Build a Classic Minesweeper Game in Go with Ebiten – Full Source Code Explained

This guide walks you through creating a fully functional Minesweeper clone in Go using the Ebiten game engine. It covers the data structures, game logic, rendering, input handling, and how to load resources such as tiles and faces.

package main

import (
    "archive/zip"
    "bytes"
    "encoding/base64"
    "fmt"
    "image"
    "image/color"
    "image/png"
    "log"
    "math/rand"
    "strings"
    "time"

    "github.com/hajimehoshi/ebiten/v2"
    "github.com/hajimehoshi/ebiten/v2/ebitenutil"
    "github.com/hajimehoshi/ebiten/v2/inpututil"
)

func main() {
    //goland:noinspection GoDeprecation
    rand.Seed(time.Now().Unix())
    m := &mine{h: 16, w: 30, mineCnt: 99}
    err := m.loadResources()
    if err != nil {
        log.Fatal(err)
    }
    m.initData() // 开局初始数据
    ebiten.SetWindowTitle("Mine Sweeping")
    if err = ebiten.RunGame(m); err != nil {
        log.Fatal(err)
    }
}

const (
    gridHW = 16 // 格子宽高
)

type (
    mine struct {
        h, w int
        playing int // 0: 正常,1: 赢,2: 输
        data [][]*grid
        mineCnt int
        timeStart time.Time
        timeCnt int
        timeX float64
        gridW, gridH int
        faceNum int
        faceX float64
        isFace func(h, w int) bool
        img, num, face []*ebiten.Image
        background *ebiten.Image
        text string
    }

    grid struct {
        data int // 格子数据
        state int // 状态
    }
)

var aroundPos = [][]int{{-1, 1, 0, 0, -1, -1, 1, 1}, {0, 0, -1, 1, -1, 1, -1, 1}}

func (m *mine) around(h, w int, f func(h, w int)) {
    var i, nh, nw int
    for ; i < 8; i++ {
        nh, nw = h+aroundPos[0][i], w+aroundPos[1][i]
        if nh >= 0 && nh < m.h && nw >= 0 && nw < m.w {
            f(nh, nw) // [h,w]周围合法8个位置
        }
    }
}

func (m *mine) initData() {
    var i, j int
    if len(m.data) < m.h {
        m.data = make([][]*grid, m.h)
    }
    for i = 0; i < m.h; i++ {
        if len(m.data[i]) < m.w {
            m.data[i] = make([]*grid, m.w)
        }
    }
    for i = 0; i < m.h; i++ {
        for j = 0; j < m.w; j++ {
            if d := m.data[i][j]; d == nil {
                m.data[i][j] = new(grid)
            } else {
                d.data, d.state = 0, 0
            }
        }
    }
    cnt := 0
    for cnt < m.mineCnt {
        i, j = rand.Intn(m.h), rand.Intn(m.w)
        if d := m.data[i][j]; d.data != 10 {
            cnt++
            d.data = 10
        }
    }
    for i = 0; i < m.h; i++ {
        for j = 0; j < m.w; j++ {
            if d := m.data[i][j]; d.data != 10 {
                m.around(i, j, func(h, w int) {
                    if m.data[h][w].data == 10 {
                        d.data++
                    }
                })
            }
        }
    }
    m.playing = 0
    m.timeStart = time.Time{}
    m.timeCnt = 0
    m.gridW, m.gridH = m.w*gridHW+6, (m.h+3)*gridHW+6
    faceX := m.gridW/2 - 18
    m.faceX = float64(faceX)
    m.isFace = func(h, w int) bool { return h >= 4 && h <= 28 && w >= faceX && w < faceX+24 }
    m.faceNum = 0
    m.timeX = float64(m.gridW - 18)
    ebiten.SetWindowSize(m.gridW, m.gridH)
    m.background = ebiten.NewImage(m.gridW, m.gridH-gridHW)
    m.background.Fill(backgroundColor) // 创建背景图片
    m.text = fmt.Sprintf("H:%d,W:%d,M:%d >", m.h, m.w, m.mineCnt)
}

func (m *mine) cursorPos() (h, w, state int) {
    w, h = ebiten.CursorPosition()
    if m.isFace(h, w) {
        state = 1
    } else {
        w, h = (w-3)/gridHW, h/gridHW-2
        if w >= 0 && w < m.w && h >= 0 && h < m.h {
            state = 2
        }
    }
    return
}

func (m *mine) reactionChain(h, w int) {
    d := m.data[h][w]
    if d.state != 0 {
        return // 已打开或插旗 或 游戏完成
    }
    d.state = -1
    switch d.data {
    case 10:
        if m.playing == 0 {
            m.playing = 2
            d.data = 12 // 游戏结束,标记第1个踩到的雷
        }
    case 0: // 递归点开所有空白区域
        m.around(h, w, func(h, w int) { m.reactionChain(h, w) })
    }
}

func (m *mine) Update() error {
    var state int
    if m.playing != 0 {
        if ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) {
            _, _, state = m.cursorPos()
            if state == 1 {
                m.faceNum = 4
            } else {
                switch m.playing {
                case 1:
                    m.faceNum = 3
                case 2:
                    m.faceNum = 2
                }
            }
        } else if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonLeft) {
            _, _, state = m.cursorPos()
            if state == 1 {
                m.initData() // 左键小脸松开重新开始游戏
            }
        }
        return nil
    }
    if m.timeCnt < 999 && !m.timeStart.IsZero() {
        m.timeCnt = int(time.Since(m.timeStart) / time.Second)
    }
    var d *grid
    var i, j int
    if ebiten.IsMouseButtonPressed(ebiten.MouseButtonLeft) {
        for i = 0; i < m.h; i++ {
            for j = 0; j < m.w; j++ {
                if d = m.data[i][j]; d.state == 1 {
                    d.state = 0
                }
            }
        }
        i, j, state = m.cursorPos()
        switch state {
        case 1:
            m.faceNum = 4
        case 2:
            switch d = m.data[i][j]; d.state {
            case 0:
                d.state = 1
            case -1:
                m.around(i, j, func(ah, aw int) {
                    if ad := m.data[ah][aw]; ad.state == 0 {
                        ad.state = 1
                    }
                })
            }
            m.faceNum = 1
        default:
            m.faceNum = 1
        }
    } else if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonLeft) {
        for i = 0; i < m.h; i++ {
            for j = 0; j < m.w; j++ {
                if d = m.data[i][j]; d.state == 1 {
                    d.state = 0
                }
            }
        }
        m.faceNum = 0
        i, j, state = m.cursorPos()
        switch state {
        case 1:
            m.initData() // 笑脸位置松开左键,重新开局
            return nil
        case 2:
            if m.timeStart.IsZero() {
                m.timeStart = time.Now()
            }
            switch d = m.data[i][j]; d.state {
            case 0: // 判断单击
                m.reactionChain(i, j)
            case -1: // 判断双击
                if d.data >= 1 && d.data <= 8 {
                    state = 0
                    m.around(i, j, func(ah, aw int) {
                        if ad := m.data[ah][aw]; ad.state == 2 {
                            state++
                        }
                    })
                    if d.data == state {
                        m.around(i, j, func(ah, aw int) { m.reactionChain(ah, aw) })
                    }
                }
            }
            if m.playing == 2 {
                m.faceNum = 2 // 游戏结束,输了
                for i = 0; i < m.h; i++ {
                    for j = 0; j < m.w; j++ {
                        switch d = m.data[i][j]; d.state {
                        case 0: // 将所有雷打开
                            if d.data == 10 {
                                d.state = -1
                            }
                        case 2: // 插旗位置不是雷,设置标雷错误
                            if d.data != 10 {
                                d.state = -1
                                d.data = 11
                            }
                        }
                    }
                }
                return nil
            }
            state = 0
            for i = 0; i < m.h; i++ {
                for j = 0; j < m.w; j++ {
                    if d = m.data[i][j]; d.state == -1 {
                        state++
                    }
                }
            }
            // 点开位置 + 总雷数 = 全部格子数, 此时赢
            if state+m.mineCnt == m.h*m.w {
                m.faceNum = 3 // 游戏结束,赢了
                m.playing = 1
                for i = 0; i < m.h; i++ {
                    for j = 0; j < m.w; j++ {
                        if d = m.data[i][j]; d.state == 0 {
                            d.state = 2 // 剩余全插旗
                        }
                    }
                }
                return nil
            }
        }
    } else if inpututil.IsMouseButtonJustReleased(ebiten.MouseButtonRight) {
        i, j, state = m.cursorPos()
        if state == 2 {
            switch d = m.data[i][j]; d.state {
            case 0:
                d.state = 2 // 插旗
            case 2:
                d.state = 0 // 取消
            }
        }
    }
    for k, v := range eKey {
        if inpututil.IsKeyJustReleased(k) {
            switch v {
            case "d":
                if i = len(m.text) - 1; m.text[i] != '>' {
                    m.text = m.text[:i]
                }
            case "e":
                i = strings.IndexByte(m.text, '>') + 1
                var ok bool
                n, _ := fmt.Sscanf(m.text[i:], "%d %d %d", &i, &j, &state)
                switch n {
                case 3: // 读取 h/w/mine 这3个数据
                    if i >= 9 && i <= 45 && j >= 9 && j <= 45 && state >= 10 && state <= (i-1)*(j-1) {
                        m.h, m.w, m.mineCnt = i, j, state
                        ok = true
                    }
                case 1: // 输入单个数字切换难度模式
                    switch i {
                    case 1:
                        m.h, m.w, m.mineCnt = 9, 9, 10 // 初级
                        ok = true
                    case 2:
                        m.h, m.w, m.mineCnt = 16, 16, 40 // 中级
                        ok = true
                    case 3:
                        m.h, m.w, m.mineCnt = 16, 30, 99 // 高级
                        ok = true
                    case 4:
                        m.h, m.w, m.mineCnt = 24, 30, 99 // 最大
                        ok = true
                    }
                }
                if ok {
                    m.initData()
                    return nil
                }
            default:
                m.text += v
            }
        }
    }
    return nil
}

var (
    eKey = map[ebiten.Key]string{
        ebiten.KeyDigit0: "0",
        ebiten.KeyDigit1: "1",
        ebiten.KeyDigit2: "2",
        ebiten.KeyDigit3: "3",
        ebiten.KeyDigit4: "4",
        ebiten.KeyDigit5: "5",
        ebiten.KeyDigit6: "6",
        ebiten.KeyDigit7: "7",
        ebiten.KeyDigit8: "8",
        ebiten.KeyDigit9: "9",
        ebiten.KeySpace:  " ",
        ebiten.KeyBackspace:   "d", // 删除
        ebiten.KeyEnter:       "e", // 回车
        ebiten.KeyNumpadEnter: "e", // 回车
    }
    backgroundColor = color.RGBA{R: 0xc0, G: 0xc0, B: 0xc0, A: 0xff}
)

func (m *mine) Draw(screen *ebiten.Image) {
    screen.DrawImage(m.background, nil)
    ct := m.mineCnt
    op := &ebiten.DrawImageOptions{}
    op.GeoM.Translate(3, 2*gridHW)
    for i := 0; i < m.h; i++ {
        for j := 0; j < m.w; j++ {
            switch d := m.data[i][j]; d.state {
            case 0: // 默认状态
                screen.DrawImage(m.img[15], op)
            case 1: // 按住左键不松开
                screen.DrawImage(m.img[0], op)
            case 2: // 标记旗子
                screen.DrawImage(m.img[14], op)
                ct--
            default: // 按照数据显示
                if d.data == 11 {
                    ct-- // 错误插旗也算标雷
                }
                screen.DrawImage(m.img[d.data], op)
            }
            op.GeoM.Translate(gridHW, 0)
        }
        op.GeoM.Translate(0, gridHW)
        op.GeoM.SetElement(0, 2, 3)
    }
    op.GeoM.Reset()
    op.GeoM.Translate(5, 5)
    var num []int
    if ct >= 0 {
        num = []int{(ct / 100) % 10, (ct / 10) % 10, ct % 10}
    } else {
        ct = -ct // 负数只显示2位
        num = []int{11, (ct / 10) % 10, ct % 10}
    }
    for _, v := range num {
        screen.DrawImage(m.num[v], op)
        op.GeoM.Translate(13, 0)
    }
    op.GeoM.Reset()
    op.GeoM.Translate(m.timeX, 5)
    for _, v := range []int{m.timeCnt % 10, (m.timeCnt / 10) % 10, (m.timeCnt / 100) % 10} {
        screen.DrawImage(m.num[v], op)
        op.GeoM.Translate(-13, 0)
    }
    op.GeoM.Reset()
    op.GeoM.Translate(m.faceX, 4)
    screen.DrawImage(m.face[m.faceNum], op)
    ebitenutil.DebugPrintAt(screen, m.text, 10, m.gridH-gridHW)
}

func (m *mine) Layout(_, _ int) (int, int) { return m.gridW, m.gridH }

func (m *mine) loadResources() error {
    const sd = "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"
    bd, err := base64.StdEncoding.DecodeString(sd)
    if err != nil {
        return err
    }
    data := bytes.NewReader(bd)
    zr, err := zip.NewReader(data, data.Size())
    if err != nil {
        return err
    }
    subImg := func(img image.Image, x, y, num int) []*ebiten.Image {
        ei := ebiten.NewImageFromImage(img)
        ri := make([]*ebiten.Image, num)
        for i := 0; i < num; i++ {
            var rc image.Rectangle
            rc.Min.Y, rc.Max.X = i*y, x
            rc.Max.Y = rc.Min.Y + y
            ri[num-i-1] = ei.SubImage(rc).(*ebiten.Image)
        }
        return ri
    }
    for _, fv := range zr.File {
        fr, err := fv.Open()
        if err != nil {
            return err
        }
        img, err := png.Decode(fr)
        _ = fr.Close()
        if err != nil {
            return err
        }
        switch fv.Name {
        case "ico.png":
            ebiten.SetWindowIcon([]image.Image{img})
        case "mine.png":
            m.img = subImg(img, 16, 16, 16)
        case "num.png":
            m.num = subImg(img, 13, 23, 12)
        case "face.png":
            m.face = subImg(img, 24, 24, 5)
        }
    }
    return nil
}

To run the game on a desktop, compile the project with ./build.bat minesweeper and execute the resulting binary. For a web version, start the provided HTTP server ( ./httpServer) and open http://127.0.0.1:8080 in a browser.