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@@ -40,6 +40,8 @@
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</div>
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<button class="save-btn" id="savePositionsBtn">保存位置</button>
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<button class="save-btn" id="markCenterBtn" style="margin-top: 10px;">标记中心点</button>
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<button class="save-btn" id="startAnimationBtn" style="margin-top: 10px;">开始</button>
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<button class="save-btn" id="resetBtn" style="margin-top: 10px;">重置</button>
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</div>
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</div>
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<div id="contextMenu"><div id="deleteArrow">删除箭头</div></div>
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@@ -51,11 +53,83 @@
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const imageButtons = document.querySelectorAll('.image-btn');
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const saveBtn = document.getElementById('savePositionsBtn');
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const markCenterBtn = document.getElementById('markCenterBtn');
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const startAnimationBtn = document.getElementById('startAnimationBtn');
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const resetBtn = document.getElementById('resetBtn');
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const contextMenu = document.getElementById('contextMenu');
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const deleteArrow = document.getElementById('deleteArrow');
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let selectedArrow = null;
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let centerDot = null;
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// 添加重置按钮事件监听器
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resetBtn.addEventListener('click', function() {
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location.reload();
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});
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// 添加开始按钮事件监听器
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startAnimationBtn.addEventListener('click', startAnimation);
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// 动画控制函数 - 确保在DOMContentLoaded回调内部定义
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function startAnimation() {
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// 检查是否已设置中心点
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if (!centerDot) {
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alert('请先确定中心点');
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return;
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}
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// 获取中心点坐标
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const centerX = parseFloat(centerDot.style.left);
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const centerY = parseFloat(centerDot.style.top);
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// 获取所有箭头
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const arrows = document.querySelectorAll('.arrow-container');
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if (arrows.length === 0) {
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alert('没有可移动的箭头');
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return;
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}
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// 为每个箭头添加动画
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arrows.forEach(arrow => {
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animateArrow(arrow, centerX, centerY);
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});
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}
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// 单个箭头动画函数 - 同样放在DOMContentLoaded回调内部
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function animateArrow(arrow, targetX, targetY) {
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// 获取箭头当前位置
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let currentX = parseFloat(arrow.style.left) || 0;
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let currentY = parseFloat(arrow.style.top) || 0;
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// 动画帧函数
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function updatePosition() {
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// 计算到目标的距离
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const dx = targetX - currentX;
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const dy = targetY - currentY;
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const distance = Math.sqrt(dx * dx + dy * dy);
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// 如果距离小于5px,停止动画
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if (distance < 5) {
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// 确保箭头最终位置准确
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arrow.style.left = targetX + 'px';
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arrow.style.top = targetY + 'px';
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return;
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}
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// 计算移动步长(距离的5%,确保靠近目标时减速)
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const step = distance * 0.05;
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const moveX = (dx / distance) * step;
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const moveY = (dy / distance) * step;
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// 更新位置
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currentX += moveX;
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currentY += moveY;
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arrow.style.left = currentX + 'px';
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arrow.style.top = currentY + 'px';
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// 继续动画
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requestAnimationFrame(updatePosition);
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}
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// 开始动画
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updatePosition();
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}
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// 加载保存的元素
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loadAllElements();
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@@ -221,6 +295,14 @@
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top: container.style.top
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});
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});
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// 新增:保存中心点数据
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if (centerDot) {
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elements.push({
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type: 'center',
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left: centerDot.style.left,
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top: centerDot.style.top
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});
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}
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localStorage.setItem('mapElements', JSON.stringify(elements));
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alert('保存成功!');
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}
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@@ -233,12 +315,28 @@
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if (element.type === 'arrow') {
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addImageToContainer(element.imagePath, {left: element.left, top: element.top}, element.text);
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}
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// 新增:处理中心点数据
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else if (element.type === 'center') {
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// 如果已有中心点,先移除
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if (centerDot) {
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centerDot.remove();
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}
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// 创建新的中心点
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centerDot = document.createElement('div');
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centerDot.className = 'center-dot';
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centerDot.style.left = element.left;
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centerDot.style.top = element.top;
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backgroundContainer.appendChild(centerDot);
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}
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});
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} catch (e) { console.error('加载失败:', e); }
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}
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}
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});
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}); // DOMContentLoaded回调结束
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// 确保这里没有残留的startAnimation函数定义
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</script>
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</body>
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</html>
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