v0.01
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// 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 { sfx, unlockAudio, Audio2 } from './audio.js';
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import { Editor } from './editor.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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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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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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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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G.level = new Level(data);
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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.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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UI.toast('');
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if (data.hint) UI.toast(data.hint);
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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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function finish() {
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if (G.state !== 'playing') return;
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G.state = 'result';
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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'); }
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function toTitle() { G.state = 'menu'; UI.show('scr-title'); }
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function pause() { if (G.state === 'playing') { G.state = 'paused'; UI.show('scr-pause'); } }
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function resume() { if (G.state === 'paused') { G.state = 'playing'; UI.showGame(); } }
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// ---------------- 更新 ----------------
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function update() {
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const L = G.level, 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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L.update(1, P, G.cam);
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for (const b of L.bosses) b.update(1, P);
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P.update(1);
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// 刚从死亡中复活：镜头立刻对准重生点，别慢慢飘过去
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if (wasDead && !P.dead) G.cam.snapTo(P, L);
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G.cam.update(L, 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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UI.hud({
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name: G.data.name, 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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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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// 死亡时的血色闪烁
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if (P.dead) {
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ctx.fillStyle = 'rgba(200,0,40,.18)';
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ctx.fillRect(0, 0, W, H);
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}
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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) => startLevel(lv, lv.builtin === false ? -1 : (lv.index ?? -1)),
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levels: toLevels,
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help: () => UI.show('scr-help'),
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editor: () => { G.state = 'editor'; UI.show('scr-editor'); Editor.open(); },
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back: toTitle,
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resume,
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restart: () => { restart(); },
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quit: 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) => 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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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 };
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