574 day(フレームアニメーション.html)

    
    
    





    var myCanvas = document.querySelector('canvas');
    var ctx = myCanvas.getContext('2d');

    var image = new Image();
    image.onload = function () {
        /* */
        /* */
        var imageWidth = image.width;
        var imageHeight = image.height;
        /* */
        var personWidth = imageWidth/4;
        var personHeight = imageHeight/4;
        /* */
        /*       */
        var index = 0;

        /* */
        /* */
        var x0 = ctx.canvas.width /2 - personWidth / 2;
        var y0 = ctx.canvas.height /2 - personHeight / 2;

        ctx.drawImage(image,0,0,personWidth,personHeight,x0,y0,personWidth,personHeight);
        setInterval(function () {
            index ++;
            ctx.clearRect(0,0,ctx.canvas.width,ctx.canvas.height);
            ctx.drawImage(image,index * personWidth,0,personWidth,personHeight,x0,y0,personWidth,personHeight);
            if(index >= 3){
                index = 0;
            }
        },1000);

    };
    image.src = 'image/04.png';