/*
*/

window.ctx = window.w = window.h = null;

var map = new function(){
	var base = this
	base.el = document.querySelector("#map")
	
	if (! base.el) return
	
	base.dimensions = new vec2(window.innerWidth, window.innerHeight)
	base.bounds = new vec2(window.innerWidth, window.innerHeight)
	base.center = new vec2(0,0)
	
	base.sides = function(){
		var sides = base.bounds.clone().div(2).div(base.zoom)
		return new Rect( base.center.a - sides.a, -base.center.b - sides.b,
										 base.center.a + sides.a, -base.center.b + sides.b )
	}

	base.zoom = 1/8
	base.zoom_exponent = -3
	base.set_zoom = function (n) {
		base.zoom_exponent = n
		base.zoom = pow(2, base.zoom_exponent)
	}

	var canvas = document.createElement("canvas")
	var ctx = window.ctx = canvas.getContext("2d")
	var w = window.w = canvas.width = base.dimensions.a
	var h = window.h = canvas.height = base.dimensions.b
	document.querySelector("#map").appendChild(canvas)

	base.update = function(){
		base.draw.animate()
	}
	
	base.toggle = function(){
		$(base.el).toggle()
	}

}