feat: implement Active Disciplines system

src/lib/game/effects/discipline-effects.ts

@@ -0,0 +1,49 @@
+// ─── Discipline Effects ───────────────────────────────────────────────────────
+// Computes bonuses from active disciplines and integrates with the unified effect system
+
+import type { GameState } from '../types';
+import { useDisciplineStore } from '../stores/discipline-slice';
+import { ALL_DISCIPLINES } from '../data/disciplines';
+import { calculateStatBonus, getUnlockedPerks } from '../utils/discipline-math';
+
+export function computeDisciplineEffects(state: GameState): {
+  bonuses: Record<string, number>;
+  multipliers: Record<string, number>;
+  specials: Set<string>;
+} {
+  const { disciplines } = useDisciplineStore.getState();
+  const activeDiscs = Object.entries(disciplines)
+    .filter(([, disc]) => disc && !disc.paused)
+    .map(([id, disc]) => ({ id, disc, def: ALL_DISCIPLINES.find(d => d.id === id) }))
+    .filter((entry): entry is { id: string; disc: any; def: NonNullable<typeof ALL_DISCIPLINES[0]> } => !!entry.def);
+
+  const bonuses: Record<string, number> = {};
+  const multipliers: Record<string, number> = {};
+  const specials = new Set<string>();
+
+  for (const { disc, def } of activeDiscs) {
+    // Continuous stat bonus
+    const statBonus = calculateStatBonus(def.statBonus.baseValue, disc.xp, def.scalingFactor);
+    if (def.statBonus.stat) {
+      bonuses[def.statBonus.stat] = (bonuses[def.statBonus.stat] || 0) + statBonus;
+    }
+
+    // Perk unlocks
+    const perks = getUnlockedPerks(def, disc.xp);
+    for (const perk of perks) {
+      if (perk.type === 'once' || perk.type === 'infinite') {
+        // Once/infinite perks can be treated as additive bonuses or special flags
+        // For simplicity, we add them as a special flag; actual effect depends on perk.id
+        specials.add(perk.id);
+      } else if (perk.type === 'capped') {
+        // Capped perks act as multipliers after certain thresholds
+        // For now, we treat them as additive to a multiplier stat (example)
+        // In a real implementation, each perk would have a specific effect.
+        // Here we just add a generic perk multiplier placeholder.
+        multipliers[`perk_${perk.id}`] = (multipliers[`perk_${perk.id}`] || 1) + perk.value / 100;
+      }
+    }
+  }
+
+  return { bonuses, multipliers, specials };
+}