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assets/script/FruitConfig.ts

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+// assets/scripts/FruitConfig.ts
+import { SpriteFrame } from "cc";
+
+export interface FruitDef {
+  level: number; // 1..MAX
+  name: string;
+  radius: number; // 物理半径（像素）
+  score: number; // 合成到该等级获得的分数
+  sprite?: SpriteFrame; // 运行时由 GameManager 注入
+}
+
+export const MAX_LEVEL = 11; // 西瓜
+
+// 半径与分数可按手感微调（半径越大越难堆）
+export const FRUITS: FruitDef[] = [
+  { level: 1, name: "樱桃", radius: 26, score: 1 },
+  { level: 2, name: "草莓", radius: 30, score: 2 },
+  { level: 3, name: "葡萄", radius: 34, score: 4 },
+  { level: 4, name: "橘子", radius: 38, score: 8 },
+  { level: 5, name: "柠檬", radius: 44, score: 16 },
+  { level: 6, name: "猕猴桃", radius: 50, score: 24 },
+  { level: 7, name: "番茄", radius: 58, score: 36 },
+  { level: 8, name: "桃子", radius: 66, score: 48 },
+  { level: 9, name: "菠萝", radius: 74, score: 64 },
+  { level: 10, name: "哈密瓜", radius: 84, score: 96 },
+  { level: 11, name: "西瓜", radius: 96, score: 128 },
+];
+
+export function clampLevel(lv: number) {
+  if (lv < 1) return 1;
+  if (lv > MAX_LEVEL) return MAX_LEVEL;
+  return lv;
+}
+
+// export function randomStartLevel(min=1, max=5) {
+//   const a = Math.max(1, Math.min(MAX_LEVEL-1, min));
+//   const b = Math.max(a, Math.min(MAX_LEVEL-1, max));
+//   return Math.floor(Math.random() * (b - a + 1)) + a;
+// }
+
+export function randomStartLevel(
+  minLevel: number,
+  maxLevel: number,
+  score: number
+): number {
+  let level = Math.floor(Math.random() * (maxLevel - minLevel + 1)) + minLevel;
+
+  // 高分奖励机制：比如 score >= 50 时，有 20% 概率出现 maxLevel+1 的水果
+  if (score >= 800 && Math.random() < 0.2) {
+    level = Math.min(level + 1, FRUITS.length);
+  }
+
+  // 高分再加概率，可根据需求增加更高级水果
+  if (score >= 1500 && Math.random() < 0.1) {
+    level = Math.min(level + 2, FRUITS.length);
+  }
+
+  return level;
+}