Class: Coopy::SparseSheet

Inherits:
Object
  • Object
show all
Defined in:
lib/lib/coopy/sparse_sheet.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ SparseSheet

Returns a new instance of SparseSheet.



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# File 'lib/lib/coopy/sparse_sheet.rb', line 7

def initialize
  @h = @w = 0
end

Instance Method Details

#get(x, y) ⇒ Object 



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# File 'lib/lib/coopy/sparse_sheet.rb', line 31

def get(x,y)
  cursor = @row[y]
  return @zero if cursor == nil
  val = cursor[x]
  return @zero if val == nil
  val
end

#non_destructive_resize(w, h, zero) ⇒ Object 



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# File 'lib/lib/coopy/sparse_sheet.rb', line 25

def non_destructive_resize(w,h,zero)
  @w = w
  @h = h
  @zero = zero
end

#resize(w, h, zero) ⇒ Object 



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# File 'lib/lib/coopy/sparse_sheet.rb', line 20

def resize(w,h,zero)
  @row = {}
  self.non_destructive_resize(w,h,zero)
end

#set(x, y, val) ⇒ Object 



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# File 'lib/lib/coopy/sparse_sheet.rb', line 39

def set(x,y,val)
  cursor = @row[y]
  if cursor == nil 
    cursor = {}
    @row[y] = cursor
  end
  cursor[x] = val
end