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Adv 2.0 D&D Phase 11 D4b: Tier 3-5 trap catalog

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Adds tier3TrapCatalog (Antimagic Field, Necrotic Miasma, Symbol of
Death, Planar Rift) per design doc §6 Tier 3-5 table. Tiers 3, 4,
and 5 share this pool — the doc lumps them together. Antimagic
Field uses a new SuppressesMagic flag (no damage, narrative
suppression beat); the other three deliver dice damage and skip
the unmodelled secondary effects (max-HP debuff, drop-to-0,
teleport) for a later phase.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
prosolis
2026-05-08 13:26:22 -07:00
parent 61b7fff9e2
commit 8eaada5c1b
2 changed files with 203 additions and 7 deletions
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119
internal/plugin/dnd_zone_combat_test.go
View File

@@ -388,6 +388,125 @@ func TestRollTrapDamage_TripwireZero(t *testing.T) {
}
}
// ── Phase 11 D4b — Tier 3 trap catalog ──────────────────────────────────────
func TestPickZoneTrap_Tier3UsesTier3Catalog(t *testing.T) {
zone, ok := getZone(ZoneManorBlackspire)
if !ok {
t.Fatal("manor_blackspire zone missing")
}
if zone.Tier != ZoneTierJourneyman {
t.Fatalf("manor_blackspire expected tier 3, got %d", zone.Tier)
}
seen := map[ZoneTrapKind]bool{}
for room := 0; room < 64; room++ {
tr, ok := pickZoneTrap(zone, "t3-run", room)
if !ok {
t.Fatalf("pickZoneTrap !ok at room %d", room)
}
if tr.Tier != ZoneTierJourneyman {
t.Errorf("tier 3 zone picked tier %d trap (%s)", tr.Tier, tr.Kind)
}
seen[tr.Kind] = true
}
if len(seen) < 2 {
t.Errorf("expected variety across 64 rooms in tier 3, only saw %d kinds: %v", len(seen), seen)
}
}
func TestTier3TrapCatalog_AllValid(t *testing.T) {
if len(tier3TrapCatalog) < 4 {
t.Fatalf("tier 3 catalog should have at least 4 traps, got %d", len(tier3TrapCatalog))
}
for _, tr := range tier3TrapCatalog {
if tr.Tier != ZoneTierJourneyman {
t.Errorf("trap %s tagged tier %d, expected 3", tr.Kind, tr.Tier)
}
if tr.Display == "" || tr.Trigger == "" {
t.Errorf("trap %s missing display/trigger text", tr.Kind)
}
nonDamaging := tr.AlertsEnemies || tr.SuppressesMagic
if !nonDamaging && (tr.DamageDiceN == 0 || tr.DamageDiceD == 0) {
t.Errorf("trap %s deals no damage and is not alarm/suppression", tr.Kind)
}
if tr.DetectDC < 16 {
t.Errorf("trap %s detect DC %d looks tier 2; tier 3 should be 16+", tr.Kind, tr.DetectDC)
}
}
}
func TestRollTrapDamage_NecroticMiasmaIn6d6Range(t *testing.T) {
var miasma zoneTrapDef
for _, tr := range tier3TrapCatalog {
if tr.Kind == TrapNecroticMiasma {
miasma = tr
break
}
}
if miasma.Kind != TrapNecroticMiasma {
t.Fatal("necrotic miasma not in tier 3 catalog")
}
for room := 0; room < 64; room++ {
dmg := rollTrapDamage(miasma, "miasma-run", room)
if dmg < 6 || dmg > 36 { // 6d6 range
t.Errorf("miasma damage out of 6..36 range at room %d: %d", room, dmg)
}
}
}
func TestRollTrapDamage_AntimagicFieldZero(t *testing.T) {
var anti zoneTrapDef
for _, tr := range tier3TrapCatalog {
if tr.Kind == TrapAntimagicField {
anti = tr
break
}
}
if anti.Kind != TrapAntimagicField {
t.Fatal("antimagic field not in tier 3 catalog")
}
if dmg := rollTrapDamage(anti, "any-run", 0); dmg != 0 {
t.Errorf("antimagic field should deal 0 damage, got %d", dmg)
}
}
func TestZoneTrapRoom_AntimagicFieldNoHPLoss(t *testing.T) {
setupAuditTestDB(t)
uid := id.UserID("@zone-trap-antimagic:example")
zoneCmdTestCharacter(t, uid, 5)
defer cleanupZoneRuns(uid)
run, err := startZoneRun(uid, ZoneManorBlackspire, 5, nil)
if err != nil {
t.Fatal(err)
}
zone, _ := getZone(ZoneManorBlackspire)
dndChar, _ := LoadDnDCharacter(uid)
startHP := dndChar.HPCurrent
var anti zoneTrapDef
for _, tr := range tier3TrapCatalog {
if tr.Kind == TrapAntimagicField {
anti = tr
break
}
}
p := &AdventurePlugin{}
dmg, narration := p.applyTrapEffectWithDetect(uid, run, zone, dndChar, anti,
failedDetect(anti.DetectSkill, anti.DetectDC))
if dmg != 0 {
t.Errorf("antimagic field should deal 0 damage even on fail, got %d", dmg)
}
if !strings.Contains(narration, "Antimagic") {
t.Errorf("antimagic narration missing trap name: %q", narration)
}
c, _ := LoadDnDCharacter(uid)
if c.HPCurrent != startHP {
t.Errorf("antimagic field should not change HP: cur=%d, want=%d", c.HPCurrent, startHP)
}
}
func TestRollZoneLoot_BossLootDrops(t *testing.T) {
setupAuditTestDB(t)
uid := id.UserID("@zone-loot:example")

91
internal/plugin/dnd_zone_traps.go
View File

@@ -27,6 +27,10 @@ const (
TrapFlameJet ZoneTrapKind = "flame_jet"
TrapCollapsingCeil ZoneTrapKind = "collapsing_ceiling"
TrapGlyphOfWarding ZoneTrapKind = "glyph_of_warding"
TrapAntimagicField ZoneTrapKind = "antimagic_field"
TrapNecroticMiasma ZoneTrapKind = "necrotic_miasma"
TrapSymbolOfDeath ZoneTrapKind = "symbol_of_death"
TrapPlanarRift ZoneTrapKind = "planar_rift"
)
// zoneTrapDef — static definition of a zone trap. Damage dice are in
@@ -40,10 +44,11 @@ type zoneTrapDef struct {
DetectDC int
DamageDiceN int // 0 if no direct damage
DamageDiceD int // sides
DamageType string // "bludgeoning", "piercing", "poison", ...
AlertsEnemies bool // tripwire-class: 0 damage, raises alarm
Tier ZoneTier
Weight int // 1..10, default 5
DamageType string // "bludgeoning", "piercing", "poison", ...
AlertsEnemies bool // tripwire-class: 0 damage, raises alarm
SuppressesMagic bool // antimagic-class: 0 damage, narrative suppression
Tier ZoneTier
Weight int // 1..10, default 5
}
// tier1TrapCatalog — design doc §6 Tier 1 table.
@@ -126,14 +131,83 @@ var tier2TrapCatalog = []zoneTrapDef{
},
}
// trapsByTier returns all traps registered at the given tier. Tier 3+
// catalogs append to this switch in later sub-phases (D4a).
// tier3TrapCatalog — design doc §6 Tier 3–5 table. The doc lumps all
// high-tier traps into a single list, so tiers 3, 4, and 5 share this
// pool. Two of the four entries (Antimagic Field, Symbol of Death) have
// effects that don't fit the dice-only damage model:
//
// - Antimagic Field: no damage; SuppressesMagic flag flips the
// narration to a non-damaging suppression beat. The actual
// spell-suppression mechanic is left to a later phase — for now
// the line tells the player magic is choked in this room.
// - Necrotic Miasma: design doc says "6d6 + max HP -10 until long
// rest". The max-HP debuff isn't modeled here; trap delivers the
// 6d6 necrotic damage only.
// - Symbol of Death: doc reads "INT DC 20 or drop to 0 HP". We
// approximate with 8d10 psychic; the existing near-KO cap in
// applyTrapEffectWithDetect prevents an outright kill.
// - Planar Rift: 4d10 psychic. The teleport-to-random-room mechanic
// isn't modeled — trap just deals psychic damage for now.
var tier3TrapCatalog = []zoneTrapDef{
{
Kind: TrapAntimagicField,
Display: "Antimagic Field",
Trigger: "the air thickens and every charm at your belt goes cold",
DetectSkill: SkillArcana,
DetectDC: 18,
SuppressesMagic: true,
Tier: ZoneTierJourneyman,
Weight: 3,
},
{
Kind: TrapNecroticMiasma,
Display: "Necrotic Miasma",
Trigger: "the sarcophagus lid shifts and a green-black fume pours out",
DetectSkill: SkillPerception,
DetectDC: 16,
DamageDiceN: 6,
DamageDiceD: 6,
DamageType: "necrotic",
Tier: ZoneTierJourneyman,
Weight: 5,
},
{
Kind: TrapSymbolOfDeath,
Display: "Symbol of Death",
Trigger: "an inscribed sigil flares and your vision blanks to white",
DetectSkill: SkillInvestigation,
DetectDC: 20,
DamageDiceN: 8,
DamageDiceD: 10,
DamageType: "psychic",
Tier: ZoneTierJourneyman,
Weight: 2,
},
{
Kind: TrapPlanarRift,
Display: "Planar Rift",
Trigger: "the floor folds wrong and a tear of starless dark grasps at you",
DetectSkill: SkillArcana,
DetectDC: 20,
DamageDiceN: 4,
DamageDiceD: 10,
DamageType: "psychic",
Tier: ZoneTierJourneyman,
Weight: 3,
},
}
// trapsByTier returns all traps registered at the given tier. Tiers 3,
// 4, and 5 share the Tier 3 catalog per the design doc's combined
// "Tier 3–5 Traps" table; later phases may split them.
func trapsByTier(t ZoneTier) []zoneTrapDef {
switch t {
case ZoneTierBeginner:
return tier1TrapCatalog
case ZoneTierApprentice:
return tier2TrapCatalog
case ZoneTierJourneyman, ZoneTierVeteran, ZoneTierLegendary:
return tier3TrapCatalog
}
return nil
}
@@ -190,7 +264,7 @@ func zoneTrapSelectorHash(runID string, roomIdx int) uint64 {
// here; the design-doc CON DC 11 save is folded into the same dice pool
// as a flattened average.
func rollTrapDamage(tr zoneTrapDef, runID string, roomIdx int) int {
if tr.AlertsEnemies || tr.DamageDiceN == 0 || tr.DamageDiceD == 0 {
if tr.AlertsEnemies || tr.SuppressesMagic || tr.DamageDiceN == 0 || tr.DamageDiceD == 0 {
return 0
}
rng := rand.New(rand.NewPCG(zoneTrapSelectorHash(runID, roomIdx), 0x712D2A))
@@ -207,6 +281,9 @@ func trapDamageHeader(tr zoneTrapDef, dmg int, hpCur, hpMax int) string {
if tr.AlertsEnemies {
return fmt.Sprintf("🔔 **%s** — %s. The next room knows you're here.", tr.Display, tr.Trigger)
}
if tr.SuppressesMagic {
return fmt.Sprintf("🚫 **%s** — %s. Spells fizzle and enchanted gear sleeps until you leave the room.", tr.Display, tr.Trigger)
}
dice := fmt.Sprintf("%dd%d", tr.DamageDiceN, tr.DamageDiceD)
return fmt.Sprintf("💢 **%s** (%s %s) — **%d HP** (%d/%d remaining).",
tr.Display, dice, tr.DamageType, dmg, hpCur, hpMax)