Args refactoring: combine polygon, tri, and bezier args into coords

As a rule, I think it's better to group args classes together have some extra overhead of extracting unused parameters. For example, we don't *need* to extract "n" for the circle, but the ease of having logically grouped classes is better than having tons of different classes tailored to each command.

lib/squib/api/shapes.rb

@@ -1,10 +1,8 @@
 require 'squib/args/box'
 require 'squib/args/draw'
 require 'squib/args/card_range'
-require 'squib/args/tri'
-require 'squib/args/bezier'
-require 'squib/args/polygon'
 require 'squib/args/transform'
+require 'squib/args/coords'
 
 module Squib
   class Deck
@@ -59,10 +57,9 @@ module Squib
     # @api public
     def circle(opts = {})
       range  = Args::CardRange.new(opts[:range], deck_size: size)
-      opts  = {radius: 100}.merge(opts) # overriding the non-system default
-      box   = Args::Box.new(self).load!(opts, expand_by: size, layout: layout, dpi: dpi)
+      coords = Args::Coords.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
       draw   = Args::Draw.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      range.each { |i| @cards[i].circle(box[i], draw[i]) }
+      range.each { |i| @cards[i].circle(coords[i], draw[i]) }
     end
 
     # Draw an ellipse
@@ -115,8 +112,8 @@ module Squib
     def triangle(opts = {})
       range = Args::CardRange.new(opts[:range], deck_size: size)
       draw  = Args::Draw.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      tri   = Args::Tri.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      range.each { |i| @cards[i].triangle(tri[i], draw[i]) }
+      coords = Args::Coords.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
+      range.each { |i| @cards[i].triangle(coords[i], draw[i]) }
     end
 
     # Draw a line using the given coordinates
@@ -139,8 +136,8 @@ module Squib
     def line(opts = {})
       range   = Args::CardRange.new(opts[:range], deck_size: size)
       draw    = Args::Draw.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      bezier  = Args::Bezier.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      range.each { |i| @cards[i].line(bezier[i], draw[i]) }
+      coords = Args::Coords.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
+      range.each { |i| @cards[i].line(coords[i], draw[i]) }
     end
 
     # Draw a curve using the given coordinates
@@ -165,8 +162,8 @@ module Squib
     def curve(opts = {})
       range = Args::CardRange.new(opts[:range], deck_size: size)
       draw = Args::Draw.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      bezier  = Args::Bezier.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      range.each { |i| @cards[i].curve(bezier[i], draw[i]) }
+      coords = Args::Coords.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
+      range.each { |i| @cards[i].curve(coords[i], draw[i]) }
     end
 
     # Draw a star at the given x,y
@@ -190,9 +187,9 @@ module Squib
     def star(opts = {})
       range = Args::CardRange.new(opts[:range], deck_size: size)
       draw  = Args::Draw.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      poly  = Args::Polygon.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
+      coords = Args::Coords.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
       trans = Args::Transform.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      range.each { |i| @cards[i].star(poly[i], trans[i], draw[i]) }
+      range.each { |i| @cards[i].star(coords[i], trans[i], draw[i]) }
     end
 
     # Draw a regular polygon at the given x,y
@@ -216,9 +213,9 @@ module Squib
     def polygon(opts = {})
       range = Args::CardRange.new(opts[:range], deck_size: size)
       draw  = Args::Draw.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      poly  = Args::Polygon.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
+      coords = Args::Coords.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
       trans = Args::Transform.new.load!(opts, expand_by: size, layout: layout, dpi: dpi)
-      range.each { |i| @cards[i].polygon(poly[i], trans[i], draw[i]) }
+      range.each { |i| @cards[i].polygon(coords[i], trans[i], draw[i]) }
     end
 
   end

lib/squib/args/coords.rb

@@ -4,14 +4,19 @@ module Squib
   # @api private
   module Args
 
-    class Bezier
+    class Coords
       include ArgLoader
 
       def self.parameters
-        { x1: 100, y1: 100,
-          cx1: 0 , cy1: 0,
+        { x: 0,    y: 0,
+          x1: 100, y1: 100,
           x2: 150, y2: 150,
-          cx2: 0 , cy2: 0}
+          x3: 100, y3: 150,
+          cx1: 0 , cy1: 0,
+          cx2: 0 , cy2: 0,
+          inner_radius: 50, outer_radius: 100,
+          radius: 100,
+          n: 5, }
       end
 
       def self.expanding_parameters

lib/squib/args/polygon.rb

@@ -1,26 +0,0 @@
-require 'squib/args/arg_loader'
-
-module Squib
-  # @api private
-  module Args
-
-    class Polygon
-      include ArgLoader
-
-      def self.parameters
-        { x: 0, y: 0, n: 5,
-          radius: 100, inner_radius: 50, outer_radius: 100}
-      end
-
-      def self.expanding_parameters
-        parameters.keys # all of them
-      end
-
-      def self.params_with_units
-        parameters.keys # all of them
-      end
-
-    end
-
-  end
-end

lib/squib/args/tri.rb

@@ -1,27 +0,0 @@
-require 'squib/args/arg_loader'
-
-module Squib
-  # @api private
-  module Args
-
-    class Tri
-      include ArgLoader
-
-      def self.parameters
-        { x1: 100, y1: 100,
-          x2: 150, y2: 150,
-          x3: 100, y3: 150 }
-      end
-
-      def self.expanding_parameters
-        parameters.keys # all of them
-      end
-
-      def self.params_with_units
-        parameters.keys # all of them
-      end
-
-    end
-
-  end
-end