DEV-004:M17环节5-动画时间轴·帧序列+播放控制+帧率调节+数据持久化
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zhizhi200271
parent
1a4b958b7e
commit
ea342fa0e0
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/* ==================== 基础重置 ==================== */
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* {
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margin: 0;
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padding: 0;
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box-sizing: border-box;
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}
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body {
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font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
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background: #1a1a2e;
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color: #eee;
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overflow: hidden;
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}
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/* ==================== 布局框架 ==================== */
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#app {
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display: flex;
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flex-direction: column;
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height: 100vh;
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}
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/* ==================== 顶部工具栏 ==================== */
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#toolbar {
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display: flex;
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justify-content: space-between;
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align-items: center;
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padding: 10px 20px;
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background: #16213e;
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border-bottom: 2px solid #0f3460;
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}
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#toolbar h1 {
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font-size: 18px;
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color: #e94560;
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}
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.toolbar-actions button {
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margin-left: 10px;
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padding: 6px 12px;
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background: #0f3460;
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color: #fff;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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transition: background 0.3s;
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}
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.toolbar-actions button:hover {
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background: #e94560;
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}
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/* ==================== 主工作区 ==================== */
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#workspace {
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display: flex;
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flex: 1;
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overflow: hidden;
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}
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/* ==================== 左侧素材面板 ==================== */
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#assets-panel {
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width: 200px;
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background: #16213e;
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border-right: 2px solid #0f3460;
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padding: 15px;
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overflow-y: auto;
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}
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#assets-panel h3 {
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color: #e94560;
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margin-bottom: 15px;
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font-size: 16px;
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}
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.asset-category {
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margin-bottom: 20px;
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}
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.asset-category h4 {
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color: #533483;
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font-size: 14px;
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margin-bottom: 10px;
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padding-left: 5px;
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border-left: 3px solid #e94560;
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}
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.asset-items {
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display: flex;
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flex-wrap: wrap;
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gap: 8px;
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}
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.asset-item {
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padding: 8px 12px;
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background: #0f3460;
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border-radius: 6px;
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cursor: move;
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font-size: 13px;
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transition: all 0.3s;
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user-select: none;
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}
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.asset-item:hover {
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background: #e94560;
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transform: translateY(-2px);
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}
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/* ==================== 画布区域 ==================== */
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#canvas-container {
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flex: 1;
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display: flex;
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flex-direction: column;
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background: #0f0f1a;
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}
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#scene-tabs {
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display: flex;
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align-items: center;
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padding: 10px;
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background: #16213e;
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border-bottom: 2px solid #0f3460;
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}
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#tabs-list {
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display: flex;
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gap: 8px;
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flex: 1;
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}
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.scene-tab {
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padding: 8px 16px;
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background: #0f3460;
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border-radius: 4px 4px 0 0;
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cursor: pointer;
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font-size: 14px;
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position: relative;
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}
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.scene-tab.active {
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background: #e94560;
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}
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.scene-tab .close-btn {
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margin-left: 8px;
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opacity: 0.6;
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}
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.scene-tab .close-btn:hover {
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opacity: 1;
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}
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#add-scene-btn {
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padding: 8px 16px;
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background: #533483;
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color: #fff;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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margin-left: 10px;
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}
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#canvas-wrapper {
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flex: 1;
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display: flex;
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justify-content: center;
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align-items: center;
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padding: 20px;
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overflow: auto;
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}
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#main-canvas {
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background: #fff;
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border-radius: 8px;
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box-shadow: 0 4px 20px rgba(0,0,0,0.5);
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cursor: crosshair;
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}
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/* ==================== 底部时间轴面板 ==================== */
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#timeline-panel {
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background: #16213e;
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border-top: 2px solid #0f3460;
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padding: 15px 20px;
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display: flex;
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flex-direction: column;
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gap: 12px;
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}
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/* 播放控制栏 */
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#playback-controls {
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display: flex;
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align-items: center;
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gap: 15px;
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}
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#playback-controls button {
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width: 40px;
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height: 40px;
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border-radius: 50%;
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border: none;
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background: #0f3460;
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color: #fff;
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font-size: 18px;
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cursor: pointer;
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transition: all 0.3s;
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display: flex;
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align-items: center;
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justify-content: center;
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}
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#playback-controls button:hover {
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background: #e94560;
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transform: scale(1.1);
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}
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#frame-counter {
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font-size: 14px;
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color: #aaa;
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min-width: 80px;
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}
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#playback-controls label {
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display: flex;
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align-items: center;
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gap: 10px;
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font-size: 14px;
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color: #aaa;
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}
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#fps-slider {
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width: 120px;
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cursor: pointer;
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}
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#fps-display {
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color: #e94560;
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font-weight: bold;
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min-width: 50px;
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}
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/* 帧缩略图时间轴 */
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#timeline-frames {
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display: flex;
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gap: 8px;
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padding: 10px;
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background: #0f0f1a;
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border-radius: 6px;
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overflow-x: auto;
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min-height: 70px;
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align-items: center;
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}
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.frame-thumb {
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width: 80px;
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height: 60px;
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background: #0f3460;
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border: 2px solid #533483;
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border-radius: 4px;
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cursor: pointer;
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display: flex;
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align-items: center;
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justify-content: center;
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font-size: 12px;
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color: #aaa;
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position: relative;
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transition: all 0.3s;
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flex-shrink: 0;
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}
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.frame-thumb:hover {
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border-color: #e94560;
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transform: translateY(-2px);
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}
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.frame-thumb.active {
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border-color: #e94560;
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background: #533483;
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box-shadow: 0 0 10px rgba(233, 69, 96, 0.5);
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}
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.frame-thumb::before {
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content: attr(data-frame);
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position: absolute;
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top: 2px;
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left: 4px;
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font-size: 10px;
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color: #fff;
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background: rgba(0,0,0,0.5);
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padding: 1px 4px;
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border-radius: 2px;
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}
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/* 时间轴操作按钮 */
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#timeline-actions {
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display: flex;
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gap: 10px;
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}
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#timeline-actions button {
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padding: 8px 16px;
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background: #0f3460;
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color: #fff;
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border: none;
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border-radius: 4px;
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cursor: pointer;
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font-size: 14px;
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transition: all 0.3s;
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}
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#timeline-actions button:hover {
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background: #e94560;
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}
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/* ==================== 画布上的素材样式 ==================== */
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.canvas-asset {
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position: absolute;
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cursor: move;
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user-select: none;
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font-size: 48px;
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filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.3));
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transition: transform 0.1s;
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}
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.canvas-asset:hover {
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transform: scale(1.1);
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}
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.canvas-asset.selected {
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outline: 2px dashed #e94560;
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outline-offset: 4px;
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}
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/* ==================== 滚动条样式 ==================== */
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::-webkit-scrollbar {
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width: 8px;
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height: 8px;
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}
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::-webkit-scrollbar-track {
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background: #0f0f1a;
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}
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::-webkit-scrollbar-thumb {
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background: #533483;
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border-radius: 4px;
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}
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::-webkit-scrollbar-thumb:hover {
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background: #e94560;
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}
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<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>HoloLake 动态漫制作系统 - 环节5</title>
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<link rel="stylesheet" href="css/style.css">
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</head>
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<body>
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<div id="app">
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<!-- 顶部工具栏 -->
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<header id="toolbar">
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<h1>🎬 HoloLake 动态漫制作系统</h1>
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<div class="toolbar-actions">
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<button onclick="exportScene()">📤 导出JSON</button>
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<button onclick="importScene()">📥 导入JSON</button>
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<button onclick="exportScreenshot()">📷 截图</button>
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<input type="file" id="import-file" style="display:none" accept=".json">
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</div>
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</header>
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<!-- 主工作区 -->
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<main id="workspace">
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<!-- 左侧素材面板 -->
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<aside id="assets-panel">
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<h3>🎨 素材库</h3>
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<div class="asset-category">
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<h4>角色</h4>
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<div class="asset-items">
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<div class="asset-item" draggable="true" data-type="character" data-emoji="😊">😊 开心</div>
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<div class="asset-item" draggable="true" data-type="character" data-emoji="😢">😢 难过</div>
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<div class="asset-item" draggable="true" data-type="character" data-emoji="😠">😠 生气</div>
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<div class="asset-item" draggable="true" data-type="character" data-emoji="😴">😴 睡觉</div>
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</div>
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</div>
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<div class="asset-category">
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<h4>物品</h4>
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<div class="asset-items">
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<div class="asset-item" draggable="true" data-type="item" data-emoji="🌸">🌸 花</div>
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<div class="asset-item" draggable="true" data-type="item" data-emoji="⭐">⭐ 星星</div>
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<div class="asset-item" draggable="true" data-type="item" data-emoji="💎">💎 宝石</div>
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<div class="asset-item" draggable="true" data-type="item" data-emoji="📖">📖 书</div>
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</div>
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</div>
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<div class="asset-category">
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<h4>场景</h4>
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<div class="asset-items">
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<div class="asset-item" draggable="true" data-type="background" data-emoji="🏠">🏠 房子</div>
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<div class="asset-item" draggable="true" data-type="background" data-emoji="🌳">🌳 树林</div>
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<div class="asset-item" draggable="true" data-type="background" data-emoji="🏔️">🏔️ 山</div>
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</div>
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</div>
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</aside>
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<!-- 中间画布区域 -->
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<section id="canvas-container">
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<div id="scene-tabs">
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<div id="tabs-list"></div>
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<button onclick="addScene()" id="add-scene-btn">+ 新场景</button>
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</div>
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<div id="canvas-wrapper">
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<canvas id="main-canvas" width="800" height="600"></canvas>
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</div>
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</section>
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</main>
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<!-- 底部时间轴面板 -->
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<footer id="timeline-panel">
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<div id="playback-controls">
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<button onclick="stopAnimation()" title="停止(回到第1帧)">⏹️</button>
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<button onclick="togglePlayback()" id="btn-play" title="播放/暂停">▶️</button>
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<span id="frame-counter">帧 1/1</span>
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<label>速度:
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<input type="range" id="fps-slider" min="1" max="12" value="4" oninput="setFPS(this.value)">
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<span id="fps-display">4 FPS</span>
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</label>
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</div>
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<div id="timeline-frames"></div>
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<div id="timeline-actions">
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<button onclick="addFrame()" title="添加新帧(复制当前帧)">➕ 新帧</button>
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<button onclick="deleteFrame()" title="删除当前帧">🗑️ 删帧</button>
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</div>
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</footer>
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</div>
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<script src="js/app.js"></script>
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</body>
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</html>
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@ -0,0 +1,581 @@
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// ==================== 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,
|
||||
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 ====================
|
||||
function saveToStorage() {
|
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localStorage.setItem(STORAGE_KEY, JSON.stringify(appState));
|
||||
}
|
||||
|
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function loadFromStorage() {
|
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const data = localStorage.getItem(STORAGE_KEY);
|
||||
if (data) {
|
||||
const parsed = JSON.parse(data);
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// 向后兼容：旧数据没有 frames 字段
|
||||
if (parsed.scenes && parsed.scenes.length > 0 && !parsed.scenes[0].frames) {
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||||
parsed.scenes = parsed.scenes.map(scene => ({
|
||||
...scene,
|
||||
currentFrameIndex: 0,
|
||||
frames: [{
|
||||
id: 1,
|
||||
assets: scene.assets || []
|
||||
}],
|
||||
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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||||
}
|
||||
// 确保 playback 对象存在
|
||||
if (!parsed.playback) {
|
||||
parsed.playback = { isPlaying: false, fps: 4, intervalId: null, currentFrameIndex: 0 };
|
||||
}
|
||||
appState = parsed;
|
||||
}
|
||||
}
|
||||
|
||||
// ==================== 场景管理 ====================
|
||||
function addScene() {
|
||||
const newScene = {
|
||||
id: appState.nextSceneId++,
|
||||
name: `场景 ${appState.scenes.length + 1}`,
|
||||
currentFrameIndex: 0,
|
||||
frames: [{
|
||||
id: 1,
|
||||
assets: []
|
||||
}],
|
||||
nextFrameId: 2
|
||||
};
|
||||
appState.scenes.push(newScene);
|
||||
appState.currentSceneId = newScene.id;
|
||||
saveToStorage();
|
||||
renderSceneTabs();
|
||||
renderCanvas();
|
||||
renderTimeline();
|
||||
}
|
||||
|
||||
function switchScene(sceneId) {
|
||||
if (appState.playback.isPlaying) {
|
||||
stopAnimation();
|
||||
}
|
||||
appState.currentSceneId = sceneId;
|
||||
saveToStorage();
|
||||
renderSceneTabs();
|
||||
renderCanvas();
|
||||
renderTimeline();
|
||||
updateFrameCounter();
|
||||
}
|
||||
|
||||
function deleteScene(sceneId) {
|
||||
if (appState.scenes.length <= 1) {
|
||||
alert('至少保留一个场景！');
|
||||
return;
|
||||
}
|
||||
appState.scenes = appState.scenes.filter(s => s.id !== sceneId);
|
||||
if (appState.currentSceneId === sceneId) {
|
||||
appState.currentSceneId = appState.scenes[0].id;
|
||||
}
|
||||
saveToStorage();
|
||||
renderSceneTabs();
|
||||
renderCanvas();
|
||||
renderTimeline();
|
||||
}
|
||||
|
||||
function getCurrentScene() {
|
||||
return appState.scenes.find(s => s.id === appState.currentSceneId);
|
||||
}
|
||||
|
||||
function getCurrentFrame() {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene) return null;
|
||||
return scene.frames[scene.currentFrameIndex];
|
||||
}// ==================== 帧管理 ====================
|
||||
function addFrame() {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene) return;
|
||||
|
||||
// 深拷贝当前帧的素材状态
|
||||
const currentFrame = scene.frames[scene.currentFrameIndex];
|
||||
const newFrame = {
|
||||
id: scene.nextFrameId++,
|
||||
assets: JSON.parse(JSON.stringify(currentFrame.assets))
|
||||
};
|
||||
|
||||
// 在当前帧后插入新帧
|
||||
scene.frames.splice(scene.currentFrameIndex + 1, 0, newFrame);
|
||||
scene.currentFrameIndex++;
|
||||
|
||||
saveToStorage();
|
||||
renderTimeline();
|
||||
renderCanvas();
|
||||
updateFrameCounter();
|
||||
}
|
||||
|
||||
function deleteFrame() {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene) return;
|
||||
|
||||
if (scene.frames.length <= 1) {
|
||||
alert('至少保留一帧！');
|
||||
return;
|
||||
}
|
||||
|
||||
scene.frames.splice(scene.currentFrameIndex, 1);
|
||||
if (scene.currentFrameIndex >= scene.frames.length) {
|
||||
scene.currentFrameIndex = scene.frames.length - 1;
|
||||
}
|
||||
|
||||
saveToStorage();
|
||||
renderTimeline();
|
||||
renderCanvas();
|
||||
updateFrameCounter();
|
||||
}
|
||||
|
||||
function switchFrame(frameIndex) {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene || frameIndex < 0 || frameIndex >= scene.frames.length) return;
|
||||
|
||||
// 保存当前画布状态到当前帧
|
||||
captureFrame();
|
||||
|
||||
scene.currentFrameIndex = frameIndex;
|
||||
saveToStorage();
|
||||
renderTimeline();
|
||||
renderCanvas();
|
||||
updateFrameCounter();
|
||||
}
|
||||
|
||||
function captureFrame() {
|
||||
// 画布状态实时保存在 assets 中，无需额外操作
|
||||
saveToStorage();
|
||||
}
|
||||
|
||||
// ==================== 播放引擎 ====================
|
||||
function playAnimation() {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene || scene.frames.length <= 1) return;
|
||||
|
||||
appState.playback.isPlaying = true;
|
||||
updatePlaybackControls();
|
||||
|
||||
const intervalMs = 1000 / appState.playback.fps;
|
||||
|
||||
appState.playback.intervalId = setInterval(() => {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene) return;
|
||||
|
||||
scene.currentFrameIndex++;
|
||||
if (scene.currentFrameIndex >= scene.frames.length) {
|
||||
scene.currentFrameIndex = 0; // 循环播放
|
||||
}
|
||||
|
||||
renderCanvas();
|
||||
renderTimeline();
|
||||
updateFrameCounter();
|
||||
saveToStorage();
|
||||
}, intervalMs);
|
||||
}
|
||||
|
||||
function pauseAnimation() {
|
||||
appState.playback.isPlaying = false;
|
||||
if (appState.playback.intervalId) {
|
||||
clearInterval(appState.playback.intervalId);
|
||||
appState.playback.intervalId = null;
|
||||
}
|
||||
updatePlaybackControls();
|
||||
}
|
||||
|
||||
function stopAnimation() {
|
||||
pauseAnimation();
|
||||
const scene = getCurrentScene();
|
||||
if (scene) {
|
||||
scene.currentFrameIndex = 0;
|
||||
renderCanvas();
|
||||
renderTimeline();
|
||||
updateFrameCounter();
|
||||
saveToStorage();
|
||||
}
|
||||
}
|
||||
|
||||
function togglePlayback() {
|
||||
if (appState.playback.isPlaying) {
|
||||
pauseAnimation();
|
||||
} else {
|
||||
playAnimation();
|
||||
}
|
||||
}
|
||||
|
||||
function setFPS(fps) {
|
||||
appState.playback.fps = parseInt(fps);
|
||||
document.getElementById('fps-display').textContent = fps + ' FPS';
|
||||
saveToStorage();
|
||||
|
||||
// 如果正在播放，重启定时器以应用新帧率
|
||||
if (appState.playback.isPlaying) {
|
||||
pauseAnimation();
|
||||
playAnimation();
|
||||
}
|
||||
}
|
||||
|
||||
function updatePlaybackControls() {
|
||||
const btnPlay = document.getElementById('btn-play');
|
||||
if (appState.playback.isPlaying) {
|
||||
btnPlay.textContent = '⏸️';
|
||||
btnPlay.title = '暂停';
|
||||
} else {
|
||||
btnPlay.textContent = '▶️';
|
||||
btnPlay.title = '播放';
|
||||
}
|
||||
}
|
||||
|
||||
function updateFrameCounter() {
|
||||
const scene = getCurrentScene();
|
||||
if (!scene) return;
|
||||
const counter = document.getElementById('frame-counter');
|
||||
counter.textContent = `帧 ${scene.currentFrameIndex + 1}/${scene.frames.length}`;
|
||||
}// ==================== 渲染函数 ====================
|
||||
function renderSceneTabs() {
|
||||
const tabsList = document.getElementById('tabs-list');
|
||||
tabsList.innerHTML = '';
|
||||
|
||||
appState.scenes.forEach(scene => {
|
||||
const tab = document.createElement('div');
|
||||
tab.className = 'scene-tab' + (scene.id === appState.currentSceneId ? ' active' : '');
|
||||
tab.innerHTML = `
|
||||
${scene.name}
|
||||
<span class="close-btn" onclick="event.stopPropagation(); deleteScene(${scene.id})">×</span>
|
||||
`;
|
||||
tab.onclick = () => switchScene(scene.id);
|
||||
tabsList.appendChild(tab);
|
||||
});
|
||||
}
|
||||
|
||||
function renderTimeline() {
|
||||
const timelineFrames = document.getElementById('timeline-frames');
|
||||
timelineFrames.innerHTML = '';
|
||||
|
||||
const scene = getCurrentScene();
|
||||
if (!scene) return;
|
||||
|
||||
scene.frames.forEach((frame, index) => {
|
||||
const thumb = document.createElement('div');
|
||||
thumb.className = 'frame-thumb' + (index === scene.currentFrameIndex ? ' active' : '');
|
||||
thumb.setAttribute('data-frame', index + 1);
|
||||
thumb.textContent = `帧 ${index + 1}`;
|
||||
thumb.onclick = () => switchFrame(index);
|
||||
timelineFrames.appendChild(thumb);
|
||||
});
|
||||
}
|
||||
|
||||
function renderCanvas() {
|
||||
// 清空画布
|
||||
ctx.fillStyle = '#ffffff';
|
||||
ctx.fillRect(0, 0, canvas.width, canvas.height);
|
||||
|
||||
const frame = getCurrentFrame();
|
||||
if (!frame) return;
|
||||
|
||||
// 绘制所有素材
|
||||
frame.assets.forEach(asset => {
|
||||
ctx.font = '48px Arial';
|
||||
ctx.textAlign = 'center';
|
||||
ctx.textBaseline = 'middle';
|
||||
|
||||
// 绘制阴影
|
||||
ctx.shadowColor = 'rgba(0,0,0,0.3)';
|
||||
ctx.shadowBlur = 4;
|
||||
ctx.shadowOffsetX = 2;
|
||||
ctx.shadowOffsetY = 2;
|
||||
|
||||
ctx.fillText(asset.emoji, asset.x, asset.y);
|
||||
|
||||
// 重置阴影
|
||||
ctx.shadowColor = 'transparent';
|
||||
ctx.shadowBlur = 0;
|
||||
ctx.shadowOffsetX = 0;
|
||||
ctx.shadowOffsetY = 0;
|
||||
|
||||
// 如果是选中状态，绘制边框
|
||||
if (asset.selected) {
|
||||
ctx.strokeStyle = '#e94560';
|
||||
ctx.lineWidth = 2;
|
||||
ctx.setLineDash([5, 5]);
|
||||
ctx.strokeRect(asset.x - 30, asset.y - 30, 60, 60);
|
||||
ctx.setLineDash([]);
|
||||
}
|
||||
});
|
||||
}
|
||||
|
||||
// ==================== 素材拖放 ====================
|
||||
function setupEventListeners() {
|
||||
// 素材库拖放
|
||||
const assetItems = document.querySelectorAll('.asset-item');
|
||||
assetItems.forEach(item => {
|
||||
item.addEventListener('dragstart', (e) => {
|
||||
e.dataTransfer.setData('type', item.dataset.type);
|
||||
e.dataTransfer.setData('emoji', item.dataset.emoji);
|
||||
});
|
||||
});
|
||||
|
||||
// 画布接收拖放
|
||||
canvas.addEventListener('dragover', (e) => {
|
||||
e.preventDefault();
|
||||
});
|
||||
|
||||
canvas.addEventListener('drop', (e) => {
|
||||
e.preventDefault();
|
||||
const type = e.dataTransfer.getData('type');
|
||||
const emoji = e.dataTransfer.getData('emoji');
|
||||
|
||||
if (emoji) {
|
||||
const rect = canvas.getBoundingClientRect();
|
||||
const x = e.clientX - rect.left;
|
||||
const y = e.clientY - rect.top;
|
||||
|
||||
addAssetToCanvas(emoji, x, y);
|
||||
}
|
||||
});
|
||||
|
||||
// 画布点击选择/移动
|
||||
let isDragging = false;
|
||||
let dragStartX, dragStartY;
|
||||
let selectedAsset = null;
|
||||
|
||||
canvas.addEventListener('mousedown', (e) => {
|
||||
const rect = canvas.getBoundingClientRect();
|
||||
const x = e.clientX - rect.left;
|
||||
const y = e.clientY - rect.top;
|
||||
|
||||
const frame = getCurrentFrame();
|
||||
if (!frame) return;
|
||||
|
||||
// 查找点击的素材（从后往前，优先选上层的）
|
||||
selectedAsset = null;
|
||||
for (let i = frame.assets.length - 1; i >= 0; i--) {
|
||||
const asset = frame.assets[i];
|
||||
const dist = Math.sqrt((x - asset.x) ** 2 + (y - asset.y) ** 2);
|
||||
if (dist < 30) {
|
||||
selectedAsset = asset;
|
||||
// 更新选中状态
|
||||
frame.assets.forEach(a => a.selected = false);
|
||||
asset.selected = true;
|
||||
isDragging = true;
|
||||
dragStartX = x - asset.x;
|
||||
dragStartY = y - asset.y;
|
||||
renderCanvas();
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// 如果没点到素材，取消所有选中
|
||||
if (!selectedAsset) {
|
||||
frame.assets.forEach(a => a.selected = false);
|
||||
renderCanvas();
|
||||
}
|
||||
});
|
||||
|
||||
canvas.addEventListener('mousemove', (e) => {
|
||||
if (!isDragging || !selectedAsset) return;
|
||||
|
||||
const rect = canvas.getBoundingClientRect();
|
||||
const x = e.clientX - rect.left;
|
||||
const y = e.clientY - rect.top;
|
||||
|
||||
selectedAsset.x = x - dragStartX;
|
||||
selectedAsset.y = y - dragStartY;
|
||||
|
||||
// 边界限制
|
||||
selectedAsset.x = Math.max(30, Math.min(canvas.width - 30, selectedAsset.x));
|
||||
selectedAsset.y = Math.max(30, Math.min(canvas.height - 30, selectedAsset.y));
|
||||
|
||||
renderCanvas();
|
||||
});
|
||||
|
||||
canvas.addEventListener('mouseup', () => {
|
||||
if (isDragging) {
|
||||
isDragging = false;
|
||||
saveToStorage();
|
||||
}
|
||||
});
|
||||
|
||||
// 键盘删除
|
||||
document.addEventListener('keydown', (e) => {
|
||||
if (e.key === 'Delete' || e.key === 'Backspace') {
|
||||
const frame = getCurrentFrame();
|
||||
if (!frame) return;
|
||||
|
||||
const selectedIndex = frame.assets.findIndex(a => a.selected);
|
||||
if (selectedIndex !== -1) {
|
||||
frame.assets.splice(selectedIndex, 1);
|
||||
renderCanvas();
|
||||
saveToStorage();
|
||||
}
|
||||
}
|
||||
});
|
||||
|
||||
// 导入文件监听
|
||||
document.getElementById('import-file').addEventListener('change', handleImport);
|
||||
}
|
||||
|
||||
function addAssetToCanvas(emoji, x, y) {
|
||||
const frame = getCurrentFrame();
|
||||
if (!frame) return;
|
||||
|
||||
// 取消其他选中
|
||||
frame.assets.forEach(a => a.selected = false);
|
||||
|
||||
const newAsset = {
|
||||
id: appState.nextAssetId++,
|
||||
type: 'emoji',
|
||||
emoji: emoji,
|
||||
x: x,
|
||||
y: y,
|
||||
selected: true
|
||||
};
|
||||
|
||||
frame.assets.push(newAsset);
|
||||
renderCanvas();
|
||||
saveToStorage();
|
||||
}// ==================== 导出导入 ====================
|
||||
function exportScene() {
|
||||
const dataStr = JSON.stringify(appState, null, 2);
|
||||
const blob = new Blob([dataStr], { type: 'application/json' });
|
||||
const url = URL.createObjectURL(blob);
|
||||
|
||||
const a = document.createElement('a');
|
||||
a.href = url;
|
||||
a.download = `hololake-scene-${Date.now()}.json`;
|
||||
document.body.appendChild(a);
|
||||
a.click();
|
||||
document.body.removeChild(a);
|
||||
URL.revokeObjectURL(url);
|
||||
}
|
||||
|
||||
function importScene() {
|
||||
document.getElementById('import-file').click();
|
||||
}
|
||||
|
||||
function handleImport(e) {
|
||||
const file = e.target.files[0];
|
||||
if (!file) return;
|
||||
|
||||
const reader = new FileReader();
|
||||
reader.onload = (event) => {
|
||||
try {
|
||||
const imported = JSON.parse(event.target.result);
|
||||
|
||||
// 验证数据结构
|
||||
if (!imported.scenes || !Array.isArray(imported.scenes)) {
|
||||
throw new Error('无效的数据格式');
|
||||
}
|
||||
|
||||
// 向后兼容处理
|
||||
imported.scenes = imported.scenes.map(scene => {
|
||||
if (!scene.frames) {
|
||||
return {
|
||||
...scene,
|
||||
currentFrameIndex: 0,
|
||||
frames: [{
|
||||
id: 1,
|
||||
assets: scene.assets || []
|
||||
}],
|
||||
nextFrameId: 2
|
||||
};
|
||||
}
|
||||
return scene;
|
||||
});
|
||||
|
||||
if (!imported.playback) {
|
||||
imported.playback = { isPlaying: false, fps: 4, intervalId: null, currentFrameIndex: 0 };
|
||||
}
|
||||
|
||||
appState = imported;
|
||||
saveToStorage();
|
||||
renderSceneTabs();
|
||||
renderCanvas();
|
||||
renderTimeline();
|
||||
updatePlaybackControls();
|
||||
updateFrameCounter();
|
||||
|
||||
alert('导入成功！');
|
||||
} catch (err) {
|
||||
alert('导入失败：' + err.message);
|
||||
}
|
||||
};
|
||||
reader.readAsText(file);
|
||||
|
||||
// 清空 input，允许重复导入同一文件
|
||||
e.target.value = '';
|
||||
}
|
||||
|
||||
// ==================== 截图导出 ====================
|
||||
function exportScreenshot() {
|
||||
// 临时取消选中状态
|
||||
const frame = getCurrentFrame();
|
||||
if (!frame) return;
|
||||
|
||||
const originalSelected = frame.assets.map(a => a.selected);
|
||||
frame.assets.forEach(a => a.selected = false);
|
||||
renderCanvas();
|
||||
|
||||
// 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);
|
||||
Loading…
Reference in New Issue