目录结构调整

codes/minipro/calculation/miniprogram/pages/random-draw/random-draw.ts

@@ -0,0 +1,84 @@
+
+Page({
+  data: {
+    names: [] as string[],
+    newName: '',
+    result: '',
+    isRolling: false
+  },
+
+  onLoad() {
+      // Initialize with some default placeholder data optionally, or keep empty
+      // this.setData({ names: ['张三', '李四', '王五'] });
+  },
+
+  onInput(e: any) {
+    this.setData({ newName: e.detail.value });
+  },
+
+  addName() {
+    const name = this.data.newName.trim();
+    if (!name) {
+        wx.showToast({ title: '请输入名字', icon: 'none' });
+        return;
+    }
+    
+    // Check duplication
+    if (this.data.names.includes(name)) {
+       wx.showToast({ title: '名字已存在', icon: 'none' });
+       return;
+    }
+    
+    const names = [...this.data.names, name];
+    this.setData({ names, newName: '' });
+  },
+
+  removeName(e: any) {
+    if (this.data.isRolling) return;
+    
+    const index = e.currentTarget.dataset.index;
+    const names = [...this.data.names];
+    names.splice(index, 1);
+    this.setData({ names });
+    
+    // If deleted the current result, clear result
+    if (this.data.names.indexOf(this.data.result) === -1) {
+        // actually result is a string copy, but if logic requires reset:
+        // this.setData({ result: '' });
+    }
+  },
+
+  startDraw() {
+    if (this.data.isRolling) return;
+    
+    const names = this.data.names;
+    if (names.length < 2) {
+       wx.showToast({ title: '至少需要两个人才能抽取哦', icon: 'none' });
+       return;
+    }
+    
+    this.setData({ isRolling: true, result: '' });
+    
+    let count = 0;
+    // Speed up first then slow down? Or simple uniform interval.
+    // Let's do a simple one first.
+    let baseInterval = 50;
+    let totalRolls = 30;
+    
+    const roll = () => {
+        const randomIndex = Math.floor(Math.random() * names.length);
+        this.setData({ result: names[randomIndex] });
+        
+        count++;
+        if (count < totalRolls) {
+            // dynamic interval could be fun, but keeping it simple for now
+            setTimeout(roll, baseInterval + (count * 5)); // slowing down
+        } else {
+            this.setData({ isRolling: false });
+            wx.vibrateShort({ type: 'heavy' }); 
+        }
+    };
+    
+    roll();
+  }
+});