Class: RubyGL::Vec4

Inherits:
Object
  • Object
show all
Defined in:
lib/rubygl/math.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Vec4

Returns a new instance of Vec4.



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# File 'lib/rubygl/math.rb', line 105

def initialize()
    @data = Array.new(4, 0)
end

Instance Method Details

#+(other_vector) ⇒ Object 



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# File 'lib/rubygl/math.rb', line 109

def +(other_vector)
    new_vector = Vec4.new()
    
    for i in 0..@data.size
        new_vector[i] = @data[i] + other_vector[i]
    end
    
    new_vector
end

#-(other_vector) ⇒ Object 



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# File 'lib/rubygl/math.rb', line 119

def -(other_vector)
    new_vector = Vec4.new()
    
    for i in 0..@data.size
        new_vector[i] = @data[i] - other_vector[i]
    end
    
    new_vector
end

#[](index) ⇒ Object 



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# File 'lib/rubygl/math.rb', line 158

def [](index)
    @data[index]
end

#[]=(index, value) ⇒ Object 



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# File 'lib/rubygl/math.rb', line 162

def []=(index, value)
    @data[index] = value
end

#len ⇒ Object 



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# File 'lib/rubygl/math.rb', line 148

def len()
    sum = 0
    
    for i in 0...@data.size
        sum += @data[i] * @data[i]
    end
    
    Math::sqrt(sum)
end

#norm ⇒ Object 



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# File 'lib/rubygl/math.rb', line 137

def norm()
    new_vector = Vec2.new()
    
    for i in 0...@data.size
        new_vector[i] = @data[i]
    end
    new_vector.norm!
    
    new_vector
end

#norm! ⇒ Object 



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# File 'lib/rubygl/math.rb', line 129

def norm!()
    curr_len = self.len()
    
    for i in 0...@data.size
        @data /= curr_len
    end
end

#to_a ⇒ Object 



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# File 'lib/rubygl/math.rb', line 170

def to_a()
    self.to_ary
end

#to_ary ⇒ Object 



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# File 'lib/rubygl/math.rb', line 166

def to_ary()
    Array.new(@data)
end