terra is a super customizable library for creating and analyzing biological simulations. It's open-source and licenced under MIT.
+terra is a super customizable library for creating and analyzing biological simulations. It's open-source and licensed under MIT.
Usage
@@ -66,7 +66,7 @@ window.terra;Creating the environment
To run a simulation, we'll need to create an environment. Let's make a 25x25 grid, populate 10% of the space with our lonely purple creature, and fill the rest with simple plants.
-var ex1 = new terra.Terrarium(25, 25, 'ex1');
+ var ex1 = new terra.Terrarium(25, 25, {id: 'ex1'});
ex1.grid = ex1.makeGridWithDistribution([['secondCreature', 10], ['simplePlant', 90]]);
Running a simulation
@@ -79,7 +79,10 @@ ex1.grid = ex1.makeGridWithDistribution([['secondCreature', 10], ['simplePlant',
Examples
Conway's Game of Life ?
- var gameOfLife = new terra.Terrarium(25, 25);
+ var gameOfLife = new terra.Terrarium(25, 25, {
+ trails: 0.9,
+ background: [22, 22, 22]
+});
terra.registerCA({
type: 'GoL',
@@ -342,9 +345,13 @@ elementary.animate();
Terrarium
Terrariums are where the action happens. They're initialized with the following constructor:
- //new terra.Terrarium(width, height, id, cellSize, insertAfter);
+ //new terra.Terrarium(width, height, {options});
//example: create a 4x4 terrarium called #myTerrarium after element #bugStory
-var t = new terra.Terrarium(4, 4, 'myTerrarium', 15, document.getElementById('bugStory');
+var t = new terra.Terrarium(4, 4, {
+ id: 'myTerrarium',
+ cellSize: 15,
+ insertAfter: document.getElementById('bugStory')
+});
Required
-
@@ -376,6 +383,23 @@ var t = new terra.Terrarium(4, 4, 'myTerrarium', 15, document.getElementById('bu
- Default: canvas is appended to
document.body
+
+ float trails
+ Allows for "trails", which visualize system history. A value of 1 shows all past state; trails fade faster as we approach 0.
+
+ - Range: [0, 1]
+ - Default: canvas is appended to
document.body
+ - Dependencies: "background" option is required if trails is set.
+
+
+
+ int [3] background
+ RGB components of the canvas' background.
+
+ - Range: [0, 255]
+ - Default: transparent
+
+
Once initialized, terrariums have a few exposed methods. Using our terrarium t that we just created:
diff --git a/terra.demo.min.js b/terra.demo.min.js
index 5f7e660..c46f468 100755
--- a/terra.demo.min.js
+++ b/terra.demo.min.js
@@ -1,1212 +1,2 @@
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-})(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-ga('create', 'UA-49939229-4', 'auto');
-ga('send', 'pageview');
-(function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o= height && !isSticky) {
- document.body.className = 'sticky';
- topTerrarium.stop();
- isSticky = true;
- } else if (scrollTop < height && isSticky) {
- document.body.className = '';
- topTerrarium.animate();
- isSticky = false;
- }
-};
-
-function addPlayButton (terrarium, steps) {
- var canvas = terrarium.canvas;
- var parent = canvas.parentNode;
- var sibling = canvas.nextElementSibling;
- var wrapper = document.createElement('div');
- var playButton = document.createElement('button');
- var stopButton = document.createElement('button');
- playButton.className = 'icon-play';
- stopButton.className = 'icon-stop';
- wrapper.className = 'canvasWrapper stopped';
- wrapper.appendChild(canvas);
- wrapper.appendChild(playButton);
- wrapper.appendChild(stopButton);
- if (sibling) parent.insertBefore(wrapper, sibling);
- else parent.appendChild(wrapper);
-
- playButton.addEventListener('click', function () {
- wrapper.className = 'canvasWrapper playing'
- terrarium.animate(steps, function () { stopButton.click(); });
- }, false);
-
- stopButton.addEventListener('click', function () {
- wrapper.className = 'canvasWrapper stopped'
- terrarium.stop();
- terrarium.grid = terrarium.distributed ?
- terrarium.makeGridWithDistribution(terrarium.initial) :
- terrarium.makeGrid(terrarium.initial);
- }, false);
-};
-
-var scroller1 = document.getElementById('scroller1');
-var header = document.getElementById('header');
-var golExample = document.getElementById('gol');
-var cyclicExample = document.getElementById('cyclic');
-var bbExample = document.getElementById('brutesAndBullies');
-var elementaryExample = document.getElementById('rule146');
-var ex1End = document.getElementById('ex1End');
-
-var height = window.innerHeight;
-var width = document.documentElement.clientWidth;
-var terHeight = Math.ceil(height / 20);
-var terWidth = Math.ceil(width / 20);
-
-var isSticky = false;
-
-var topTerrarium = new Terrarium(terWidth, terHeight, 'topTerrarium', 20, header);
-topTerrarium.canvas.style.top = topTerrarium.canvas.style.left = '50%';
-topTerrarium.canvas.style.marginTop = terHeight * 20 / -2 + 'px';
-topTerrarium.canvas.style.marginLeft = terWidth * 20 / -2 + 'px';
-topTerrarium.initial = [['plant', 50], ['brute', 5], ['bully', 10]];
-topTerrarium.distributed = true;
-
-var ex1Terrarium = new Terrarium(25, 25, 'ex1', 12, ex1End);
-ex1Terrarium.initial = [['secondCreature', 10], ['simplePlant', 90]];
-ex1Terrarium.distributed = true;
-ex1Terrarium.grid = ex1Terrarium.makeGridWithDistribution(ex1Terrarium.initial);
-
-var golTerrarium = new Terrarium(25, 25, 'golTerrarium', 12, golExample);
-golTerrarium.initial = 'GoL';
-golTerrarium.distributed = false;
-golTerrarium.grid = golTerrarium.makeGrid(golTerrarium.initial);
-
-var cyclicTerrarium = new Terrarium(100, 100, 'cyclicTerrarium', 3, cyclicExample);
-cyclicTerrarium.initial = 'cyclic';
-cyclicTerrarium.distributed = false;
-cyclicTerrarium.grid = cyclicTerrarium.makeGrid(cyclicTerrarium.initial);
-
-var elementaryTerrarium = new Terrarium(150, 150, 'elementaryTerrarium', 2, elementaryExample);
-elementaryTerrarium.initial = 'elementary';
-elementaryTerrarium.distributed = false;
-elementaryTerrarium.grid = elementaryTerrarium.makeGrid(elementaryTerrarium.initial);
-
-var bbTerrarium = new Terrarium(50, 50, 'bbTerrarium', 6, bbExample);
-bbTerrarium.initial = topTerrarium.initial;
-bbTerrarium.distributed = true;
-bbTerrarium.grid = bbTerrarium.makeGridWithDistribution(bbTerrarium.initial);
-
-topTerrarium.draw();
-ex1Terrarium.draw();
-golTerrarium.draw();
-cyclicTerrarium.draw();
-bbTerrarium.draw();
-
-(function endless () {
- topTerrarium.grid = topTerrarium.makeGridWithDistribution(topTerrarium.initial);
- topTerrarium.animate(function() {
- setTimeout(endless, 400);
- });
-})();
-addPlayButton(ex1Terrarium, 300);
-addPlayButton(golTerrarium, 300);
-addPlayButton(cyclicTerrarium);
-addPlayButton(elementaryTerrarium, 150);
-addPlayButton(bbTerrarium);
-
-smoothScroll.init({offset: 60});
-
-document.addEventListener('scroll', checkScroll);
-scroller1.addEventListener('click', function () { topTerrarium.stop(); }, false);
-
-},{"../../app/terrarium.js":5,"./bugs.js":8}],2:[function(require,module,exports){
-var _ = require('./util.js');
-
-// abstract factory that adds a superclass of baseCreature
-var factory = (function () {
- function baseCreature() {
- this.age = -1;
- }
- function baseCA() {
- this.age = -1;
- }
-
- baseCreature.prototype.initialEnergy = 50;
- baseCreature.prototype.maxEnergy = 100;
- baseCreature.prototype.efficiency = 0.7;
- baseCreature.prototype.size = 50;
- baseCreature.prototype.actionRadius = 1;
- baseCreature.prototype.sustainability = 2;
- // used as percentages of maxEnergy
- baseCreature.prototype.reproduceLv = 0.70;
- baseCreature.prototype.moveLv = 0;
-
- baseCreature.prototype.boundEnergy = function() {
- if (this.energy > this.maxEnergy)
- this.energy = this.maxEnergy;
- };
-
- baseCreature.prototype.isDead = function() {
- return this.energy <= 0;
- };
-
- baseCreature.prototype.reproduce = function (neighbors) {
- var spots = _.filter(neighbors, function (spot) {
- return !spot.creature;
- });
-
- if (spots.length) {
- var step = spots[_.random(spots.length - 1)];
- var coords = step.coords;
- var creature = factory.make(this.type);
-
- var successFn = (function () {
- this.energy -= this.initialEnergy;
- return true;
- }).bind(this);
- var failureFn = this.wait;
-
- return {
- x: coords.x,
- y: coords.y,
- creature: creature,
- successFn: successFn,
- failureFn: failureFn
- };
- } else return false;
- };
-
- baseCreature.prototype.move = function (neighbors) {
- var creature = this;
-
- // first, look for creatures to eat
- var spots = _.filter(neighbors, (function (spot) {
- return spot.creature.size < this.size;
- }).bind(this));
-
- // if there's not enough food, try to move
- if (spots.length < this.sustainability) {
- spots = _.filter(neighbors, function (spot) {
- return !spot.creature;
- });
- }
-
- // if we've got a spot to move to...
- if (spots.length) {
- // ...pick one
- var step = spots[_.random(spots.length - 1)];
-
- var coords = step.coords;
-
- var successFn = (function () {
- var foodEnergy = step.creature.energy * this.efficiency;
- // add foodEnergy if eating, subtract 10 if moving
- this.energy = this.energy + (foodEnergy || -10);
- // clear the original location
- return false;
- }).bind(this);
-
- return {
- x: coords.x,
- y: coords.y,
- creature: creature,
- successFn: successFn
- };
- } else return false;
- };
-
- baseCreature.prototype.wait = function () {
- this.energy -= 5;
- return true;
- };
-
- baseCreature.prototype.process = function (neighbors, x, y) {
- var step = {};
- var maxEnergy = this.maxEnergy;
-
- if (this.energy > maxEnergy * this.reproduceLv && this.reproduce) {
- step = this.reproduce(neighbors);
- } else if (this.energy > maxEnergy * this.moveLv && this.move) {
- step = this.move(neighbors);
- }
-
- var creature = step.creature;
-
- if (creature) {
- creature.successFn = step.successFn || creature.wait;
- creature.failureFn = step.failureFn || creature.wait;
-
- return {
- x: step.x,
- y: step.y,
- creature: creature,
- observed: true
- };
- } else return this.energy !== this.maxEnergy;
- };
-
- baseCA.prototype.boundEnergy = function () {};
- baseCA.prototype.isDead = function () { return false; };
- baseCA.prototype.process = function (neighbors, x, y) {};
- baseCA.prototype.wait = function () {};
-
- // Storage for our creature types
- var types = {};
-
- return {
- make: function (type, options) {
- var Creature = types[type];
- return (Creature ? new Creature(options) : false);
- },
-
- registerCreature: function (options, init) {
- // required attributes
- var type = options.type;
- // only register classes that fulfill the creature contract
- if (typeof type === 'string' && typeof types[type] === 'undefined') {
- // set the constructor, including init if it's defined
- if (typeof init === 'function') {
- types[type] = function () {
- this.energy = this.initialEnergy;
- init.call(this);
- };
- } else {
- types[type] = function () {
- this.energy = this.initialEnergy;
- };
- }
-
- var color = options.color;
- // set the color randomly if none is provided
- if (typeof color !== 'object' || color.length !== 3) {
- options.color = [_.random(255), _.random(255), _.random(255)];
- }
-
- types[type].prototype = new baseCreature();
- types[type].prototype.constructor = types[type];
-
- _.each(options, function(value, key) {
- types[type].prototype[key] = value;
- });
-
- types[type].prototype.successFn = types[type].wait;
- types[type].prototype.failureFn = types[type].wait;
- types[type].prototype.energy = options.initialEnergy;
-
- return true;
- } else return false;
- },
-
- registerCA: function (options, init) {
- // required attributes
- var type = options.type;
- // only register classes that fulfill the creature contract
- if (typeof type === 'string' && typeof types[type] === 'undefined') {
- // set the constructor, including init if it's defined
- types[type] = typeof init === 'function' ?
- function () { init.call(this); } :
- function () {};
-
- var color = options.color;
- // set the color randomly if none is provided
- if (typeof color !== 'object' || color.length !== 3) {
- options.color = [_.random(255), _.random(255), _.random(255)];
- }
-
- types[type].prototype = new baseCA();
- types[type].prototype.constructor = types[type];
-
- _.each(options, function(value, key) {
- types[type].prototype[key] = value;
- });
-
- return true;
- } else return false;
- }
- };
-})();
-
-module.exports = factory;
-
-},{"./util.js":6}],3:[function(require,module,exports){
-var _ = require('./util.js');
-
-module.exports = function (canvas, grid, cellSize) {
- var ctx = canvas.getContext('2d');
- ctx.clearRect(0, 0, canvas.width, canvas.height);
-
- _.each(grid, function (column, x) {
- _.each(column, function (creature, y) {
- if (creature) {
- var color = creature.colorFn ?
- creature.colorFn() :
- creature.color + ',' + creature.energy / creature.maxEnergy;
-
- ctx.fillStyle = 'rgba(' + color + ')';
-
- if (creature.character) {
- ctx.fillText(creature.character, x * cellSize, y * cellSize + cellSize);
- } else {
- ctx.fillRect(x * cellSize, y * cellSize, cellSize, cellSize);
- }
- }
- });
- });
-};
-
-},{"./util.js":6}],4:[function(require,module,exports){
-// Creates an HD canvas element on page and
-// returns a reference to the element
-var createCanvasElement = function (width, height, cellSize, id, insertAfter) {
- width *= cellSize;
- height *= cellSize;
-
- // Creates a scaled-up canvas based on the device's
- // resolution, then displays it properly using styles
- function createHDCanvas (ratio) {
- var canvas = document.createElement('canvas');
- var ctx = canvas.getContext('2d');
-
- // Creates a dummy canvas to test device's pixel ratio
- ratio = (function () {
- var ctx = document.createElement('canvas').getContext('2d');
- var dpr = window.devicePixelRatio || 1;
- var bsr = ctx.webkitBackingStorePixelRatio ||
- ctx.mozBackingStorePixelRatio ||
- ctx.msBackingStorePixelRatio ||
- ctx.oBackingStorePixelRatio ||
- ctx.backingStorePixelRatio || 1;
- return dpr / bsr;
- })();
-
- canvas.width = width * ratio;
- canvas.height = height * ratio;
- canvas.style.width = width + 'px';
- canvas.style.height = height + 'px';
- ctx.setTransform(ratio, 0, 0, ratio, 0, 0);
- ctx.font = 'bold ' + cellSize + 'px Arial';
-
- if (id) canvas.id = id;
-
- return canvas;
- }
-
- var canvas = createHDCanvas();
-
- if (insertAfter) insertAfter.parentNode.insertBefore(canvas, insertAfter.nextSibling);
- else document.body.appendChild(canvas);
-
- return canvas;
-};
-
-module.exports = {
- createCanvasElement: createCanvasElement
-};
-
-},{}],5:[function(require,module,exports){
-var _ = require('./util');
-var factory = require('./creature.js');
-var display = require('./display.js');
-var dom = require('./dom.js');
-
-/**
- * Terrarium constructor function
- * @param {int} width number of cells in the x-direction
- * @param {int} height number of cells in the y-direction
- * @param {string} id id assigned to the generated canvas
- * @param {int} cellSize pixel width of each cell (default 10)
- * @param {string} insertAfter id of the element to insert the canvas after
- */
-function Terrarium(width, height, id, cellSize, insertAfter) {
- cellSize = cellSize || 10;
- this.cellSize = cellSize;
- this.width = width;
- this.height = height;
- this.grid = [];
- this.canvas = dom.createCanvasElement(width, height, cellSize, id, insertAfter);
- this.nextFrame = false;
- this.hasChanged = false;
-}
-
-/**
- * Create a grid and fill it by using a function, 2-d array, or uniform type
- * @param {*} content if function, fill grid according to fn(x, y)
- * if array, fill grid cells with the corresponding creatureType
- * if string, fill grid with that creatureType
- * otherwise, create empty grid
- * @return {grid} a grid adhering to the above rules
- */
-Terrarium.prototype.makeGrid = function (content) {
- var grid = [], type = typeof content;
- for (var x = 0, _w = this.width; x < _w; x++) {
- grid.push([]);
- for (var y = 0, _h = this.height; y < _h; y++) {
- grid[x].push(factory.make(
- type === 'function' ? content(x, y) :
- type === 'object' && content.length ? (content[y] || [])[x] :
- type === 'string' ? content :
- undefined
- ));
- }
- } return grid;
-};
-
-/**
- * Create a grid and fill it randomly with a set creature distribution
- * @param {array} distribution an array of arrays of the form [string 'creatureName', float fillPercent]
- */
-Terrarium.prototype.makeGridWithDistribution = function (distribution) {
- var current, rand = 0, grid = [];
- for (var x = 0, _w = this.width; x < _w; x++) {
- grid.push([]);
- for (var y = 0, _h = this.height; y < _h; y++) {
- grid[x].push(factory.make(_.pickRandomWeighted(distribution)));
- }
- } return grid;
-};
-
-/**
- * Returns the next step of the simulation
- * @param {} steps the number of steps to run through before returning
- * @return {grid} a new grid after || 1 steps
- */
-Terrarium.prototype.step = function (steps) {
- function copyAndRemoveInner (origCreature) {
- if (origCreature) {
- var copy = _.assign(new (origCreature.constructor)(), origCreature);
- var dead = copy && copy.isDead();
- if (dead && !self.hasChanged) self.hasChanged = true;
- copy.age++;
-
- return !dead ? copy : false;
- } else return false;
- }
-
- function copyAndRemove (origCols) {
- return _.map(origCols, copyAndRemoveInner);
- }
-
- // TODO: Switch coords to just x and y to be consistent w/ pickWinnerInner
- function zipCoordsWithNeighbors (coords) {
- return {
- coords: coords,
- creature: oldGrid[coords.x][coords.y]
- };
- }
-
- function processLoser (loser) {
- var loserCreature = loser.creature;
- if (loserCreature) {
- loserCreature.failureFn();
- loserCreature.boundEnergy();
- } else {
- loser.wait();
- loser.boundEnergy();
- }
- }
-
- function processCreaturesInner (creature, x, y) {
- if (creature) {
- var neighbors = _.map(
- _.getNeighborCoords(x, y, gridWidth - 1, gridHeight - 1, creature.actionRadius),
- zipCoordsWithNeighbors
- );
- var result = creature.process(neighbors, x, y);
- if (typeof result === 'object') {
- var eigenColumn = eigenGrid[result.x];
- var returnedCreature = result.creature;
- var returnedY = result.y;
-
- if (!eigenColumn[returnedY]) eigenColumn[returnedY] = [];
-
- eigenColumn[returnedY].push({
- x: x,
- y: y,
- creature: returnedCreature
- });
- if (!self.hasChanged && returnedCreature.observed) self.hasChanged = true;
- } else {
- if (result && !self.hasChanged) self.hasChanged = true;
- processLoser(creature);
- }
- }
- }
-
- function processCreatures (column, x) {
- _.each(column, function (creature, y) { processCreaturesInner(creature, x, y); });
- }
-
- function pickWinnerInner (superposition, x, y) {
- if (superposition) {
- var winner = superposition.splice(_.random(superposition.length - 1), 1)[0];
- var winnerCreature = winner.creature;
-
- // clear the original creature's square if successFn returns false
- if (!winnerCreature.successFn()) {
- newGrid[winner.x][winner.y] = false;
- }
- // TODO: so many calls to this. Can we just run it once at the start of a step?
- winnerCreature.boundEnergy();
-
- // put the winner in its rightful place
- newGrid[x][y] = winnerCreature;
-
- // ...and call wait() on the losers. We can do this without
- // affecting temporal consistency because all callbacks have
- // already been created with prior conditions
- _.each(superposition, processLoser);
- }
- }
-
- function pickWinner (column, x) {
- _.each(column, function (superposition, y) { pickWinnerInner(superposition, x, y); });
- }
-
- var self = this;
- var gridWidth = this.width;
- var gridHeight = this.height;
- var oldGrid = this.grid, newGrid, eigenGrid;
-
- if (typeof steps !== 'number') steps = 1;
-
- while (steps--) {
- this.hasChanged = false;
-
- oldGrid = newGrid ? _.clone(newGrid) : this.grid;
-
- // copy the old grid & remove dead creatures
- newGrid = _.map(oldGrid, copyAndRemove);
-
- // create an empty grid to hold creatures competing for the same square
- eigenGrid = this.makeGrid();
-
- // Add each creature's intended destination to the eigenGrid
- _.each(newGrid, processCreatures);
-
- // Choose a winner from each of the eigenGrid's superpositions
- _.each(eigenGrid, pickWinner);
-
- if (!this.hasChanged) return false;
- }
-
- return newGrid;
-};
-
-/**
- * Updates the canvas to reflect the current grid
- */
-Terrarium.prototype.draw = function () {
- display(this.canvas, this.grid, this.cellSize);
-};
-
-/**
- * Starts animating the simulation. Can be called with only a function.
- * @param {int} steps the simulation will stop after steps if specified
- * @param {Function} fn called as a callback once the animation finishes
- */
-Terrarium.prototype.animate = function (steps, fn) {
- function tick () {
- var grid = self.step();
- if (grid) {
- self.grid = grid;
- self.draw();
- if (++i !== steps) return self.nextFrame = requestAnimationFrame(tick);
- } // if grid hasn't changed || reached last step
- self.nextFrame = false;
- if (fn) fn();
- }
-
- if (typeof steps === 'function') {
- fn = steps;
- steps = null;
- }
-
- if (!this.nextFrame) {
- var i = 0;
- var self = this;
- self.nextFrame = requestAnimationFrame(tick);
- }
-};
-
-/**
- * Stops a currently running animation
- */
-Terrarium.prototype.stop = function () {
- cancelAnimationFrame(this.nextFrame);
- this.nextFrame = false;
-};
-
-module.exports = Terrarium;
-
-},{"./creature.js":2,"./display.js":3,"./dom.js":4,"./util":6}],6:[function(require,module,exports){
-// Seed Math.random() with seedrandom
-require('../bower_components/seedrandom/seedrandom.js')('terra :)', {global: true});
-
-// an extended custom build of lodash, generated with:
-// lodash exports=commonjs include=assign,clone,filter,each,map,random,reduce,some
-var _ = require('../lodash_custom/lodash.custom.min.js')._;
-
-/**
- * Takes a cell and returns the coordinates of its neighbors
- * @param {int} x0 - x position of cell
- * @param {int} y0 - y position of cell
- * @param {int} xMax - maximum x index i.e. grid width - 1
- * @param {int} yMax - maximum x index i.e. grid height - 1
- * @param {int} radius - (default = 1) neighbor radius
- * @return {array} - an array of [x, y] pairs of the neighboring cells
- */
-_.getNeighborCoords = function (x0, y0, xMax, yMax, radius) {
- var coords = [], current, xLo, xHi, yLo, yHi;
- if (typeof radius !== 'number' || radius < 1) radius = 1;
-
- xLo = Math.max(0, x0 - radius);
- yLo = Math.max(0, y0 - radius);
- xHi = Math.min(x0 + radius, xMax);
- yHi = Math.min(y0 + radius, yMax);
-
- for (var x = xLo; x <= xHi; x++)
- for (var y = yLo; y <= yHi; y++)
- if (x !== x0 || y !== y0)
- coords.push({ x: x, y: y });
-
- return coords;
-};
-
-_.pickRandomWeighted = function (weightedArrays) {
- var sum = 0, rand = _.random(100, true);
- var cur, i;
- for (i = 0, _len = weightedArrays.length; i < _len; i++) {
- cur = weightedArrays[i];
- sum += cur[1];
- if (sum > rand) return cur[0];
- } return false;
-};
-
-/**
- * CommonJS exports
- * @type {Object}
- */
-module.exports = _;
-
-},{"../bower_components/seedrandom/seedrandom.js":7,"../lodash_custom/lodash.custom.min.js":9}],7:[function(require,module,exports){
-/**
-
-seedrandom.js
-=============
-
-Seeded random number generator for Javascript.
-
-version 2.3.6
-Author: David Bau
-Date: 2014 May 14
-
-Can be used as a plain script, a node.js module or an AMD module.
-
-Script tag usage
-----------------
-
-
-
-// Sets Math.random to a PRNG initialized using the given explicit seed.
-Math.seedrandom('hello.');
-console.log(Math.random()); // Always 0.9282578795792454
-console.log(Math.random()); // Always 0.3752569768646784
-
-// Sets Math.random to an ARC4-based PRNG that is autoseeded using the
-// current time, dom state, and other accumulated local entropy.
-// The generated seed string is returned.
-Math.seedrandom();
-console.log(Math.random()); // Reasonably unpredictable.
-
-// Seeds using the given explicit seed mixed with accumulated entropy.
-Math.seedrandom('added entropy.', { entropy: true });
-console.log(Math.random()); // As unpredictable as added entropy.
-
-// Use "new" to create a local prng without altering Math.random.
-var myrng = new Math.seedrandom('hello.');
-console.log(myrng()); // Always 0.9282578795792454
-
-
-Node.js usage
--------------
-
-npm install seedrandom
-
-// Local PRNG: does not affect Math.random.
-var seedrandom = require('seedrandom');
-var rng = seedrandom('hello.');
-console.log(rng()); // Always 0.9282578795792454
-
-// Autoseeded ARC4-based PRNG.
-rng = seedrandom();
-console.log(rng()); // Reasonably unpredictable.
-
-// Global PRNG: set Math.random.
-seedrandom('hello.', { global: true });
-console.log(Math.random()); // Always 0.9282578795792454
-
-// Mixing accumulated entropy.
-rng = seedrandom('added entropy.', { entropy: true });
-console.log(rng()); // As unpredictable as added entropy.
-
-
-Require.js usage
-----------------
-
-Similar to node.js usage:
-
-bower install seedrandom
-
-require(['seedrandom'], function(seedrandom) {
- var rng = seedrandom('hello.');
- console.log(rng()); // Always 0.9282578795792454
-});
-
-
-Network seeding via a script tag
---------------------------------
-
-
-
-
-
-Examples of manipulating the seed for various purposes:
-
-var seed = Math.seedrandom(); // Use prng with an automatic seed.
-document.write(Math.random()); // Pretty much unpredictable x.
-
-var rng = new Math.seedrandom(seed); // A new prng with the same seed.
-document.write(rng()); // Repeat the 'unpredictable' x.
-
-function reseed(event, count) { // Define a custom entropy collector.
- var t = [];
- function w(e) {
- t.push([e.pageX, e.pageY, +new Date]);
- if (t.length < count) { return; }
- document.removeEventListener(event, w);
- Math.seedrandom(t, { entropy: true });
- }
- document.addEventListener(event, w);
-}
-reseed('mousemove', 100); // Reseed after 100 mouse moves.
-
-The "pass" option can be used to get both the prng and the seed.
-The following returns both an autoseeded prng and the seed as an object,
-without mutating Math.random:
-
-var obj = Math.seedrandom(null, { pass: function(prng, seed) {
- return { random: prng, seed: seed };
-}});
-
-
-Version notes
--------------
-
-The random number sequence is the same as version 1.0 for string seeds.
-* Version 2.0 changed the sequence for non-string seeds.
-* Version 2.1 speeds seeding and uses window.crypto to autoseed if present.
-* Version 2.2 alters non-crypto autoseeding to sweep up entropy from plugins.
-* Version 2.3 adds support for "new", module loading, and a null seed arg.
-* Version 2.3.1 adds a build environment, module packaging, and tests.
-* Version 2.3.4 fixes bugs on IE8, and switches to MIT license.
-* Version 2.3.6 adds a readable options object argument.
-
-The standard ARC4 key scheduler cycles short keys, which means that
-seedrandom('ab') is equivalent to seedrandom('abab') and 'ababab'.
-Therefore it is a good idea to add a terminator to avoid trivial
-equivalences on short string seeds, e.g., Math.seedrandom(str + '\0').
-Starting with version 2.0, a terminator is added automatically for
-non-string seeds, so seeding with the number 111 is the same as seeding
-with '111\0'.
-
-When seedrandom() is called with zero args or a null seed, it uses a
-seed drawn from the browser crypto object if present. If there is no
-crypto support, seedrandom() uses the current time, the native rng,
-and a walk of several DOM objects to collect a few bits of entropy.
-
-Each time the one- or two-argument forms of seedrandom are called,
-entropy from the passed seed is accumulated in a pool to help generate
-future seeds for the zero- and two-argument forms of seedrandom.
-
-On speed - This javascript implementation of Math.random() is several
-times slower than the built-in Math.random() because it is not native
-code, but that is typically fast enough. Some details (timings on
-Chrome 25 on a 2010 vintage macbook):
-
-* seeded Math.random() - avg less than 0.0002 milliseconds per call
-* seedrandom('explicit.') - avg less than 0.2 milliseconds per call
-* seedrandom('explicit.', true) - avg less than 0.2 milliseconds per call
-* seedrandom() with crypto - avg less than 0.2 milliseconds per call
-
-Autoseeding without crypto is somewhat slower, about 20-30 milliseconds on
-a 2012 windows 7 1.5ghz i5 laptop, as seen on Firefox 19, IE 10, and Opera.
-Seeded rng calls themselves are fast across these browsers, with slowest
-numbers on Opera at about 0.0005 ms per seeded Math.random().
-
-
-LICENSE (MIT)
--------------
-
-Copyright (c)2014 David Bau.
-
-Permission is hereby granted, free of charge, to any person obtaining
-a copy of this software and associated documentation files (the
-"Software"), to deal in the Software without restriction, including
-without limitation the rights to use, copy, modify, merge, publish,
-distribute, sublicense, and/or sell copies of the Software, and to
-permit persons to whom the Software is furnished to do so, subject to
-the following conditions:
-
-The above copyright notice and this permission notice shall be
-included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
-CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
-TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
-SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-*/
-
-/**
- * All code is in an anonymous closure to keep the global namespace clean.
- */
-(function (
- global, pool, math, width, chunks, digits, module, define, rngname) {
-
-//
-// The following constants are related to IEEE 754 limits.
-//
-var startdenom = math.pow(width, chunks),
- significance = math.pow(2, digits),
- overflow = significance * 2,
- mask = width - 1,
-
-//
-// seedrandom()
-// This is the seedrandom function described above.
-//
-impl = math['seed' + rngname] = function(seed, options, callback) {
- var key = [];
- options = (options == true) ? { entropy: true } : (options || {});
-
- // Flatten the seed string or build one from local entropy if needed.
- var shortseed = mixkey(flatten(
- options.entropy ? [seed, tostring(pool)] :
- (seed == null) ? autoseed() : seed, 3), key);
-
- // Use the seed to initialize an ARC4 generator.
- var arc4 = new ARC4(key);
-
- // Mix the randomness into accumulated entropy.
- mixkey(tostring(arc4.S), pool);
-
- // Calling convention: what to return as a function of prng, seed, is_math.
- return (options.pass || callback ||
- // If called as a method of Math (Math.seedrandom()), mutate Math.random
- // because that is how seedrandom.js has worked since v1.0. Otherwise,
- // it is a newer calling convention, so return the prng directly.
- function(prng, seed, is_math_call) {
- if (is_math_call) { math[rngname] = prng; return seed; }
- else return prng;
- })(
-
- // This function returns a random double in [0, 1) that contains
- // randomness in every bit of the mantissa of the IEEE 754 value.
- function() {
- var n = arc4.g(chunks), // Start with a numerator n < 2 ^ 48
- d = startdenom, // and denominator d = 2 ^ 48.
- x = 0; // and no 'extra last byte'.
- while (n < significance) { // Fill up all significant digits by
- n = (n + x) * width; // shifting numerator and
- d *= width; // denominator and generating a
- x = arc4.g(1); // new least-significant-byte.
- }
- while (n >= overflow) { // To avoid rounding up, before adding
- n /= 2; // last byte, shift everything
- d /= 2; // right using integer math until
- x >>>= 1; // we have exactly the desired bits.
- }
- return (n + x) / d; // Form the number within [0, 1).
- }, shortseed, 'global' in options ? options.global : (this == math));
-};
-
-//
-// ARC4
-//
-// An ARC4 implementation. The constructor takes a key in the form of
-// an array of at most (width) integers that should be 0 <= x < (width).
-//
-// The g(count) method returns a pseudorandom integer that concatenates
-// the next (count) outputs from ARC4. Its return value is a number x
-// that is in the range 0 <= x < (width ^ count).
-//
-/** @constructor */
-function ARC4(key) {
- var t, keylen = key.length,
- me = this, i = 0, j = me.i = me.j = 0, s = me.S = [];
-
- // The empty key [] is treated as [0].
- if (!keylen) { key = [keylen++]; }
-
- // Set up S using the standard key scheduling algorithm.
- while (i < width) {
- s[i] = i++;
- }
- for (i = 0; i < width; i++) {
- s[i] = s[j = mask & (j + key[i % keylen] + (t = s[i]))];
- s[j] = t;
- }
-
- // The "g" method returns the next (count) outputs as one number.
- (me.g = function(count) {
- // Using instance members instead of closure state nearly doubles speed.
- var t, r = 0,
- i = me.i, j = me.j, s = me.S;
- while (count--) {
- t = s[i = mask & (i + 1)];
- r = r * width + s[mask & ((s[i] = s[j = mask & (j + t)]) + (s[j] = t))];
- }
- me.i = i; me.j = j;
- return r;
- // For robust unpredictability discard an initial batch of values.
- // See http://www.rsa.com/rsalabs/node.asp?id=2009
- })(width);
-}
-
-//
-// flatten()
-// Converts an object tree to nested arrays of strings.
-//
-function flatten(obj, depth) {
- var result = [], typ = (typeof obj), prop;
- if (depth && typ == 'object') {
- for (prop in obj) {
- try { result.push(flatten(obj[prop], depth - 1)); } catch (e) {}
- }
- }
- return (result.length ? result : typ == 'string' ? obj : obj + '\0');
-}
-
-//
-// mixkey()
-// Mixes a string seed into a key that is an array of integers, and
-// returns a shortened string seed that is equivalent to the result key.
-//
-function mixkey(seed, key) {
- var stringseed = seed + '', smear, j = 0;
- while (j < stringseed.length) {
- key[mask & j] =
- mask & ((smear ^= key[mask & j] * 19) + stringseed.charCodeAt(j++));
- }
- return tostring(key);
-}
-
-//
-// autoseed()
-// Returns an object for autoseeding, using window.crypto if available.
-//
-/** @param {Uint8Array|Navigator=} seed */
-function autoseed(seed) {
- try {
- global.crypto.getRandomValues(seed = new Uint8Array(width));
- return tostring(seed);
- } catch (e) {
- return [+new Date, global, (seed = global.navigator) && seed.plugins,
- global.screen, tostring(pool)];
- }
-}
-
-//
-// tostring()
-// Converts an array of charcodes to a string
-//
-function tostring(a) {
- return String.fromCharCode.apply(0, a);
-}
-
-//
-// When seedrandom.js is loaded, we immediately mix a few bits
-// from the built-in RNG into the entropy pool. Because we do
-// not want to intefere with determinstic PRNG state later,
-// seedrandom will not call math.random on its own again after
-// initialization.
-//
-mixkey(math[rngname](), pool);
-
-//
-// Nodejs and AMD support: export the implemenation as a module using
-// either convention.
-//
-if (module && module.exports) {
- module.exports = impl;
-} else if (define && define.amd) {
- define(function() { return impl; });
-}
-
-// End anonymous scope, and pass initial values.
-})(
- this, // global window object
- [], // pool: entropy pool starts empty
- Math, // math: package containing random, pow, and seedrandom
- 256, // width: each RC4 output is 0 <= x < 256
- 6, // chunks: at least six RC4 outputs for each double
- 52, // digits: there are 52 significant digits in a double
- (typeof module) == 'object' && module, // present in node.js
- (typeof define) == 'function' && define, // present with an AMD loader
- 'random'// rngname: name for Math.random and Math.seedrandom
-);
-
-},{}],8:[function(require,module,exports){
-var factory = require('../../app/creature.js');
-var _ = require('../../app/util.js');
-
-factory.registerCreature({
- type: 'plant',
- color: [0, 120, 0],
- size: 10,
- initialEnergy: 5,
- maxEnergy: 20,
- wait: function() {
- this.energy += 1;
- },
- move: false,
- reproduceLv: 0.65
-});
-
-factory.registerCreature({
- type: 'brute',
- color: [0, 255, 255],
- maxEnergy: 50,
- initialEnergy: 10,
- size: 20
-});
-
-factory.registerCreature({
- type: 'bully',
- color: [241, 196, 15],
- initialEnergy: 20,
- reproduceLv: 0.6,
- sustainability: 3
-});
-
-factory.registerCA({
- type: 'GoL',
- colorFn: function () { return this.alive ? this.color + ',1' : '0,0,0,0'; },
- process: function (neighbors) {
- var surrounding = _.filter(neighbors, function (spot) {
- return spot.creature.alive;
- }).length;
- this.alive = surrounding === 3 || surrounding === 2 && this.alive;
- return true;
- }
-}, function () {
- this.alive = Math.random() < 0.5;
-});
-
-factory.registerCA({
- type: 'cyclic',
- colors: ['255,0,0,1', '255,96,0,1', '255,191,0,1', '223,255,0,1', '128,255,0,1', '32,255,0,1', '0,255,64,1', '0,255,159,1', '0,255,255,1', '0,159,255,1', '0,64,255,1', '32,0,255,1', '127,0,255,1', '223,0,255,1', '255,0,191,1', '255,0,96,1'],
- colorFn: function () { return this.colors[this.state];},
- process: function (neighbors) {
- var next = (this.state + 1) % 16;
- var changing = _.some(neighbors, function (spot) {
- return spot.creature.state === next;
- });
- if (changing) this.state = next;
- return true;
- }
-}, function () {
- this.state = Math.floor(Math.random() * 16);
-});
-
-factory.registerCreature({
- type: 'secondCreature',
- color: [154, 109, 235],
- initialEnergy: 100,
- sustainability: 6,
- reproduceLv: 1,
- moveLv: 0
-});
-
-factory.registerCreature({
- type: 'simplePlant',
- color: [166, 226, 46],
- colorFn: function () {
- return this.color + ',1';
- },
- size: 10,
- initialEnergy: 5,
- maxEnergy: 20,
- wait: function() {
- this.energy += 1;
- },
- move: false,
- reproduceLv: 0.65
-});
-
-factory.registerCA({
- type: 'elementary',
- alive: false,
- ruleset: [1, 0, 0, 1, 0, 0, 1, 0].reverse(), // rule 146
- colorFn: function () { return this.alive ? this.color + ',1' : '0,0,0,0'; },
- process: function (neighbors, x, y) {
- if (this.age === y) {
- var index = _.map(_.filter(neighbors, function (neighbor) {
- return neighbor.coords.y === y - 1;
- }), function (neighbor) {
- return neighbor.creature.alive ? 1 : 0;
- });
- index = parseInt(index.join(''), 2);
- this.alive = isNaN(index) ? !x : this.ruleset[index];
- }
- return true;
- }
-});
-
-},{"../../app/creature.js":2,"../../app/util.js":6}],9:[function(require,module,exports){
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- * @license
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