Point/Line Manager for my Voronoi diagram generator

voronoi-generator.js

/**=-  VERSION 1.2  -=**/

var canvas, c;
var dots = [ ];
var lines = [ ];
var count = 0;

var m = {
	mousePos : function(canvas, evt) {
		var rect = canvas.getBoundingClientRect();
		return {
			x: evt.clientX - rect.left,
			y: evt.clientY - rect.top
			};
		},
	lines : function(val, index) {
		dots.forEach(function(v, i) {
			if (i > index) {
				lines.push([val, v]);
				}
			});
		},
	dots : function(x, y) {
		console.log("Add at " + x + " x " + y);
		dots.push([x, y]);
		}
	};
	
var g = {
	render : function() {
		g.clear();
		dots.forEach(g.dots);
		dots.forEach(m.lines);
		lines.forEach(g.lines);
	},
	clear : function() {
		c.clearRect(0, 0, canvas.width, canvas.height);
		//canvas.height = canvas.height; // DEPRACATED / ALTERNATE METHOD
		},
	lines : function(val, index) {
		c.moveTo(val[0][0], val[0][1]);
		c.lineTo(val[1][0], val[1][1]);
		c.stroke();
		},
	dots : function(val, index) {
		c.moveTo(val[0], val[1]);
		c.lineTo(val[0]+1, val[1]);
		c.lineTo(val[0]+1, val[1]+1);
		c.lineTo(val[0], val[1]+1);
		c.stroke();
		}
	};

function event_onLoad() {
	canvas = document.getElementById("can");
	c = canvas.getContext("2d");
	c.beginPath();
	//setInterval("g_render()", 80);
	}
	
function canvas_onClick(e) {
	var loc = m.mousePos(canvas, e);
	m.dots(loc.x, loc.y);
	g.render();
	}