Class: FlameChannelParser::Parser2012::ModernKey

Inherits:

Struct

• Object
• Struct
• FlameChannelParser::Parser2012::ModernKey

show all

Defined in:

lib/parser_2012.rb

Instance Attribute Summary (collapse)

• - (Object) break_slope

  Returns the value of attribute break_slope.

• - (Object) curve_mode

  Returns the value of attribute curve_mode.

• - (Object) curve_order

  Returns the value of attribute curve_order.

• - (Object) frame

  Returns the value of attribute frame.

• - (Object) l_handle_x

  Returns the value of attribute l_handle_x.

• - (Object) l_handle_y

  Returns the value of attribute l_handle_y.

• - (Object) r_handle_x

  Returns the value of attribute r_handle_x.

• - (Object) r_handle_y

  Returns the value of attribute r_handle_y.

• - (Object) value

  Returns the value of attribute value.

Instance Method Summary (collapse)

• - (Boolean) broken?
• - (Object) interpolation

  Adapter for old interpolation.

• - (Object) left_slope

  Compute pre-212 slope which we use for interpolations.

• - (Object) right_slope

  Compute pre-212 slope which we use for interpolations.

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# File 'lib/parser_2012.rb', line 7

def break_slope
  @break_slope
end

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# File 'lib/parser_2012.rb', line 7

def curve_mode
  @curve_mode
end

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# File 'lib/parser_2012.rb', line 7

def curve_order
  @curve_order
end

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# File 'lib/parser_2012.rb', line 7

def frame
  @frame
end

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# File 'lib/parser_2012.rb', line 7

def l_handle_x
  @l_handle_x
end

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# File 'lib/parser_2012.rb', line 7

def l_handle_y
  @l_handle_y
end

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# File 'lib/parser_2012.rb', line 7

def r_handle_x
  @r_handle_x
end

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# File 'lib/parser_2012.rb', line 7

def r_handle_y
  @r_handle_y
end

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# File 'lib/parser_2012.rb', line 7

def value
  @value
end

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# File 'lib/parser_2012.rb', line 36

def broken?
  break_slope
end

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# File 'lib/parser_2012.rb', line 11

def interpolation
  return :constant if curve_order.to_s == "constant"
  return :hermite if curve_order.to_s == "cubic" && (curve_mode.to_s == "hermite" || curve_mode.to_s == "natural")
  return :bezier if curve_order.to_s == "cubic" && curve_mode.to_s == "bezier"
  return :linear if curve_order.to_s == "linear"
  
  raise "Cannot determine interpolation for #{self.inspect}"
end

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# File 'lib/parser_2012.rb', line 21

def left_slope
  return right_slope unless broken?
  
  dy = value - l_handle_y
  dx = l_handle_x - frame
  dy / dx  * -1
end

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# File 'lib/parser_2012.rb', line 30

def right_slope
  dy = value - r_handle_y
  dx = frame - r_handle_x
  dy / dx
end