[Rise]

allcoma, элементарно

CelestialBody.prototype.render = function(context) {
	// ...
	
	this.path = this.path || [];
	this.path.push({ x: this.position.x, y: this.position.y });
	
	context.beginPath();
	context.moveTo(this.path[0].x, this.path[0].y);
	for (var i = 1; i < this.path.length; i++) {
		context.lineTo(this.path[i].x, this.path[i].y);
	}
	context.strokeStyle = this.fillStyle;
	context.stroke();
};