97 lines
3.0 KiB
CoffeeScript
97 lines
3.0 KiB
CoffeeScript
###
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# Crafting Guide - crafting_plan.coffee
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#
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# Copyright (c) 2014 by Redwood Labs
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# All rights reserved.
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###
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Inventory = require './inventory'
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########################################################################################################################
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module.exports = class CraftingPlan
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constructor: (@modPack, includingTools)->
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if not @modPack then throw new Error 'modPack is required'
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@includingTools = if includingTools then true else false
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@clear()
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# Public Methods ###############################################################################
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clear: ->
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@make = new Inventory
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@need = new Inventory
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@result = new Inventory
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@steps = []
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@_expected = new Inventory
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@_pending = null
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return this
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craft: (name, quantity=1, have=null)->
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@clear()
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@result.addInventory(have) if have?
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@_expected.add name, quantity
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@_pending = @_expected.clone()
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while not @_pending.isEmpty
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@_processPending()
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@steps.reverse()
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# Object Overrides #############################################################################
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toString: ->
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return "#{@constructor.name} { need:#{@need}, make:#{@make}, result:#{@result} }"
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# Private Methods ##############################################################################
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_processPending: ->
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targetItem = @_pending.pop()
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return unless targetItem?
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return if @modPack.isRawMaterial targetItem.name
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recipes = @modPack.gatherRecipes targetItem.name
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return if not recipes.length > 0
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recipe = recipes[0]
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if @includingTools
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for tool in recipe.tools
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totalExpected = @result.quantityOf(tool.name) + @_expected.quantityOf(tool.name)
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if totalExpected < tool.quantity
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@_pending.add tool.name, tool.quantity
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@_expected.add tool.name, tool.quantity
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while @_totalQuantityOf(targetItem.name) < @_expected.quantityOf(targetItem.name)
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@steps.push recipe
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for item in recipe.input
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@_processInputItem item
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for item in recipe.output
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@_processOutputItem item
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_processInputItem: (item)->
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quantityAvailable = @result.quantityOf item.name
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quantityUsed = Math.min quantityAvailable, item.quantity
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quantityNeeded = item.quantity - quantityUsed
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@result.remove item.name, quantityUsed
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@_pending.add item.name, quantityNeeded
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@need.add item.name, quantityNeeded
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_processOutputItem: (item)->
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quantityMissing = @need.quantityOf item.name
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quantityUsed = Math.min quantityMissing, item.quantity
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quantityLeft = item.quantity - quantityUsed
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@make.add item.name, item.quantity
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@need.remove item.name, quantityUsed
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@result.add item.name, quantityLeft
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_totalQuantityOf: (name)->
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return @result.quantityOf(name) - @need.quantityOf(name)
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