Contents

class Bird

	include Processing::Proxy 	# mixin Processing commands

	attr_accessor :offset_x, :offset_y, :offset_z
	attr_accessor :w, :h
	attr_accessor :body_fill, :wing_fill
	attr_accessor :ang, :ang2, :ang3, :ang4
	attr_accessor :radius_x, :radius_y, :radius_z
	attr_accessor :rot_x, :rot_y, :rot_z
	attr_accessor :flap_speed
	attr_accessor :rot_speed

	def initialize(offset_x, offset_y, offset_z, w, h)

		defaults
		@offset_x, @offset_y, @offset_z = offset_x, offset_y, offset_z
		@w, @h = w, h
	end

	def defaults

		@ang, @ang2, @ang3, @ang4 = 0.0, 0.0, 0.0, 0.0
		@body_fill, @wing_fill = color(153), color(204)
		@flap_speed = 0.4
		@rot_speed = 0.1
		@radius_x, @radius_y, @radius_z = 120.0, 200.0, 700.0
	end

	def set_flight(radius_x, radius_y, radius_z, rot_x, rot_y, rot_z)
		@radius_x, @radius_y, @radius_z = radius_x, radius_y, radius_z
		@rot_x, @rot_y, @rot_z = rot_x, rot_y, rot_z
		return self  # return self means we can chain methods
	end

	def set_wing_speed(flap_speed)
		@flap_speed = flap_speed
		return self  # return self means we can chain methods
	end

	def set_rot_speed(rot_speed)
		@rot_speed = rot_speed
		return self  # return self means we can chain methods
	end

	def fly

		push_matrix

			px = sin(@ang3.radians) * @radius_x
			py = cos(@ang3.radians) * @radius_y
			pz = sin(@ang4.radians) * @radius_z

			translate @offset_x + px,
					  @offset_y + py,
					  @offset_z + pz

			rotate_x sin(@ang2.radians) * @rot_x
			rotate_y sin(@ang2.radians) * @rot_y
			rotate_z sin(@ang2.radians) * @rot_z

			fill @body_fill
			box @w/5, @h, @w/5

			fill @wing_fill

			push_matrix
				rotate_y sin(@ang.radians) * 20
				rect 0, -@h/2, @w, @h
			pop_matrix

			push_matrix
				rotate_y sin(@ang.radians) * -20
				rect -@w, -@h/2, @w, @h
			pop_matrix

			@ang += @flap_speed
			@flap_speed *= -1 if @ang > PI || @ang < -PI

			@ang2 += @rot_speed
			@ang3 += 1.25
			@ang4 += 0.55

		pop_matrix
	end

end

Version data entries

5 entries across 5 versions & 1 rubygems

Version	Path
ruby-processing-2.6.3	samples/processing_app/basics/transform/library/bird/bird.rb
ruby-processing-2.6.2	samples/processing_app/basics/transform/library/bird/bird.rb
ruby-processing-2.6.1	samples/processing_app/basics/transform/library/bird/bird.rb
ruby-processing-2.6.0	samples/processing_app/basics/transform/library/bird/bird.rb
ruby-processing-2.5.1	samples/processing_app/basics/transform/library/bird/bird.rb