fix: 修复了冰块惯性问题和死亡效果

js/main.js

@@ -6,6 +6,7 @@ import { Camera } from './camera.js';
 import { Input } from './input.js';
 import { UI } from './ui.js';
 import { Save } from './save.js';
+import { Touch } from './touch.js';
 import { sfx, unlockAudio, Audio2 } from './audio.js';
 import { Editor } from './editor.js';
 import { clamp } from './util.js';
@@ -13,6 +14,16 @@ import { clamp } from './util.js';
 const W = 800, H = 608;
 const STEP = 1000 / 60;
 
+// 移动端检测：触屏设备自动启用虚拟手柄；?touch=1 强制开启，?touch=0 强制关闭（桌面调试用）
+// 判定条件：① 是移动端（存在 ontouchstart）/ 支持触屏（maxTouchPoints>0）/ 粗指针（触屏笔或手指）
+// 只有命中才给 <html> 加 .touch 类；CSS 里 html:not(.touch) #touch 会强制隐藏，桌面端永远不显示按钮
+const _qp = new URLSearchParams(location.search);
+const _force = _qp.get('touch');
+const _isTouch = ('ontouchstart' in window) || navigator.maxTouchPoints > 0 || matchMedia('(pointer: coarse)').matches;
+const useTouch = _force === '1' || (_force !== '0' && _isTouch);
+if (useTouch) document.documentElement.classList.add('touch');
+function showTouch() { if (useTouch) Touch.show(); }
+
 const canvas = document.getElementById('game');
 const ctx = canvas.getContext('2d', { alpha: false });
 ctx.imageSmoothingEnabled = false;
@@ -40,6 +51,7 @@ function startLevel(data, idx = -1) {
   G.deaths = 0; G.ms = 0; G.hudTick = 0;
   G.state = 'playing';
   UI.showGame();
+  showTouch();
   UI.toast('');
   if (data.hint) UI.toast(data.hint);
 }
@@ -58,9 +70,17 @@ function suicide() {
   G.player.kill();
 }
 
+/** 触屏射击：仅在持枪、未死亡且游戏进行中时发射（受玩家自身冷却限制） */
+function shoot() {
+  const P = G.player;
+  if (G.state !== 'playing' || !P || !P.alive || !P.hasGun || P.shootCool !== 0) return;
+  P.shoot();
+}
+
 function finish() {
   if (G.state !== 'playing') return;
   G.state = 'result';
+  Touch.hide();
   sfx.goal();
   const apples = G.player.apples || 0;
   const total = G.level.totalApples || 0;
@@ -76,10 +96,10 @@ function nextLevel() {
   if (G.idx >= 0 && G.idx + 1 < LEVELS.length) startLevel(LEVELS[G.idx + 1], G.idx + 1);
   else toLevels();
 }
-function toLevels() { G.state = 'menu'; UI.show('scr-levels'); }
-function toTitle() { G.state = 'menu'; UI.show('scr-title'); }
-function pause() { if (G.state === 'playing') { G.state = 'paused'; UI.show('scr-pause'); } }
-function resume() { if (G.state === 'paused') { G.state = 'playing'; UI.showGame(); } }
+function toLevels() { G.state = 'menu'; UI.show('scr-levels'); Touch.hide(); }
+function toTitle() { G.state = 'menu'; UI.show('scr-title'); Touch.hide(); }
+function pause() { if (G.state === 'playing') { G.state = 'paused'; UI.show('scr-pause'); Touch.hide(); } }
+function resume() { if (G.state === 'paused') { G.state = 'playing'; UI.showGame(); showTouch(); } }
 
 // ---------------- 更新 ----------------
 function update() {
@@ -94,7 +114,8 @@ function update() {
   for (const b of L.bosses) b.update(1, P);
   P.update(1);
   // 刚从死亡中复活：镜头立刻对准重生点，别慢慢飘过去
-  if (wasDead && !P.dead) G.cam.snapTo(P, L);
+  if (P.justRespawned || (wasDead && !P.dead)) G.cam.snapTo(P, L);
+  P.justRespawned = false;
   G.cam.update(L, P, 1);
   G.ms += STEP;
   G.time++;
@@ -105,6 +126,7 @@ function update() {
       apples: P.apples, totalApples: L.totalApples, hasGun: P.hasGun,
       save: P.saveIdx || 0, totalSaves: L.totalSaves || 0,
     });
+    Touch.setGun(P.hasGun);
     const boss = L.bosses.find(b => !b.dead) || L.bosses[0];
     UI.bossBar(L.bosses.length ? boss : null);
   }
@@ -126,11 +148,6 @@ function render() {
     ctx.restore();
     L.drawOverlay(ctx, C, t);
     UI.toast(L.toast || '');
-    // 死亡时的血色闪烁
-    if (P.dead) {
-      ctx.fillStyle = 'rgba(200,0,40,.18)';
-      ctx.fillRect(0, 0, W, H);
-    }
   } else {
     drawTitleBg(t);
   }
@@ -188,7 +205,7 @@ UI.init({
   play: (lv) => startLevel(lv, lv.builtin === false ? -1 : (lv.index ?? -1)),
   levels: toLevels,
   help: () => UI.show('scr-help'),
-  editor: () => { G.state = 'editor'; UI.show('scr-editor'); Editor.open(); },
+  editor: () => { G.state = 'editor'; UI.show('scr-editor'); Touch.hide(); Editor.open(); },
   back: toTitle,
   resume,
   restart: () => { restart(); },
@@ -210,8 +227,11 @@ const unlock = () => { unlockAudio(); removeEventListener('pointerdown', unlock)
 addEventListener('pointerdown', unlock);
 addEventListener('keydown', unlock);
 
+// 移动端虚拟手柄
+Touch.init({ pause, suicide, shoot });
+
 UI.show('scr-title');
 requestAnimationFrame(loop);
 
 // 调试钩子
-window.__IW = { G, LEVELS, Save, startLevel };
+window.__IW = { G, LEVELS, Save, startLevel, pause, resume, restart, suicide };