const { min, max, sqrt, sin, cos, PI } = Math; var canvas; var W = window.innerWidth, H = window.innerHeight; window.onload = function() { canvas = document.getElementsByTagName('canvas')[0]; canvas.width = W; canvas.height = H; ctx = canvas.getContext('2d'); Ground.init(); Ground.transforms.push(new Pulse(45, 3, 0.4, 1, function(){ Ground.transforms.pop() })); mainloop(); } function mainloop() { window.requestAnimationFrame(mainloop); update(); ctx.fillStyle = 'rgb(64,15,50)'; ctx.fillRect(0, 0, W, H); Ground.mesh.draw(); } function update() { for(let i = 0; i < 60; i++) Ground.pillars[i] = 0.75 + sin(101*i/30*PI + Date.now()/0.8e3)/4; //Ground.updateTransforms(); Ground.updatePillars(); } function Vector(x,y){this.x=x;this.y=y} Vector.prototype.set=function(x,y){this.x=x;this.y=y} Vector.prototype.clone=function(){return new Vector(this.x,this.y)} Vector.prototype.copy=function(vector){this.x=vector.x;this.y=vector.y} function Geometry(path){this.path=new Float32Array(path)} Geometry.prototype.getVerts=function(){let v=[];for(let i=0;i 0 && t < 750/this.speed) this.forma[this.i] = 1-t/1e3*this.h/3*4; else if(t > 0 && t < 1e3/this.speed) this.forma[this.i] = 1-(1-t/1e3)*this.h*4; else if(t > 1e3/this.speed) { this.forma[this.i] = 1; this.atend(); } }

pillar circles