mirror of
https://github.com/codeninjasllc/codecombat.git
synced 2024-11-23 23:58:02 -05:00
132 lines
4.4 KiB
CoffeeScript
132 lines
4.4 KiB
CoffeeScript
module.exports.clone = (obj) ->
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return obj if obj is null or typeof (obj) isnt 'object'
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temp = obj.constructor()
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for key of obj
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temp[key] = module.exports.clone(obj[key])
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temp
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module.exports.combineAncestralObject = (obj, propertyName) ->
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combined = {}
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while obj?[propertyName]
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for key, value of obj[propertyName]
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continue if combined[key]
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combined[key] = value
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if obj.__proto__
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obj = obj.__proto__
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else
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# IE has no __proto__. TODO: does this even work? At most it doesn't crash.
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obj = Object.getPrototypeOf(obj)
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combined
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module.exports.normalizeFunc = (func_thing, object) ->
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# func could be a string to a function in this class
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# or a function in its own right
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object ?= {}
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if _.isString(func_thing)
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func = object[func_thing]
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if not func
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console.error "Could not find method #{func_thing} in object", object
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return => null # always return a func, or Mediator will go boom
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func_thing = func
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return func_thing
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module.exports.hexToHSL = (hex) ->
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rgbToHsl(hexToR(hex), hexToG(hex), hexToB(hex))
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hexToR = (h) -> parseInt (cutHex(h)).substring(0, 2), 16
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hexToG = (h) -> parseInt (cutHex(h)).substring(2, 4), 16
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hexToB = (h) -> parseInt (cutHex(h)).substring(4, 6), 16
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cutHex = (h) -> (if (h.charAt(0) is '#') then h.substring(1, 7) else h)
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module.exports.hslToHex = (hsl) ->
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'#' + (toHex(n) for n in hslToRgb(hsl...)).join('')
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toHex = (n) ->
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h = Math.floor(n).toString(16)
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h = '0'+h if h.length is 1
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h
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module.exports.i18n = (say, target, language=me.get('preferredLanguage', true), fallback='en') ->
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generalResult = null
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fallbackResult = null
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fallforwardResult = null # If a general language isn't available, the first specific one will do
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matches = (/\w+/gi).exec(language)
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generalName = matches[0] if matches
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for localeName, locale of say.i18n
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continue if localeName is '-'
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if target of locale
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result = locale[target]
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else continue
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return result if localeName is language
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generalResult = result if localeName is generalName
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fallbackResult = result if localeName is fallback
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fallforwardResult = result if localeName.indexOf(language) is 0 and not fallforwardResult?
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return generalResult if generalResult?
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return fallforwardResult if fallforwardResult?
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return fallbackResult if fallbackResult?
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return say[target] if target of say
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null
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module.exports.getByPath = (target, path) ->
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throw new Error 'Expected an object to match a query against, instead got null' unless target
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pieces = path.split('.')
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obj = target
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for piece in pieces
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return undefined unless piece of obj
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obj = obj[piece]
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obj
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module.exports.isID = (id) -> _.isString(id) and id.length is 24 and id.match(/[a-f0-9]/gi)?.length is 24
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module.exports.round = _.curry (digits, n) ->
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n = +n.toFixed(digits)
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positify = (func) -> (params) -> (x) -> if x > 0 then func(params)(x) else 0
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# f(x) = ax + b
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createLinearFunc = (params) ->
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(x) -> (params.a or 1) * x + (params.b or 0)
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# f(x) = ax² + bx + c
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createQuadraticFunc = (params) ->
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(x) -> (params.a or 1) * x * x + (params.b or 1) * x + (params.c or 0)
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# f(x) = a log(b (x + c)) + d
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createLogFunc = (params) ->
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(x) -> if x > 0 then (params.a or 1) * Math.log((params.b or 1) * (x + (params.c or 0))) + (params.d or 0) else 0
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module.exports.functionCreators =
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linear: positify(createLinearFunc)
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quadratic: positify(createQuadraticFunc)
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logarithmic: positify(createLogFunc)
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# Call done with true to satisfy the 'until' goal and stop repeating func
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module.exports.keepDoingUntil = (func, wait=100, totalWait=5000) ->
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waitSoFar = 0
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(done = (success) ->
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if (waitSoFar += wait) <= totalWait and not success
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_.delay (-> func done), wait) false
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module.exports.grayscale = (imageData) ->
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d = imageData.data
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for i in [0..d.length] by 4
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r = d[i]
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g = d[i+1]
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b = d[i+2]
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v = 0.2126*r + 0.7152*g + 0.0722*b
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d[i] = d[i+1] = d[i+2] = v
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imageData
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# Deep compares l with r, with the exception that undefined values are considered equal to missing values
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# Very practical for comparing Mongoose documents where undefined is not allowed, instead fields get deleted
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module.exports.kindaEqual = compare = (l, r) ->
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if _.isObject(l) and _.isObject(r)
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for key in _.union Object.keys(l), Object.keys(r)
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return false unless compare l[key], r[key]
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return true
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else if l is r
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return true
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else
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return false
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