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#
# Copyright (c) 2001 by Jim Menard <jimm@io.com>
#
# Released under the same license as Ruby. See
# http://www.ruby-lang.org/en/LICENSE.txt.
#
require 'Flock'
require 'Boid'
require 'Params'
class Flock
attr_reader :members
def initialize
@members = []
end
def add(boid)
@members << boid
boid.flock = self
end
def draw
@members.each { | boid | boid.draw() }
end
def move
@members.each { | boid | boid.move() }
end
# Return distance between two boid's positions.
def distBetween(b1, b2)
return b1.position.distanceTo(b2.position)
end
# Center of mass
def centerExcluding(b)
p = Point.new()
@members.each { | boid |
p.addPoint(boid.position) unless boid == b
}
p.divideBy(@members.length - 1)
return p
end
end
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