初始仓库迁移

src/data/economy.ts

@@ -0,0 +1,60 @@
+import { InventoryItem, WorldType } from '../types';
+
+const RARITY_BASE_VALUES: Record<InventoryItem['rarity'], number> = {
+  common: 12,
+  uncommon: 24,
+  rare: 48,
+  epic: 92,
+  legendary: 168,
+};
+
+export function getCurrencyName(worldType: WorldType | null) {
+  if (worldType === WorldType.XIANXIA) return '灵石';
+  if (worldType === WorldType.WUXIA) return '铜钱';
+  return '钱币';
+}
+
+export function getInitialPlayerCurrency(worldType: WorldType | null) {
+  return worldType === WorldType.XIANXIA ? 140 : 160;
+}
+
+export function getDiscountTierForAffinity(affinity: number) {
+  if (affinity >= 90) return 3;
+  if (affinity >= 60) return 2;
+  if (affinity >= 30) return 1;
+  return 0;
+}
+
+export function getInventoryItemValue(item: InventoryItem) {
+  if (typeof item.value === 'number' && Number.isFinite(item.value)) {
+    return Math.max(8, Math.round(item.value));
+  }
+
+  let value = RARITY_BASE_VALUES[item.rarity];
+
+  if (item.tags.includes('weapon')) value += 14;
+  if (item.tags.includes('armor')) value += 12;
+  if (item.tags.includes('relic')) value += 16;
+  if (item.tags.includes('mana')) value += 8;
+  if (item.tags.includes('healing')) value += 8;
+  if (item.tags.includes('material')) value += 4;
+  if (item.category.includes('专属')) value += 10;
+
+  return Math.max(8, value);
+}
+
+export function getNpcPurchasePrice(item: InventoryItem, affinity: number) {
+  const discountTier = getDiscountTierForAffinity(affinity);
+  const discountMultiplier = 1 - (discountTier * 0.08);
+  return Math.max(6, Math.round(getInventoryItemValue(item) * discountMultiplier));
+}
+
+export function getNpcBuybackPrice(item: InventoryItem, affinity: number) {
+  const discountTier = getDiscountTierForAffinity(affinity);
+  const buybackMultiplier = 0.4 + (discountTier * 0.06);
+  return Math.max(4, Math.round(getInventoryItemValue(item) * buybackMultiplier));
+}
+
+export function formatCurrency(value: number, worldType: WorldType | null) {
+  return `${value} ${getCurrencyName(worldType)}`;
+}