doverz.github.io/index2.html at main · doverz/doverz.github.io · GitHub

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<!DOCTYPE html>
<html>
<head>
	<title></title>
</head>
<style>
  *{
    padding: 0;
    margin: 0;
  }
  html, body {
  height: 100%;
  padding: 0;
  margin: 0;
  background: #000;
}
canvas {
  position: absolute;
  width: 100%;
  height: 100%;
}
.aa{
  position: fixed;
  left: 50%;
  bottom: 10px;
  color: #ccc
}
#canvas1 {
            position: absolute;
            left: 0px;
            top: 0px;
            /* margin: 20px; */
            /* background: #ffffff; */
            /* border: thin solid #aaaaaa; */
        }

  #canvas2 {
      position: absolute;
      left: 0px;
      top: 0px;
      /* margin: 20px; */
      /* border: thin solid #aaaaaa; */
  }
  #tree {
    position: absolute;
      left: -250px;
      top: 300px;
  }
  #flower{
    position: absolute;
    left: -250 px;
      top: 300px;
  }
</style>
<body>
    <canvas id="canvas1"></canvas>
    <canvas id="canvas2"></canvas>

    <!-- <link rel="stylesheet" href="https://apps.bdimg.com/libs/jquerymobile/1.4.5/jquery.mobile-1.4.5.min.css"> -->
    <script src="https://apps.bdimg.com/libs/jquery/1.10.2/jquery.min.js"></script>
    <script src="https://apps.bdimg.com/libs/jquerymobile/1.4.5/jquery.mobile-1.4.5.min.js"></script>

    <script>
      var utils = {
        norm: function(value, min, max) {
          return (value - min) / (max - min);
        },

        lerp: function(norm, min, max) {
          return (max - min) * norm + min;
        },

        map: function(value, sourceMin, sourceMax, destMin, destMax) {
          return utils.lerp(utils.norm(value, sourceMin, sourceMax), destMin, destMax);
        },

        clamp: function(value, min, max) {
          return Math.min(Math.max(value, Math.min(min, max)), Math.max(min, max));
        },

        distance: function(p0, p1) {
          var dx = p1.x - p0.x,
            dy = p1.y - p0.y;
          return Math.sqrt(dx * dx + dy * dy);
        },

        distanceXY: function(x0, y0, x1, y1) {
          var dx = x1 - x0,
            dy = y1 - y0;
          return Math.sqrt(dx * dx + dy * dy);
        },

        circleCollision: function(c0, c1) {
          return utils.distance(c0, c1) <= c0.radius + c1.radius;
        },

        circlePointCollision: function(x, y, circle) {
          return utils.distanceXY(x, y, circle.x, circle.y) < circle.radius;
        },

        pointInRect: function(x, y, rect) {
          return utils.inRange(x, rect.x, rect.x + rect.radius) &&
            utils.inRange(y, rect.y, rect.y + rect.radius);
        },

        inRange: function(value, min, max) {
          return value >= Math.min(min, max) && value <= Math.max(min, max);
        },

        rangeIntersect: function(min0, max0, min1, max1) {
          return Math.max(min0, max0) >= Math.min(min1, max1) &&
            Math.min(min0, max0) <= Math.max(min1, max1);
        },

        rectIntersect: function(r0, r1) {
          return utils.rangeIntersect(r0.x, r0.x + r0.width, r1.x, r1.x + r1.width) &&
            utils.rangeIntersect(r0.y, r0.y + r0.height, r1.y, r1.y + r1.height);
        },

        degreesToRads: function(degrees) {
          return degrees / 180 * Math.PI;
        },

        radsToDegrees: function(radians) {
          return radians * 180 / Math.PI;
        },

        randomRange: function(min, max) {
          return min + Math.random() * (max - min);
        },

        randomInt: function(min, max) {
          return min + Math.random() * (max - min + 1);
        },

        getmiddle: function(p0, p1) {
          var x = p0.x,
            x2 = p1.x;
          middlex = (x + x2) / 2;
          var y = p0.y,
            y2 = p1.y;
          middley = (y + y2) / 2;
          pos = [middlex, middley];

          return pos;
        },

        getAngle: function(p0, p1) {
          var deltaX = p1.x - p0.x;
          var deltaY = p1.y - p0.y;
          var rad = Math.atan2(deltaY, deltaX);
          return rad;
        },
        inpercentW: function(size) {
          return (size * W) / 100;
        },

        inpercentH: function(size) {
          return (size * H) / 100;
        },

      }

      // basic setup  :)

      canvas = document.getElementById("canvas2");
      var ctx = canvas.getContext('2d');
      W = canvas.width = window.innerWidth;
      H = canvas.height = window.innerHeight;

      gridX = 5;
      gridY = 5;

      function shape(x, y, texte) {
        this.x = x;
        this.y = y;
        this.size = 72;

        this.text = texte;
        this.placement = [];
        this.vectors = [];

      }

      shape.prototype.getValue = function() {
        console.log("get black pixels position");

        // Draw the shape :^)

        ctx.textAlign = "center";
        ctx.font = "bold " + this.size + "px arial";
        ctx.fillText(this.text, this.x, this.y);


        var idata = ctx.getImageData(0, 0, W, H);

        var buffer32 = new Uint32Array(idata.data.buffer);

        for (var y = 0; y < H; y += gridY) {
          for (var x = 0; x < W; x += gridX) {

            if (buffer32[y * W + x]) {
              this.placement.push(new particle2(x, y));
            }
          }
        }
        ctx.clearRect(0, 0, W, H);

      }
      colors = [
        '#f44336', '#e91e63', '#9c27b0', '#673ab7', '#3f51b5',
        '#2196f3', '#03a9f4', '#00bcd4', '#009688', '#4CAF50',
        '#8BC34A', '#CDDC39', '#FFEB3B', '#FFC107', '#FF9800',
        '#FF5722'
      ];

      function particle2(x, y, type) {
        this.radius = 1.1;
        this.futurRadius = utils.randomInt(radius, radius+3);


        this.rebond = utils.randomInt(1, 5);
        this.x = x;
        this.y = y;

        this.dying = false;

        this.base = [x, y]

        this.vx = 0;
        this.vy = 0;
        this.type = type;
        this.friction = .99;
        this.gravity = gravity;
        this.color = colors[Math.floor(Math.random() * colors.length)];

        this.getSpeed = function() {
          return Math.sqrt(this.vx * this.vx + this.vy * this.vy);
        };

        this.setSpeed = function(speed) {
          var heading = this.getHeading();
          this.vx = Math.cos(heading) * speed;
          this.vy = Math.sin(heading) * speed;
        };

        this.getHeading = function() {
          return Math.atan2(this.vy, this.vx);
        };

        this.setHeading = function(heading) {
          var speed = this.getSpeed();
          this.vx = Math.cos(heading) * speed;
          this.vy = Math.sin(heading) * speed;
        };

        this.angleTo = function(p2) {
          return Math.atan2(p2.y - this.y, p2.x - this.x);

        };

        this.update = function(heading) {
          this.x += this.vx;
          this.y += this.vy;
          this.vy += gravity;

          this.vx *= this.friction;
          this.vy *= this.friction;

          if(this.radius < this.futurRadius && this.dying === false){
            this.radius += duration;
          }else{
            this.dying = true;
          }

          if(this.dying === true){
            this.radius -= duration;


          }


          ctx.beginPath();

          ctx.fillStyle = this.color;

          ctx.arc(this.x, this.y, this.radius, Math.PI * 2, false);
          ctx.fill();
          ctx.closePath();

          if (this.y < 0 || this.radius < 1) {
            this.x = this.base[0];
            this.dying = false;
            this.y = this.base[1];
            this.radius = 1.1;
            this.setSpeed(speed);
        this.futurRadius = utils.randomInt(radius, radius+3);
            this.setHeading(utils.randomInt(utils.degreesToRads(0), utils.degreesToRads(360)));
          }

        };

        this.setSpeed(utils.randomInt(.1, .5));
        this.setHeading(utils.randomInt(utils.degreesToRads(0), utils.degreesToRads(360)));

      }
      // element2 = document.getElementById("2");
      // element3 = document.getElementById("3");
      // element4 = document.getElementById("4");
      // element5 = document.getElementById("5");
      // element6 = document.getElementById("6");

      // fieldvalue = document.getElementById("message");
      gravity = parseFloat(0);//element2.value);
      duration =  parseFloat(0.4);//element3.value);
      resolution = parseFloat(4);//element4.value);
      speed = parseFloat(0.1);//element5.value);
      radius = parseFloat(2);//element5.value);

      var message = new shape(W / 2, H / 2  - 40, '❤小芮');
      var message2 = new shape(W / 2, H / 2  + 30, '生日快乐!');
      message.getValue();
      message2.getValue();
      setTimeout(   update,3000);
      // update();

      // function change() {
      //   ctx.clearRect(0, 0, W, H);

      //   gridX = parseFloat(element4.value);
      //   gridY = parseFloat(element4.value);
      //   message.placement = [];
      //   message.text = fieldvalue.value;
      //   message.getValue();
      // }


      // function changeV() {
      //     gravity = parseFloat(element2.value);
      //     duration =  parseFloat(element3.value);
      //     speed = parseFloat(element5.value);
      //     radius = parseFloat(element6.value);
      // }

      var fps = 100;

      function update() {
        setTimeout(function() {
          ctx.clearRect(0, 0, W, H);


          for (var i = 0; i < message.placement.length; i++) {
            message.placement[i].update();
          }
            for (var i = 0; i < message2.placement.length; i++) {
            message2.placement[i].update();
          }
          requestAnimationFrame(update);
        }, 1000 / fps);
      }

      </script>


    <script>

/*
 * Settings
 */
var settings = {
  particles: {
    length:   800, // maximum amount of particles
    duration:   2, // particle duration in sec
    velocity: 30, // particle velocity in pixels/sec
    effect: -0.4, // play with this for a nice effect
    size:     20, // particle size in pixels
  },
};

/*
 * RequestAnimationFrame polyfill by Erik M?ller
 */
(function(){var b=0;var c=["ms","moz","webkit","o"];for(var a=0;a<c.length&&!window.requestAnimationFrame;++a){window.requestAnimationFrame=window[c[a]+"RequestAnimationFrame"];window.cancelAnimationFrame=window[c[a]+"CancelAnimationFrame"]||window[c[a]+"CancelRequestAnimationFrame"]}if(!window.requestAnimationFrame){window.requestAnimationFrame=function(h,e){var d=new Date().getTime();var f=Math.max(0,16-(d-b));var g=window.setTimeout(function(){h(d+f)},f);b=d+f;return g}}if(!window.cancelAnimationFrame){window.cancelAnimationFrame=function(d){clearTimeout(d)}}}());

/*
 * Point class
 */
var Point = (function() {
  function Point(x, y) {
    this.x = (typeof x !== 'undefined') ? x : 0;
    this.y = (typeof y !== 'undefined') ? y : 0;
  }
  Point.prototype.clone = function() {
    return new Point(this.x, this.y);
  };
  Point.prototype.length = function(length) {
    if (typeof length == 'undefined')
      return Math.sqrt(this.x * this.x + this.y * this.y);
    this.normalize();
    this.x *= length;
    this.y *= length;
    return this;
  };
  Point.prototype.normalize = function() {
    var length = this.length();
    this.x /= length;
    this.y /= length;
    return this;
  };
  return Point;
})();


/*
 * Particle class
 */
var Particle = (function() {
  function Particle() {
    this.position = new Point();
    this.velocity = new Point();
    this.acceleration = new Point();
    this.age = 0;
  }
  Particle.prototype.initialize = function(x, y, dx, dy) {
    this.position.x = x;
    this.position.y = y;
    this.velocity.x = dx;
    this.velocity.y = dy;
    this.acceleration.x = dx * settings.particles.effect;
    this.acceleration.y = dy * settings.particles.effect;
    this.age = 0;
  };
  Particle.prototype.update = function(deltaTime) {
    this.position.x += this.velocity.x * deltaTime;
    this.position.y += this.velocity.y * deltaTime;
    this.velocity.x += this.acceleration.x * deltaTime;
    this.velocity.y += this.acceleration.y * deltaTime;
    this.age += deltaTime;
  };
  Particle.prototype.draw = function(context, image) {
    function ease(t) {
      return (--t) * t * t + 1;
    }
    var size = image.width * ease(this.age / settings.particles.duration);
    context.globalAlpha = 1 - this.age / settings.particles.duration;
    context.drawImage(image, this.position.x - size / 2, this.position.y - size / 2, size, size);
  };
  return Particle;
})();

/*
 * ParticlePool class
 */
var ParticlePool = (function() {
  var particles,
      firstActive = 0,
      firstFree   = 0,
      duration    = settings.particles.duration;

  function ParticlePool(length) {
    // create and populate particle pool
    particles = new Array(length);
    for (var i = 0; i < particles.length; i++)
      particles[i] = new Particle();
  }
  ParticlePool.prototype.add = function(x, y, dx, dy) {
    particles[firstFree].initialize(x, y, dx, dy);

    // handle circular queue
    firstFree++;
    if (firstFree   == particles.length) firstFree   = 0;
    if (firstActive == firstFree       ) firstActive++;
    if (firstActive == particles.length) firstActive = 0;
  };
  ParticlePool.prototype.update = function(deltaTime) {
    var i;

    // update active particles
    if (firstActive < firstFree) {
      for (i = firstActive; i < firstFree; i++)
        particles[i].update(deltaTime);
    }
    if (firstFree < firstActive) {
      for (i = firstActive; i < particles.length; i++)
        particles[i].update(deltaTime);
      for (i = 0; i < firstFree; i++)
        particles[i].update(deltaTime);
    }

    // remove inactive particles
    while (particles[firstActive].age >= duration && firstActive != firstFree) {
      firstActive++;
      if (firstActive == particles.length) firstActive = 0;
    }


  };
  ParticlePool.prototype.draw = function(context, image) {
    // draw active particles
    if (firstActive < firstFree) {
      for (i = firstActive; i < firstFree; i++)
        particles[i].draw(context, image);
    }
    if (firstFree < firstActive) {
      for (i = firstActive; i < particles.length; i++)
        particles[i].draw(context, image);
      for (i = 0; i < firstFree; i++)
        particles[i].draw(context, image);
    }
  };
  return ParticlePool;
})();

/*
 * Putting it all together
 */
(function(canvas) {
  var context = canvas.getContext('2d'),
      particles = new ParticlePool(settings.particles.length),
      particleRate = settings.particles.length / settings.particles.duration, // particles/sec
      time;

  // get point on heart with -PI <= t <= PI
  function pointOnHeart(t) {
    return new Point(
      160 * Math.pow(Math.sin(t), 3),
      130 * Math.cos(t) - 50 * Math.cos(2 * t) - 20 * Math.cos(3 * t) - 10 * Math.cos(4 * t) + 25
    );
  }

  // creating the particle image using a dummy canvas
  var image = (function() {
    var canvas  = document.createElement('canvas'),
        context = canvas.getContext('2d');
    canvas.width  = settings.particles.size;
    canvas.height = settings.particles.size;
    // helper function to create the path
    function to(t) {
      var point = pointOnHeart(t);
      point.x = settings.particles.size / 2 + point.x * settings.particles.size / 350;
      point.y = settings.particles.size / 2 - point.y * settings.particles.size / 350;
      return point;
    }
    // create the path
    context.beginPath();
    var t = -Math.PI;
    var point = to(t);
    context.moveTo(point.x, point.y);
    while (t < Math.PI) {
      t += 0.01; // baby steps!
      point = to(t);
      context.lineTo(point.x, point.y);
    }
    context.closePath();
    // create the fill
    context.fillStyle = '#ea80b0';
    context.fill();
    // create the image
    var image = new Image();
    image.src = canvas.toDataURL();
    return image;
  })();

  // render that thing!
  function render() {
    // next animation frame
    requestAnimationFrame(render);

    // update time
    var newTime   = new Date().getTime() / 1000,
        deltaTime = newTime - (time || newTime);
    time = newTime;

    // clear canvas
    context.clearRect(0, 0, canvas.width, canvas.height);

    // create new particles
    var amount = particleRate * deltaTime;
    var alpha = 1;
    var colorr ;
    for (var i = 0; i < amount; i++) {
      var pos = pointOnHeart(Math.PI - 2 * Math.PI * Math.random());
      var dir = pos.clone().length(settings.particles.velocity);
      particles.add(canvas.width / 2 + pos.x, canvas.height / 2 - pos.y, dir.x, -dir.y);
      if (i%10==0)
        // alpha -= 0.5/amount;
        colorr = "rgb("+~~(255*Math.random())+","+~~(255*Math.random())+","+~~(255*Math.random())+")";
    }

    // update and draw particles
    particles.update(deltaTime);
    particles.draw(context, image);

    // context.font = "bold 40px Microsoft YaHei";
    // context.strokeStyle = "HotPink";
    // context.fillStyle = colorr;//"#FFDAB9"
    // // context.strokeStyle =
    // context.globalAlpha = alpha;
    // context.textAlign = "center";
    // context.fillText("❤小芮", canvas.width / 2 ,canvas.height / 2-30);
    // context.fillText("Happy Birthday!",canvas.width / 2 ,canvas.height / 2+20);
  }

  // handle (re-)sizing of the canvas
  function onResize() {
    canvas.width  = canvas.clientWidth;
    canvas.height = canvas.clientHeight;
  }
  window.onresize = onResize;

  // delay rendering bootstrap
  // setTimeout(function() {
  //   onResize();
  //   render();


  //   for (var i = 0; i < message.placement.length; i++) {
  //     message.placement[i].update();
  //   }

  //   // requestAnimationFrame(update);

  // }, 100);
  setTimeout(update,2000);
  // update();
  function update() {
    setTimeout(function() {
      // ctx.clearRect(0, 0, W, H);
      // for (var i = 0; i < message.placement.length; i++) {
      //   message.placement[i].update();
      // }
      onResize();
      render();
      // context.fillStyle = "rgb("+~~(255*Math.random())+","+~~(255*Math.random())+","+~~(255*Math.random())+")";//'#ea80b0';


      // requestAnimationFrame(update);
    }, 1000);
  }


})(document.getElementById('canvas1'));

var a_idx = 0;
  $(document).ready(function() {
        $("body").on("tap",function(e) {
            var a = new Array("❤乖乖🐱","❤点点🐱");
            var $i = $("<span></span>").text(a[a_idx]);
            a_idx = (a_idx + 1) % a.length;
            var x = e.pageX,
            y = e.pageY;
            $i.css({
                "z-index": 999999999999999999999999999999999999999999999999999999999999999999999,
                "top": y - 20,
                "left": x,
                "position": "absolute",
                "font-weight": "bold",
                "color": "rgb("+~~(255*Math.random())+","+~~(255*Math.random())+","+~~(255*Math.random())+")"
            });
            $("body").append($i);
            $i.animate({
                "top": y - 180,
                "opacity": 0
            },
            1500,
            function() {
                $i.remove();
            });
            return false;
      });
    });


    </script>
<canvas id="tree"></canvas>

<canvas id="flower"></canvas>

<script>

//两个canvas

var tree = document.getElementById("tree");

tree.width = window.innerWidth;

tree.height = window.innerHeight ;

var tCxt = tree.getContext("2d");

var flower = document.getElementById("flower");

flower.width = window.innerWidth;

flower.height = window.innerHeight ;

var cxt = flower.getContext("2d");

var flowerList = [];//樱花列表

var rootTop = 320 ;//树起点

var flowerColor = "rgba(255,192,203,.3)" ;//花色

var flowerColorDeep = "rgba(241,158,194,.5)" ;//花色深

var treeColor2 = "rgba(255,192,203,.5)" ;//树枝颜色

var treeColor = "#FFF" ;//树干颜色

var fallList = [];//飘落樱花列表

var g = 0.01 ;//重力加速度

var gWind = 0.005;//风力加速度

var limitSpeedY = 1;//速度上限

var limitSpeedX = 1 ;//速度上限

cxt.shadowColor= "#FFF" ;

cxt.shadowBlur = 10 ;

function drawTree(x,y,deg,step,type){

    var deg1 = step%2 == 0 ? 0.1 : -0.1 ;

    var x1 = x + Math.cos(deg+deg1) * (step+4) * 0.8 ;//以步长来判断枝干长度 x轴偏移大一些

    var y1 = y + Math.sin(deg+deg1) * (step-1) * 0.8 ;//以步长来判断枝干长度 Y轴压缩一些

    tCxt.beginPath();

    tCxt.lineWidth = step/3;

    tCxt.moveTo(x,y);

    tCxt.lineTo(x1,y1);

    tCxt.strokeStyle = (step > 5 ) ? treeColor : treeColor2 ;//细纸条都换成花的颜色

    tCxt.stroke();

    if(step > 20){//树干相交的位置有间隙，以一个圆填充

        tCxt.fillStyle = treeColor ;

        tCxt.arc(x,y,step/6,0,Math.PI*2);

        tCxt.fill();

    }

    if(step < 3 || (step < 23 && Math.random() > 0.1)){

        //末梢位置 画花瓣

        var color = [flowerColorDeep,flowerColor,flowerColor][Math.round(Math.random()+0.2)] ;

        var r = 2+Math.random()*2

        tCxt.fillStyle = color ;

        tCxt.arc(x1+Math.random()*3,y1+Math.random()*3,r,0,Math.PI)

        tCxt.fill();

        flowerList.push({x:x,y:y,sx:(Math.random()-0.5),sy:0,color:color,r:r,deg:deg});//保存下画樱花的位置

    }

    step -- ;

    if(step > 0){

        drawTree(x1,y1,deg,step,type);

        if(step%3 == 1 && step > 0 && step < 30)

            drawTree(x1,y1,deg+0.2 + 0.3 * Math.random(),Math.round(step/1.13));//右分叉

        if(step%3 == 0 && step > 0 && step < 30)

            drawTree(x1,y1,deg-0.2 - 0.3 * Math.random(),Math.round(step/1.13));//左分叉

    }

}

drawTree(tree.width/2,rootTop,-Math.PI/2,30,1);//执行

var len = flowerList.length ;

function step(){

    if(Math.random() > 0.3)    fallList.push(flowerList[Math.floor(Math.random()*len)]);//随机取出一个，花瓣复制到飘落花瓣的列表中

    cxt.clearRect(0,0,tree.width,tree.height);

    for(var i = 0 ;i < fallList.length ; i ++){

        if(fallList[i].sy < limitSpeedY) fallList[i].sy += g ;

        fallList[i].sx += gWind ;

        fallList[i].x += fallList[i].sx ;

        fallList[i].y += fallList[i].sy ;

        if(fallList[i].y > rootTop){//飘到树根的花瓣移除

            fallList.splice(i,1);

            i -- ;

            continue ;

        }

        cxt.beginPath();

        cxt.fillStyle = fallList[i].color ;

        fallList[i].deg += fallList[i].sx*0.05 ;//跟速度相关的旋转花瓣

        cxt.arc(fallList[i].x,fallList[i].y,fallList[i].r,fallList[i].deg,fallList[i].deg+Math.PI*1.3);

        cxt.fill();

    }

    requestAnimationFrame(step);

}

requestAnimationFrame(step);

</script>

</body>
</html>