335 lines
11 KiB
JavaScript
335 lines
11 KiB
JavaScript
// 入口：游戏循环 / 状态机
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import { LEVELS, findLevel } from './levels/index.js';
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import { Level } from './level.js';
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import { Player } from './player.js';
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import { Camera } from './camera.js';
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import { Input } from './input.js';
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import { UI } from './ui.js';
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import { Save } from './save.js';
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import { Touch } from './touch.js';
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import { sfx, unlockAudio, Audio2 } from './audio.js';
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import { Editor } from './editor.js';
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import { Settings } from './settings.js';
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import { clamp } from './util.js';
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const W = 800, H = 608;
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const STEP = 1000 / 60;
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// 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）
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// 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）
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// 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
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const _qp = new URLSearchParams(location.search);
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const _force = _qp.get('touch');
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const _isTouch = ('ontouchstart' in window) || navigator.maxTouchPoints > 0 || matchMedia('(pointer: coarse)').matches;
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const useTouch = _force === '1' || (_force !== '0' && _isTouch);
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if (useTouch) document.documentElement.classList.add('touch');
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function showTouch() { if (useTouch) Touch.show(); }
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const canvas = document.getElementById('game');
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const ctx = canvas.getContext('2d', { alpha: false });
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ctx.imageSmoothingEnabled = false;
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const G = {
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state: 'menu', // menu | playing | paused | result | editor
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level: null, player: null, cam: null,
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data: null, idx: -1,
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map: null, face: 0, // 多面地图：map=各面 Level 数组，face=当前面下标
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fromEditor: false, // 是否从编辑器「试玩」进入（决定暂停菜单末项去向）
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deaths: 0, ms: 0, hudTick: 0,
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time: 0,
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lastLevelId: null,
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};
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// ---------------- 关卡流程 ----------------
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// 把一张「面」的数据包装成 Level 可用的 data（门目标来自面自身的 doors）
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function faceData(map, face, i) {
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return {
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id: (map.id || 'map') + '-' + i,
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name: face.name || ('面' + (i + 1)),
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type: 'custom',
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width: face.width || (face.grid[0] ? face.grid[0].length : 25),
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grid: face.grid,
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doors: face.doors || [],
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bg: 'custom', hint: '', messages: [],
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};
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}
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function startLevel(data, idx = -1) {
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unlockAudio();
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G.data = data; G.idx = idx; G.lastLevelId = data.id;
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// 自制多面地图：data.faces 存在则构建每面一个 Level；否则按传统单关处理
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if (data.faces && data.faces.length) {
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G.map = data.faces.map((f, i) => { const L = new Level(faceData(data, f, i)); L.faceIndex = i; return L; });
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G.face = Math.max(0, Math.min(data.startFace || 0, G.map.length - 1));
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} else {
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G.map = [new Level(data)]; G.face = 0;
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}
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G.level = G.map[G.face];
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G.player = new Player(G.level);
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G.cam = new Camera(W, H);
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G.cam.reset(G.level, G.player);
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G.player.onDeath = () => { G.deaths++; };
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G.player.onClear = () => finish();
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G.player.onPortal = (e) => doPortal(e);
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G.player.onRespawnFace = () => doRespawnFace();
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G.level.bosses.forEach(b => { b.onDefeat = () => finish(); });
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G.deaths = 0; G.ms = 0; G.hudTick = 0;
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G.state = 'playing';
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UI.showGame();
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showTouch();
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UI.toast('');
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if (data.hint) UI.toast(data.hint);
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}
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// 把玩家放到某面某门上（不切面的同面传送也用）
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function placeOnDoor(dest) {
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const P = G.player;
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P.x = dest.x + dest.w / 2 - P.w / 2;
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P.y = dest.y + dest.h - P.h;
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P.vx = 0; P.vy = 0; P.jumps = 0;
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}
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// 踩到门：e.to = {face, door}
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function doPortal(e) {
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const to = e.to;
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const tp = Math.max(0, Math.min(G.map.length - 1, to.face | 0));
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if (tp === G.face) {
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const dest = G.map[tp].entities.find(o => o.type === 'warp' && o.doorId === to.door);
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if (dest) { placeOnDoor(dest); dest.cool = 40; }
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sfx.warp();
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} else {
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switchFace(tp, to.door);
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}
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}
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// 切换到第 f 面，并落到该面的目标门上
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function switchFace(f, doorId) {
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G.face = f;
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G.level = G.map[f];
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G.level.reset(true); // 进入该面时重置其运行时
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G.player.level = G.level;
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const dest = G.level.entities.find(o => o.type === 'warp' && o.doorId === doorId);
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if (dest) { placeOnDoor(dest); dest.cool = 40; }
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else { const sp = G.level.spawn; G.player.x = sp.x; G.player.y = sp.y; G.player.vx = 0; G.player.vy = 0; }
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G.cam.reset(G.level, G.player);
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sfx.warp();
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G.level.particles.spawn(G.player.cx, G.player.cy, 12, { colors: ['#a86bff', '#fff'], speed: 2.5, life: 24 });
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}
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// 复活回到存档点所在面（跨面）
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function doRespawnFace() {
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const sp = G.player.savePoint;
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if (sp && typeof sp.face === 'number' && sp.face !== G.face) {
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G.face = sp.face;
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G.level = G.map[sp.face];
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G.level.reset(true);
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G.player.level = G.level;
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G.cam.reset(G.level, G.player);
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}
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}
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/** 整关从头再来：保留死亡数，丢弃所有存档点进度 */
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function restart() {
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if (!G.data) return;
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const d = G.deaths;
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startLevel(G.data, G.idx);
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G.deaths = d; // 死亡数不重置
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}
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/** 自杀（IWBT 的 R 键）：死后自动回到最近的存档点 */
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function suicide() {
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if (!G.player || G.state !== 'playing') return;
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G.player.kill();
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}
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/** 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） */
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function shoot() {
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const P = G.player;
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if (G.state !== 'playing' || !P || !P.alive || !P.hasGun || P.shootCool !== 0) return;
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P.shoot();
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}
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function finish() {
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if (G.state !== 'playing') return;
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G.state = 'result';
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Touch.hide();
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sfx.goal();
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const apples = G.player.apples || 0;
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const total = G.level.totalApples || 0;
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const better = Save.clear(G.data.id, G.deaths, G.ms, apples);
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const hasNext = G.idx >= 0 && G.idx + 1 < LEVELS.length;
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UI.result({
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name: G.data.name, ms: G.ms, deaths: G.deaths,
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apples, totalApples: total, better, hasNext,
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});
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}
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function nextLevel() {
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if (G.idx >= 0 && G.idx + 1 < LEVELS.length) startLevel(LEVELS[G.idx + 1], G.idx + 1);
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else toLevels();
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}
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function toLevels() { G.state = 'menu'; UI.show('scr-levels'); Touch.hide(); }
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function toTitle() { G.state = 'menu'; UI.show('scr-title'); Touch.hide(); }
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function toEditor() {
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G.state = 'editor';
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UI.show('scr-editor');
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Touch.hide();
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// 试玩后返回：保留正在编辑的地图；从未进过编辑器时才新建
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if (Editor.faces) Editor.show(); else Editor.open();
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}
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function pause() {
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if (G.state !== 'playing') return;
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G.state = 'paused';
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// 暂停菜单末项：从编辑器试玩进来 → 「返回编辑器」；否则 → 「返回关卡选择」
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const q = document.querySelector('#scr-pause [data-act="quit"]');
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if (q) q.textContent = G.fromEditor ? '返回编辑器' : '返回关卡选择';
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UI.show('scr-pause');
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Touch.hide();
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}
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function resume() { if (G.state === 'paused') { G.state = 'playing'; UI.showGame(); showTouch(); } }
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// ---------------- 更新 ----------------
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function update() {
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const P = G.player;
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// R = 自杀回存档点；Backspace = 整关重开
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if (Input.hit('suicide')) { suicide(); return; }
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if (Input.hit('restart')) { restart(); return; }
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if (Input.hit('pause')) { pause(); return; }
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const wasDead = P.dead;
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G.level.update(1, P, G.cam);
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for (const b of G.level.bosses) b.update(1, P);
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P.update(1);
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// 刚从死亡中复活：若存档点在别的面，先切回该面，再镜头瞬移
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if (P.justRespawned) {
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if (P.savePoint && typeof P.savePoint.face === 'number' && P.savePoint.face !== G.face) doRespawnFace();
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G.cam.snapTo(P, G.level);
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P.justRespawned = false;
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}
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G.cam.update(G.level, P, 1);
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G.ms += STEP;
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G.time++;
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if (++G.hudTick % 5 === 0) {
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const L = G.level;
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UI.hud({
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name: G.data.name + (G.map.length > 1 ? ` · 面${G.face + 1}/${G.map.length}` : ''),
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deaths: G.deaths, ms: G.ms,
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apples: P.apples, totalApples: L.totalApples, hasGun: P.hasGun,
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save: P.saveIdx || 0, totalSaves: L.totalSaves || 0,
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});
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Touch.setGun(P.hasGun);
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const boss = L.bosses.find(b => !b.dead) || L.bosses[0];
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UI.bossBar(L.bosses.length ? boss : null);
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}
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}
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// ---------------- 渲染 ----------------
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function render() {
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const t = G.time;
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if (G.state === 'playing' || G.state === 'paused' || G.state === 'result') {
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const L = G.level, P = G.player, C = G.cam;
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ctx.fillStyle = '#0a0a14';
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ctx.fillRect(0, 0, W, H);
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L.drawBg(ctx, C, t);
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ctx.save();
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C.apply(ctx);
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L.draw(ctx, C, t);
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for (const b of L.bosses) b.draw(ctx, t);
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P.draw(ctx);
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ctx.restore();
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L.drawOverlay(ctx, C, t);
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UI.toast(L.toast || '');
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} else {
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drawTitleBg(t);
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}
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}
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function drawTitleBg(t) {
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const g = ctx.createLinearGradient(0, 0, 0, H);
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g.addColorStop(0, '#181828'); g.addColorStop(1, '#08080f');
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ctx.fillStyle = g; ctx.fillRect(0, 0, W, H);
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// 漂浮的刺
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ctx.globalAlpha = 0.5;
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for (let i = 0; i < 26; i++) {
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const x = ((i * 137 + t * 0.15) % (W + 60)) - 30;
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const y = 120 + ((i * 71) % (H - 160));
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ctx.fillStyle = i % 3 === 0 ? '#3a3a4c' : '#2a2a38';
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ctx.beginPath();
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ctx.moveTo(x, y + 18); ctx.lineTo(x + 11, y); ctx.lineTo(x + 22, y + 18);
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ctx.closePath(); ctx.fill();
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}
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ctx.globalAlpha = 1;
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// 底部刺海
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ctx.fillStyle = '#1a1a26';
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ctx.fillRect(0, H - 30, W, 30);
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ctx.fillStyle = '#c8c8d8';
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for (let x = 0; x < W; x += 22) {
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ctx.beginPath();
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ctx.moveTo(x, H - 4); ctx.lineTo(x + 11, H - 26); ctx.lineTo(x + 22, H - 4);
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ctx.closePath(); ctx.fill();
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}
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}
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// ---------------- 主循环 ----------------
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let last = performance.now(), acc = 0;
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function loop(now) {
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requestAnimationFrame(loop);
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let dt = now - last; last = now;
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if (dt > 200) dt = 200;
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acc += dt;
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let guard = 0;
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while (acc >= STEP && guard++ < 6) {
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acc -= STEP;
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if (G.state === 'playing') update();
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else if (G.state === 'paused' && Input.hit('pause')) resume();
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Input.endFrame();
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}
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if (G.state !== 'playing') G.time++;
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render();
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}
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// ---------------- 启动 ----------------
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Save.load();
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Audio2.enabled = Save.data.audio !== false;
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UI.init({
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play: (lv) => { G.fromEditor = false; startLevel(lv, lv.builtin === false ? -1 : (lv.index ?? -1)); },
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levels: toLevels,
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manage: () => UI.setManage(!UI.manage),
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help: () => UI.show('scr-help'),
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editor: toEditor,
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settings: () => { Settings.enter(); UI.show('scr-settings'); },
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'set-ok': () => Settings.confirm(),
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'set-reset': () => Settings.reset(),
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back: toTitle,
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resume,
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restart: () => { restart(); },
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quit: () => (G.fromEditor ? toEditor() : toLevels()),
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retry: () => startLevel(G.data, G.idx),
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next: nextLevel,
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wipe: () => {
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if (confirm('确定清除所有通关记录与自制关卡？')) { Save.wipe(); UI.renderLevels(); }
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},
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});
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Editor.init({
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startLevel: (data) => { G.fromEditor = true; startLevel(data, -1); },
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refresh: () => UI.renderLevels(),
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});
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// 首次交互解锁音频
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const unlock = () => { unlockAudio(); removeEventListener('pointerdown', unlock); removeEventListener('keydown', unlock); };
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addEventListener('pointerdown', unlock);
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addEventListener('keydown', unlock);
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// 移动端虚拟手柄
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Touch.init({ pause, suicide, shoot });
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Settings.init();
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UI.show('scr-title');
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requestAnimationFrame(loop);
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// 调试钩子
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window.__IW = { G, LEVELS, Save, startLevel, pause, resume, restart, suicide };
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