Module colour
Colour related functions (dlua only).
dlua
| add_colour (name, fun) | Define a new elemental colour. | 
| colour_generation_function (rand, x, y) | This function is not a member of the module, but documents the expected behaviour of the second argument to add_colour. | 
dlua
- add_colour (name, fun)
- 
    Define a new elemental colour.
    Parameters:- name string colour name
- fun colour_generation_function generation function
 
- colour_generation_function (rand, x, y)
- 
    This function is not a member of the module, but documents the expected
 behaviour of the second argument to add_colour.
    Parameters:- rand int random number between 0 and 119
- x int
- y int The coordinates of the cell to be coloured
 Returns:- 
           string
        The name of the basic colour to be used