processing实现canvas樱花树生长开花动画效果代码-html代码-BFW代码库

processing实现canvas樱花树生长开花动画效果代码

代码语言：html

所属分类：动画

代码描述：processing实现canvas樱花树生长开花动画效果代码

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">

  
  
<style>
* {
  margin: 0;
  box-sizing: border-box;
  overflow: hidden;
}

body {
  background: #e6e2ca;
  width: 100%;
  height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}
body canvas {
  box-shadow: 0.2em 0.2em 2em #0008;
  border: none;
  outline: none;
}
</style>


  
  
</head>

<body translate="no">
  <canvas id="canvas"></canvas>
<script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/processing.1.4.8.js"></script> 

<script>
var sketchProc = function(processingInstance) {
  with (processingInstance) {
    size(600, 600); 
    frameRate(60);    
    smooth();
    
textAlign(CENTER, CENTER);
textSize(25);
strokeCap(PROJECT);

//used for controlling the animation
var lenBranches = 0, lenLeaves = 0, lenFlowers = 0;

//define the tree object/properties
var tree = {
    x: 300,
    y: 500,
    len: 100,
    depth: 6,
    angle: -90,
    branches: [],
    leaves: [],
    flowers: [],
    colors: {
        from: color(59, 39, 8),
        to: color(145, 108, 49)
    }
};

//the recursive function (will be called from within itself)
var addBranch = function(x, y, depth, angle, len) {
    
    //if the depth is zero then end the recursion
    if(depth === 0) {
        return;
    }
    
    //calculate the end points of the branch
    var x2 = x + cos(angle*Math.PI/180) * len;
    var y2 = y + sin(angle*Math.PI/180) * len;
    
    //add the new branch to the tree
    tree.branches.push({
        x1: x,
        y1: y,
        x2: x2,
        y2: y2,
        depth: depth,
        color: lerpColor(tree.colors.from, tree.colors.to, map(depth, tree.depth, 1, 0, 1))
    });
    
    //add some random leaves to the branches
    if(depth > 0 && depth < tree.depth - 3 && random() < 0.3) {
        for(var i = 0; i < 2; i++) {
            var l = len * random(0.1, 0.9);
            var tx = x + cos(angle*Math.PI/180) * l;
            var ty = y + sin(angle*Math.PI/180) * l;
        
            tree.leaves.push({
                x: tx,
                y: ty,
                diameter: random(5, 10),
                color: color(random(80, 100), random(150, 180), random(90, 110)),
                angle: random(angle - 60, angle + 60)
            });
        }
    }
    
    //add some random flowers to the end of the branches
    if(depth === 1 && random() < 0.5 || depth === 2 && random() < 0.3) {
        tree.flowers.push({
            x: x2,
            y: y2,
            diameter: depth === 1 ? random(15, 25) : random(10, 15),
            color: color(random(200, 255), random(60, 100), random(90, 120)),
            angle: angle,
            gap: random(0, 90)
        });
    }
    
    //reduce the depth (extremely important to end your recursion)
    depth--;
    
    var l = len * (random(0.6, 0.8));
    var x3 = x + cos(angle*Math.PI/180) * l;
    var y3 = y +.........完整代码请登录后点击上方下载按钮下载查看