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Size

If a function receives a size as an argument it could be several things:

  1. You can specify two parameters width, height directly as arguments of the function. E.g. sprite:resize(64, 32)
  2. You can specify an object with width and height properties. E.g. sprite:resize{ width=64, height=32 }
  3. You can specify an array two elements: E.g. sprite:resize{ 64, 32 }
  4. You can specify a Size instance: E.g. sprite:resize(Size(64, 32))

Size() 

Size()
Size(otherSize)
Size(width, height)
Size{width=number, height=number}
Size{w=number, h=number}
Size{number, number}

Creates a new Size instance with the given dimensions (or width=height=0 if they are not specified).

Size.width 

local width = size.width
size.width = newWidth

Size.height 

local height = size.height
size.height = newHeight

Size.w

Same as Size.width.

Size.h

Same as Size.height.

Size:union() 

local newSize = size:union(otherSize)

Returns the new size newSize which will be big enough to contains both given dimensions (size and otherSize).