엄지월드

HTML5 Canvas Tutorial for Beginners - Ep. 3 var canvas = document.querySelector('canvas') ; canvas.width = window.innerWidth; canvas.height = window.innerHeight; var c = canvas.getContext('2d'); function Circle(x, y, dx, dy, radius){ this.x = x; this.y = y; this.dx = dx; this.dy = dy; this.radius = radius; this.draw = function(){ c.beginPath(); c.arc(this.x, this.y, this.radius, 0, Math.PI * 2, ..