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Add co-op dungeon system (party runs, voting, betting, gifts, items)
Multi-day party runs with funding decisions, TwinBee-narrated floor events, spectator parimutuel betting, basket/mimic gift system, and weighted-roll item distribution including masterwork drops at T4-T5. Schema (5 tables, 2 fewer than spec by computing helpfulness on-the-fly and skipping the loot-pending state): - coop_dungeon_runs / _members (daily funding as JSON column) - coop_dungeon_events (votes as JSON, used to derive TwinBee helpfulness) - coop_dungeon_bets / _gifts Mechanics: - 2-4 player parties, 24h invite window, locks consume one combat action - Per-floor success roll: base + sum(funding) + level/pet bonuses + event vote modifier + active gift modifiers, clamped to 5..95 - Funding tiers (none/min/std/agg/all_in) with liability cap at +8% for under-leveled players - TwinBee narrates events from existing flavor pool; 20 authored events with per-option modifiers and embedded recommendation - Parimutuel betting with 10% rake; odds line shown on lock/daily/status posts - Gift modifiers symmetric at 50/50 sender mix so no dominant strategy - Item drops on success via weight-by-contribution roll; T4 25% / T5 100% masterwork chance (random pick from existing T4/T5 defs) Balance via Monte Carlo (coop_dungeon_balance_test.go): - All tiers exceed 1.5x solo daily income at average party profile - Optimal funding strategy walks up tiers correctly (Min/Std/Std/Mixed/Agg) - All-In stays -EV at every tier (boost lever, not optimal play) Tests: parsing, liability cap, JSON roundtrips, vote tally with leader tiebreak, event meta consistency, parimutuel payouts, gift EV symmetry, weighted-roll distribution (Monte Carlo), masterwork tier gates. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
prosolis
203
internal/plugin/coop_event_meta.go
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203
internal/plugin/coop_event_meta.go
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package plugin
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import (
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"math/rand/v2"
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"strings"
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)
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// Metadata for each TwinBee floor event. Encodes the per-option success
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// modifiers and TwinBee's recommendation. Authored by reading the flavor
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// entries — TwinBee's "wrong detail" hint usually points to which option is
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// actually correct.
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//
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// Modifier ranges: −15 (clearly bad) to +12 (clearly good). Sum across
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// options is roughly net-zero so randomly-voting parties don't trend +EV.
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type CoopEventCategory string
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const (
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CoopCatObstacle CoopEventCategory = "obstacle"
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CoopCatOpportunity CoopEventCategory = "opportunity"
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CoopCatCrisis CoopEventCategory = "crisis"
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CoopCatEncounter CoopEventCategory = "encounter"
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)
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type coopEventOption struct {
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label string
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modifier int
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}
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type coopEventMeta struct {
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options []coopEventOption
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recommended string // A/B/C — TwinBee's pick
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}
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// One entry per event in the corresponding flavor pool, in the same order.
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// Keep these arrays in sync with coop_flavor_twinbee.go.
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var coopObstacleMeta = []coopEventMeta{
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// 1. Cave-in: "definitely the left side" — too emphatic; clearing properly is right.
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{options: []coopEventOption{{"A", -8}, {"B", 0}, {"C", 12}}, recommended: "A"},
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// 2. Locked gate: "third tumbler might be a pressure plate" — A triggers it.
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{options: []coopEventOption{{"A", -12}, {"B", -3}, {"C", 10}}, recommended: "A"},
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// 3. Other party with axe: "axe is just decoration" — almost certainly not.
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{options: []coopEventOption{{"A", -15}, {"B", 8}, {"C", -5}}, recommended: "A"},
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// 4. Flooded section: "torches stopped twenty meters back" — water deeper than claimed.
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{options: []coopEventOption{{"A", -10}, {"B", 0}, {"C", 10}}, recommended: "A"},
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// 5. Collapsed bridge: "chains might be part of a trap" — they are.
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{options: []coopEventOption{{"A", -12}, {"B", 0}, {"C", 8}}, recommended: "A"},
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}
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var coopOpportunityMeta = []coopEventMeta{
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// 1. Vault: "scratches around the lock from previous attempts" — trapped.
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{options: []coopEventOption{{"A", -12}, {"B", 3}}, recommended: "A"},
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// 2. Side chamber: "shapes seem to be breathing" — they are. Mimics or worse.
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{options: []coopEventOption{{"A", -15}, {"B", 4}}, recommended: "A"},
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// 3. Wounded enemy with full pack: "one eye open, just how they sleep" — ambush.
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{options: []coopEventOption{{"A", -10}, {"B", 2}}, recommended: "A"},
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// 4. Unmarked door: "good feeling, ignore the smell" — TwinBee's right this time.
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{options: []coopEventOption{{"A", 10}, {"B", -3}}, recommended: "A"},
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// 5. Merchant Thom: usually fine to browse, sometimes a trap. Slight positive.
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{options: []coopEventOption{{"A", 6}, {"B", 0}}, recommended: "A"},
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}
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var coopCrisisMeta = []coopEventMeta{
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// 1. Trap, "left lever, definitely not the right one" — C (find another way) safest.
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{options: []coopEventOption{{"A", -10}, {"B", 5}, {"C", 8}}, recommended: "A"},
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// 2. Equipment corrosion: "load-bearing thing might be nothing" — pay to address.
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{options: []coopEventOption{{"A", 8}, {"B", -10}, {"C", 0}}, recommended: "A"},
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// 3. Separated party member, guard-room hint: TwinBee actually right that they went left;
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// Option C ("wait here") is fine too — cheaper and works.
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{options: []coopEventOption{{"A", 4}, {"B", -2}, {"C", 6}}, recommended: "A"},
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// 4. Something following, "consistent distance is reassuring" — predator pacing.
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// Pay the deterrent.
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{options: []coopEventOption{{"A", -8}, {"B", 8}, {"C", 0}}, recommended: "A"},
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// 5. Cave-in with "active" ceiling: pay to shore up.
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{options: []coopEventOption{{"A", -10}, {"B", 10}, {"C", -2}}, recommended: "A"},
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}
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var coopEncounterMeta = []coopEventMeta{
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// 1. Guardian, "twelve seconds two out of three times" — timing window unreliable.
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{options: []coopEventOption{{"A", 4}, {"B", 6}, {"C", -10}}, recommended: "C"},
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// 2. Caged person, "alarm is decorative" — usually not. Trap, but freeing them is right ~half the time.
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{options: []coopEventOption{{"A", 2}, {"B", -3}, {"C", 5}}, recommended: "A"},
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// 3. Sleeping guard, second guard reflected in shiny — there's a second guard.
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{options: []coopEventOption{{"A", -10}, {"B", 0}, {"C", 6}}, recommended: "A"},
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// 4. Recurring merchant Thom — keep moving avoids whatever shenanigans.
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{options: []coopEventOption{{"A", 2}, {"B", -5}, {"C", 4}}, recommended: "A"},
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// 5. Unidentifiable thing — backing away is the safe call.
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{options: []coopEventOption{{"A", -8}, {"B", -2}, {"C", 8}}, recommended: "C"},
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}
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func coopEventCategoryMeta(cat CoopEventCategory) []coopEventMeta {
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switch cat {
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case CoopCatObstacle:
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return coopObstacleMeta
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case CoopCatOpportunity:
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return coopOpportunityMeta
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case CoopCatCrisis:
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return coopCrisisMeta
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case CoopCatEncounter:
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return coopEncounterMeta
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}
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return nil
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}
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func coopEventCategoryFlavor(cat CoopEventCategory) []string {
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switch cat {
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case CoopCatObstacle:
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return TwinBeeObstacle
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case CoopCatOpportunity:
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return TwinBeeOpportunity
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case CoopCatCrisis:
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return TwinBeeCrisis
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case CoopCatEncounter:
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return TwinBeeEncounter
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}
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return nil
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}
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// pickCoopEventCategory weights categories by tier. Lower tiers favor obstacle
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// and opportunity (lighter); higher tiers weight toward crisis and encounter.
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func pickCoopEventCategory(tier int) CoopEventCategory {
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weights := map[int]map[CoopEventCategory]int{
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1: {CoopCatObstacle: 5, CoopCatOpportunity: 4, CoopCatCrisis: 1, CoopCatEncounter: 1},
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2: {CoopCatObstacle: 4, CoopCatOpportunity: 3, CoopCatCrisis: 2, CoopCatEncounter: 2},
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3: {CoopCatObstacle: 3, CoopCatOpportunity: 3, CoopCatCrisis: 3, CoopCatEncounter: 2},
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4: {CoopCatObstacle: 2, CoopCatOpportunity: 2, CoopCatCrisis: 4, CoopCatEncounter: 3},
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5: {CoopCatObstacle: 2, CoopCatOpportunity: 2, CoopCatCrisis: 4, CoopCatEncounter: 4},
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}
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w, ok := weights[tier]
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if !ok {
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w = weights[3]
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}
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total := 0
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for _, x := range w {
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total += x
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}
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r := rand.IntN(total)
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for cat, x := range w {
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if r < x {
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return cat
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}
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r -= x
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}
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return CoopCatObstacle
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}
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// pickCoopEvent returns a random event index for the category.
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func pickCoopEvent(cat CoopEventCategory) int {
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pool := coopEventCategoryMeta(cat)
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if len(pool) == 0 {
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return 0
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}
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return rand.IntN(len(pool))
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}
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// optionLabels returns the label list for an event ("A","B" or "A","B","C").
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func coopEventOptionLabels(cat CoopEventCategory, idx int) []string {
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pool := coopEventCategoryMeta(cat)
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if idx >= len(pool) {
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return []string{"A", "B"}
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}
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out := make([]string, 0, len(pool[idx].options))
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for _, opt := range pool[idx].options {
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out = append(out, opt.label)
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}
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return out
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}
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// optionModifier returns the success modifier for the chosen option, or 0 if
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// the option is unknown.
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func coopEventOptionModifier(cat CoopEventCategory, idx int, label string) int {
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pool := coopEventCategoryMeta(cat)
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if idx >= len(pool) {
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return 0
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}
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for _, opt := range pool[idx].options {
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if opt.label == label {
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return opt.modifier
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}
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}
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return 0
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}
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// recommendedOption returns TwinBee's pick for the event.
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func coopEventRecommended(cat CoopEventCategory, idx int) string {
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pool := coopEventCategoryMeta(cat)
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if idx >= len(pool) {
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return "A"
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}
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return pool[idx].recommended
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}
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// validateCoopVote uppercases and validates a vote against the available options.
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func validateCoopVote(cat CoopEventCategory, idx int, raw string) (string, bool) {
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v := strings.ToUpper(strings.TrimSpace(raw))
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for _, label := range coopEventOptionLabels(cat, idx) {
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if v == label {
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return v, true
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}
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}
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return "", false
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}
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