Class: Flock

Inherits:
Object show all
Defined in:
ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Flock

Returns a new instance of Flock.



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 15

def initialize
	@members = []
end

Instance Attribute Details

#members ⇒ Object (readonly)

Returns the value of attribute members.



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 13

def members
  @members
end

Instance Method Details

#add(boid) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 19

def add(boid)
	@members << boid
	boid.flock = self
end

#centerExcluding(b) ⇒ Object

Center of mass



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 38

def centerExcluding(b)
	p = Point.new()
	@members.each { | boid |
 p.addPoint(boid.position) unless boid == b
	}
	p.divideBy(@members.length - 1)
	return p
end

#distBetween(b1, b2) ⇒ Object

Return distance between two boid’s positions.



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 33

def distBetween(b1, b2)
	return b1.position.distanceTo(b2.position)
end

#draw ⇒ Object 



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 24

def draw
	@members.each { | boid | boid.draw() }
end

#move ⇒ Object 



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# File 'ext/ruby/qtruby/examples/ruboids/ruboids/Flock.rb', line 28

def move
	@members.each { | boid | boid.move() }
end