Class: FpsCounter

Inherits:
Object
  • Object
show all
Defined in:
lib/lotu/fps.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(samples = 10) ⇒ FpsCounter

Returns a new instance of FpsCounter.



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# File 'lib/lotu/fps.rb', line 4

def initialize(samples = 10)
  @accum = 0.0
  @ticks = 0
  @fps = 0.0
  @samples = samples
  @objs = @actors = @input_controllers = 0
end

Instance Attribute Details

#fps ⇒ Object (readonly)

Returns the value of attribute fps.



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# File 'lib/lotu/fps.rb', line 2

def fps
  @fps
end

Instance Method Details

#draw ⇒ Object 



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# File 'lib/lotu/fps.rb', line 25

def draw
  $window.font.draw("FPS: #{to_s}", 10, 10, 0, 1.0, 1.0, 0xffffff00)
end

#to_s ⇒ Object 



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# File 'lib/lotu/fps.rb', line 29

def to_s
  "Samples: #{@samples} FPS: #{format("%.2f",@fps)} Objs: #{@objs} Acts: #{@actors} InputsCs: #{@inputs}"
end

#update(dt) ⇒ Object 



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# File 'lib/lotu/fps.rb', line 12

def update(dt)
  @ticks += 1
  @accum += dt
  if @ticks >= @samples
    @fps = @ticks/@accum
    @ticks = 0
    @accum = 0.0
    @objs = ObjectSpace.each_object.count
    @actors = ObjectSpace.each_object(Lotu::Actor).count
    @inputs = ObjectSpace.each_object(Lotu::InputController).count
  end
end