js五子棋游戲代碼分享

HTML代碼

<canvas id="game"></canvas>

CSS代碼

* {
  margin: 0;
  padding: 0;
}

#game {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  margin: auto;
  box-shadow: -2px -2px 2px #efefef, 5px 5px 5px #b9b9b9;
}

JS代碼

window.onload = () => {
    let arr = []
    for(let i=0;i<15;i++) {
        arr[i] = []
        for(let j=0;j<15;j++) {
            arr[i][j] = 1
        }
    }
    let count = true
    let gamer = document.querySelector('#game')
    gamer.width = 450
    gamer.height = 450
    let context = gamer.getContext('2d')
    context.strokeStyle = '#999999'

    for(let i=0;i<15;i++) {
        context.moveTo(15, 15 + i * 30)
        context.lineTo(435, 15 + i * 30)
        context.stroke()
    }
    for(let i=0;i<15;i++) {
        context.moveTo(15 + i * 30, 15)
        context.lineTo(15 + i * 30, 435)
        context.stroke()
    }
    let black = (x, y) => {
        let gradient = context.createRadialGradient(x, y, 3, x, y, 13)
        gradient.addColorStop(0, '#999999')
        gradient.addColorStop(1, '#000000')
        context.fillStyle = gradient
        context.beginPath()
        context.arc(x, y, 13, 0, 2 * Math.PI)
        context.fill()
        context.closePath()
    }
    let white = (x, y) => {
        let gradient = context.createRadialGradient(x, y, 3, x, y, 13)
        gradient.addColorStop(0, '#ffffff')
        gradient.addColorStop(1, '#888888')
        context.fillStyle = gradient
        context.beginPath()
        context.arc(x, y, 13, 0, 2 * Math.PI)
        context.fill()
        context.closePath()
    }

    gamer.onclick = (e) => {
        let x = e.offsetX
        let y = e.offsetY
        x = Math.floor(x / 30)
        y = Math.floor(y / 30)
        if(arr[x][y] != 0) {
            if(count == true) {
                black(x*30+15, y*30+15)
                arr[x][y] = 0
                count = !count
            }else {
                white(x*30+15, y*30+15)
                arr[x][y] = 0
                count = !count
            }
        }
    }
}