Class: ButtonColumn

Inherits:
Object
  • Object
show all
Defined in:
lib/sgl/sgl-button.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(length, dy, hy) ⇒ ButtonColumn

Returns a new instance of ButtonColumn.



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# File 'lib/sgl/sgl-button.rb', line 42

def initialize(length, dy, hy)
  @length, @dy, @hy = length, dy, hy #destination y and hide y
  @cur = 0
  @buttons = []
  @y_spring = NumSpring.new(@dy, @dy, 5, 0.6)
  make_buttons
end

Instance Attribute Details

#cur ⇒ Object

Returns the value of attribute cur.



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# File 'lib/sgl/sgl-button.rb', line 51

def cur
  @cur
end

#y_spring ⇒ Object (readonly)

Returns the value of attribute y_spring.



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# File 'lib/sgl/sgl-button.rb', line 50

def y_spring
  @y_spring
end

Instance Method Details

#draw ⇒ Object 



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# File 'lib/sgl/sgl-button.rb', line 84

def draw
  @buttons.each_index {|i|
    b = @buttons[i]
    s = (@cur == i) ? 100 : 0
    b.draw(s)
  }
end

#make_buttons ⇒ Object 



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# File 'lib/sgl/sgl-button.rb', line 53

def make_buttons
  y = @y_spring.x
  sw = 46
  w = 0
  @length.times {
    @buttons << Button.new(0, y)
    w += sw
  }
  x = -w/2
  @buttons.each {|b|
    b.x = x
    x += sw
  }
end

#move(x, y) ⇒ Object 



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# File 'lib/sgl/sgl-button.rb', line 68

def move(x, y)
  # @y_spring.target = y.abs < (768/2 - 120) ? @hy : @dy
  #if y.abs < (768/2 - 120)
  if (@dy - y).abs < 50
    @y_spring.target = @dy
  else
    @y_spring.target = @hy
  end
  @y_spring.moving = true
  @y_spring.move
  y = @y_spring.x
  @buttons.each {|b|
    b.y = y
  }
end

#onMouseDown(x, y) ⇒ Object 



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# File 'lib/sgl/sgl-button.rb', line 92

def onMouseDown(x, y)
  @buttons.each_index {|i|
    b = @buttons[i]
    if b.inside?(x, y)
	@cur = i
	return i
    end
  }
  nil
end