QT小项目---2048小游戏
2024-06-09 07:13:05
目录
效果展示
游戏简介
游戏详情
操作指南
操作技巧
代码实现
QWidget.h
Widget.cpp
GameWidget.h
GameWidget.cpp
总结
效果展示
游戏简介
游戏详情
2048是一个经典的拼图游戏，目标很简单；达到2048。在网格上移动平铺并将相同的数字合并为一个。提前计划，并注意新的瓷砖产卵，这可能会阻止你加入你的数字。
操作指南
每次可以选择上下左右其中一个方向去滑动，每滑动一次，所有的数字方块都会往滑动的方向靠拢外，系统也会在空白的地方乱数出现一个数字方块，相同数字的方块在靠拢、相撞时会相加。不断的叠加最终拼凑出2048这个数字就算成功。
操作技巧
最大数尽可能放在角落。
数字按顺序紧邻排列。
首先满足最大数和次大数在的那一列/行是满的。
时刻注意活动较大数（32以上）旁边要有相近的数。
以大数所在的一行为主要移动方向
不要急于“清理桌面”。
代码实现
QWidget.h
#ifndef WIDGET_H
#define WIDGET_H#include <QWidget>
#include <QLabel>
#include <QPushButton>
#include <QMessageBox>
#include <QApplication>
#include <QDesktopWidget>
#include <QFile>
#include <QtGui>
#include "GameWidget.h"class Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent = 0);~Widget();private:QPushButton *restartBtn;QPushButton *closeBtn;QLabel *titleLabel;QLabel *tipsLabel;QLabel *scoreLbl;QLabel *highScoreLbl;GameWidget *gameWidget;// 宽度和高度的缩放比例 用来使窗口部件随主窗口的尺寸改变而改变位置与尺寸qreal ratioW, ratioH;int highScore;QPoint dragPosition;bool bPressFlag;protected:void resizeEvent(QResizeEvent *);void keyPressEvent(QKeyEvent * event);void mousePressEvent(QMouseEvent *event);void mouseMoveEvent(QMouseEvent *event);void mouseReleaseEvent(QMouseEvent *event);public slots:void onScoreInc(int);void onGameOver();
};#endif // WIDGET_H
Widget.cpp
#include "widget.h"Widget::Widget(QWidget *parent): QWidget(parent, Qt::FramelessWindowHint), bPressFlag(false)
{setAutoFillBackground(true);QPalette pal = palette();pal.setColor(QPalette::Background, QColor("#808ad2"));setPalette(pal);titleLabel = new QLabel(tr("2048"), this);titleLabel->setStyleSheet("color:#746D65;");titleLabel->setFont(QFont("arial", 40, QFont::Black));tipsLabel = new QLabel(tr("Join the numbers and get to the 2048 tile!"), this);tipsLabel->setStyleSheet("color:#B3AFA7;");tipsLabel->setFont(QFont("arial", 8, QFont::Normal));highScore = 0;QFile file("score.j");if (file.open(QIODevice::ReadOnly)){file.read((char *)&highScore, sizeof(highScore));file.close();}gameWidget = new GameWidget(this);gameWidget->setFocus();connect(gameWidget, SIGNAL(ScoreInc(int)), this, SLOT(onScoreInc(int)));connect(gameWidget, SIGNAL(GameOver()), this, SLOT(onGameOver()));connect(gameWidget, SIGNAL(win()), this, SLOT(onWin()));QFont font;font.setFamily("Arial");font.setBold(true);font.setPixelSize(15);restartBtn = new QPushButton("New Game", this);restartBtn->setFont(font);restartBtn->setStyleSheet("QPushButton{color:#55285f;background:#a7b7e8;border-style:flat;}");restartBtn->setFocusPolicy(Qt::NoFocus);connect(restartBtn, SIGNAL(clicked()), gameWidget, SLOT(restart()));highScoreLbl = new QLabel(QString("BEST\n%1").arg(highScore),this);highScoreLbl->setFont(font);highScoreLbl->setAlignment(Qt::AlignCenter);highScoreLbl->setStyleSheet("QLabel{color:#ee3b34;background:#ccc3b4}");scoreLbl = new QLabel("SCORE\n0", this);scoreLbl->setFont(font);scoreLbl->setAlignment(Qt::AlignCenter);scoreLbl->setStyleSheet("QLabel{color:#fcb43c;background:#7e7764}");closeBtn = new QPushButton("x", this);closeBtn->setFocusPolicy(Qt::NoFocus);closeBtn->setFont(QFont("Arial", 11, QFont::Normal));closeBtn->setStyleSheet("QPushButton{border-style:flat;color:#BDAD9F}""QPushButton:hover{border-style:flat;color:#FF0000}");closeBtn->setCursor(Qt::PointingHandCursor);closeBtn->setGeometry(400 - 18, 3, 15, 15);connect(closeBtn, SIGNAL(clicked()), this, SLOT(close()));// 重置窗口大小resize(400, 510);move((QApplication::desktop()->width() - width())/2, (QApplication::desktop()->height() - height())/2);}Widget::~Widget()
{delete restartBtn;delete scoreLbl;delete highScoreLbl;delete gameWidget;
}void Widget::onScoreInc(int score)
{scoreLbl->setText(QString("Score:\n %1").arg(score));if (score > highScore){highScore = score;highScoreLbl->setText(QString("BEST:\n %1").arg(highScore));// 将新的最高分存入文件QFile file("score.j");file.open(QIODevice::WriteOnly);file.write((char *)&highScore, sizeof(highScore));file.close();}
}void Widget::onGameOver()
{QMessageBox::information(this, "GameOver", "You lost !");
}void Widget::resizeEvent(QResizeEvent *)
{// 计算宽度和高度的缩放比例ratioW = width() / 400.0f;ratioH = height() / 510.0f;// 重置子部件大小和位置titleLabel->setGeometry(20 * ratioW, 40 * ratioH , 150 * ratioW, 50 * ratioH);tipsLabel->setGeometry(20 * ratioW, 100 * ratioH , 300 * ratioW, 20 * ratioH);gameWidget->setGeometry(18 * ratioW, 140 * ratioH, 365 * ratioW, 365 * ratioH);restartBtn->setGeometry(280 * ratioW, 90 * ratioH, 100 * ratioW, 30 * ratioH);highScoreLbl->setGeometry(300 * ratioW, 40 * ratioH, 80 * ratioW, 40 * ratioH);scoreLbl->setGeometry(210 * ratioW, 40 * ratioH, 80 * ratioW, 40 * ratioH);}void Widget::keyPressEvent(QKeyEvent *event)
{gameWidget->setFocus();QWidget::keyPressEvent(event);
}
void Widget::mousePressEvent ( QMouseEvent * event)
{bPressFlag = true;dragPosition = event->pos();QWidget::mousePressEvent(event);
}void Widget::mouseMoveEvent(QMouseEvent *event)
{if (bPressFlag) {QPoint relaPos(QCursor::pos() - dragPosition);move(relaPos);}QWidget::mouseMoveEvent(event);
}void Widget::mouseReleaseEvent(QMouseEvent *event)
{bPressFlag = false;QWidget::mouseReleaseEvent(event);
}
GameWidget.h
#ifndef GAMEWIDGET_H
#define GAMEWIDGET_H#include <QWidget>
#include <QMouseEvent>
#include <QEventLoop>
#include <QTimer>
#include <QPainter>
#include <QList>enum GestureDirect
{LEFT = 0,RIGHT = 1,UP = 2,DOWN = 3
};// 定义动画的类型
enum AnimationType
{MOVE = 0, // 方格移动动画APPEARANCE = 1 // 方格出现动画
};// 动画结构体
struct Animation
{AnimationType type; // 动画类型GestureDirect direct; // 方向QPointF startPos; // 起始点坐标 出现动画仅仅使用这个坐标QPointF endPos; // 终止点坐标 移动动画的终点坐标int digit; // 数码int digit2; // 第二数码 数码可能被合并
};class GameWidget : public QWidget
{Q_OBJECT
public:explicit GameWidget(QWidget *parent = 0);protected:void keyPressEvent(QKeyEvent * event);private:int board[4][4];int digitCount;int score;QPoint startPos;QList<Animation> animationList;qreal w, h;QImage *cacheImg;bool isAnimating;bool checkGameOver();int getBitCount(int);bool playAnimation(Animation&, QPainter&);void paintEvent(QPaintEvent *);signals:void GestureMove(GestureDirect);void ScoreInc(int);void GameOver();
public slots:void onGestureMove(GestureDirect);void restart();};#endif // GAMEWIDGET_H
GameWidget.cpp
#include <QDebug>
#include "GameWidget.h"// 颜色数组 存储每个数字对应的背景色
QColor digitBkg[11] = {QColor::fromRgb(0xEE, 0xE5, 0xDB), QColor::fromRgb(0xEC, 0xE0, 0xC8),QColor::fromRgb(0xF2, 0xAF, 0x78), QColor::fromRgb(0xEE, 0x8A, 0x54),QColor::fromRgb(0xFE, 0x76, 0x5E), QColor::fromRgb(0xE7, 0x58, 0xC),QColor::fromRgb(0xFF, 0x66, 0x66), QColor::fromRgb(0xF1, 0xCF, 0x48),QColor::fromRgb(0xCC, 0x33, 0x33), QColor::fromRgb(0xE3, 0xB9, 0x11),QColor::fromRgb(0xFF, 0x00, 0x00)};QPointF dPos[5] = {QPointF(-10, 0), QPointF(10, 0), QPointF(0, -10), QPointF(0, 10), QPointF(-2, -2)};GameWidget::GameWidget(QWidget *parent) :QWidget(parent)
{connect(this, SIGNAL(GestureMove(GestureDirect)), SLOT(onGestureMove(GestureDirect)));memset(board, 0, sizeof(board));board[rand() % 4][rand() % 4] = 2;while(true) {int x = rand() % 4;int y = rand() % 4;if (board[x][y] != 0) {continue;}else {board[x][y] = 2;break;}}score = 0;digitCount = 2;isAnimating = false;cacheImg = NULL;
}void GameWidget::keyPressEvent(QKeyEvent *event)
{if (isAnimating)return;switch (event->key()) {case Qt::Key_Left:emit GestureMove(LEFT);break;case Qt::Key_Right:emit GestureMove(RIGHT);break;case Qt::Key_Down:emit GestureMove(DOWN);break;case Qt::Key_Up:emit GestureMove(UP);break;default:break;}QWidget::keyPressEvent(event);
}void GameWidget::onGestureMove(GestureDirect direct)
{int i, j, k;Animation a;bool combine = false;switch (direct){case LEFT:for (i = 0; i < 4; i++){j = 0, k = 0, combine = false;while (true){while (j < 4 && board[i][j] == 0)j++;if (j > 3)break;qSwap(board[i][k], board[i][j]);// 记录动画信息a.type = MOVE;a.startPos = QPointF(7 + (w + 5) * j, 7 + (h + 5) * i);a.endPos = QPointF(7 + (w + 5) * k, 7 + (h + 5) * i);a.digit = a.digit2 = board[i][k];a.direct = LEFT;if (!combine && k > 0 && board[i][k] == board[i][k - 1]){board[i][k - 1] <<= 1;board[i][k] = 0;a.digit2 = board[i][k - 1];a.endPos = QPointF(7 + (w + 5) * (k - 1), 7 + (h + 5) * i);score += board[i][k - 1];emit ScoreInc(score);digitCount--;combine = true;}elsek++;j++;// 添加到动画链表animationList.append(a);}}break;case RIGHT:for (i = 0; i < 4; i++){j = 3, k = 3, combine = false;while (true){while (j > -1 && board[i][j] == 0)j--;if (j < 0)break;qSwap(board[i][k], board[i][j]);a.type = MOVE;a.startPos = QPointF(7 + (w + 5) * j, 7 + (h + 5) * i);a.endPos = QPointF(7 + (w + 5) * k, 7 + (h + 5) * i);a.digit = a.digit2 = board[i][k];a.direct = RIGHT;if (!combine && k < 3 && board[i][k] == board[i][k + 1]){board[i][k + 1] <<= 1;board[i][k] = 0;a.digit2 = board[i][k + 1];a.endPos = QPointF(7 + (w + 5) * (k + 1), 7 + (h + 5) * i);score += board[i][k + 1];emit ScoreInc(score);digitCount--;combine = true;}elsek--;j--;animationList.append(a);}}break;case UP:for (i = 0; i < 4; i++){j = 0, k = 0, combine = false;while (true){while (j < 4 && board[j][i] == 0)j++;if (j > 3)break;qSwap(board[k][i], board[j][i]);a.type = MOVE;a.startPos = QPointF(7 + (w + 5) * i, 7 + (h + 5) * j);a.endPos = QPointF(7 + (w + 5) * i, 7 + (h + 5) * k);a.digit = a.digit2 = board[k][i];a.direct = UP;if (!combine && k > 0 && board[k][i] == board[k - 1][i]){board[k - 1][i] <<= 1;board[k][i] = 0;a.digit2 = board[k - 1][i];a.endPos = QPointF(7 + (w + 5) * i, 7 + (h + 5) * (k - 1));score += board[k - 1][i];emit ScoreInc(score);digitCount--;combine = true;}elsek++;j++;animationList.append(a);}}break;case DOWN:for (i = 0; i < 4; i++){j = 3, k = 3, combine = false;while (true){while (j > -1 && board[j][i] == 0)j--;if (j < 0)break;qSwap(board[k][i], board[j][i]);a.type = MOVE;a.startPos = QPointF(7 + (w + 5) * i, 7 + (h + 5) * j);a.endPos = QPointF(7 + (w + 5) * i, 7 + (h + 5) * k);a.digit = a.digit2 = board[k][i];a.direct = DOWN;if (!combine && k < 3 && board[k][i] == board[k + 1][i]){board[k + 1][i] <<= 1;board[k][i] = 0;a.digit2 = board[k + 1][i];a.endPos = QPointF(7 + (w + 5) * i, 7 + (h + 5) * (k + 1));score += board[k + 1][i];emit ScoreInc(score);digitCount--;combine = true;}elsek--;j--;animationList.append(a);}}break;}bool flag_move = false;for(int index = 0; index < animationList.size(); index++) {if (animationList.at(index).startPos != animationList.at(index).endPos) {flag_move = true;break;}}if (digitCount != 16 && flag_move){i = rand() % 4, j = rand() % 4;while (board[i][j] != 0)i = rand() % 4, j = rand() % 4;board[i][j] = 2;a.type = APPEARANCE;a.startPos = a.endPos = QPointF(7 + (w + 5) * j, 7 + (h + 5) * i);a.startPos += QPointF(w / 2, h / 2);a.digit = board[i][j];digitCount++;}else{if (checkGameOver())emit GameOver();}// 开始绘制动画效果isAnimating = true;// 动画列表的迭代器QList<Animation>::iterator it;// 事件循环 用于延时QEventLoop eventLoop;if (cacheImg)delete cacheImg;cacheImg = new QImage(width(), height(), QImage::Format_ARGB32);cacheImg->fill(0);QPainter painter(cacheImg);QFont font;font.setFamily("Consolas");font.setBold(true);font.setPixelSize(40);painter.setFont(font);// 标识所有方格动画是否都播放完毕bool ok = false;while (true){QBrush brush(QColor::fromRgb(114, 126, 174));painter.setBrush(brush);// 设置画笔为空笔 目的是使绘制的图形没有描边painter.setPen(Qt::NoPen);painter.drawRect(2, 2, width() - 4, height() - 4);brush.setColor(QColor::fromRgb(141,166,234));painter.setBrush(brush);for (int i = 0; i < 4; i++)for (int j = 0; j < 4; j++)painter.drawRect(QRectF(7 + (w + 5) * j, 7 + (h + 5) * i, w, h));ok = true;for (it = animationList.begin(); it != animationList.end(); it++)if (!playAnimation(*it, painter))ok = false;update();if (ok)break;// 延时5msQTimer::singleShot(5, &eventLoop, SLOT(quit()));eventLoop.exec();}// 播放方格出现的动画while (!playAnimation(a, painter)){update();QTimer::singleShot(5, &eventLoop, SLOT(quit()));eventLoop.exec();}//清除所有动画animationList.clear();//刷新当前部件isAnimating = false;update();
}bool GameWidget::playAnimation(Animation& a, QPainter& painter)
{bool rtn = false;QBrush brush(Qt::SolidPattern);// 移动方格位置if (a.type == MOVE){switch (a.direct){case LEFT:if (a.startPos.x() > a.endPos.x())a.startPos += dPos[LEFT];elsea.startPos = a.endPos, rtn = true;break;case RIGHT:if (a.startPos.x() < a.endPos.x())a.startPos += dPos[RIGHT];elsea.startPos = a.endPos, rtn = true;break;case UP:if (a.startPos.y() > a.endPos.y())a.startPos += dPos[UP];elsea.startPos = a.endPos, rtn = true;break;case DOWN:if (a.startPos.y() < a.endPos.y())a.startPos += dPos[DOWN];elsea.startPos = a.endPos, rtn = true;}// 如果方格移动到终点if (!rtn){brush.setColor(digitBkg[getBitCount(a.digit)]);painter.setBrush(brush);painter.drawRect(QRectF(a.startPos.x(), a.startPos.y(), w, h));painter.setPen(QColor::fromRgb(0, 0, 0));painter.drawText(QRectF(a.startPos.x(), a.startPos.y(), w, h), Qt::AlignCenter,QString::number(a.digit));}else{brush.setColor(digitBkg[getBitCount(a.digit2)]);painter.setBrush(brush);painter.drawRect(QRectF(a.startPos.x(), a.startPos.y(), w, h));painter.setPen(QColor::fromRgb(0, 0, 0));painter.drawText(QRectF(a.startPos.x(), a.startPos.y(), w, h), Qt::AlignCenter,QString::number(a.digit2));}painter.setPen(Qt::NoPen);}else{// 方格出现的动画效果if (a.startPos.x() > a.endPos.x())a.startPos += dPos[4];elsea.startPos = a.endPos, rtn = true;brush.setColor(digitBkg[getBitCount(a.digit)]);painter.setBrush(brush);painter.drawRect(QRectF(a.startPos.x(), a.startPos.y(),w - 2 * (a.startPos.x() - a.endPos.x()),h - 2 * (a.startPos.y() - a.endPos.y())));painter.setPen(QColor::fromRgb(0, 0, 0));painter.drawText(QRectF(a.endPos.x(), a.endPos.y(), w, h),Qt::AlignCenter, QString::number(a.digit));painter.setPen(Qt::NoPen);}return rtn;
}void GameWidget::paintEvent(QPaintEvent *)
{QPainter painter(this);// 如果正在播放动画效果则绘制缓存位图if (isAnimating){painter.drawImage(0, 0, *cacheImg);return;}QBrush brush(QColor::fromRgb(114, 126, 174));painter.setBrush(brush);// 设置画笔为空笔 目的是使绘制的图形没有描边painter.setPen(Qt::NoPen);painter.drawRect(2, 2, width() - 4, height() - 4);w = width() - 4, h = height() - 4;w = (w - 25) / 4, h = (h - 25) / 4;QFont font;font.setFamily("Consolas");font.setBold(true);font.setPixelSize(40);painter.setFont(font);for (int i = 0; i < 4; i++)for (int j = 0; j < 4; j++){if (board[i][j]){brush.setColor(digitBkg[getBitCount(board[i][j])]);painter.setBrush(brush);painter.drawRect(QRectF(7 + (w + 5) * j, 7 + (h + 5) * i, w, h));painter.setPen(QColor::fromRgb(0, 0, 0));painter.drawText(QRectF(7 + (w + 5) * j, 7 + (h + 5) * i, w, h), Qt::AlignCenter,QString::number(board[i][j]));painter.setPen(Qt::NoPen);}else{brush.setColor(QColor::fromRgb(141,166,234));painter.setBrush(brush);painter.drawRect(QRectF(7 + (w + 5) * j, 7 + (h + 5) * i, w, h));}}
}void GameWidget::restart()
{// 初始化相关变量 同构造函数score = 0;digitCount = 2;memset(board, 0, sizeof(board));board[rand() % 4][rand() % 4] = 2;while(true) {int x = rand() % 4;int y = rand() % 4;if (board[x][y] != 0) {continue;}else {board[x][y] = 2;break;}}emit ScoreInc(score);update();
}bool GameWidget::checkGameOver()
{// 循环检测是否含有相邻的相同数码for (int i = 0; i < 4; i++)for (int j = 0; j < 4; j++){if (j != 3 && board[i][j] == board[i][j + 1])return false;if (i != 3 && board[i][j] == board[i + 1][j])return false;}return true;
}int GameWidget::getBitCount(int n)
{int c = 0;while (n >>= 1)c++;return c - 1;
}
总结
1、编写2048主要考虑几个点；，一个是刷新，需要随机更新2或4，一个是堆叠和合并，因为堆叠过程中由于可能会出现一行4个这些情况，所以合并后需要再次堆叠。
2、游戏中有些小bug，一个是前面提到的一行出现4个2这种情况时堆叠不完美，只会合并前两个；一个是当所有格子出现在一边时，连续向这边移动式，会出现失败提示框
3、若还有其他问题，期待大家帮忙修改雅正（邮箱：1953297167@qq.com)
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