Class: Blender3d::FileHeader

Inherits:
Object
  • Object
show all
Defined in:
lib/blender-3d/file_header.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(file = nil) ⇒ FileHeader

Returns a new instance of FileHeader.


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# File 'lib/blender-3d/file_header.rb', line 9

def initialize(file = nil)
  deserialize(file) if file
end

Instance Attribute Details

#endian_code ⇒ Object (readonly)

Returns the value of attribute endian_code.


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# File 'lib/blender-3d/file_header.rb', line 6

def endian_code
  @endian_code
end

#endianness ⇒ Object

Returns the value of attribute endianness.


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# File 'lib/blender-3d/file_header.rb', line 6

def endianness
  @endianness
end

#identifier ⇒ Object

Returns the value of attribute identifier.


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# File 'lib/blender-3d/file_header.rb', line 3

def identifier
  @identifier
end

#pointer_size ⇒ Object

Returns the value of attribute pointer_size.


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# File 'lib/blender-3d/file_header.rb', line 6

def pointer_size
  @pointer_size
end

#size_code ⇒ Object (readonly)

Returns the value of attribute size_code.


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# File 'lib/blender-3d/file_header.rb', line 6

def size_code
  @size_code
end

#version ⇒ Object

Returns the value of attribute version.


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# File 'lib/blender-3d/file_header.rb', line 3

def version
  @version
end

Instance Method Details

#big_endian? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/blender-3d/file_header.rb', line 35

def big_endian?
  !little_endian?
end

#deserialize(file) ⇒ Object 


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# File 'lib/blender-3d/file_header.rb', line 13

def deserialize(file)
  self.identifier = file.read(7)
  self.pointer_size = file.read(1) == '-'.freeze ? 8 : 4
  self.endianness = file.read(1) == 'v'.freeze ? :little : :big
  self.version = file.read(1) + '.'.freeze + file.read(2)
  self
end

#little_endian? ⇒ Boolean

Returns:

  • (Boolean) 

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# File 'lib/blender-3d/file_header.rb', line 31

def little_endian?
  @endianness == :little
end