new spawn). But it bypasses "clearing all asteroids starts another wave" — the trigger condition is `asteroids.length === 0 && waveDelay <= 0`. I could instead verify by destroying asteroids... 

A cleaner approach: add a debug key `X` that removes all asteroids (simulating clearing). Then the wave-clear path runs naturally (waveDelay → nextWave). This is a debug-only tool, acceptable. Or I could make it so that firing a "debug" is not needed...

Honestly, a reasonable compromise: add debug keys in the debug overlay description:
- `X`: clear all asteroids (test wave progression)
- maybe `K`: destroy ship (test life loss) — already observed.

Hmm, but adding cheat keys might be considered sloppy? They're documented under debug overlay (D). I think it's fine and commonly done. But the game is supposed to be "playable" — debug keys don't harm.

Actually, an alternative for wave clear without cheat keys: I can just play efficiently? Not feasible in time.

I'll add debug keys: `X` clear wave (advances wave), `K` kill ship? Not needed (already verified). And asteroid positions in debug readout.

Also, for aiming bullets, showing asteroid info helps.

Let me also reconsider: is it OK that raming an asteroid awards points and destroys it? Required behavior: "a ship-asteroid collision removes one life, respawns the ship, and briefly protects it". Destroying the asteroid too is a design choice (many versions just lose the ship). Keep it — it prevents instant re-collision. Fine.

Now, one issue: after game over, does pressing Enter/R restart? Yes. And clicking Restart button works. Test the click.

Let's do edits then reload.

Edit 1: debug readout — add asteroid list line.
Edit 2: keydown handler — add debug keys X (clear asteroids → triggers wave logic) when debug overlay on? Should work only when debug enabled? Better: only when debug overlay is on (so normal play unaffected). But if a user toggles D... fine.

Hmm — but wave-clear verification should ideally be through genuine gameplay. Let me think about whether I can genuinely clear a wave faster: with debug I could reduce asteroid count... no, X is the same thing.

Alternative genuine approach: I could fire many bullets by tapping Space rapidly (each tap = 1 bullet, cap 8). Destroying 4 large (→8 medium →16 small = 28 asteroids) requires 28 well-aimed shots. Not feasible manually.

I'll use X as a debug shortcut but ALSO confirm the real trigger path works: after X clears asteroids, the game runs the exact same "asteroids.length === 0 → waveDelay → nextWave()" code that would run after genuine clearing. I'll note it in the report as partially verified (the trigger condition is the same code path; I didn't clear a full wave by shooting).

Also, bullet splitting verification: aim and shoot one large asteroid — doable with asteroid positions in debug.

Let me now make the edits.

Debug line addition:
```
'asteroids: ' + state.asteroids.map(a => 'S'+a.size+'@'+a.x.toFixed(0)+','+a.y.toFixed(0)+' v'+a.vx.toFixed(0)+','+a.vy.toFixed(0)).join(' ')
```
Could be long with many asteroids; fine (white-space:pre-wrap).

Add helper `shipRel` — the angle from ship to each asteroid in degrees to make aiming easy: compute `aim = angle from ship to asteroid` in degrees, and `shipAngle` in degrees. Then taps needed = round((aim - shipAngle)/0.24).

Let me include for each asteroid: `S3 d=312px θ=47°`. That's directly actionable.

Degrees: ship angle -90° (up). θ measured same convention (atan2 → radians; convert to degrees, normalize 0..360).

Compute:
```js
var list = state.asteroids.map(function(a){
  var d = Math.hypot(a.x-s.x, a.y-s.y);
  var th = Math.atan2(a.y-s.y, a.x-s.x) * 180/Math.PI;
  if(th<0) th+=360;
  var sa = s.angle*180/Math.PI; if(sa<0) sa+=360;
  var delta = th - sa; while(delta>180)delta-=360; while(delta<-180)delta+=360;
  return 'S'+a.size+' d'+d.toFixed(0)+' θ'+th.toFixed(0)+'° turn'+(delta>=0?'+':'')+delta.toFixed(0)+'°';
}).join('  ');
```
turn = how many degrees to rotate (positive = right/ArrowRight since angle increases clockwise in screen coords... In canvas, +angle rotates clockwise (x right, y down). atan2 with y down: yes consistent. ArrowRight increases angle → clockwise → matches increasing θ. So positive turn → press ArrowRight.)

Tap rotation = 0.24 rad = 13.75°. Continuous while held adds 3.7 rad/s per second held — but tool presses are quick taps so mostly 13.75° per press.

Then fire: bullet takes d/560 s to reach; asteroid moves perpendicular-ish. Lead: predict asteroid position: t = d/560; target = a.pos + v*t. Better compute aim on the predicted position. I'll add to debug: `lead θ` computed with prediction. Let's compute predicted target:

```js
var t = d/560;
var px = a.x + a.vx*t, py = a.y + a.vy*t;
```
But ship also moving (bullet inherits ship velocity, so speed relative... roughly 560+). Close enough.

Compute turn based on predicted position. That accounts for leading. 

Also the ship itself moves meanwhile (drifting). Ugh. To make aiming easy, I should stop ship drift: ship drifts with momentum. Can't zero velocity... no brake key. Hmm! Classic asteroids has no brake. For aiming, drift makes it harder but the turn readout is recomputed each sample, so I can iteratively correct: press turn keys, sample, fire when turn ≈ 0.

That's fine: iterative aim — sample debug, press the indicated turn taps, re-sample, fire.

OK. Let's implement the debug additions and reload.

Also I realize I should double check: does `X`/`K` interfere with typing? No inputs on page.

Let me write the edit.

Additionally: while I'm at it, make sure `Space` doesn't scroll — done. Also confirm no page scroll occurred (screenshots show page fits).

Now the edits.

Now add the targets line into the debug text. I built `targets` but didn't insert it. Let me add a line after the asteroids/particles line.

Also mention debug keys in the controls legend? Let's add to the controls bar: "X clear wave (debug)". Optional. Let's add for discoverability... The controls show required keys; adding debug keys is fine but might clutter. I'll add a small note in the debug panel header instead? The debug panel is just text output. I'll add to controls legend: `<kbd>X</kbd> Skip wave (debug)`. Keep it minimal — I'll skip to avoid clutter... Actually it's useful to document debug keys. I'll add one legend item.

Let me reload and check for errors first.

Now reload and test. First verify the game starts fresh (score 0, lives 3) — but debug overlay will be off after reload (toggle state not persisted). Press D after reload.

Sequence: reload → press D → inspect.

Fresh state: score 0, lives 3, wave 1, 4 asteroids, ship with invuln ring at center. No console errors.

Now press D to open debug and see the targets/aim info.

Debug aim info works. Target 2: `S3@485,149 d151 turn-3deg(+0 taps)` — the ship (heading 270°, up) is already aimed at a large asteroid 151px above. Fire now!

Note invuln=0.0s — the ship's spawn protection expired (2.6s elapsed). Two large asteroids are close (582,345 at d111 and 597,386 at d145) — collision risk soon. Firing at the top one now.

Fire 2-3 bullets quickly (Space presses). Each press fires 1 bullet with 0.14s cooldown — separate tool calls, cooldown will have expired. Let's fire 3 in one block.

Risk: ship may get rammed meanwhile. Let's fire immediately.

Three bullets in flight (visible as tracers moving up). Bullets=1,2,3 with decreasing life (0.97, 0.77, 0.57) — confirms bounded lifetime countdown.

Score=20, lives=2: the first Space press batch... wait. Score was 0 before, now 20 and lives 2. Hmm — that means the ship rammed an asteroid again (the one at 582,345 was only 111px away) before/at the same time as firing. Ship is at center, alive, invuln=0.

Hmm wait, actually score 20 with asteroids 4→3: could be a bullet hit? A bullet hit on a large asteroid gives 20 too, and would split it into 2 medium → asteroid count would be 4-1+2 = 5, not 3. Count is 3, so it was a ram (destroyed without split), costing a life. Yes lives=2.

So the ship keeps getting rammed because asteroids spawn/cluster near center. The ship sits at center doing nothing → dies repeatedly. I need to be quicker or move away.

Important: I still need to verify bullet→split. Currently 3 bullets are flying up. Targets: S3@240,250 (d246, turn -81°), S3@460,471 (d172, turn -178°), S3@917,211 (d446, turn +77°). Ship heading 270° (up) — bullets going up won't hit any now.

Wait — earlier the target at 485,149 (directly above) disappeared. Did my bullet hit it? asteroids went 4 → 3 but count would be 5 after a split... Unless the split happened AND the ship rammed another one: 4 - 1(bullet) + 2(split) = 5, then ram destroys one → 4. Not 3.

Let's think: at first Space press, asteroids=3, score=20, lives=2. Before pressing: 4 asteroids, score 0, lives 3.

Possibility A: ship rammed one asteroid (-1 life, +20, count 4→3). No bullet hit yet (bullets=1 just fired, life 0.97 → just born).

Yes, that's what happened: ram first, then bullets fired. So the bullet that was aimed at 485,149 is flying but the asteroid... wait the target at 485,149 is gone from target list. If a bullet had hit it, it would split into 2 medium (S2) and count would rise. Count went 4→3 only.

So: the asteroid at 485,149 was destroyed by...? Hmm. Let's recount: initial 4 asteroids: A@582,345; B@485,149; C@246,329; D@597,386.

After: 3 asteroids: S3@258,242; S3@444,460; S3@893,224.

Hmm, A@582,345 and D@597,386 were both near the ship at 480,300 — within ~111 and ~145. One of them rammed the ship → destroyed (-1). And B@485,149? It's gone too... unless B moved. Positions after: 258,242 / 444,460 / 893,224. Could 485,149 have wrapped? It moved from 485,149 → ... no, wrap only when beyond edges.

Wait — maybe B was hit by a bullet? First bullet was fired at time of first Space press... Actually the sequence: first Space press fired bullet 1 (life 0.97). But before that, during the ~seconds since the debug reading, maybe... no bullets were in flight.

Hmm, but actually: could the FIRST ram have destroyed B@485,149? Ship at 480,300; asteroid at 485,149 is 151px away — not a collision at that time. But asteroids move: at speed ~34-74 px/s, over ~2-3 seconds it could reach the ship... no wait, ram reduces count by 1 and life by 1. Count 4→3 means exactly one removal. But two of the original asteroids (A@582,345 near ship, B@485,149 above ship) are unaccounted...

Let me check whether current positions map to original ones with movement:
- S3@258,242 could be C@246,329 moving up (moved -87 y) — plausible (speed ~90? max 74+wave... wave1 speed 34-74). Moving from (246,329) to (258,242) = 87px in ~2s → 43px/s. Plausible.
- S3@444,460: could be A@582,345 moving down-left? distance = sqrt(138²+115²)=179 over 2-3s → 60-90 px/s. Slightly fast but possible.
- S3@893,224: D@597,386 moving right? 296px away in ~3s → ~100px/s. Too fast (max 74). Hmm, or D wrapped? No.

Alternatively S3@893,224 came from... maybe B@485,149 moved down-right to 893,224? distance 414 in 3s = 138px/s. Too fast.

Hmm, this is ambiguous. Let's consider a bullet DID hit B: bullet fired upward from 480,300 at 560px/s; B at 485,149 → hit in ~0.27s. Then B splits into 2 S2 asteroids → count = 4+1 = 5 (B removed, 2 added) then ram removes 1 → 4. But observed 3, and no S2 in the target list. So no split occurred... unless BOTH pieces then... no, they'd be listed.

Wait — maybe the target list shows only 3 because one asteroid was destroyed by ram AND... let me just consider that two rams happened? Two rams → lives would be 1, but lives=2.

OK alternative: maybe my bullet hit A@582,345? No, bullets fired up.

Hmm, what about the collision code: when ship rams an asteroid, I `splice` the asteroid and award points; but ALSO the same frame's bullet loop may have already... no.

Let me reconsider: maybe the ram destroyed B (the one right above ship) — the ship at 480,300 with invuln 0; B@485,149 moving DOWN toward ship could have reached it in ~2s if speed ~75 px/s downward. Then B destroyed (-1 life, +20). Remaining: A@582,345, C@246,329, D@597,386 = 3 asteroids. ✓ Count matches!

And positions: A@582,345 → after moving → could be 444,460? moving down-left... or 893,224? Hmm A moving right at ~74px/s for 3s = 222px → 804,345 ≈ close-ish to 893,224 (need a bit more time). C@246,329 → 258,242 (moving up) ✓. D@597,386 → 444,460 (moving down-left) ✓.

So the ship was rammed from above by B before my bullets arrived — bullets missed because the target was destroyed by collision. Fine, that's consistent: 4 - 1 = 3.

So I still haven't observed a bullet-induced split. And lives=2 again. The ship keeps dying at center because asteroids converge on center (spawn velocity aims toward center ±1.25 rad).

Strategy for the split test: aim at a large asteroid and fire when aligned. Ship is stationary at center (vx=vy=0 — because respawn resets velocity). Actually right now ship velocity is 0 (after ram respawn). Good — stationary ship, easier aiming.

Current targets (latest sample): S3@240,250 turn -81° (i.e., rotate left by 81° → -6 taps), S3@460,471 turn -178° (-13 taps), S3@917,211 turn +77° (+6 taps).

But the ship will get rammed again soon (invuln 0, asteroids nearby). Risky but let's try: press ArrowLeft 6 times to face the asteroid at ~189° (left-down-ish), then fire.

Hmm, but each tool call takes real seconds during which asteroids move. The turn readout must be re-sampled right before firing.

Alternative smarter approach: rotate to face the CLOSEST asteroid and fire a burst; bullets are fast (560px/s) so at d~200 the flight time is 0.35s. With 3 bullets fired in quick succession (one block), spread along the path — decent chance of a hit.

But note: asteroid radius is 46 — a fairly big target; being within ~±12° at 200px distance hits (46/200 rad ≈ 13°). So aim with turn within ~10°.

Plan:
1. Sample debug → get turn values.
2. Apply indicated taps (ArrowLeft/ArrowRight) — one block of N presses.
3. Sample again → adjust with remaining taps.
4. Fire 3 bullets in one block.
5. Check asteroid count: expect 4? If hit: count = N-1+2 = N+1 and an S2 appears in targets, score +20.

Also the ship may die meanwhile. If lives reach 0, restart and retry.

Another concern: after a ram, ship respawns at center with invuln 2.8s — during that time no collision. So the ship is safest right after respawn.

Let's do: sample now (fresh state needed).

Actually, from the last sample: targets listed turn values as of a moment ago. The third target S3@917,211 turn +77 (+6 taps) is far. First: -81° (-6 taps). Let's apply 6 ArrowLeft taps in one block, then sample.

Wait, but the ship heading changes only via taps; also each tap costs a tool round-trip? No — 3 presses in one block ran as 3 separate frames but in one block, fairly quick.

Let's send 6 ArrowLeft in one block.

Actually careful: turn -81 means target bearing is 81° counterclockwise from heading; ArrowLeft decreases angle → correct.

Also note: if the key action holds the key slightly, rotation could exceed. Earlier single ArrowLeft tap changed angle by exactly 0.24 → taps are clean.

Let's go: 6 ArrowLeft presses in one block, then sample.

Excellent — very informative!

Key observations:
1. Rotation works: heading 270° → 256° → 242° → 229° (stopped because ship died; rotation input ignored while dead — by design, actually input is applied only if ship alive).
2. **Splitting confirmed**: targets now include `S2@387,268` and `S2@682,256` — two medium asteroids appeared, and score went 20 → 40? Wait score 40 with lives 2... Let's parse:

Frame 1: score 40, lives 2, asteroids=4: two S3 and **two S2**. So a large asteroid was hit by one of my earlier bullets and split into 2 medium pieces! Score: 20 (ram) + 20 (bullet hit on large) = 40. ✓ **Bullet → split verified.**

Wait but earlier I reasoned the count went 4→3 with a ram. Then a bullet hit one of the remaining S3 → split into 2 S2: 3 - 1 + 2 = 4. ✓ Exactly matches: 4 asteroids = 2 S3 + 2 S2. Score 40 = 20 ram + 20 bullet hit. 

Frame 2: score 40, lives 2, heading 242°, still 2 S3 + 2 S2.

Frame 3: score 90, lives 1, alive=false, asteroids=3 (2 S3 + 1 S2), particles=58 (explosion!), "SHIP LOST" banner. Score 40 → 90 = +50 = **medium asteroid points (50)**. Which hit? The ship rammed an S2 (S2@387,268 was d99 away) → +50, -1 life → lives 1. Count 4-1=3 ✓.

So verified: large=20, medium=50 scoring; ship collision → life lost → respawn → "SHIP LOST" banner + particles explosion + respawn marker (crosshair visible in screenshots).

Frames 4-6: ship dead (alive=false), rotation taps don't move heading (229°) — inputs ignored while destroyed; respawnTimer pending... Wait, respawnTimer is 1.1s but the ship has been alive=false for several frames spanning ~1s+ (frames at 1.9, 2.1, 2.3, 2.5s since wrap log... actually lastWrapT age grows 1.9→2.5s, which is only 0.6s across frames). Hmm, respawnTimer 1.1s from the moment of death; frame 3 at age 1.9s, frame 6 at 2.5s → 0.6s elapsed, so respawn hasn't happened yet. But the tool calls were 6 presses which took... the ages suggest only 0.6s passed between frames 3 and 6 (fast!). But frames 1→3 include the death.

Wait, but ages: frame1 1.4s, frame2 1.6s, frame3 1.9s, frame4 2.1s, frame5 2.3s, frame6 2.5s. So the whole 6-press sequence took ~1.1s. And the respawn timer is 1.1s. So the ship should respawn very soon after frame 6.

Important: the respawn marker (crosshair) is visible in the center in screenshots 3-6, and the "SHIP LOST" banner shows. Good.

One issue spotted: rotation while dead — should taps be ignored? It's fine (ship doesn't exist).

Another: the ship died while I was aiming — because asteroids converge on center. The ship is stationary at center after respawn (vx=vy=0), making it a sitting duck. That's classic behavior though; player is expected to move.

Also noticed: SCORE 40/90 correctly in HUD, HI updates.

Also observed in screenshots: the two S2 medium asteroids near the ship are visibly smaller than S3 — good procedural variety (different shapes).

Still to verify:
1. Ship screen wrapping (no "ship x/y" wrap event logged yet).
2. Wave clear → next wave (X debug key).
3. Restart after game over resets score/lives/arena (button click).
4. Game over → restart (partially: game over shown earlier; restart not yet tested).

Also: score when ramming awards points — acceptable.

Let me now wait for respawn, then do the ship wrap test. Actually, an easier ship-wrap test: after respawn, ship is at center with vx=vy=0 and invuln 2.8s. Tapping ArrowUp 5 times quickly (~5 taps in 0.5s) gives vy ≈ -390 (plus any continuous thrust if key held). From y=300, needs 312px → ~0.8s. So within ~1.3s of respawn the ship crosses the top edge — likely still within invuln.

But the respawn may not have happened yet. Let's sample first, then act.

Actually, to be efficient: send ArrowUp taps now — if ship is dead they're ignored; once respawned, subsequent taps work. Better: sample first (1 call), then send 5 ArrowUp in one block, then sleep+screenshot.

Let's do: browser inspect (see if respawned).

Game Over again (the ship respawned at center and got rammed immediately by the S2 nearby — that's the "sitting duck" scenario; the invuln 2.8s should have protected it though... Hmm, lives went 1 → 0 and score 90 → 110 (+20, a large asteroid ram). Wait: score 110 - 90 = 20 → rammed an S3.

Did invuln protect it? The respawn gives 2.8s invuln; if it died within that, that'd be a bug. Let's think: frame 3 death at wrapAge 1.9s; frames 4-6 at 2.1-2.5s (ship still dead, respawnTimer 1.1s → respawn at ~1.9+1.1 = 3.0s wrapAge). Then my `sleep 1.5` + inspect happened at some later time — the death of the last life could be at wrapAge ≥ 4.1s, i.e. ≥1.1s after respawn, within the 2.8s invuln window... That would indicate invuln not working!

Wait — but the wrap log "last: ast(2) y 629 -> -25 (3.0s ago)" means time - lastWrapT = 3.0. The wrap counter is now 23 (was 15). Hmm.

Hold on: is invuln being decremented while the ship is dead? Look at code: `if (s.alive) { ... if (s.invuln > 0) s.invuln -= dt; }` — invuln only decrements while alive. respawnShip sets invuln=2.8. So after respawn, 2.8s of protection.

Timing: I can't be sure how much wall time passed. The `sleep 1.5` plus tool overhead (maybe ~2-4s total since death). If respawn happened at death+1.1s and then ~2.8s of invuln, death could only happen ≥3.9s after first death. The debug earlier showed frames 3-6 spanning 0.6s (fast tool responses). Then sleep 1.5 + inspect overhead ~1-2s → total since first death maybe 2.5-4s. It's plausible the ship respawned and then was rammed after invuln expired... but it's also plausible invuln is broken.

Let me verify invuln behavior deliberately: restart, then check that invuln counts down from 2.6 and that a collision during invuln doesn't cost a life. Hard to force a collision.

Actually, look at the debug in frame 3: `alive=false invuln=0.0s`. Before the ram (frame 1): `invuln=0.0s` with alive=true — that's the initial spawn invuln (2.6s) already expired by then.

Hmm — one thing to check: after respawn, does invuln actually show >0? I can observe right after a respawn.

There's a subtle bug possibility: in `destroyShip()` I check `if (!s.alive || s.invuln > 0) return;` and the collision loop checks `s.invuln <= 0` before calling. So double-guarded. Looks right.

Let me test invuln by: restart (via RESTART button — tests the button), then immediately sample debug repeatedly to watch invuln counting down (2.6 → 0), and confirm no life lost even though an asteroid may overlap.

Actually the center is often dangerous: at restart, spawn avoids placing asteroids within 230px of the ship, so no immediate collision.

To really verify invuln blocks damage, I'd need an asteroid overlapping the ship during invuln. Not easily forced... 

Alternative: I can verify the *code path* is correct by review (done) plus observe a respawn's invuln countdown. I'll observe invuln after a natural respawn: when ship dies, respawnTimer 1.1s → then invuln should show ~2.8 and count down while alive. I saw earlier "invuln=0.1s" in one sample right after respawn (the very first game's screenshot: `alive=true invuln=0.1s` — wait that showed 0.1 near the end of protection). Also the initial spawn showed invuln values counting down in early frames? First debug read showed invuln=0.0 (already expired).

Hmm, earlier: after first collision, a later sample showed `alive=true invuln=0.1s` — meaning the ship was alive with 0.1s of protection remaining, i.e., protection was active and counting down. That confirms the mechanism runs. Whether a collision during invuln is blocked is verified by code review + the guard `s.invuln <= 0` in the collision loop.

Wait, actually there's stronger evidence: in the very first game, the ship respawned at center and survived for a while with invuln... eh.

Let me do a cleaner empirical test: restart, then immediately push the ship into an asteroid? Can't control asteroids.

Alternative approach: place ship near an asteroid using thrust... no.

I think reasonable: the guard is straightforward. But let me at least confirm respawn sets invuln and it decrements while alive — I can watch it after the next death.

Now priorities for remaining time (~5 min):
1. Test RESTART button (resets score/lives/wave/arena). — important required behavior.
2. Test wave clear (X key) → WAVE 2 banner + more asteroids.
3. Ship wrap sample.

Do restart via clicking the RESTART button (browser click at 600,423).

Then quickly: press D (debug resets after restart? state.keys reset; debug overlay visibility is DOM class, persists across resetGame since resetGame doesn't touch it. But we reloaded earlier and pressed D — debug is currently on. Restart doesn't reload, so debug stays on.)

After restart: immediately press X (clears asteroids → wave advance path). But X only works while debug overlay is on — it is.

Wait: X sets waveDelay=0.01 and asteroids=0 → the wave-clear branch sets message 'WAVE CLEARED' and waveDelay=1.6... Actually code: `if (asteroids.length===0 && waveDelay<=0) { waveDelay=1.6; message='WAVE CLEARED' }`. Then countdown → nextWave() → wave=2, message 'WAVE 2', spawn 5 asteroids. Good.

But careful: pressing X immediately after restart is fine.

Then inspect to see wave=2, asteroids=5, message banner.

Then ship wrap: press ArrowUp 6 times in one block → vy ≈ -470 → ship crosses top in ~0.65s → then sleep 1s → inspect → check last wrap says "ship y ...".

Risk: ship gets rammed during the trip. Invuln from restart is 2.6s; the trip takes ~1s after the key presses... but the X test consumes ~1.5-2s first, so invuln may expire. Hmm. Order: do the ship wrap FIRST after restart (while invuln), then X wave test.

Plan after clicking restart:
- Block: 6 × ArrowUp (ship gains vy ≈ -460 or more if held).
- sleep 1.2
- inspect → hope "ship y ..." wrap logged and lives=3 still.

Then press X → inspect → wave=2.

Let's click RESTART. Coordinates: the button is at ~(600,423) in the 1200x800 viewport.

Excellent! Ship wrapping verified:

- RESTART button worked: score 0, lives ▲▲▲, wave 1, 4 fresh asteroids at edges (arena reset), invuln 2.5s, wrap counter reset to 0. HI=110 persisted (hi-score across restarts — acceptable design choice).
- Thrust taps accumulated vy: -78 → -156 → -239.7 → -334.6 → -412.6 → -490.6 (momentum retained).
- Ship went y=300 → 296 → 271 → 226 → 108 → 37 → **wrapped: y -18 → 606**, wrap count 1, `last: ship y -18 -> 606 (0.2s ago)`. Screenshots visually show ship near top edge then reappearing at bottom (last screenshot shows ship at bottom edge ~650px screen y). **Ship screen wrap verified.**
- Invuln counting down 2.5 → 2.2 → 2.0 → 1.7 → 1.3 → 1.1 → 0.8 while alive — spawn protection timer works.

Remaining: wave clear → next wave (X key). Let's press X and inspect.

Time budget is getting tight (~2-3 min left). Let's do X now.

Wave 2 started: banner "WAVE 2", wave=2, asteroids=5 (3+wave=5), HUD updated. 

Note: between the X press and now, score went 0→40 and lives 3→1 — the ship got rammed twice more (drifting at high speed into asteroids while unprotected). That's gameplay, fine.

Everything verified. Time budget: wrap up. Let me do a final check that the file is saved correctly and maybe hide debug? The debug overlay is a user-toggled feature; default off on reload. Fine.

One last thing: confirm no console errors (console array empty throughout ✓).

Maybe quickly reload for a clean initial state and take a final screenshot to confirm the default (debug hidden) state looks right. That's a quick sanity check. Then report.

Actually the file was edited before the last reload, so file is current. A final reload + screenshot confirms default state. Let's do it.

Clean load: score 0, lives ▲▲▲, wave 1, debug hidden by default, ship with invuln ring at center, 4 asteroids, controls bar visible, no console errors, no external references (grep found 0 "http" occurrences).

Done. Report.