refactor: 使用flutter对原先的web项目重构，正在进行中

tmp/tools/save-test.mjs

@@ -0,0 +1,59 @@
+// 存档点专项测试：触碰 -> 激活 -> 死亡 -> 回到存档点
+const handlers = {};
+const addL = (t, fn) => { (handlers[t] = handlers[t] || []).push(fn); };
+globalThis.addEventListener = addL;
+globalThis.window = { addEventListener: addL };
+const key = (type, code) => (handlers[type] || []).forEach(fn => fn({ code, preventDefault() { }, repeat: false }));
+const down = c => key('keydown', c);
+const up = c => key('keyup', c);
+
+const { LEVELS } = await import('../js/levels/index.js');
+const { Level } = await import('../js/level.js');
+const { Player } = await import('../js/player.js');
+const { Input } = await import('../js/input.js');
+
+let fail = 0;
+const err = m => { console.log('  ✗ ' + m); fail++; };
+
+for (const d of LEVELS) {
+  const L = new Level(d);
+  const P = new Player(L);
+  const saves = L.entities.filter(e => e.type === 'save');
+  if (!saves.length) { console.log(`  ${d.id} 无存档点`); continue; }
+
+  // 依次把玩家瞬移到每个存档点，检查是否激活
+  for (const s of saves) {
+    P.x = s.x + s.w / 2 - P.w / 2;
+    P.y = s.y + s.h - P.h;
+    P.vx = 0; P.vy = 0; P.dead = false; P.alive = true;
+    L.update(1, P, null);
+    P.update(1);
+    Input.endFrame();
+    if (!s.active) err(`${d.id} 存档点(${s.tx},${s.ty}) 触碰后未激活`);
+    if (!P.savePoint) err(`${d.id} 存档点(${s.tx},${s.ty}) 未写入 player.savePoint`);
+  }
+
+  // 死亡后应回到最后一个存档点
+  const last = saves[saves.length - 1];
+  const want = { x: last.x + last.w / 2 - P.w / 2, y: last.y + last.h - P.h };
+  const spawn = L.spawn;
+  P.kill();               // 死亡后不再自动重生（新语义：定格等待手动重生）
+  P.respawn();            // 模拟玩家按 R 手动重生，应回到最后一个存档点
+  for (let i = 0; i < 45; i++) { L.update(1, P, null); P.update(1); Input.endFrame(); }
+  const dx = Math.abs(P.x - want.x), dy = Math.abs(P.y - want.y);
+  const backToStart = Math.abs(P.x - spawn.x) < 3 && Math.abs(P.y - spawn.y) < 3;
+  const ok = dx < 2 && dy < 2;
+  console.log(`  ${d.id.padEnd(3)} 存档=${saves.length} 重生=(${P.x.toFixed(0)},${P.y.toFixed(0)}) 期望=(${want.x.toFixed(0)},${want.y.toFixed(0)}) ${ok ? 'OK' : (backToStart ? '❌回到了起点' : '❌位置不符')}`);
+  if (!ok) err(`${d.id} 死亡后未回到存档点`);
+
+  // 重生后是否立刻死亡
+  const alive0 = P.alive;
+  for (let i = 0; i < 20; i++) { L.update(1, P, null); P.update(1); Input.endFrame(); }
+  if (alive0 && !P.alive) err(`${d.id} 在存档点重生后立刻死亡`);
+
+  // 存档点状态是否在软重置后保留
+  if (!last.active) err(`${d.id} 软重置后存档点激活状态丢失`);
+}
+
+console.log(fail ? `\n❌ ${fail} 项失败` : '\n✅ 存档点全部正常');
+process.exit(fail ? 1 : 0);