Class: HarvardDish

Inherits:
Object
  • Object
show all
Defined in:
lib/nutrientes/harvard_dish.rb

Constant Summary collapse

@@list = 
[OvoLacteo.new("Huevo frito", 14.1, 0.0, 19.5),
OvoLacteo.new("Leche de vaca", 3.3, 4.8, 3.2),
OvoLacteo.new("Yogurt", 3.8, 4.9, 3.8),
Carnido.new("Cerdo", 21.5, 0.0, 6.3),
Carnido.new("Ternera", 21.1, 0.0, 3.1),
Carnido.new("Pollo", 20.6, 0.0, 5.6),
Pescado.new("Bacalao", 17.7, 0.0, 0.4),
Pescado.new("Atún", 21.5, 0.0, 15.5),
Pescado.new("Salmón", 19.9, 0.0, 13.6),
Graso.new("Aceite de oliva", 0.0, 0.2, 99.6),
Graso.new("Mantequilla", 0.7, 0.0, 83.2),
Graso.new("Chocolate", 5.3, 47.0, 30.0),
Carbohidratado.new("Azúcar", 0.0, 99.8, 0.0),
Carbohidratado.new("Arroz", 6.8, 77.7, 0.6),
Carbohidratado.new("Lentejas", 23.5, 52.0, 1.4),
Carbohidratado.new("Papas", 2.0, 15.4, 0.1),
Verdura.new("Tomate", 1.0, 3.5, 0.2),
Verdura.new("Cebolla", 1.3, 5.8, 0.3),
Verdura.new("Calabaza", 1.1, 4.8, 0.1),
Fruta.new("Manzana", 0.3, 12.4, 0.4),
Fruta.new("Plátano", 1.2, 21.4, 0.2),
Fruta.new("Pera", 0.5 ,12.7, 0.3)]
@@proportions = 
[["/piezas? pequeña/",   2],
["/pieza/"          ,   4],
["/taza/"           , 0.6],
["/cuchara/"        , 0.4],
["/cuchar[o|ó]n/"   , 0.8],
["/vaso/"           , 1.2],
["/gramo/"          ,   1],
["/pizca/"          , 0.5]]

Instance Method Summary collapse

Constructor Details

#initialize(name, &block) ⇒ HarvardDish

Returns a new instance of HarvardDish.



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# File 'lib/nutrientes/harvard_dish.rb', line 41

def initialize(name, &block)
    @name = name
    @ingredients = []
    @amounts = []
    @cv_total = 0
    
    if block_given?
        if block.arity == 1 then
            yield self
        else
            instance_eval(&block)
        end
    end
end

Instance Method Details

#ingredient(nombre, cantidad) ⇒ Object 



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# File 'lib/nutrientes/harvard_dish.rb', line 68

def ingredient(nombre, cantidad)
    @@list.each_index do |i|
        if @@list[i].name == nombre then
            @ingredients << @@list[i]
            numero = /\d/.match(cantidad)
            multiplier = 0
            @@proportions.each_index do |j|
                expr = Regexp.new @@proportions[j][0]
                if expr.match(cantidad) != nil then
                    multiplier = @@proportions[j][1]
                    break;
                end
            end
            multiplier += numero[0].to_i
            @amounts << multiplier
            break
        end
    end
end

#to_s ⇒ Object 



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# File 'lib/nutrientes/harvard_dish.rb', line 56

def to_s()
    output = @name
    output << "\n#{'=' * @name.size}\n"
    output << "Nombre  Proteínas  Glúcidos  Lípidos  Valor calórico\n"
    @ingredients.each_index do |i|
        output << @ingredients[i].name << " " << @ingredients[i].proteins.to_s << " " << @ingredients[i].glucids.to_s << " " << @ingredients[i].lipids.to_s << " " << (@ingredients[i].caloric_value * @amounts[i]).to_s << "\n"
        @cv_total += (@ingredients[i].caloric_value * @amounts[i])
    end
    output << "Valor calórico total: " << @cv_total.to_s << "\n"
    return output
end