HC Contract: No Petri

A self-contained Hardcore challenge addon for WoW Classic Era that lets you sign a public, verifiable contract to never use Flask of Petrification — and then enforces it, broadcasts it, and shames you if you break it.

The pitch

Flask of Petrification (item 13511) is the classic "get out of jail free" card on Hardcore — turn to stone, drop aggro, survive anything. This addon lets you publicly opt out of using it, proves to other players that you really did, and makes it socially painful to cheat.

What it does

Blocks the flask

• Wraps UseContainerItem, UseItemByName, CastSpellByID, CastSpellByName and hooks UseAction
• Catches every path you could use to drink Petrification (item 13511, spells 17626 / 17624)
• Pops a loud on-screen warning on each blocked attempt
• Throttled chat announce ("X just tried to sip Petri but the contract holds")

Detects violations (in case the block fails)

• Listens to UNIT_SPELLCAST_SUCCEEDED, COMBAT_LOG_EVENT_UNFILTERED (SPELL_CAST_SUCCESS / SPELL_AURA_APPLIED), UNIT_AURA
• A violation is permanent — no rollback, no /reload reset

Verifiable contract

• Sign with a typed "I SWEAR" confirmation
• Generates an 8-char verification token from playerGUID + signedAt via FNV-1a hash
• Token, sign timestamp, character level at signing — all stored and shareable
• Other players running the addon can verify you over addon comms

Public confession

On violation, fires a random fun message from a 7-template pool to:

• /say
• Guild
• Party / raid
• Every joined custom channel

Plus 4 throttled "blocked attempt" templates (guild + group only).

Peer verification

• HCNOPETRI addon channel comm protocol (STATUS|v1|... and REQ|v1)
• Auto-replies to !nopetri / !petri / !hcnopetri whispers
• Online peer cache (90s window)
• "Verify Players" scrollable list — click any peer to whisper-check them
• Manual whisper-by-name field

Visual touchpoints

• Status chip under your PlayerFrame (green ✓ CLEAN / red ✗ VIOLATED / grey ? UNSIGNED)
• Optional chip under TargetFrame (off by default)
• Tooltip line on any player you mouseover — NO PETRI Contract: CLEAN/VIOLATED/UNSIGNED + token
• Chat name icons — tiny check / cross next to known players in chat
• Standalone minimap button with status-colored pulse ring
• Themed contract dialog with wax-seal decoration

Options panel

Checkboxes for every toggle:

Slash commands

/nopetri              open the contract window
/nopetri sign         sign the contract
/nopetri status       print current status
/nopetri verify <name> ask another player for their status
/nopetri options      open the options panel
/nopetri minimap      toggle minimap button

Architecture

• Pure Lua, no Ace3, no LibDBIcon — fully self-contained
• SavedVariables: HC_NoPetriDB (account, peer cache + minimap state) and HC_NoPetriCharDB (per-character contract + status + settings)
• TOC: Interface 11500–11507 (all current Classic Era patch levels)
• Tooltip integration uses both legacy OnTooltipSetUnit and modern TooltipDataProcessor for forward compatibility
• Visual style: class-colored hairline borders, dark backdrops, ReadyCheck texture icons, gradient title bars