Release Healer Man 0.1.6

src/game/combatAuras.ts

@@ -143,6 +143,16 @@ export interface AuraDefinition {
   readonly stackBehavior?: AuraStackBehavior;
   /** Defaults to true. False makes applications from all sources share one aura. */
   readonly uniqueBySource?: boolean;
+  /** A target can have only one aura from an exclusive stance/form/seal/etc. group. */
+  readonly exclusiveGroup?: string;
+  /** Explicit non-numeric gameplay state such as stealth, tracking, flight, or water walking. */
+  readonly utilityTags?: readonly string[];
+  /** Enemy control mechanics ignored while this aura is active. */
+  readonly controlImmunities?: readonly ("fear" | "sleep" | "root" | "stun" | "silence")[];
+  /** Chance from 0 through 1 to reflect an incoming spell. */
+  readonly reflectSpellChance?: number;
+  /** Portion of incoming target damage transferred to the aura source. */
+  readonly redirectDamagePercent?: number;
   readonly dispelCategory?: DispelCategory;
   readonly dispelPriority?: number;
   readonly modifiers?: readonly AuraModifier[];
@@ -309,14 +319,25 @@ export function applyAura(
   const maxStacks = boundedPositiveInteger(definition.maxStacks, 1);
   const requestedStacks = Math.min(maxStacks, boundedPositiveInteger(request.stacks, 1));
   const instanceId = auraIdentity(definition, request.sourceId, request.targetId);
-  const existingIndex = current.findIndex((aura) => aura.instanceId === instanceId);
+  const exclusive = definition.exclusiveGroup
+    ? current.filter((aura) => (
+        aura.targetId === request.targetId
+        && aura.definition.exclusiveGroup === definition.exclusiveGroup
+        && aura.instanceId !== instanceId
+      ))
+    : [];
+  const exclusiveIds = new Set(exclusive.map((aura) => aura.instanceId));
+  const base = exclusiveIds.size > 0
+    ? current.filter((aura) => !exclusiveIds.has(aura.instanceId))
+    : current;
+  const existingIndex = base.findIndex((aura) => aura.instanceId === instanceId);
 
   if (existingIndex < 0) {
     const aura = makeAura(request, requestedStacks);
-    return { auras: [...current, aura], aura };
+    return { auras: [...base, aura], aura, ...(exclusive[0] ? { replaced: exclusive[0] } : {}) };
   }
 
-  const existing = current[existingIndex];
+  const existing = base[existingIndex];
   const behavior = definition.stackBehavior ?? "refresh";
   const stacks = behavior === "add"
     ? Math.min(maxStacks, existing.stacks + requestedStacks)
@@ -333,7 +354,7 @@ export function applyAura(
         procStates: existing.procStates,
       }
     : replacement;
-  const auras = [...current];
+  const auras = [...base];
   auras[existingIndex] = aura;
   return { auras, aura, replaced: existing };
 }