Class: Amaze::Factory

Inherits:
Object
  • Object
show all
Defined in:
lib/amaze/factory.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(type) ⇒ Factory

Returns a new instance of Factory.



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# File 'lib/amaze/factory.rb', line 14

def initialize type
  raise "#{type} maze is not supported" unless self.class.types.include? type
  @type = type
end

Instance Attribute Details

#type ⇒ Object (readonly)

The type of the grid



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# File 'lib/amaze/factory.rb', line 12

def type
  @type
end

Class Method Details

.algorithms ⇒ Object

All known algorithms



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# File 'lib/amaze/factory.rb', line 60

def self.algorithms
  %i( bt sw ab gt1 gt2 gt3 gt4 w hk rb1 rb2 )
end

.gradient_maps ⇒ Object 



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# File 'lib/amaze/factory.rb', line 107

def self.gradient_maps
  %i( red green blue monochrome cold warm gold )
end

.shapes ⇒ Object

All known shapes



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# File 'lib/amaze/factory.rb', line 41

def self.shapes
  %i( triangle diamond hexagon star )
end

.types ⇒ Object

All known maze types



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# File 'lib/amaze/factory.rb', line 7

def self.types
  %i( delta ortho sigma upsilon polar )
end

Instance Method Details

#create_algorithm(algorithm) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 64

def create_algorithm algorithm
  raise "#{algorithm} is not supported" unless self.class.algorithms.include? algorithm
  
  # Alogrithms for all mazes
  select = {
    ab:  Amaze::Algorithm::AldousBorder,
    gt1: Amaze::Algorithm::GrowingTree,
    gt2: Amaze::Algorithm::GrowingTree,
    gt3: Amaze::Algorithm::GrowingTree,
    gt4: Amaze::Algorithm::GrowingTree,
    w:   Amaze::Algorithm::Wilson,
    hk:  Amaze::Algorithm::HuntAndKill,
    rb1: Amaze::Algorithm::RecursiveBacktracker,
    rb2: Amaze::Algorithm::RecursiveBacktracker,
  }
  
  # Algorithms only for ortho mazes
  select.merge!(
    bt: Amaze::Algorithm::BinaryTree,
    sw: Amaze::Algorithm::Sidewinder
  ) if type == :ortho
  
  raise "Alogrithm not supported on #{type} maze." unless select[algorithm]
  instance = select[algorithm].new

  case algorithm
  when :gt1
    instance.configure "last from list", proc {|active| active.last }
  when :gt2
    instance.configure "random from list", proc {|active| active.sample }
  when :gt3
    instance.configure "last/random 1/1 from list", proc {|active| (rand(2) > 0) ? active.last : active.sample }
  when :gt4
    instance.configure "last/random 2/1 from list", proc {|active| (rand(3) > 0) ? active.last : active.sample }
  when :rb1
    instance.configure :stack
  when :rb2
    instance.configure :recursion
  end
  
  instance 
end

#create_ascii_formatter(*args) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 51

def create_ascii_formatter *args
  Amaze::Formatter::ASCII.const_get(type.to_s.capitalize).new *args
end

#create_grid(*args) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 19

def create_grid *args
  Amaze::Grid.const_get(type.to_s.capitalize).new *args
end

#create_image_formatter(*args) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 55

def create_image_formatter *args
  Amaze::Formatter::Image.const_get(type.to_s.capitalize).new *args
end

#create_mask(file) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 29

def create_mask file
  case File.extname file
  when '.txt'
    Amaze::Mask.from_txt file
  when '.png'
    Amaze::Mask.from_png file
  else
    raise "Mask file of type #{File.extname(file)} is not supported."
  end
end

#create_masked_grid(file) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 23

def create_masked_grid file
  klass = Amaze::Grid.const_get(type.to_s.capitalize)
  klass.prepend Amaze::MaskedGrid
  klass.new create_mask(file)
end

#create_shaped_grid(shape, *args) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 45

def create_shaped_grid shape, *args
  klass = Amaze::Grid.const_get(type.to_s.capitalize)
  klass.prepend Amaze::MaskedGrid
  klass.new Amaze::Shape.const_get(shape.to_s.capitalize).new(args.first).create_mask
end

#gradient_map(name = :green) ⇒ Object 



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# File 'lib/amaze/factory.rb', line 111

def gradient_map name=:green
  { red:
      Gradient::Map.new(
        Gradient::Point.new(0, Color::RGB.new( 95,   0,   0), 1.0), # dark red
        Gradient::Point.new(1, Color::RGB.new(255, 255, 255), 1.0), # white
      ),
    green:
      Gradient::Map.new(
        Gradient::Point.new(0, Color::RGB.new(  0,  95,   0), 1.0), # dark green
        Gradient::Point.new(1, Color::RGB.new(255, 255, 255), 1.0), # white
      ),
    blue:
      Gradient::Map.new(
        Gradient::Point.new(0, Color::RGB.new(  0,   0,  95), 1.0), # dark blue
        Gradient::Point.new(1, Color::RGB.new(255, 255, 255), 1.0), # white
      ),
    monochrome: 
      Gradient::Map.new(
        Gradient::Point.new(0, Color::RGB.new(  0,   0,   0), 1.0), # black
        Gradient::Point.new(1, Color::RGB.new(255, 255, 255), 1.0), # white
      ),
    cold: 
      Gradient::Map.new(
        Gradient::Point.new(0,    Color::RGB.new(  0,   0,  95), 1.0), # blue
        Gradient::Point.new(0.65, Color::RGB.new(  0, 191, 255), 1.0), # cyan
        Gradient::Point.new(1,    Color::RGB.new(255, 255, 255), 1.0), # white
      ),
    warm: 
      Gradient::Map.new(
        Gradient::Point.new(0,    Color::RGB.new( 95,   0,   0), 1.0), # dark red
        Gradient::Point.new(0.65, Color::RGB.new(255, 191,   0), 1.0), # yellow
        Gradient::Point.new(1,    Color::RGB.new(255, 255, 255), 1.0), # white
      ),
    gold:
      Gradient::Map.new(
        Gradient::Point.new(0,    Color::RGB.new(127,   0,   0), 1.0), # dark red
        Gradient::Point.new(0.5,  Color::RGB.new(255, 127,   0), 1.0), # light red yellow
        Gradient::Point.new(0.75, Color::RGB.new(255, 255,   0), 1.0), # yellow
        Gradient::Point.new(1,    Color::RGB.new(255, 255, 255), 1.0), # white
      ),
  }[name]
end