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Rethinking my entire data storage and logic flow mechanisms. Storing
everything in json files
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//GrimoireJS v0.2
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//by Russell Champoux
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//Grimoire magic item generator for the Pathfinder roleplaying game
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/*global $:false, _:false, Chance:false, console:true */
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'use strict';
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var Grimoire = {};
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var TYPES = {
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ARMOR_AND_SHIELDS: 'Armor and Shields',
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POTIONS: 'Potions',
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RINGS: 'Rings',
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RODS: 'Rods',
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SCROLLS: 'Scrolls',
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STAVES: 'Staves',
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WANDS: 'Wands',
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WEAPONS: 'Weapons',
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WONDROUS_ITEMS: 'Wondrous Items',
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SPELLS: 'Spells'
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};
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var SPELL_TYPES = {
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ARCANE: 'Arcane',
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DIVINE: 'Divine'
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};
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var QUALITIES = {
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MINOR:'minor',
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MEDIUM: 'medium',
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MAJOR: 'major'
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};
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var WEIGHTS = {};
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WEIGHTS[QUALITIES.MINOR] =
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{
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ARMOR_AND_SHIELDS: 4,
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WEAPONS: 5,
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POTIONS: 35,
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RINGS: 2,
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RODS: 0,
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SCROLLS: 35,
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STAVES: 0,
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WANDS: 10,
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WONDROUS_ITEMS: 9,
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};
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WEIGHTS[QUALITIES.MEDIUM] =
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{
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ARMOR_AND_SHIELDS: 10,
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WEAPONS: 10,
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POTIONS: 10,
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RINGS: 10,
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RODS: 10,
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SCROLLS: 15,
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STAVES: 3,
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WANDS: 15,
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WONDROUS_ITEMS: 17,
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};
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WEIGHTS[QUALITIES.MAJOR] = {
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ARMOR_AND_SHIELDS: 10,
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WEAPONS: 10,
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POTIONS: 5,
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RINGS: 10,
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RODS: 10,
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SCROLLS: 10,
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STAVES: 20,
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WANDS: 5,
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WONDROUS_ITEMS: 20,
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};
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//Contains all the source info
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var SOURCES = [];
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$.getJSON('sources/sources.json', function(sources) {
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sources.sources.forEach(function(url) {
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$.getJSON('sources/' + url, function(source) {
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console.log('loaded sources/'+ url);
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source.data = {};
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//construct the data containers we will insert later data into
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source.types.forEach(function(type) {
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source.data[type] = {};
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source.data[type].enabled = true;
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var typeUrl = 'sources/' + source.shortName + '/' + type + '.json';
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$.getJSON(typeUrl, function(typeData) {
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source.data[type].data = typeData.data;
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console.log('loaded sources/' + typeUrl);
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})
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.fail(function(d, textStatus, error) {
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console.error('getJSON failed to load '+typeUrl+ ', status: ' + textStatus + ', error: '+error);
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});
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});
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SOURCES.push(source);
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})
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.fail(function(d, textStatus, error) {
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console.error('getJSON failed to load '+url+ ', status: ' + textStatus + ', error: '+error);
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});
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});
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})
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.fail(function(err) {
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console.log('Failed to load sources list:', err);
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});
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Grimoire.getItems = function(sources, quality, count, types, options) {
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var items = [];
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//Error checking block
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if(!sources || sources.length === 0) { console.log('No sources given!'); return items; }
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if(!types || types == 'any' || types.length === 0) {
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types = _.values(TYPES); //set to all types
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}
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for(var i in types) {
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if(_.values(TYPES).indexOf(types[i]) == -1) { console.log('Invalid type ' + types[i]); return items; }
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}
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if(_.values(QUALITIES).indexOf(quality) == -1) { console.log('Invalid quality ' + quality); return items; }
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if(!count || count < 1) { count = 1; }
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options = options ? options : {};
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//initialize the chance engine, using a seed if provided (for testing purposes)
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//we do this now instead of reinitializing the Chance engine each time we generate an item
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options.chance = (options.chance ? options.chance : options.seed ? new Chance(options.seed) : new Chance());
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_.times(count, function() {
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var item = Grimoire.getItem(sources, quality, types, options);
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if(item) {
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items.push(item);
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console.log(item);
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}
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});
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return items;
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};
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var selectSource = function(sources, quality, type, options) {
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options = options ? options : {};
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var chance = (options.chance ? options.chance : options.seed ? new Chance(options.seed) : new Chance());
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var source = {};
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var sourceWeights = {};
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//***SPELLS AND SCROLLS***
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//************************
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if(type == TYPES.SCROLLS || type == TYPES.SPELLS) {
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if(!options.spellType || !options.spellLevel) {
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console.log('Error selecting source for Spells. Invalid options', options);
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}
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sourceWeights = _.map(sources, function(source) {
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if(source.data.Spells && source.data.Spells.enabled) {
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if(source.data.Spells.data[options.spellType]) {
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return source.data[type].data[options.spellType][options.spellLevel].length;
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}
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else { //source did not have my desired spell type
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return 0;
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}
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}
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else { //source has no spells
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return 0;
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}
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});
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}
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//***WONDROUS ITEMS***
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//********************
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else if(type == TYPES.WONDROUS_ITEMS) {
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sourceWeights = _.map(sources,
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function(source) {
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if(source.data[type] && source.data[type].enabled && source.data[type].data[quality]) {
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return source.data[type].data[quality].length;
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}
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else {
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return 0; //either no data, disabled, or not items of that quality
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}
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});
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}
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//***EVERYTHING ELSE***
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//*********************
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else {
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if(type == TYPES.RODS && quality == QUALITIES.MINOR) {
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console.log('Error! There are no ' + QUALITIES.MINOR + ' ' + TYPES.RODS);
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return;
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}
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//Determine which source to use
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//get a count from each source of what we're looking for
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sourceWeights = _.map(sources,
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function(source) {
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//only choose from sources that HAVE that type of item
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//AND are enabled
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//AND have at least one item of that quality with a probability weight
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if(source.data[type] && source.data[type].enabled) {
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return _.filter(source.data[type].data,
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function(item) {
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return item.weight[quality] > 0;
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}).length;
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}
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else {
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return 0;
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}
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});
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}
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if(_.sum(sourceWeights) <= 0) {
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console.log('Unable to find valid ' + quality + ' ' + type + ' within sources!', sources);
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return;
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}
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//chance.weighted will DESTRUCTIVELY modify paramaters that have a weight of zero
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//in this case, that means sources that do not contain the selected type
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//or sources that have types we want but with no weight
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//because of that, I create a temp array that I don't care if chance mangles
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source = sources[chance.weighted(_.range(sources.length), sourceWeights)];
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return source;
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};
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Grimoire.getItem = function(sources, quality, types, options) {
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options = options ? options : {};
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var chance = (options.chance ? options.chance : options.seed ? new Chance(options.seed) : new Chance());
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var itemType = '';
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if(types.length == 1) {
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itemType = types[0];
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}
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else {
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//Create a weighted-average map based on the desired types
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var localWeights = _.clone(WEIGHTS[quality]); //copy the default weighted-average for this quality
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for(var key in localWeights) {
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if(_.values(types).indexOf(TYPES[key]) == -1) { //remove any items that were not selected
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delete localWeights[key];
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}
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}
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//Determine the type of item to generate
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//console.log(localWeights);
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itemType = TYPES[chance.weighted(_.keys(localWeights), _.values(localWeights))];
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}
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var item = {};
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var source = {};
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//GENERATE ITEM
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//SCROLLS
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if(itemType == TYPES.SCROLLS) {
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item = Grimoire.getScroll(sources, quality, undefined /*spell type*/, options);
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}
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//WONDROUS ITEMS
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else if(itemType == TYPES.WONDROUS_ITEMS) {
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//Select the item source based on the quality and item type
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source = selectSource(sources, quality, itemType, options);
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item = _.clone(chance.pick(source.data[itemType].data[quality]));
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item.source = source.shortName;
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if(options.allIntelligent || (!options.disableIntelligent && chance.d100() == 1)) {
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item.intelligence = 'WOOHOO I AM INTELLIGENT!';
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}
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}
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//EVERYTHING ELSE
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else {
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//Select the item source based on the quality and item type
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source = selectSource(sources, quality, itemType, options);
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var totalWeights = _.sum(_.map(source.data[itemType].data, function(item) { return item.weight[quality]; }));
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var roll = chance.integer({min: 1, max: totalWeights});
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//EXCEPTIONS FOR ARMOR_AND_SHEILDS
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//EXCEPTIONS FOR WEAPONS
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//EXCEPTIONS FOR POTIONS
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//EXCEPTIONS FOR WANDS
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//CHANCE FOR INTELLIGENT WEAPONS, RINGS, RODS, STAVES, OR WONDROUS ITEMS
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var itemData = source.data[itemType].data;
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for(var i in itemData) { //check all 'itemType' items in the source
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if(roll <= itemData[i].weight[quality]) { //if we roll under their weighted probability
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item = _.clone(itemData[i]);
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delete item.weight;
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item.source = source.shortName;
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break;
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}
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else { //decrease the roll value by the current item's weighted probability
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roll -= itemData[i].weight[quality];
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}
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}
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}
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item.quality = quality;
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return item;
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};
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Grimoire.getSpells = function(sources, level, count, type, options) {
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options = options ? options : {};
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var spells = [];
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options.chance = (options.chance ? options.chance : options.seed ? new Chance(options.seed) : new Chance());
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_.times(count, function() {
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spells.push(Grimoire.getSpell(sources, level, type, options));
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});
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return spells;
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};
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Grimoire.getSpell = function(sources, level, type, options) {
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options = options ? options : {};
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//initialize the chance engine, using a seed if provided (for testing purposes)
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var chance = (options.chance ? options.chance : options.seed ? new Chance(options.seed) : new Chance());
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var spellType = type ? type : chance.pick(_.values(SPELL_TYPES));
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options.spellType = spellType;
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options.spellLevel = level;
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var source = selectSource(sources, undefined, TYPES.SPELLS, options);
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//console.log('Generating a level ' + level + ' ' + spellType + ' spell from ' + source.shortName);
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var spell = {
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name: chance.pick(source.data.Spells.data[spellType][level]),
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level: level,
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type: spellType,
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source: source.shortName
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};
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return spell;
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};
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Grimoire.getScroll = function(sources, quality, type, options) {
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options = options ? options : {};
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var chance = (options.chance ? options.chance : options.seed ? new Chance(options.seed) : new Chance());
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var cost = [12.5, 25, 150, 375, 700, 1125, 1650, 2275, 3000, 3825];
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var spellLevel = 0;
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var roll = chance.integer({min: 1, max: 100});
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if(quality == QUALITIES.MINOR) {
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switch(true) {
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case (roll <= 5): spellLevel = 0; break;
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case (roll <= 50): spellLevel = 1; break;
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case (roll <= 95): spellLevel = 2; break;
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case (roll <= 100): spellLevel = 3; break;
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}
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}
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else if(quality == QUALITIES.MEDIUM) {
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switch(true) {
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case (roll <= 5): spellLevel = 2; break;
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case (roll <= 65): spellLevel = 3; break;
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case (roll <= 95): spellLevel = 4; break;
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case (roll <= 100): spellLevel = 5; break;
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}
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}
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else if(quality == QUALITIES.MAJOR) {
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switch(true) {
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case (roll <= 5): spellLevel = 4; break;
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case (roll <= 50): spellLevel = 5; break;
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case (roll <= 70): spellLevel = 6; break;
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case (roll <= 85): spellLevel = 7; break;
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case (roll <= 95): spellLevel = 8; break;
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case (roll <= 100): spellLevel = 9; break;
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}
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}
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var spell = Grimoire.getSpell(sources, spellLevel, type, options);
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return {
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'name': 'Scroll of ' + spell.name,
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'description': '(' + spell.type + ', spell level ' + spellLevel + ', caster level ' + _.max([1, (spellLevel*2-1)]) + ')',
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'cost': cost[spellLevel],
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'source': spell.source
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};
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};
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