585 lines
16 KiB
Plaintext
585 lines
16 KiB
Plaintext
// ==================== HoloLake 动态漫制作系统 v5.0 ====================
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// 环节5：动画时间轴（帧序列 + 播放控制 + 帧率调节）
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const STORAGE_KEY = 'hololake-comic-studio-data';
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const canvas = document.getElementById('main-canvas');
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const ctx = canvas.getContext('2d');
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// ==================== 全局状态 ====================
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let appState = {
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currentSceneId: 1,
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nextSceneId: 2,
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nextAssetId: 1,
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nextFrameId: 1,
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scenes: [],
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playback: {
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isPlaying: false,
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fps: 4,
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intervalId: null,
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currentFrameIndex: 0
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}
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};
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// ==================== 初始化 ====================
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function init() {
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loadFromStorage();
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if (appState.scenes.length === 0) {
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createDefaultScene();
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}
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setupEventListeners();
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renderSceneTabs();
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renderCanvas();
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renderTimeline();
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updatePlaybackControls();
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}
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// 创建默认场景
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function createDefaultScene() {
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const defaultScene = {
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id: 1,
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name: '场景 1',
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currentFrameIndex: 0,
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frames: [{
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id: 1,
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assets: []
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}],
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nextFrameId: 2
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};
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appState.scenes.push(defaultScene);
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appState.currentSceneId = 1;
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saveToStorage();
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}
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// ==================== 存储管理 ====================
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function saveToStorage() {
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localStorage.setItem(STORAGE_KEY, JSON.stringify(appState));
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}
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function loadFromStorage() {
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const data = localStorage.getItem(STORAGE_KEY);
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if (data) {
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const parsed = JSON.parse(data);
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// 向后兼容：旧数据没有 frames 字段
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if (parsed.scenes && parsed.scenes.length > 0 && !parsed.scenes[0].frames) {
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parsed.scenes = parsed.scenes.map(scene => ({
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...scene,
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currentFrameIndex: 0,
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frames: [{
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id: 1,
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assets: scene.assets || []
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}],
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nextFrameId: 2
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}));
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delete parsed.scenes[0].assets; // 删除旧的 assets 字段
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}
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// 确保 playback 对象存在
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if (!parsed.playback) {
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parsed.playback = { isPlaying: false, fps: 4, intervalId: null, currentFrameIndex: 0 };
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}
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appState = parsed;
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}
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}
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// ==================== 场景管理 ====================
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function addScene() {
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const newScene = {
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id: appState.nextSceneId++,
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name: `场景 ${appState.scenes.length + 1}`,
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currentFrameIndex: 0,
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frames: [{
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id: 1,
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assets: []
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}],
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nextFrameId: 2
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};
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appState.scenes.push(newScene);
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appState.currentSceneId = newScene.id;
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saveToStorage();
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renderSceneTabs();
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renderCanvas();
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renderTimeline();
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}
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function switchScene(sceneId) {
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if (appState.playback.isPlaying) {
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stopAnimation();
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}
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appState.currentSceneId = sceneId;
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saveToStorage();
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renderSceneTabs();
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renderCanvas();
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renderTimeline();
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updateFrameCounter();
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}
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function deleteScene(sceneId) {
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if (appState.scenes.length <= 1) {
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alert('至少保留一个场景！');
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return;
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}
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appState.scenes = appState.scenes.filter(s => s.id !== sceneId);
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if (appState.currentSceneId === sceneId) {
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appState.currentSceneId = appState.scenes[0].id;
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}
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saveToStorage();
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renderSceneTabs();
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renderCanvas();
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renderTimeline();
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}
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function getCurrentScene() {
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return appState.scenes.find(s => s.id === appState.currentSceneId);
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}
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function getCurrentFrame() {
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const scene = getCurrentScene();
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if (!scene) return null;
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return scene.frames[scene.currentFrameIndex];
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}// ==================== 帧管理 ====================
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function addFrame() {
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const scene = getCurrentScene();
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if (!scene) return;
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// 深拷贝当前帧的素材状态
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const currentFrame = scene.frames[scene.currentFrameIndex];
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const newFrame = {
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id: scene.nextFrameId++,
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assets: JSON.parse(JSON.stringify(currentFrame.assets))
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};
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// 在当前帧后插入新帧
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scene.frames.splice(scene.currentFrameIndex + 1, 0, newFrame);
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scene.currentFrameIndex++;
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saveToStorage();
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renderTimeline();
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renderCanvas();
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updateFrameCounter();
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}
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function deleteFrame() {
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const scene = getCurrentScene();
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if (!scene) return;
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if (scene.frames.length <= 1) {
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alert('至少保留一帧！');
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return;
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}
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scene.frames.splice(scene.currentFrameIndex, 1);
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if (scene.currentFrameIndex >= scene.frames.length) {
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scene.currentFrameIndex = scene.frames.length - 1;
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}
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saveToStorage();
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renderTimeline();
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renderCanvas();
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updateFrameCounter();
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}
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function switchFrame(frameIndex) {
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const scene = getCurrentScene();
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if (!scene || frameIndex < 0 || frameIndex >= scene.frames.length) return;
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// 保存当前画布状态到当前帧
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captureFrame();
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scene.currentFrameIndex = frameIndex;
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saveToStorage();
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renderTimeline();
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renderCanvas();
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updateFrameCounter();
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}
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function captureFrame() {
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// 画布状态实时保存在 assets 中，无需额外操作
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saveToStorage();
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}
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// ==================== 播放引擎 ====================
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function playAnimation() {
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const scene = getCurrentScene();
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if (!scene || scene.frames.length <= 1) return;
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appState.playback.isPlaying = true;
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updatePlaybackControls();
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const intervalMs = 1000 / appState.playback.fps;
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appState.playback.intervalId = setInterval(() => {
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const scene = getCurrentScene();
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if (!scene) return;
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scene.currentFrameIndex++;
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if (scene.currentFrameIndex >= scene.frames.length) {
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scene.currentFrameIndex = 0; // 循环播放
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}
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renderCanvas();
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renderTimeline();
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updateFrameCounter();
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saveToStorage();
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}, intervalMs);
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}
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function pauseAnimation() {
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appState.playback.isPlaying = false;
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if (appState.playback.intervalId) {
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clearInterval(appState.playback.intervalId);
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appState.playback.intervalId = null;
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}
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updatePlaybackControls();
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}
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function stopAnimation() {
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pauseAnimation();
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const scene = getCurrentScene();
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if (scene) {
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scene.currentFrameIndex = 0;
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renderCanvas();
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renderTimeline();
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updateFrameCounter();
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saveToStorage();
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}
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}
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function togglePlayback() {
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if (appState.playback.isPlaying) {
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pauseAnimation();
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} else {
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playAnimation();
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}
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}
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function setFPS(fps) {
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appState.playback.fps = parseInt(fps);
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document.getElementById('fps-display').textContent = fps + ' FPS';
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saveToStorage();
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// 如果正在播放，重启定时器以应用新帧率
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if (appState.playback.isPlaying) {
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pauseAnimation();
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playAnimation();
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}
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}
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function updatePlaybackControls() {
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const btnPlay = document.getElementById('btn-play');
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if (appState.playback.isPlaying) {
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btnPlay.textContent = '⏸️';
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btnPlay.title = '暂停';
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} else {
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btnPlay.textContent = '▶️';
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btnPlay.title = '播放';
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}
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}
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function updateFrameCounter() {
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const scene = getCurrentScene();
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if (!scene) return;
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const counter = document.getElementById('frame-counter');
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counter.textContent = `帧 ${scene.currentFrameIndex + 1}/${scene.frames.length}`;
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}// ==================== 渲染函数 ====================
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function renderSceneTabs() {
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const tabsList = document.getElementById('tabs-list');
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tabsList.innerHTML = '';
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appState.scenes.forEach(scene => {
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const tab = document.createElement('div');
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tab.className = 'scene-tab' + (scene.id === appState.currentSceneId ? ' active' : '');
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tab.innerHTML = `
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${scene.name}
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<span class="close-btn" onclick="event.stopPropagation(); deleteScene(${scene.id})">×</span>
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`;
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tab.onclick = () => switchScene(scene.id);
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tabsList.appendChild(tab);
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});
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}
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function renderTimeline() {
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const timelineFrames = document.getElementById('timeline-frames');
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timelineFrames.innerHTML = '';
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const scene = getCurrentScene();
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if (!scene) return;
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scene.frames.forEach((frame, index) => {
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const thumb = document.createElement('div');
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thumb.className = 'frame-thumb' + (index === scene.currentFrameIndex ? ' active' : '');
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thumb.setAttribute('data-frame', index + 1);
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thumb.textContent = `帧 ${index + 1}`;
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thumb.onclick = () => switchFrame(index);
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timelineFrames.appendChild(thumb);
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});
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}
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function renderCanvas() {
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// 清空画布
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ctx.fillStyle = '#ffffff';
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ctx.fillRect(0, 0, canvas.width, canvas.height);
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const frame = getCurrentFrame();
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if (!frame) return;
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// 绘制所有素材
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frame.assets.forEach(asset => {
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ctx.font = '48px Arial';
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ctx.textAlign = 'center';
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ctx.textBaseline = 'middle';
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// 绘制阴影
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ctx.shadowColor = 'rgba(0,0,0,0.3)';
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ctx.shadowBlur = 4;
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ctx.shadowOffsetX = 2;
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ctx.shadowOffsetY = 2;
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ctx.fillText(asset.emoji, asset.x, asset.y);
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// 重置阴影
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ctx.shadowColor = 'transparent';
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ctx.shadowBlur = 0;
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ctx.shadowOffsetX = 0;
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ctx.shadowOffsetY = 0;
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// 如果是选中状态，绘制边框
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if (asset.selected) {
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ctx.strokeStyle = '#e94560';
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ctx.lineWidth = 2;
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ctx.setLineDash([5, 5]);
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ctx.strokeRect(asset.x - 30, asset.y - 30, 60, 60);
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ctx.setLineDash([]);
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}
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});
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}
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// ==================== 素材拖放 ====================
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function setupEventListeners() {
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// 素材库拖放
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const assetItems = document.querySelectorAll('.asset-item');
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assetItems.forEach(item => {
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item.addEventListener('dragstart', (e) => {
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e.dataTransfer.setData('type', item.dataset.type);
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e.dataTransfer.setData('emoji', item.dataset.emoji);
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});
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});
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// 画布接收拖放
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canvas.addEventListener('dragover', (e) => {
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e.preventDefault();
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});
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canvas.addEventListener('drop', (e) => {
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e.preventDefault();
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const type = e.dataTransfer.getData('type');
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const emoji = e.dataTransfer.getData('emoji');
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if (emoji) {
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const rect = canvas.getBoundingClientRect();
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const x = e.clientX - rect.left;
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const y = e.clientY - rect.top;
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addAssetToCanvas(emoji, x, y);
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}
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});
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// 画布点击选择/移动
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let isDragging = false;
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let dragStartX, dragStartY;
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let selectedAsset = null;
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canvas.addEventListener('mousedown', (e) => {
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const rect = canvas.getBoundingClientRect();
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const x = e.clientX - rect.left;
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const y = e.clientY - rect.top;
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const frame = getCurrentFrame();
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if (!frame) return;
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// 查找点击的素材（从后往前，优先选上层的）
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selectedAsset = null;
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for (let i = frame.assets.length - 1; i >= 0; i--) {
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const asset = frame.assets[i];
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const dist = Math.sqrt((x - asset.x) ** 2 + (y - asset.y) ** 2);
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if (dist < 30) {
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selectedAsset = asset;
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// 更新选中状态
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frame.assets.forEach(a => a.selected = false);
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asset.selected = true;
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isDragging = true;
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dragStartX = x - asset.x;
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dragStartY = y - asset.y;
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renderCanvas();
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break;
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}
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}
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// 如果没点到素材，取消所有选中
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if (!selectedAsset) {
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frame.assets.forEach(a => a.selected = false);
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renderCanvas();
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}
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});
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canvas.addEventListener('mousemove', (e) => {
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if (!isDragging || !selectedAsset) return;
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const rect = canvas.getBoundingClientRect();
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const x = e.clientX - rect.left;
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const y = e.clientY - rect.top;
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selectedAsset.x = x - dragStartX;
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selectedAsset.y = y - dragStartY;
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// 边界限制
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selectedAsset.x = Math.max(30, Math.min(canvas.width - 30, selectedAsset.x));
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selectedAsset.y = Math.max(30, Math.min(canvas.height - 30, selectedAsset.y));
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renderCanvas();
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});
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canvas.addEventListener('mouseup', () => {
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if (isDragging) {
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isDragging = false;
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saveToStorage();
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}
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});
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// 键盘删除
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document.addEventListener('keydown', (e) => {
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if (e.key === 'Delete' || e.key === 'Backspace') {
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const frame = getCurrentFrame();
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if (!frame) return;
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const selectedIndex = frame.assets.findIndex(a => a.selected);
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if (selectedIndex !== -1) {
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frame.assets.splice(selectedIndex, 1);
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renderCanvas();
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saveToStorage();
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}
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}
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});
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// 导入文件监听
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document.getElementById('import-file').addEventListener('change', handleImport);
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}
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function addAssetToCanvas(emoji, x, y) {
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const frame = getCurrentFrame();
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if (!frame) return;
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// 取消其他选中
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frame.assets.forEach(a => a.selected = false);
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const newAsset = {
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id: appState.nextAssetId++,
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type: 'emoji',
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emoji: emoji,
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x: x,
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y: y,
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selected: true
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};
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frame.assets.push(newAsset);
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renderCanvas();
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saveToStorage();
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}// ==================== 导出导入 ====================
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function exportScene() {
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const dataStr = JSON.stringify(appState, null, 2);
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const blob = new Blob([dataStr], { type: 'application/json' });
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const url = URL.createObjectURL(blob);
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const a = document.createElement('a');
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a.href = url;
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a.download = `hololake-scene-${Date.now()}.json`;
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document.body.appendChild(a);
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a.click();
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document.body.removeChild(a);
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URL.revokeObjectURL(url);
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}
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function importScene() {
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document.getElementById('import-file').click();
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}
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function handleImport(e) {
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const file = e.target.files[0];
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if (!file) return;
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const reader = new FileReader();
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reader.onload = (event) => {
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try {
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const imported = JSON.parse(event.target.result);
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// 验证数据结构
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if (!imported.scenes || !Array.isArray(imported.scenes)) {
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throw new Error('无效的数据格式');
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}
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// 向后兼容处理
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imported.scenes = imported.scenes.map(scene => {
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if (!scene.frames) {
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return {
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...scene,
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currentFrameIndex: 0,
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frames: [{
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id: 1,
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assets: scene.assets || []
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}],
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nextFrameId: 2
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};
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}
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return scene;
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});
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if (!imported.playback) {
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imported.playback = { isPlaying: false, fps: 4, intervalId: null, currentFrameIndex: 0 };
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}
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appState = imported;
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saveToStorage();
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renderSceneTabs();
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renderCanvas();
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renderTimeline();
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updatePlaybackControls();
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updateFrameCounter();
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alert('导入成功！');
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} catch (err) {
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alert('导入失败：' + err.message);
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}
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};
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reader.readAsText(file);
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// 清空 input，允许重复导入同一文件
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e.target.value = '';
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}
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// ==================== 截图导出 ====================
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function exportScreenshot() {
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// 临时取消选中状态
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const frame = getCurrentFrame();
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if (!frame) return;
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const originalSelected = frame.assets.map(a => a.selected);
|
||
frame.assets.forEach(a => a.selected = false);
|
||
renderCanvas();cd ~/Desktop/guanghulab/dynamic-comic-studio
|
||
|
||
|
||
|
||
// 导出 PNG
|
||
const link = document.createElement('a');
|
||
link.download = `hololake-frame-${Date.now()}.png`;
|
||
link.href = canvas.toDataURL();
|
||
link.click();
|
||
|
||
// 恢复选中状态
|
||
frame.assets.forEach((a, i) => {
|
||
a.selected = originalSelected[i];
|
||
});
|
||
renderCanvas();
|
||
}
|
||
|
||
// ==================== 启动应用 ====================
|
||
document.addEventListener('DOMContentLoaded', init);
|