init with react+axum+spacetimedb

src/data/inventoryEffects.ts

@@ -0,0 +1,102 @@
+import { Character, InventoryItem, TimedBuildBuff } from "../types";
+
+export type InventoryUseEffect = {
+  hpRestore: number;
+  manaRestore: number;
+  cooldownReduction: number;
+  buildBuffs: TimedBuildBuff[];
+};
+
+function getRarityMultiplier(rarity: InventoryItem["rarity"]) {
+  switch (rarity) {
+    case "legendary":
+      return 2.4;
+    case "epic":
+      return 1.9;
+    case "rare":
+      return 1.55;
+    case "uncommon":
+      return 1.2;
+    default:
+      return 1;
+  }
+}
+
+export function isInventoryItemUsable(item: InventoryItem) {
+  return (
+    Boolean(item.useProfile) ||
+    item.tags.includes("healing") ||
+    item.tags.includes("mana")
+  );
+}
+
+export function resolveInventoryItemUseEffect(
+  item: InventoryItem,
+  character: Character,
+): InventoryUseEffect | null {
+  if (!isInventoryItemUsable(item)) return null;
+
+  if (item.useProfile) {
+    return {
+      hpRestore: item.useProfile.hpRestore ?? 0,
+      manaRestore: item.useProfile.manaRestore ?? 0,
+      cooldownReduction: item.useProfile.cooldownReduction ?? 0,
+      buildBuffs: item.useProfile.buildBuffs ?? [],
+    };
+  }
+
+  const rarityMultiplier = getRarityMultiplier(item.rarity);
+  const hasHealing =
+    item.tags.includes("healing") ||
+    /药|包|补给|恢复|疗伤|meat|apple|mushroom|water/i.test(item.name);
+  const hasMana =
+    item.tags.includes("mana") ||
+    /灵液|法力|mana|crystal|essence|spirit/i.test(item.name);
+
+  const hpRestore = hasHealing
+    ? Math.max(
+        10,
+        Math.round((14 + character.attributes.spirit * 1.4) * rarityMultiplier),
+      )
+    : 0;
+  const manaRestore = hasMana
+    ? Math.max(
+        8,
+        Math.round(
+          (12 + character.attributes.intelligence * 1.4) * rarityMultiplier,
+        ),
+      )
+    : 0;
+  const cooldownReduction = /凝神|回气|醒神|booster|essence/i.test(item.name)
+    ? 1
+    : 0;
+
+  if (hpRestore <= 0 && manaRestore <= 0 && cooldownReduction <= 0) {
+    return null;
+  }
+
+  return {
+    hpRestore,
+    manaRestore,
+    cooldownReduction,
+    buildBuffs: [],
+  };
+}
+
+export function buildInventoryUseResultText(
+  item: InventoryItem,
+  effect: InventoryUseEffect,
+) {
+  const parts = [
+    effect.hpRestore > 0 ? `恢复 ${effect.hpRestore} 点气血` : null,
+    effect.manaRestore > 0 ? `恢复 ${effect.manaRestore} 点灵力` : null,
+    effect.cooldownReduction > 0
+      ? `额外推进 ${effect.cooldownReduction} 回合冷却`
+      : null,
+    effect.buildBuffs.length > 0
+      ? `获得 ${effect.buildBuffs.map(buff => buff.name).join("、")}`
+      : null,
+  ].filter(Boolean);
+
+  return `你取出${item.name}立刻使用，${parts.join("，")}。`;
+}