#OGHermes / #spire-defense / New thread for wave and enemy spawn mechanics adjustment

• Session ID: 20260804_232813_7f2a3e11
• Source: discord
• Model: MiniMax-M3
• Started: 2026-08-04T23:28:13
• Ended: in progress
• Messages (user+assistant): 40

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#user (2026-08-04T23:28:12)

New thread for wave and enemy spawn mechanics adjustment

#assistant (2026-08-04T23:28:19)

<details><summary>reasoning</summary>

OG is opening a new thread for adjusting wave and enemy spawn mechanics in Spire-Defense. This is the start of a design discussion. Let me check the relevant skills first — spire-defense-build-protocol and spire-defense-autobuy-architecture look directly applicable. The idle-game-design-canon might also be relevant since this is a wave-based defense game.

Let me load these skills to make sure I follow the right protocols for Spire-Defense work

</details>

#assistant (2026-08-04T23:28:24)

<details><summary>reasoning</summary>

OG started a new thread for wave and enemy spawn mechanics adjustment. This is a new feature area. Let me acknowledge and ask scoping questions per the build protocol rule 1 (spec-clarification menu of Q1/Q2/Q3).

Per memory: this is a new feature thread. The build protocol says start with the Q1/Q2/Q3 menu for spec clarification.

Let me also check what’s currently in the codebase for waves/enemies to give an informed reply.

</details>

#assistant (2026-08-04T23:28:27)

#assistant (2026-08-04T23:28:30)

#assistant (2026-08-04T23:28:38)

<details><summary>reasoning</summary>

The user just opened a new thread about wave and enemy spawn mechanics adjustment. They haven’t asked anything specific yet — this is just the thread title/announcement. I should:

1. Acknowledge the thread
2. Set context for what’s coming (wave/spawn mechanic changes)
3. Not assume what they want to change — wait for their actual first message or ask a focused clarification

Let me check the existing wave/spawn system briefly to be ready, but primarily this is a “new thread opened” message, not a task yet. The right move is to acknowledge and stand ready, possibly with a quick recap of the current state.

Actually — looking at the user’s style, they often open threads then give the spec on the next message. The thread title itself is the spec context: “wave and enemy spawn mechanics adjustment.”

I should:

• Briefly acknowledge (per OG-style: terse, no fluff)
• Note I’m ready
• Maybe surface 1-2 high-signal questions or current state summary to be useful immediately

Let me peek at the wave manager to know what’s there.

</details>

#assistant (2026-08-04T23:28:42)

#assistant (2026-08-04T23:28:47)

OK — I have a solid handle on the codebase shape. WaveManager has the spawn cadence (150ms base) and effectivePacing(), the tier distribution table lives in DEFAULT_TIER_DISTRIBUTION, and Boss period is configurable (default 25). Let me look at the current pacing function and the archetype picker, plus check what’s recently shipped, before asking what the adjustment is.

#assistant (2026-08-04T23:29:00)

I have enough context now. OG opened this thread themselves — they want to discuss wave + enemy spawn changes. I shouldn’t dive into edits; I should acknowledge, surface what I already know about the current knobs, and ask what direction they want.

Quick map of what I’m seeing:

• Cadence: SPAWN_INTERVAL_MS_BASE = 150ms, scaled by effectivePacing() = base / sqrt(bestWave/50 + 1) / tier.spawn, floored at 15ms
• Tier pacing multiplier: from _tierMod(tier).spawn (1.0× at T1, 1.15× at T2, 2.02× at T10)
• Concurrency cap: MAX_CONCURRENT = 20 alive at once
• Boss cadence: BOSS_PERIOD = 25 waves
• Kill quota: KILLS_PER_WAVE = 100 — wave advances on kills, not spawns (every death immediately re-spawns up to cap)
• Composition: T1 = 70/25/5/0, T2 = 55/25/10/10, T4 = 40/20/10/10 + 20% Splitter
• Wave Skip: Gem Market card, +100 waves/level, capped at min(level×100, bestWaveByTier[tier])

OG opened the thread with a topic title but no body yet — they may want to write the spec themselves, or they may want me to prompt them with the levers. Per the question-shape rule and the “diagnostic question” pattern, I should not invent a problem or guess the direction. Reply concisely in-thread with a clickable test URL (per memory) and offer to be their scratchpad.

[OG_Arist0tle] New thread for wave and enemy spawn mechanics adjustment

✅ Thread is live and ready. The current knobs on the table:

Lever	Current value	Where
Base spawn cadence	150ms	WaveManager.js:58
Pacing curve	base / √(bestWave/50 + 1)	effectivePacing() line 337
Tier spawn multiplier	1.0×→2.02× across T1–T10	EnemyArchetype.js tier table
Floor	15ms	line 350
Max concurrent	20 alive	MAX_CONCURRENT line 56
Boss period	every 25 waves	BOSS_PERIOD line 57
Kill quota	100 kills/wave	KILLS_PER_WAVE line 47
T1 composition	70/25/5/0	line 34
T2 composition	55/25/10/10	line 35
T4 composition	40/20/10/10 + 20 Splitter	line 36
Wave Skip	+100/level, capped at bestWaveByTier[t]	skipWaves() line 437

What’s the adjustment — pacing too fast/slow, composition feels off, boss cadence, the kill→spawn loop, or something else? I can run a tier-independence forum-check on any per-tier lever before we commit, and we still have the live build at:

https://ogflow.taile970c7.ts.net/?v=wave-spawn-thread1

#user (2026-08-04T23:32:02)

Currently the enemies on the field are cleared when 100 kills occur and a new wave starts spawning. I would like to have the enemies persist on the field instead of being cleared. So every 100 kills the wave will increase and the appropriate wave scaling multipliers will apply, but the enemies should remain on the field until they are killed.

#assistant (2026-08-04T23:32:16)

This is a clean, well-scoped change. Let me trace exactly where the clear happens before recommending an approach — this is the kind of edit where “enemies persist” could mean “never clear ever” vs “clear only on boss-wave vs “clear only on tier transition” etc., and I want to confirm the mechanism before I commit to the diff.

<details><summary>reasoning</summary>

Let me carefully understand the request:

Currently: When 100 kills occur, the wave advances AND enemies are cleared from the field.

Desired: When 100 kills occur, the wave advances (and scaling multipliers apply), BUT enemies should REMAIN on the field until they are actually killed.

So the change is: remove the “clear enemies on wave advance” behavior. Enemies stay until killed.

Let me trace through the current code to understand:

1. Where does the wave-clear path clear enemies?
2. What happens to enemies when wave advances?
3. How does spawning work after wave clear?

Let me look at WaveManager.js more carefully to find the wave-clear logic and how enemies get cleared.

</details>

#assistant (2026-08-04T23:32:19)

#assistant (2026-08-04T23:32:23)

#assistant (2026-08-04T23:32:39)

I have the exact mechanism. Two-line fix, but there’s a follow-on consequence I need to flag before I commit anything — the post-wave “over-time” spawn-on-kill loop will keep refilling the field against a non-clearing MAX_CONCURRENT cap, and enemies from wave N will inherit the new wave’s tier multiplier without dying first. This is exactly the kind of mid-stream spec question OG cares about (rule 30). Let me reply with the recommended approach + the one ambiguity I need resolved before I touch the code.

[OG_Arist0tle]

Got the mechanism. The clear lives in one place:

// src/wave/WaveManager.js:791-795  (_checkWaveClear)
if (this.killsRemainingToWave <= 0 && this.liveBosses <= 0) {
  this.enemiesAlive = [];   // <-- THE LINE
  this.startNextWave();
}

The behavior is also already partial — when the 100th kill lands, the kill-on-death spawn loop keeps filling the field against MAX_CONCURRENT = 20, but then the enemiesAlive = [] line wipes them before the next wave starts. Net effect today: visible field clear on every 100 kills.

Recommended change (one-line diff): delete line 793. Enemies keep existing, the next wave’s startNextWave() increments the wave counter and applies the new tier/wave multipliers to future spawns only — existing enemies keep the multipliers they spawned with (per the existing snapshot rule at line 498).

Before I commit, two design points I want to lock in:

1. Tier upgrade carry-over. When wave N→N+1 crosses a tier boundary (e.g. tier 1 wave 200 → tier 2 wave 1), existing enemies on the field were spawned at T1 multipliers but will now face T2 player-side modifiers. They won’t retroactively buff, but the player might be surprised that they’re so weak. Two options:

   • (a) Kill all surviving enemies on tier change (one-shot clear on tier boundaries, keep persistence otherwise).
   • (b) Let them live, accepting they’re free kills now.
   • Per rule 41 the per-spawn snapshot rule says “next wave’s spawns reflect them” — (b) is consistent with existing semantics. But tier transitions are a special moment, not a normal wave advance.

2. MAX_CONCURRENT after wave advance. With persistence, the field can stay at 20 indefinitely. New enemies can only spawn when one dies (existing kill-on-death spawn loop). That’s still 20 alive at all times — is that the intended feel, or do you want the cap to relax (e.g. 25, 30) once enemies start carrying across waves?

My read: (1) = (b), (2) = no change, MAX_CONCURRENT stays 20. The whole point of the request is to see enemies accumulate, not to make them disappear on tier boundaries. But say so and I’ll ship it.

Also fwiw, this is exactly the kind of per-spawn-snapshot change rule 41 covers — I can run the tier-independence forum-check on the spawn cadence against this before committing if you want the audit trail.

Live build

#user (2026-08-04T23:36:37)

1. Not possible since tiers can only be changed after a run ends. Enemies spawn fresh on a new run.
2. We may relax the cap, but leave it at 20 for now. Could possibly have a gem market upgrade to increase the cap down the line sometime.

#assistant (2026-08-04T23:36:43)

Clean answers, both reasonable. Tier transitions are moot since they happen on run-end (fresh enemies on new run), and MAX_CONCURRENT stays at 20 for now with a future gem-market upgrade noted in the spec. Let me ship the one-line fix and verify.

#assistant (2026-08-04T23:36:48)

#assistant (2026-08-04T23:36:51)

#assistant (2026-08-04T23:37:03)

Good — chain05 is current. Next tag will be persist01. Now the actual diff and verification.

#assistant (2026-08-04T23:37:15)

Now I need to update the file-header comment (which still says “Wave advances IMMEDIATELY when all 100 + boss die, no intermission” — accurate, but the sub-bullet about the kill-quota being the wave objective is no longer the only visible behavior, since enemies are now also visible). And I need to update the related oilRate() offline simulator docstring at line 805 since the field can now stay populated permanently.

#assistant (2026-08-04T23:37:19)

Now bump the build version, then run the regression audit (rule 48: verify before sending the test link).

#assistant (2026-08-04T23:37:23)

#assistant (2026-08-04T23:37:27)

Now check for existing tests + run the headless regression audit per rule 48 before sending the test link.

#assistant (2026-08-04T23:37:30)

#assistant (2026-08-04T23:37:33)

There’s a headless_regression_audit.mjs — exactly what rule 48 says to run. Let me also check whether the server is running and audit the related tests in parallel.

#assistant (2026-08-04T23:37:36)

Server is running, audit tests exist. Run them in parallel:

#assistant (2026-08-04T23:37:47)

Headless audit clean. Now write a targeted persist-verify test that proves the actual behavior change: enemies persist after a wave-clear.

#assistant (2026-08-04T23:38:22)

Good, I can see the pattern. Now let me write the persist-verify test.

#assistant (2026-08-04T23:38:25)

#assistant (2026-08-04T23:38:34)

Test passes cleanly. Snapshot at /tmp/screen-wave-persist.png for the visual evidence.

Pre-boundary: 20 alive (MAX_CONCURRENT). At the 100-kill boundary: wave advanced 1→2, field still at 20 alive (was previously wiped to 0), and the post-tick snapshot confirms 20/20 cap holds. Headless regression audit already clean.

Now I’ll also update the build-protocol lessons file and the test README since this shipped new behavior worth capturing.

#assistant (2026-08-04T23:38:38)

#assistant (2026-08-04T23:38:43)

Good — there’s a running lessons file for 2026-08-05. Append a new section for the wave-persist commit.

#assistant (2026-08-04T23:38:46)

#assistant (2026-08-04T23:39:19)

#assistant (2026-08-04T23:39:29)

Hmm — the patch picked up a trailing fragment from the truncated file (“bug that comes back from the test link.” was the next line that I didn’t see in my limited read). Let me check and clean it up.

#assistant (2026-08-04T23:39:33)

#assistant (2026-08-04T23:39:37)

#assistant (2026-08-04T23:39:48)

Clean. Now write the test README entry and check git status:

#assistant (2026-08-04T23:39:52)

Now check git status, verify the screenshot exists, and ensure the regression audit still passes after all the changes:

#assistant (2026-08-04T23:40:10)

Everything green. Three modified files (build.js version bump, WaveManager.js behavior change, tests/README.md), one new test (wave-persist-verify.mjs), screenshot at /tmp/screen-wave-persist.png. Headless regression audit clean.

[OG_Arist0tle]

Shipped. Diff summary:

File	Change
src/wave/WaveManager.js	Deleted this.enemiesAlive = [] in _checkWaveClear (line 793); updated file-header comment with persist behavior
src/core/build.js	chain05 → persist01, commit message updated
tests/wave-persist-verify.mjs	New 130-line headless verify test
tests/README.md	Entry for the new test

Verify results (real browser, not mocked):

✓ wave advanced by 1 after 100 kills
✓ killsRemainingToWave reset to 100 (killsPerWave)
✓ enemiesAlive > 0 after wave advance (FIELD PERSISTS)
✓ enemiesAlive stays within MAX_CONCURRENT (post-tick)

=== ALL PASS ===

Pre-boundary: 20 alive. At the 100-kill boundary: wave advanced 1→2, field still at 20 alive (would’ve been 0 before this commit). safety iterations: 100 confirms 100 real kills drove the boundary, not a mocked counter.

Screenshot of the post-boundary field (20 commons/strongs alive on wave 2):

Headless regression audit (the 5×-speed freeze scenario + fresh-boot scenario) also clean — no window.onerror, no pageerror, oil/kills still incrementing.

One thing worth flagging for later: I noted the Gem Market MAX_CONCURRENT card as a future unlock surface in the docstring comment. When you name the price curve I can wire it as a canPurchaseFn-gated card that mutates wm.opts.maxConcurrent. Until then it ships in the docstring only — no half-built stub.

Live build — kill 100 enemies and watch the field stay populated