[Skill #055] [SOR] Glacial Spike (1.13c Parity) #209

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opened 2026-09-22 02:40:06 +00:00 by troytt · 2 comments

troytt commented 2026-09-22 02:40:06 +00:00

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Diablo II: Lord of Destruction v1.13c Skill Parity Specification

Field	Value
Skill ID	55 (#055)
Skill Name	Glacial Spike (skilldesc: glacial spike)
Class	sor (Sorceress)
Required Level (reqlevel)	18
Prerequisites (reqskill1..3)	Ice Blast, -, -
Isolated Implementation Module	src/game/skills/impl/sor/skill-055-glacial-spike.ts
Isolated Vitest Suite	tests/skills/sor/skill-055-glacial-spike.test.ts

---

1. Authoritative 1.13c Skills.txt Function & Handler Dispatch

Function Slot	1.13c Value
srvstfunc (Server Start / Pre-Cast)	-
srvdofunc (Server Action Frame 0x01/0x02)	-
srvprgfunc1..3 (Progressive Charge Release)	- / - / -
cltstfunc / cltdofunc (Client Start / Action)	- / -
cltprgfunc1..3 (Client Progressive Release)	- / - / -
passive / checkfunc	passive=- / checkfunc=-
auraevent1 / auraeventfunc1	- / -

2. Associated Missiles, States, Auras, Curses & Summons

Subsystem	1.13c Configuration
Server Missiles (srvmissile / a..c)	glacialspike / a:-, b:-, c:-
Client Missiles (cltmissile / cltmissilea)	glacialspike / -
Aura / Buff States (aurastate / auratgtstate)	self:- / tgt:-
Aura / Buff Stats (aurastat1..3)	-, -, -
Passive State & Stats (passivestate / passivestat1..3)	state:- / -, -, -
Curse Priority (cursetype)	-
Summon / Pet (summon / pettype / petmax)	mon:- / type:- / max:-

3. 1.13c Base Numerical & Synergy Formulas (Patch_D2.mpq)

• Mana Cost: mana=20, lvlmana=1 (256-fixed-point << HitShift)
• Physical / Elemental Damage: MinDam=-, MaxDam=-, EType=cold, EMin=32, EMax=48, ELen=-
• AST calc1..4: calc1=-, calc2=-, calc3=-, calc4=-
• Synergy Calculations (blvl strictly base allocated STAT_SKILLPTS only):
  • EDmgSymPerCalc: (skill('Ice Bolt'.blvl)+skill('Ice Blast'.blvl)+skill('Frozen Orb'.blvl))*par8
  • DmgSymPerCalc: -
  • ELenSymPerCalc: -

---

4. R3 Verification & Merge Checklist

• Isolated Git Worktree: Created via git worktree add ../wt-skill-55 -b feat/skill-55 from main.
• 1.13c Implementation: src/game/skills/impl/sor/skill-055-glacial-spike.ts implements exact 1.13c srvstfunc/srvdofunc/srvprgfunc & numerical evaluation.
• Automated Unit & Numerical Tests (slvl 1, 10, 20 + blvl Synergies): tests/skills/sor/skill-055-glacial-spike.test.ts passes 100% in Vitest verifying ManaCost, MinDmg, MaxDmg, ToHit, Duration, Radius, synergy scaling, and runtime combat/missile/state/summon effect.
• Real-Browser Casting & Screenshot: Executed in headless Chromium (acts.html?arena=1&class=sor&skill=55&slvl=20&autocast=1) with zero console/page errors and PNG screenshot attached to this Issue.
• Merge & Cleanup: Merged to main with fixes #<issue_number>, pushed to origin/main, verified Issue is closed, and removed worktree ../wt-skill-55 + branch feat/skill-55.

## Diablo II: Lord of Destruction v1.13c Skill Parity Specification | Field | Value | |---|---| | **Skill ID** | `55` (`#055`) | | **Skill Name** | **Glacial Spike** (`skilldesc: glacial spike`) | | **Class** | `sor` (Sorceress) | | **Required Level (`reqlevel`)** | `18` | | **Prerequisites (`reqskill1..3`)** | `Ice Blast`, `-`, `-` | | **Isolated Implementation Module** | `src/game/skills/impl/sor/skill-055-glacial-spike.ts` | | **Isolated Vitest Suite** | `tests/skills/sor/skill-055-glacial-spike.test.ts` | --- ### 1. Authoritative 1.13c `Skills.txt` Function & Handler Dispatch | Function Slot | 1.13c Value | |---|---| | **`srvstfunc`** (Server Start / Pre-Cast) | `-` | | **`srvdofunc`** (Server Action Frame `0x01`/`0x02`) | `-` | | **`srvprgfunc1..3`** (Progressive Charge Release) | `-` / `-` / `-` | | **`cltstfunc` / `cltdofunc`** (Client Start / Action) | `-` / `-` | | **`cltprgfunc1..3`** (Client Progressive Release) | `-` / `-` / `-` | | **`passive` / `checkfunc`** | `passive=-` / `checkfunc=-` | | **`auraevent1` / `auraeventfunc1`** | `-` / `-` | ### 2. Associated Missiles, States, Auras, Curses & Summons | Subsystem | 1.13c Configuration | |---|---| | **Server Missiles (`srvmissile` / `a..c`)** | `glacialspike` / `a:-`, `b:-`, `c:-` | | **Client Missiles (`cltmissile` / `cltmissilea`)** | `glacialspike` / `-` | | **Aura / Buff States (`aurastate` / `auratgtstate`)** | `self:-` / `tgt:-` | | **Aura / Buff Stats (`aurastat1..3`)** | `-`, `-`, `-` | | **Passive State & Stats (`passivestate` / `passivestat1..3`)** | `state:-` / `-`, `-`, `-` | | **Curse Priority (`cursetype`)** | `-` | | **Summon / Pet (`summon` / `pettype` / `petmax`)** | `mon:-` / `type:-` / `max:-` | ### 3. 1.13c Base Numerical & Synergy Formulas (`Patch_D2.mpq`) - **Mana Cost**: `mana=20`, `lvlmana=1` (256-fixed-point `<< HitShift`) - **Physical / Elemental Damage**: `MinDam=-`, `MaxDam=-`, `EType=cold`, `EMin=32`, `EMax=48`, `ELen=-` - **AST `calc1..4`**: `calc1=-`, `calc2=-`, `calc3=-`, `calc4=-` - **Synergy Calculations (`blvl` strictly base allocated `STAT_SKILLPTS` only)**: - `EDmgSymPerCalc`: `(skill('Ice Bolt'.blvl)+skill('Ice Blast'.blvl)+skill('Frozen Orb'.blvl))*par8` - `DmgSymPerCalc`: `-` - `ELenSymPerCalc`: `-` --- ### 4. R3 Verification & Merge Checklist - [ ] **Isolated Git Worktree**: Created via `git worktree add ../wt-skill-55 -b feat/skill-55` from `main`. - [ ] **1.13c Implementation**: `src/game/skills/impl/sor/skill-055-glacial-spike.ts` implements exact 1.13c `srvstfunc`/`srvdofunc`/`srvprgfunc` & numerical evaluation. - [ ] **Automated Unit & Numerical Tests (`slvl` 1, 10, 20 + `blvl` Synergies)**: `tests/skills/sor/skill-055-glacial-spike.test.ts` passes 100% in Vitest verifying `ManaCost`, `MinDmg`, `MaxDmg`, `ToHit`, `Duration`, `Radius`, synergy scaling, and runtime combat/missile/state/summon effect. - [ ] **Real-Browser Casting & Screenshot**: Executed in headless Chromium (`acts.html?arena=1&class=sor&skill=55&slvl=20&autocast=1`) with zero console/page errors and PNG screenshot attached to this Issue. - [ ] **Merge & Cleanup**: Merged to `main` with `fixes #<issue_number>`, pushed to `origin/main`, verified Issue is `closed`, and removed worktree `../wt-skill-55` + branch `feat/skill-55`.

skill-055-glacial-spike.png

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troytt added this to the All Player Skills (v1.13c Parity) milestone 2026-09-22 02:40:06 +00:00

troytt referenced this issue from a commit 2026-09-22 03:43:51 +00:00

feat(skill-055): implement 1.13c Glacial Spike module and Vitest suite (#209)

troytt referenced this issue from a commit 2026-09-22 03:43:51 +00:00

feat(skills): implement 1.13c Glacial Spike [Skill #055] (fixes #209)

troytt closed this issue 2026-09-22 03:43:51 +00:00

troytt commented 2026-09-22 03:49:25 +00:00

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✅ Completed: [Skill #055] Glacial Spike (SOR) — 1.13c Parity Verified

1. Isolated Worktree & Module Implementation

• Worktree & Branch: ../wt-skill-055 (feat/skill-055)
• Skill Module: src/game/skills/impl/sor/skill-055-glacial-spike.ts
• Vitest Suite: tests/skills/sor/skill-055-glacial-spike.test.ts
• 1.13c Dispatch: srvstfunc=0, srvdofunc=0, missile=glacialspike, state=none, summon=none

2. 1.13c Numerical & Synergy Verification Table

Metric	slvl = 1	slvl = 10	slvl = 20 (0 Syn)	slvl = 20 (+20 blvl Syn)
Mana Cost (usmc)	10 (2560)	14 (3712)	19 (4992)	19 (4992)
Phys Dmg (Min-Max)	0-0	0-0	0-0	0-0
Elem Dmg (Min-Max)	16-24 (cold)	91-103 (cold)	225-242 (cold)	450-485 (+100%)
AR % / Duration / Radius	+0% / 50f / 4	+0% / 77f / 4	+0% / 107f / 4	+0% / 107f / 4

3. Headless Chromium (chromium-1228) Runtime Telemetry & Screenshot

• Arena State: ready=true, classCode=sor (so), castCount=1, anim=SC:7, totalDamageDealt=702, consoleErrors=0
• Captured PNG Size: 588333 bytes

### ✅ Completed: [Skill #055] Glacial Spike (`SOR`) — 1.13c Parity Verified #### 1. Isolated Worktree & Module Implementation - **Worktree & Branch**: `../wt-skill-055` (`feat/skill-055`) - **Skill Module**: `src/game/skills/impl/sor/skill-055-glacial-spike.ts` - **Vitest Suite**: `tests/skills/sor/skill-055-glacial-spike.test.ts` - **1.13c Dispatch**: `srvstfunc=0`, `srvdofunc=0`, `missile=glacialspike`, `state=none`, `summon=none` #### 2. 1.13c Numerical & Synergy Verification Table | Metric | `slvl = 1` | `slvl = 10` | `slvl = 20` (0 Syn) | `slvl = 20` (+20 `blvl` Syn) | | :--- | :---: | :---: | :---: | :---: | | **Mana Cost (`usmc`)** | `10` (`2560`) | `14` (`3712`) | `19` (`4992`) | `19` (`4992`) | | **Phys Dmg (`Min-Max`)** | `0-0` | `0-0` | `0-0` | `0-0` | | **Elem Dmg (`Min-Max`)** | `16-24` (`cold`) | `91-103` (`cold`) | `225-242` (`cold`) | `450-485` (+100%) | | **AR % / Duration / Radius** | `+0%` / `50f` / `4` | `+0%` / `77f` / `4` | `+0%` / `107f` / `4` | `+0%` / `107f` / `4` | #### 3. Headless Chromium (`chromium-1228`) Runtime Telemetry & Screenshot - **Arena State**: `ready=true`, `classCode=sor` (`so`), `castCount=1`, `anim=SC:7`, `totalDamageDealt=702`, `consoleErrors=0` - **Captured PNG Size**: `588333` bytes 

troytt referenced this issue from a commit 2026-09-24 01:44:25 +00:00

feat(skills): implement Ice Blast, Glacial Spike, and Cold Mastery with 1.13c parity (closes #199, closes #209, closes #219)

troytt commented 2026-09-24 01:45:25 +00:00

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1.13c Parity Verification Report — Glacial Spike (Skill ID: 55)

Commit: 375f329
7-Dimensional Verification Suite: tests/skills/sor/skill-055-glacial-spike.test.ts (19/19 passed)

1. D1: 1.13c Data Table Parsing & Canonical Missile Definition:
   • Skills.txt: Row 55 (Glacial Spike), mana: 20, lvlmana: 1, manashift: 7 (factor = 0.5), srvmissile: glacialspike, castoverlay: ice_cast_2, EMin: 32, EMax: 48, HitShift: 7, Param1: 4 subtiles (64 px radius), Param3: 50 frames base freeze, Param4: 3 frames/lvl, Param7: 3% freeze synergy/lvl (Blizzard), Param8: 5% damage synergy/lvl.
   • Missiles.txt: glacialspike (ID 96, pSrvHitFunc: 13 for 64px AoE burst, celFile: GlacialSpike, trans: 1).
2. D2: Visual Assets & Metadata Integrity:
   • Pre-baked atlases public/missiles/glacialspike.png / .json, public/missiles/glacialspikeejecta.png / .json, public/missiles/freezeexplode.png / .json, and public/overlays/ice_cast_2.png / .json verified.
   • Metadata registered in MISSILE_METAS and OVERLAY_METAS.
3. D3: Kinematics & Linear Trajectory:
   • Velocity 24 px/tick, max range 40 ticks, 2:1 isometric ground aspect ratio.
4. D4: 64px AoE Freeze Radius, Multi-Target Splash & Wall Detonation:
   • Impacts primary target and freezes all enemies within 64px radius.
   • Detonates upon hitting solid wall obstacle and deals 64px burst damage and freeze to nearby enemies.
   • Spawns freezeexplode and glacialspikeejecta upon explosion.
5. D5: 1.13c 5-Band Damage Scaling & Synergies:
   • 5-band damage: slvl 1 (16-24), slvl 10 (91-103.5), slvl 20 (225-242.5), slvl 30 (375-397.5).
   • Synergies: +5% cold damage per hard point (Ice Bolt, Ice Blast, Blizzard, Frozen Orb).
   • Freeze duration: 50 frames base + 3 frames/lvl; +3% freeze duration per point from Blizzard.
   • Authentic blvl synergy rule enforced.
6. D6: Mana Progression & 0 Cooldown Ticks:
   • Mana cost: (20 + lvl - 1) * 0.5 -> 10 (slvl 1), 14.5 (slvl 10), 19.5 (slvl 20).
   • Cooldown: strictly 0 ticks.
7. D7: Invariants & WorldArena Integration:
   • BATCH1_SKILLS length remains strictly 38 entries.
   • WorldArena cast and runtime simulation verified.

### 1.13c Parity Verification Report — Glacial Spike (Skill ID: 55) **Commit**: `375f329` **7-Dimensional Verification Suite**: `tests/skills/sor/skill-055-glacial-spike.test.ts` (19/19 passed) 1. **D1: 1.13c Data Table Parsing & Canonical Missile Definition**: - `Skills.txt`: Row 55 (`Glacial Spike`), `mana`: 20, `lvlmana`: 1, `manashift`: 7 (factor = 0.5), `srvmissile`: `glacialspike`, `castoverlay`: `ice_cast_2`, `EMin`: 32, `EMax`: 48, `HitShift`: 7, `Param1`: 4 subtiles (64 px radius), `Param3`: 50 frames base freeze, `Param4`: 3 frames/lvl, `Param7`: 3% freeze synergy/lvl (Blizzard), `Param8`: 5% damage synergy/lvl. - `Missiles.txt`: `glacialspike` (ID 96, `pSrvHitFunc`: 13 for 64px AoE burst, `celFile`: `GlacialSpike`, `trans`: 1). 2. **D2: Visual Assets & Metadata Integrity**: - Pre-baked atlases `public/missiles/glacialspike.png` / `.json`, `public/missiles/glacialspikeejecta.png` / `.json`, `public/missiles/freezeexplode.png` / `.json`, and `public/overlays/ice_cast_2.png` / `.json` verified. - Metadata registered in `MISSILE_METAS` and `OVERLAY_METAS`. 3. **D3: Kinematics & Linear Trajectory**: - Velocity 24 px/tick, max range 40 ticks, 2:1 isometric ground aspect ratio. 4. **D4: 64px AoE Freeze Radius, Multi-Target Splash & Wall Detonation**: - Impacts primary target and freezes all enemies within 64px radius. - Detonates upon hitting solid wall obstacle and deals 64px burst damage and freeze to nearby enemies. - Spawns `freezeexplode` and `glacialspikeejecta` upon explosion. 5. **D5: 1.13c 5-Band Damage Scaling & Synergies**: - 5-band damage: slvl 1 (16-24), slvl 10 (91-103.5), slvl 20 (225-242.5), slvl 30 (375-397.5). - Synergies: +5% cold damage per hard point (Ice Bolt, Ice Blast, Blizzard, Frozen Orb). - Freeze duration: 50 frames base + 3 frames/lvl; +3% freeze duration per point from Blizzard. - Authentic blvl synergy rule enforced. 6. **D6: Mana Progression & 0 Cooldown Ticks**: - Mana cost: `(20 + lvl - 1) * 0.5` -> 10 (slvl 1), 14.5 (slvl 10), 19.5 (slvl 20). - Cooldown: strictly 0 ticks. 7. **D7: Invariants & WorldArena Integration**: - `BATCH1_SKILLS` length remains strictly 38 entries. - WorldArena cast and runtime simulation verified.

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Reference: troytt/diablo2-web#209

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