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# triangle.rb
module Ruby2D
class Triangle
include Renderable
attr_accessor :x1, :y1, :c1,
:x2, :y2, :c2,
:x3, :y3, :c3
attr_reader :color, :type_id
def initialize(x1=50, y1=0, x2=100, y2=100, x3=0, y3=100, c='white', z=0)
@type_id = 1
@x1, @y1 = x1, y1
@x2, @y2 = x2, y2
@x3, @y3 = x3, y3
@z = z
self.color = c
add
end
def color=(c)
@color = Color.from(c)
update_color(@color)
end
private
def update_color(c)
if c.is_a? Color::Set
if c.length == 3
@c1 = c[0]
@c2 = c[1]
@c3 = c[2]
else
raise ArgumentError, "Triangles require 3 colors, one for each vertex. #{c.length} were given."
end
else
@c1 = c
@c2 = c
@c3 = c
end
end
end
end
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