feat:2.6.2 凑十法

This commit is contained in:
R524809
2025-12-24 18:15:01 +08:00
parent 58423eb31a
commit ec3e79ad29
10 changed files with 620 additions and 3 deletions
@@ -0,0 +1,13 @@
{
"navigationBarTitleText": "凑十法练习",
"navigationBarBackgroundColor": "#FFD719",
"homeButton": true,
"backgroundColor": "#F6F6F6",
"enablePullDownRefresh": false,
"usingComponents": {
"toy-button": "../../ui/button/button",
"share-guide-popup": "../../components/share-guide-popup/share-guide-popup",
"math-bottom-buttons": "../../components/math-bottom-buttons/math-bottom-buttons",
"draw-ad": "../../components/draw-ad/draw-ad"
}
}
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// 凑十法练习页面样式
@import '../../base/baseDrawPage.wxss';
+168
View File
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import MakeTenDraw from '../shared/service/makeTenDraw';
import {
createMathPage,
CanvasDataState,
} from '../shared/common/mathPageMixin';
createMathPage({
canvas: null as Canvas | null,
ctx: null as RenderingContext | null,
boxHeight: 0,
boxWidth: 0,
drawService: null as MakeTenDraw | null,
makeTenData: null as {
problems: Array<{
left: number;
right: number;
result: number;
}>;
} | null,
data: {
pageTitle: '凑十法练习',
subTitle: '通过凑十法学习20以内进位加法',
functionId: '',
hasContent: false,
showShareDialog: false,
} as CanvasDataState,
onLoad(options: { id?: string }) {
const functionId = options.id || 'make-ten';
this.initPageInfo(functionId, '凑十法练习');
},
onReady() {
this.initCanvas({
createDrawService: (
canvas: Canvas,
ctx: RenderingContext,
options?: Record<string, any>,
) => {
return new MakeTenDraw(canvas, ctx, options);
},
drawServiceOptions: {
subTitle: this.data.subTitle,
},
onCanvasReady: () => {
// 初始随机生成
this.onRandom();
},
});
},
/**
* 绘制Canvas内容
*/
async drawCanvas() {
if (!this.ctx || !this.drawService || !this.makeTenData) {
return;
}
try {
await this.drawService.draw(this.makeTenData);
this.setData({ hasContent: true });
} catch (error) {
console.error('绘制失败:', error);
this.setData({ hasContent: false });
}
},
/**
* 随机生成
*/
onRandom() {
const problems: Array<{
left: number;
right: number;
result: number;
}> = [];
// 用于记录已生成的题目,避免重复(9+2 和 2+9 视为不同)
const usedProblems = new Set<string>();
// 生成9道题目(3行3列)
let attempts = 0;
const maxAttempts = 1000; // 最大尝试次数,避免无限循环
while (problems.length < 9 && attempts < maxAttempts) {
attempts++;
// 生成两个数,确保:
// 1. 两个加数都在1-9之间(不能是10)
// 2. 和大于10且小于等于20(需要凑十法)
// 3. 大数至少是6(因为5无法满足条件:5 + 最大小数4 = 9 < 11
let left: number;
let right: number;
// 随机决定大数在前还是在后
const bigFirst = Math.random() < 0.5;
if (bigFirst) {
// 大数在前:left 在 6-9 之间,right 在 1-9 之间
// 确保 left + right >= 11 且 left + right <= 20
left = Math.floor(Math.random() * 4) + 6; // 6-9
// right 的最小值:确保 left + right >= 11,即 right >= 11 - left
const minRight = Math.max(1, 11 - left);
// right 的最大值:确保 left + right <= 20,即 right <= 20 - left,且 right <= 9
const maxRight = Math.min(9, 20 - left);
// 确保 right < left(因为 left 是大数)
const actualMaxRight = Math.min(maxRight, left - 1);
// 检查是否有有效的 right 值
if (actualMaxRight >= minRight) {
right =
Math.floor(
Math.random() * (actualMaxRight - minRight + 1),
) + minRight;
} else {
// 如果无法生成有效值,跳过本次循环
continue;
}
} else {
// 大数在后:left 在 1-9 之间,right 在 6-9 之间
// 确保 left + right >= 11 且 left + right <= 20
right = Math.floor(Math.random() * 4) + 6; // 6-9
// left 的最小值:确保 left + right >= 11,即 left >= 11 - right
const minLeft = Math.max(1, 11 - right);
// left 的最大值:确保 left + right <= 20,即 left <= 20 - right,且 left <= 9
const maxLeft = Math.min(9, 20 - right);
// 确保 left < right(因为 right 是大数)
const actualMaxLeft = Math.min(maxLeft, right - 1);
// 检查是否有有效的 left 值
if (actualMaxLeft >= minLeft) {
left =
Math.floor(
Math.random() * (actualMaxLeft - minLeft + 1),
) + minLeft;
} else {
// 如果无法生成有效值,跳过本次循环
continue;
}
}
// 检查是否重复(9+2 和 2+9 视为不同)
const problemKey = `${left},${right}`;
if (usedProblems.has(problemKey)) {
// 如果已存在,跳过本次循环,重新生成
continue;
}
// 添加到已使用集合
usedProblems.add(problemKey);
const result = left + right;
problems.push({
left,
right,
result,
});
}
// 如果尝试次数过多仍未生成足够的题目,输出警告
if (problems.length < 9) {
console.warn(
`只生成了 ${problems.length} 道题目,可能符合条件的题目组合不足`,
);
}
this.makeTenData = { problems };
this.drawCanvas();
},
});
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<!-- 模版不能跨包引用 -->
<import src="../shared/templates/canvas-page-template.wxml" />
<template
is="canvasPageTemplate"
data="{{boxWidth: boxWidth, boxHeight: boxHeight, hasTypeSelector: false, adType: 'mathDraw', disabled: !hasContent, showShareDialog: showShareDialog}}" />