class Vamp::Graphic::Dotter
basis class for graphic implementations you have to implement :dot, :undot, :clear and :screen
Attributes
height[R]
width[R]
Public Class Methods
new(width, height)
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# File lib/vamp/graphic/dotter.rb, line 9 def initialize(width, height) @width = width @height = height clear end
Public Instance Methods
check(x, y)
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check if (x, y) is on the screen, fails if not
# File lib/vamp/graphic/dotter.rb, line 47 def check(x, y) fail "for (#{x}, #{y}}: x not in [0, #{width}[" unless (0...width) === x fail "for (#{x}, #{y}}: y not in [0, #{height}[" unless (0...height) === y end
clear()
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clear screen of all dots
# File lib/vamp/graphic/dotter.rb, line 33 def clear self end
dot(x, y)
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put dot at x, ys
# File lib/vamp/graphic/dotter.rb, line 16 def dot(x, y) check(x, y) self end
dot?(x, y)
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is there a dot at x, y
# File lib/vamp/graphic/dotter.rb, line 22 def dot?(x, y) check(x, y) end
in?(x, y)
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check if (x, y) is on the screen
# File lib/vamp/graphic/dotter.rb, line 42 def in?(x, y) (0...width) === x && (0...height) === y end
screen()
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return complete screen as string representation
# File lib/vamp/graphic/dotter.rb, line 38 def screen end
undot(x, y)
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remove dot at x, y
# File lib/vamp/graphic/dotter.rb, line 27 def undot(x, y) check(x, y) self end