window.Pt = {};(function() {var CanvasSpace, Circle, Color, Const, Curve, DOMSpace, Delaunay, Easing, Form, Grid, GridCascade, Line, Matrix, Noise, Pair, Particle, ParticleEmitter, ParticleField, ParticleSystem, Point, PointSet, QuadTree, Rectangle, SVGForm, SVGSpace, SamplePoints, Space, StripeBound, Timer, Triangle, UI, Util, Vector,

bind = function(fn, me){ return function(){ return fn.apply(me, arguments); }; },

extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },

hasProp = {}.hasOwnProperty,

slice = [].slice;

Const = (function() {

function Const() {}

Const.xy = 'xy';

Const.yz = 'yz';

Const.xz = 'xz';

Const.xyz = 'xyz';

Const.identical = -1;

Const.right = 3;

Const.bottom_right = 4;

Const.bottom = 5;

Const.bottom_left = 6;

Const.left = 7;

Const.top_left = 0;

Const.top = 1;

Const.top_right = 2;

Const.sideLabels = ["identical", "right", "bottom right", "bottom", "bottom left", "left", "top left", "top", "top right"];

Const.epsilon = 0.0001;

Const.pi = Math.PI;

Const.two_pi = 6.283185307179586;

Const.half_pi = 1.5707963267948966;

Const.quarter_pi = 0.7853981633974483;

Const.one_degree = 0.017453292519943295;

Const.rad_to_deg = 57.29577951308232;

Const.deg_to_rad = 0.017453292519943295;

Const.gravity = 9.81;

Const.newton = 0.10197;

Const.gaussian = 0.3989422804014327;

return Const;

})();

this.Const = Const;

Matrix = (function() {

function Matrix() {}

Matrix.rotateAnchor2D = function(radian, anchor, axis) {

var a, cosA, sinA;

if (axis == null) {

axis = Const.xy;

}

a = anchor.get2D(axis);

cosA = Math.cos(radian);

sinA = Math.sin(radian);

return [cosA, sinA, 0, -sinA, cosA, 0, a.x * (1 - cosA) + a.y * sinA, a.y * (1 - cosA) - a.x * sinA, 1];

};

Matrix.reflectAnchor2D = function(line, axis) {

var ang2, cosA, inc, sinA;

if (axis == null) {

axis = Const.xy;

}

inc = line.intercept(axis);

ang2 = Math.atan(inc.slope) * 2;

cosA = Math.cos(ang2);

sinA = Math.sin(ang2);

return [cosA, sinA, 0, sinA, -cosA, 0, -inc.yi * sinA, inc.yi + inc.yi * cosA, 1];

};

Matrix.shearAnchor2D = function(sx, sy, anchor, axis) {

var a, tx, ty;

if (axis == null) {

axis = Const.xy;

}

a = anchor.get2D(axis);

tx = Math.tan(sx);

ty = Math.tan(sy);

return [1, tx, 0, ty, 1, 0, -a.y * ty, -a.x * tx, 1];

};

Matrix.scaleAnchor2D = function(sx, sy, anchor, axis) {

var a;

if (axis == null) {

axis = Const.xy;

}

a = anchor.get2D(axis);

return [sx, 0, 0, 0, sy, 0, -a.x * sx + a.x, -a.y * sy + a.y, 1];

};

Matrix.scale2D = function(x, y) {

return [x, 0, 0, 0, y, 0, 0, 0, 1];

};

Matrix.shear2D = function(x, y) {

return [1, Math.tan(x), 0, Math.tan(y), 1, 0, 0, 0, 1];

};

Matrix.rotate2D = function(cosA, sinA) {

return [cosA, sinA, 0, -sinA, cosA, 0, 0, 0, 1];

};

Matrix.translate2D = function(x, y) {

return [1, 0, 0, 0, 1, 0, x, y, 1];

};

Matrix.transform2D = function(pt, m, axis, byValue) {

var v, x, y;

if (axis == null) {

axis = Const.xy;

}

if (byValue == null) {

byValue = false;

}

v = pt.get2D(axis);

x = v.x * m[0] + v.y * m[3] + m[6];

y = v.x * m[1] + v.y * m[4] + m[7];

v.x = x;

v.y = y;

v = v.get2D(axis, true);

if (!byValue) {

pt.set(v);

return pt;

}

return v;

};

return Matrix;

})();

this.Matrix = Matrix;

Util = (function() {

function Util() {}

Util.toRadian = function(angle) {

return angle * Const.deg_to_rad;

};

Util.toDegree = function(radian) {

return radian * Const.rad_to_deg;

};

Util.toHexColor = function(number) {

var h;

h = Math.floor(number).toString(16);

if (h.length === 1) {

return "0" + h;

} else {

return h;

}

};

Util.toRGBColor = function(hexString, asRGBA, opacity) {

var b, g, r;

if (asRGBA == null) {

asRGBA = false;

}

if (opacity == null) {

opacity = 1;

}

if (hexString[0] === "#") {

hexString = hexString.substr(1);

}

if (hexString.length === 3) {

r = parseInt(hexString[0] + hexString[0], 16);

g = parseInt(hexString[1] + hexString[1], 16);

b = parseInt(hexString[2] + hexString[2], 16);

} else if (hexString.length >= 6) {

r = parseInt(hexString[0] + hexString[1], 16);

g = parseInt(hexString[2] + hexString[3], 16);

b = parseInt(hexString[4] + hexString[5], 16);

} else {

r = 0;

g = 0;

b = 0;

}

if (asRGBA) {

return "rgba(" + r + "," + g + "," + b + "," + opacity + ")";

} else {

return [r, g, b, opacity];

}

};

Util.bound = function(val, max, positive) {

var a, half;

if (positive == null) {

positive = false;

}

a = val % max;

half = max / 2;

if (a > half) {

a -= max;

} else if (a < -half) {

a += max;

}

if (positive) {

if (a < 0) {

return a + max;

} else {

return a;

}

} else {

return a;

}

};

Util.boundAngle = function(ang, positive) {

return Util.bound(ang, 360, positive);

};

Util.boundRadian = function(radian, positive) {

return Util.bound(radian, Const.two_pi, positive);

};

Util.boundingBox = function(points, is3D) {

var aa, len1, maxPt, minPt, p;

if (is3D == null) {

is3D = false;

}

minPt = new Point(Number.POSITIVE_INFINITY, Number.POSITIVE_INFINITY);

maxPt = new Point(Number.NEGATIVE_INFINITY, Number.NEGATIVE_INFINITY);

for (aa = 0, len1 = points.length; aa < len1; aa++) {

p = points[aa];

if (p.x < minPt.x) {

minPt.x = p.x;

}

if (p.y < minPt.y) {

minPt.y = p.y;

}

if (p.x > maxPt.x) {

maxPt.x = p.x;

}

if (p.y > maxPt.y) {

maxPt.y = p.y;

}

if (is3D) {

if (p.z < minPt.z) {

minPt.z = p.z;

}

if (p.z > maxPt.z) {

maxPt.z = p.z;

}

}

}

return new Rectangle(minPt).to(maxPt);

};

Util.lerp = function(a, b, t) {

return (1 - t) * a + t * b;

};

Util.centroid = function(points) {

var aa, c, len1, p;

c = new Vector();

for (aa = 0, len1 = points.length; aa < len1; aa++) {

p = points[aa];

c.add(p);

}

return c.divide(points.length);

};

Util.same = function(a, b, threshold) {

if (threshold == null) {

threshold = Const.epsilon;

}

return Math.abs(a - b) < threshold;

};

Util.within = function(p, a, b) {

return p >= Math.min(a, b) && p <= Math.max(a, b);

};

Util.randomRange = function(a, b) {

var r;

if (b == null) {

b = 0;

}

r = a > b ? a - b : b - a;

return a + Math.random() * r;

};

Util.mixin = function(klass, mix) {

var k, v;

for (k in mix) {

v = mix[k];

if (mix.hasOwnProperty(k)) {

klass.prototype[k] = mix[k];

}

}

return klass;

};

Util.extend = function(klass, parent) {

klass.prototype = Object.create(parent.prototype);

klass.prototype.constructor = klass;

return klass;

};

Util.clonePoints = function(array) {

var aa, len1, p, results;

results = [];

for (aa = 0, len1 = array.length; aa < len1; aa++) {

p = array[aa];

results.push(p.clone());

}

return results;

};

Util.contextRotateOrigin = function(ctx, bound, radian, origin, mask) {

var msz, size;

if (origin == null) {

origin = false;

}

size = bound.size();

if (!origin) {

origin = size.$multiply(0.5);

origin.add(bound);

}

if (mask) {

msz = mask.size();

Form.rect(ctx, mask);

ctx.clip();

}

ctx.translate(origin.x, origin.y);

ctx.rotate(radian);

return ctx.translate(-origin.x, -origin.y);

};

Util.sinCosTable = function() {

var aa, cos, i, sin;

cos = [];

sin = [];

for (i = aa = 0; aa <= 360; i = aa += 1) {

cos[i] = Math.cos(i * Math.PI / 180);

sin[i] = Math.sin(i * Math.PI / 180);

}

return {

sin: sin,

cos: cos

};

};

Util.chance = function(p) {

return Math.random() < p;

};

Util.gaussian = function(x, mean, sigma) {

if (mean == null) {

mean = 0;

}

if (sigma == null) {

sigma = 1;

}

x = (x - mean) / sigma;

return Const.gaussian * Math.exp(-0.5 * x * x) / sigma;

};

return Util;

})();

this.Util = Util;

Timer = (function() {

function Timer(d) {

if (d == null) {

d = 1000;

}

this.duration = d;

this._time = 0;

this._ease = function(t, b, c, d) {

return t / d;

};

this._intervalID = -1;

}

Timer.prototype.start = function(reset) {

var diff;

diff = Math.min(Date.now() - this._time, this.duration);

if (reset || diff >= this.duration) {

return this._time = Date.now();

}

};

Timer.prototype.setEasing = function(ease) {

return this._ease = ease;

};

Timer.prototype.check = function() {

var diff;

diff = Math.min(Date.now() - this._time, this.duration);

return this._ease(diff, 0, 1, this.duration);

};

Timer.prototype.track = function(callback) {

var me;

clearInterval(this._intervalID);

this.start(true);

me = this;

this._intervalID = setInterval((function() {

var t;

t = me.check();

callback(t);

if (t >= 1) {

return clearInterval(me._intervalID);

}

}), 25);

return this._intervalID;

};

return Timer;

})();

this.Timer = Timer;

Space = (function() {

function Space(id) {

if (id == null) {

id = 'space';

}

this.id = id;

this.size = new Vector();

this.center = new Vector();

this._timePrev = 0;

this._timeDiff = 0;

this._timeEnd = -1;

this.items = {};

this._animID = -1;

this._animCount = 0;

this._animPause = false;

this._refresh = true;

}

Space.prototype.refresh = function(b) {

this._refresh = b;

return this;

};

Space.prototype.render = function(context) {

return this;

};

Space.prototype.resize = function(w, h) {};

Space.prototype.clear = function() {};

Space.prototype.add = function(item) {

var k;

if ((item.animate != null) && typeof item.animate === 'function') {

k = this._animCount++;

this.items[k] = item;

item.animateID = k;

if (item.onSpaceResize != null) {

item.onSpaceResize(this.size.x, this.size.y);

}

} else {

throw "a player object for Space.add must define animate()";

}

return this;

};

Space.prototype.remove = function(item) {

delete this.items[item.animateID];

return this;

};

Space.prototype.removeAll = function() {

this.items = {};

return this;

};

Space.prototype.play = function(time) {

var err;

if (time == null) {

time = 0;

}

this._animID = requestAnimationFrame((function(_this) {

return function(t) {

return _this.play(t);

};

})(this));

if (this._animPause) {

return;

}

this._timeDiff = time - this._timePrev;

try {

this._playItems(time);

} catch (_error) {

err = _error;

cancelAnimationFrame(this._animID);

console.error(err.stack);

throw err;

}

this._timePrev = time;

return this;

};

Space.prototype._playItems = function(time) {

var k, ref, v;

if (this._refresh) {

this.clear();

}

ref = this.items;

for (k in ref) {

v = ref[k];

v.animate(time, this._timeDiff, this.ctx);

}

if (this._timeEnd >= 0 && time > this._timeEnd) {

cancelAnimationFrame(this._animID);

}

return this;

};

Space.prototype.pause = function(toggle) {

if (toggle == null) {

toggle = false;

}

this._animPause = toggle ? !this._animPause : true;

return this;

};

Space.prototype.resume = function() {

this._animPause = false;

return this;

};

Space.prototype.stop = function(t) {

if (t == null) {

t = 0;

}

this._timeEnd = t;

return this;

};

Space.prototype.playTime = function(duration) {

if (duration == null) {

duration = 5000;

}

this.play();

return this.stop(duration);

};

Space.prototype.bindCanvas = function(evt, callback) {

if (this.space.addEventListener) {

return this.space.addEventListener(evt, callback);

}

};

Space.prototype.bindMouse = function(_bind) {

if (_bind == null) {

_bind = true;

}

if (this.space.addEventListener && this.space.removeEventListener) {

if (_bind) {

this.space.addEventListener("mousedown", this._mouseDown.bind(this));

this.space.addEventListener("mouseup", this._mouseUp.bind(this));

this.space.addEventListener("mouseover", this._mouseOver.bind(this));

this.space.addEventListener("mouseout", this._mouseOut.bind(this));

return this.space.addEventListener("mousemove", this._mouseMove.bind(this));

} else {

this.space.removeEventListener("mousedown", this._mouseDown.bind(this));

this.space.removeEventListener("mouseup", this._mouseUp.bind(this));

this.space.removeEventListener("mouseover", this._mouseOver.bind(this));

this.space.removeEventListener("mouseout", this._mouseOut.bind(this));

return this.space.removeEventListener("mousemove", this._mouseMove.bind(this));

}

}

};

Space.prototype.bindTouch = function(_bind) {

if (_bind == null) {

_bind = true;

}

if (this.space.addEventListener && this.space.removeEventListener) {

if (_bind) {

this.space.addEventListener("touchstart", this._mouseDown.bind(this));

this.space.addEventListener("touchend", this._mouseUp.bind(this));

this.space.addEventListener("touchmove", ((function(_this) {

return function(evt) {

evt.preventDefault();

return _this._mouseMove(evt);

};

})(this)));

return this.space.addEventListener("touchcancel", this._mouseOut.bind(this));

} else {

this.space.removeEventListener("touchstart", this._mouseDown.bind(this));

this.space.removeEventListener("touchend", this._mouseUp.bind(this));

this.space.removeEventListener("touchmove", this._mouseMove.bind(this));

return this.space.removeEventListener("touchcancel", this._mouseOut.bind(this));

}

}

};

Space.prototype.touchesToPoints = function(evt, which) {

var t;

if (which == null) {

which = "touches";

}

if (!evt || !evt[which]) {

return [];

}

return (function() {

var aa, len1, ref, results;

ref = evt[which];

results = [];

for (aa = 0, len1 = ref.length; aa < len1; aa++) {

t = ref[aa];

results.push(new Vector(t.pageX - this.boundRect.left, t.pageY - this.boundRect.top));

}

return results;

}).call(this);

};

Space.prototype._mouseAction = function(type, evt) {

var _c, k, px, py, ref, ref1, results, results1, v;

if (evt.touches || evt.changedTouches) {

ref = this.items;

results = [];

for (k in ref) {

v = ref[k];

if (v.onTouchAction != null) {

_c = evt.changedTouches && evt.changedTouches.length > 0;

px = _c ? evt.changedTouches.item(0).pageX : 0;

py = _c ? evt.changedTouches.item(0).pageY : 0;

results.push(v.onTouchAction(type, px, py, evt));

} else {

results.push(void 0);

}

}

return results;

} else {

ref1 = this.items;

results1 = [];

for (k in ref1) {

v = ref1[k];

if (v.onMouseAction != null) {

px = evt.offsetX || evt.layerX;

py = evt.offsetY || evt.layerY;

results1.push(v.onMouseAction(type, px, py, evt));

} else {

results1.push(void 0);

}

}

return results1;

}

};

Space.prototype._mouseDown = function(evt) {

this._mouseAction("down", evt);

return this._mdown = true;

};

Space.prototype._mouseUp = function(evt) {

this._mouseAction("up", evt);

if (this._mdrag) {

this._mouseAction("drop", evt);

}

this._mdown = false;

return this._mdrag = false;

};

Space.prototype._mouseMove = function(evt) {

this._mouseAction("move", evt);

if (this._mdown) {

this._mdrag = true;

return this._mouseAction("drag", evt);

}

};

Space.prototype._mouseOver = function(evt) {

return this._mouseAction("over", evt);

};

Space.prototype._mouseOut = function(evt) {

this._mouseAction("out", evt);

if (this._mdrag) {

this._mouseAction("drop", evt);

}

return this._mdrag = false;

};

return Space;

})();

this.Space = Space;

CanvasSpace = (function(superClass) {

extend(CanvasSpace, superClass);

function CanvasSpace(id, bgcolor, context) {

if (id == null) {

id = 'pt_space';

}

if (bgcolor == null) {

bgcolor = false;

}

if (context == null) {

context = '2d';

}

this._resizeHandler = bind(this._resizeHandler, this);

CanvasSpace.__super__.constructor.apply(this, arguments);

this.space = document.querySelector("#" + this.id);

this.bound = null;

this.boundRect = {

top: 0,

left: 0,

width: 0,

height: 0

};

this.pixelScale = 1;

this.appended = true;

if (!this.space) {

this.space = document.createElement("canvas");

this.space.setAttribute("id", this.id);

this.appended = false;

}

this._mdown = false;

this._mdrag = false;

this.bgcolor = bgcolor;

this.ctx = this.space.getContext(context);

}

CanvasSpace.prototype.display = function(parent_id, readyCallback, devicePixelSupport) {

var r1, r2;

if (parent_id == null) {

parent_id = "#pt";

}

if (devicePixelSupport == null) {

devicePixelSupport = true;

}

if (!this.appended) {

this.bound = document.querySelector(parent_id);

this.boundRect = this.bound.getBoundingClientRect();

this.pixelScale = 1;

if (devicePixelSupport) {

r1 = window.devicePixelRatio || 1;

r2 = this.ctx.webkitBackingStorePixelRatio || this.ctx.mozBackingStorePixelRatio || this.ctx.msBackingStorePixelRatio || this.ctx.oBackingStorePixelRatio || this.ctx.backingStorePixelRatio || 1;

this.pixelScale = r1 / r2;

}

if (this.bound) {

this.resize(this.boundRect.width, this.boundRect.height);

this.autoResize(true);

if (this.space.parentNode !== this.bound) {

this.bound.appendChild(this.space);

}

this.appended = true;

setTimeout((function() {

this.space.dispatchEvent(new Event('ready'));

if (readyCallback) {

return readyCallback(this.boundRect.width, this.boundRect.height, this.space);

}

}).bind(this));

} else {

throw 'Cannot add canvas to element ' + parent_id;

}

}

return this;

};

CanvasSpace.prototype._resizeHandler = function(evt) {

this.boundRect = this.bound.getBoundingClientRect();

return this.resize(this.boundRect.width, this.boundRect.height, evt);

};

CanvasSpace.prototype.autoResize = function(auto) {

if (auto == null) {

auto = true;

}

if (auto) {

window.addEventListener('resize', this._resizeHandler);

} else {

window.removeEventListener('resize', this._resizeHandler);

}

return this;

};

CanvasSpace.prototype.resize = function(w, h, evt) {

var k, p, ref;

w = Math.floor(w);

h = Math.floor(h);

this.size.set(w, h);

this.center = new Vector(w / 2, h / 2);

this.boundRect.width = w;

this.boundRect.height = h;

this.space.width = w * this.pixelScale;

this.space.height = h * this.pixelScale;

this.space.style.width = w + "px";

this.space.style.height = h + "px";

if (this.pixelScale !== 1) {

this.ctx.scale(this.pixelScale, this.pixelScale);

}

ref = this.items;

for (k in ref) {

p = ref[k];

if (p.onSpaceResize != null) {

p.onSpaceResize(w, h, evt);

}

}

this.render(this.ctx);

return this;

};

CanvasSpace.prototype.clear = function(bg) {

var lastColor;

if (bg) {

this.bgcolor = bg;

}

lastColor = this.ctx.fillStyle;

if (this.bgcolor) {

this.ctx.fillStyle = this.bgcolor;

this.ctx.fillRect(0, 0, this.size.x, this.size.y);

} else {

this.ctx.clearRect(0, 0, this.size.x, this.size.y);

}

this.ctx.fillStyle = lastColor;

return this;

};

CanvasSpace.prototype.animate = function(time) {

var k, ref, v;

this.ctx.save();

if (this._refresh) {

this.clear();

}

ref = this.items;

for (k in ref) {

v = ref[k];

v.animate(time, this._timeDiff, this.ctx);

}

if (this._timeEnd >= 0 && time > this._timeEnd) {

cancelAnimationFrame(this._animID);

}

this.ctx.restore();

return this;

};

return CanvasSpace;

})(Space);

this.CanvasSpace = CanvasSpace;

DOMSpace = (function(superClass) {

extend(DOMSpace, superClass);

function DOMSpace(id, bgcolor, context) {

if (id == null) {

id = 'pt_space';

}

if (bgcolor == null) {

bgcolor = false;

}

if (context == null) {

context = 'html';

}

this._resizeHandler = bind(this._resizeHandler, this);

DOMSpace.__super__.constructor.apply(this, arguments);

this.space = document.querySelector("#" + this.id);

this.css = {

width: "100%",

height: "100%"

};

this.bound = null;

this.boundRect = {

top: 0,

left: 0,

width: 0,

height: 0

};

this.appended = true;

if (!this.space) {

this._createSpaceElement();

}

this._mdown = false;

this._mdrag = false;

this.bgcolor = bgcolor;

this.ctx = {};

}

DOMSpace.prototype._createSpaceElement = function() {

this.space = document.createElement("div");

this.space.setAttribute("id", this.id);

return this.appended = false;

};

DOMSpace.prototype.setCSS = function(key, val, isPx) {

if (isPx == null) {

isPx = false;

}

this.css[key] = (isPx ? val + "px" : val);

return this;

};

DOMSpace.prototype.updateCSS = function() {

var k, ref, results, v;

ref = this.css;

results = [];

for (k in ref) {

v = ref[k];

results.push(this.space.style[k] = v);

}

return results;

};

DOMSpace.prototype.display = function(parent_id, readyCallback) {

if (parent_id == null) {

parent_id = "#pt";

}

if (!this.appended) {

this.bound = document.querySelector(parent_id);

this.boundRect = this.bound.getBoundingClientRect();

if (this.bound) {

this.resize(this.boundRect.width, this.boundRect.height);

this.autoResize(true);

if (this.space.parentNode !== this.bound) {

this.bound.appendChild(this.space);

}

this.appended = true;

setTimeout((function() {

this.space.dispatchEvent(new Event('ready'));

if (readyCallback) {

return readyCallback(this.boundRect.width, this.boundRect.height, this.space);

}

}).bind(this));

} else {

throw 'Cannot add canvas to element ' + parent_id;

}

}

return this;

};

DOMSpace.prototype._resizeHandler = function(evt) {

this.boundRect = this.bound.getBoundingClientRect();

return this.resize(this.boundRect.width, this.boundRect.height, evt);

};

DOMSpace.prototype.autoResize = function(auto) {

if (auto == null) {

auto = true;

}

if (auto) {

window.addEventListener('resize', this._resizeHandler);

} else {

window.removeEventListener('resize', this._resizeHandler);

}

return this;

};

DOMSpace.prototype.resize = function(w, h, evt) {

var k, p, ref;

this.size.set(w, h);

this.center = new Vector(w / 2, h / 2);

ref = this.items;

for (k in ref) {

p = ref[k];

if (p.onSpaceResize != null) {

p.onSpaceResize(w, h, evt);

}

}

return this;

};

DOMSpace.prototype.clear = function() {

return this.space.innerHML = "";

};

DOMSpace.prototype.animate = function(time) {

var k, ref, v;

ref = this.items;

for (k in ref) {

v = ref[k];

v.animate(time, this._timeDiff, this.ctx);

}

if (this._timeEnd >= 0 && time > this._timeEnd) {

cancelAnimationFrame(this._animID);