requirebin sketch

index.js

var Pocket = require('pocket-ces');
var arbit = require('arbit');

var pkt = new Pocket();
var random = arbit();

var uiHTML = ''
 + '<button onclick="handlePlantSeedClick()">Plant a seed</button>'
 + '<button onclick="handleTickClick()">Walk through the fields</button>'
 + '<button onclick="handleHarvestClick()">Harvest!</button>'
 + '<button onclick="handleNapClick()">Take a relaxing nap</button>'
 + '<div id="status-pane"></div>'
document.body.innerHTML = uiHTML;

pkt.cmpType('life', function (cmp, opts) {
  cmp.age = cmp.age || 1;
})

pkt.cmpType('growth', function (cmp, opts) {
  cmp.height = cmp.height || 0;
});

pkt.cmpType('bag', function (cmp, opts) {
  cmp.seeds = cmp.seeds || 1;
});

pkt.systemForEach(
  'plants-grow',
	['life', 'growth'],
function (pkt, key, life, growth) {
  growth.height += Math.log(life.age);
  life.age += 1;
});

pkt.systemForEach(
  'plant-harvester',
	['life', 'growth'],
function (pkt, key, life, growth) {
  var shouldHarvest = pkt.keysMatching('cmd:should-harvest');
  if (!shouldHarvest.length) return;
  shouldHarvest.forEach(function(key) { pkt.destroyKey(key) });
  var bag = pkt.firstData('bag');
  if (life.age > 20) {
    bag.seeds += Math.floor(growth.height / life.age);
    pkt.destroyKey(key);
  } 
});

pkt.system(
  'system-printer',
	[],
function (pkt) {
  var pane = document.querySelector('#status-pane');
  var bag = pkt.firstData('bag');
  var lifes = pkt.indexedData('life');
  var growths = pkt.indexedData('growth');
  var keys = pkt.keysMatching('life', 'growth');
  if (!keys.length) {
    pane.innerHTML = 'Your fields are empty.';
  } else {
    pane.innerHTML = keys.map(function(key) {
      return '<b>height:</b> '
      	+ growths[key].height
      	+ ', <b>age:</b> '
      	+ lifes[key].age;  
    }).join('<br>')
  }
  pane.innerHTML += '<p>Your bag has ' + bag.seeds + ' seeds.</p>';
});

pkt.key({
  bag: null
});

window.handlePlantSeedClick = function (e) {
  var bag = pkt.firstData('bag');
  if (bag.seeds > 0) {
    bag.seeds--;
    pkt.key({
      life: null,
      growth: null
    });
    pkt.tick(16);
  }
}

window.handleHarvestClick = function (e) {
  var shouldHarvest = pkt.keysMatching('cmd:should-harvest');
  if (!shouldHarvest.length) {
  	pkt.key({ 'cmd:should-harvest': null });
    pkt.tick(16);
	  pkt.tick(16);
  }
}

window.handleTickClick = function (e) {
  pkt.tick(16);
}

window.handleNapClick = function (e) {
  var count = random.nextInt(1,101);
  while(count--) pkt.tick(16);
}

minified.js

require=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<r.length;o++)s(r[o]);return s}({1:[function(require,module,exports){var System=require("./system");function Pocket(){this.componentTypes={};this.systems=[];this.components={};this.keys={};this.labels={};this.idCounter=0;this.keysToDestroy={};this.indexedData=this.indexedData.bind(this)}Pocket.prototype.nextId=function(){return++this.idCounter};Pocket.prototype.tick=function(dt){var self=this;Object.keys(this.keysToDestroy).forEach(function(id){self.immediatelyDestroyKey(id);delete self.keysToDestroy[id]});this.dt=dt;for(var i=0;i<this.systems.length;i++){var system=this.systems[i];var datas=system.requiredComponents.map(this.indexedData);var keys=this.keysMatching.apply(this,system.requiredComponents);if(!keys.length&&system.requiredComponents.length>0)continue;datas.unshift(keys);datas.unshift(this);system.action.apply(system,datas)}};Pocket.prototype.system=function(name,requirements,fn){return this.systems.push(new System(name,requirements,fn))};Pocket.prototype.systemForEach=function(name,requirements,fn){var action=fn;fn=function(pkt,keys){for(var i=0,args=[];i<arguments.length;i++)args[i]=arguments[i];var components=args.slice(0);var key;for(var i=0;i<keys.length;i++){key=keys[i];args[1]=key;for(var j=2;j<components.length;j++){args[j]=components[j][key]}action.apply(this,args)}};return this.systems.push(new System(name,requirements,fn))};Pocket.prototype.systemFromObject=Pocket.prototype.sysFromObj=function(obj){if(obj.actionEach)return this.systemForEach(obj.name,obj.reqs,obj.actionEach);return this.system(obj.name,obj.reqs,obj.action)};Pocket.prototype.cmpType=Pocket.prototype.componentType=function(name,initializer){this.componentTypes[name]=typeof initializer=="object"?initializer:{init:initializer,dalloc:function(){},malloc:function(){return{}}}};Pocket.prototype.key=function(componentsValues){var id=componentsValues.id?componentsValues.id:this.nextId();if(componentsValues.id&&this.keys[componentsValues.id]){console.warn("discarding component id "+componentsValues.id);id=this.nextId()}this.keys[id]=id;Object.keys(componentsValues).forEach(function(cmpName){this.addComponentTokey(id,cmpName,componentsValues[cmpName])},this);return id};Pocket.prototype.destroyKey=function(id){this.keysToDestroy[id]=true};Pocket.prototype.immediatelyDestroyKey=function(id){var self=this;var found=this.keys[id];if(!found){throw new Error("key with id "+id+" already destroyed")}delete this.keys[id];Object.keys(this.components).forEach(function(name){delete self.components[name][id]})};Pocket.prototype.addComponentTokey=function(id,componentName,opt_props){var key=this.keys[id];if(!key){throw new Error('Could not find key with id "'+id+'"')}var others=this.components[componentName]||(this.components[componentName]={});var cmp=others[id];if(!cmp){cmp=others[id]={};var componentDef=this.componentTypes[componentName];if(componentDef){componentDef.init(cmp,opt_props||{})}else if(!this.labels[componentName]){this.labels[componentName]=true;console.log("Found no component initializer for "+'"'+componentName+'"'+", assuming it is a label.")}}};Pocket.prototype.indexedData=function(name){return this.components[name]||{}};Pocket.prototype.firstData=function(name){var data=this.components[name]||{};return data[Object.keys(data)[0]]};Pocket.prototype.dataFor=function(id,name){return this.components[name][id]};Pocket.prototype.firstkey=function(name1,name2,nameN){for(var i=0,args=[];i<arguments.length;i++)args[i]=arguments[i];var keys=this.keysMatching.apply(this,args);return keys[0]};Pocket.prototype.keysMatching=function(name0,nameN){var matching=[];var table0=this.components[name0];if(!table0)return matching;var ids=Object.keys(table0);for(var i=0;i<ids.length;i++){var id=ids[i];var found=true;for(var j=1;j<arguments.length;j++){var name=arguments[j];var tableN=this.components[name];if(!tableN||!tableN[id]){found=false;break}}if(found){matching.push(this.keys[id])}}return matching};module.exports=Pocket},{"./system":2}],2:[function(require,module,exports){function System(name,requiredComponents,action){this.name=name;this.action=action;this.requiredComponents=requiredComponents}module.exports=System},{}],"pocket-ces":[function(require,module,exports){module.exports=require("./lib/pocket")},{"./lib/pocket":1}]},{},[]);require=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<r.length;o++)s(r[o]);return s}({arbit:[function(require,module,exports){function alea(s0,s1,c){var f=function aleaStep(){var t=2091639*s0+c*2.3283064365386963e-10;s0=s1;return s1=t-(c=t|0)};f.getState=function aleaGetState(){return[s0,s1,c]};f.nextFloat=aleaNextFloat;f.nextInt=aleaNextInt;return f}function aleaNextFloat(opt_minOrMax,opt_max){var value=this();var min,max;if(typeof opt_max=="number"){min=opt_minOrMax;max=opt_max}else if(typeof opt_minOrMax=="number"){min=0;max=opt_minOrMax}else{return value}return min+value*(max-min)}function aleaNextInt(minOrMax,opt_max){return Math.floor(this.nextFloat(minOrMax,opt_max))}function aleaFromSeed(seed){var s0,s1,h,n=4022871197,v;seed="X"+(seed||+new Date);for(var i=0;i<2;i++){for(var j=0;j<seed.length;j++){n+=seed.charCodeAt(j);h=.02519603282416938*n;n=h>>>0;h-=n;h*=n;n=h>>>0;h-=n;n+=h*4294967296}v=(n>>>0)*2.3283064365386963e-10;if(i===0)s0=v;else s1=v}return alea(s0,s1,1)}aleaFromSeed.fromState=function aleaFromState(state){return alea.apply(null,state)};module.exports=aleaFromSeed},{}]},{},[]);var Pocket=require("pocket-ces");var arbit=require("arbit");var pkt=new Pocket;var random=arbit();var uiHTML=""+'<button onclick="handlePlantSeedClick()">Plant a seed</button>'+'<button onclick="handleTickClick()">Walk through the fields</button>'+'<button onclick="handleHarvestClick()">Harvest!</button>'+'<button onclick="handleNapClick()">Take a relaxing nap</button>'+'<div id="status-pane"></div>';document.body.innerHTML=uiHTML;pkt.cmpType("life",function(cmp,opts){cmp.age=cmp.age||1});pkt.cmpType("growth",function(cmp,opts){cmp.height=cmp.height||0});pkt.cmpType("bag",function(cmp,opts){cmp.seeds=cmp.seeds||1});pkt.systemForEach("plants-grow",["life","growth"],function(pkt,key,life,growth){growth.height+=Math.log(life.age);life.age+=1});pkt.systemForEach("plant-harvester",["life","growth"],function(pkt,key,life,growth){var shouldHarvest=pkt.keysMatching("cmd:should-harvest");if(!shouldHarvest.length)return;shouldHarvest.forEach(function(key){pkt.destroyKey(key)});var bag=pkt.firstData("bag");if(life.age>20){bag.seeds+=Math.floor(growth.height/life.age);pkt.destroyKey(key)}});pkt.system("system-printer",[],function(pkt){var pane=document.querySelector("#status-pane");var bag=pkt.firstData("bag");var lifes=pkt.indexedData("life");var growths=pkt.indexedData("growth");var keys=pkt.keysMatching("life","growth");if(!keys.length){pane.innerHTML="Your fields are empty."}else{pane.innerHTML=keys.map(function(key){return"<b>height:</b> "+growths[key].height+", <b>age:</b> "+lifes[key].age}).join("<br>")}pane.innerHTML+="<p>Your bag has "+bag.seeds+" seeds.</p>"});pkt.key({bag:null});window.handlePlantSeedClick=function(e){var bag=pkt.firstData("bag");if(bag.seeds>0){bag.seeds--;pkt.key({life:null,growth:null});pkt.tick(16)}};window.handleHarvestClick=function(e){var shouldHarvest=pkt.keysMatching("cmd:should-harvest");if(!shouldHarvest.length){pkt.key({"cmd:should-harvest":null});pkt.tick(16);pkt.tick(16)}};window.handleTickClick=function(e){pkt.tick(16)};window.handleNapClick=function(e){var count=random.nextInt(1,101);while(count--)pkt.tick(16)};

package.json

{
  "name": "plant-sim",
  "description": "Grow some plants",
  "version": "1.0.0",
  "dependencies": {
    "pocket-ces": "1.0.1",
    "arbit": "0.1.1"
  }
}

page-body.html

<!-- contents of this file will be placed inside the <body> -->
<canvas id="cvs"></canvas>

page-head.html

<!-- contents of this file will be placed inside the <head> -->

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