Wesnoth 1.1.2a: augmented variable deletion macros

[zaimoni]

Upon experimentation, I found that the clear_variable tag in Wesnoth 1.1.2a
* only clears true variables, not key-value pairs. e.g., will clear xfactions.variable but not xfactions
* only does one entry of an array at a time.

The first point is definitely not true for Wesnoth 1.0.2. I haven't tested the second point yet in 1.0.2 (easiest way would be to play HTTT through scenario Crossing, then look at the savefile), but suspect the Wiki is also correct on this for 1.0.2.

So, two macros to assist in getting clean savefiles in Wesnoth 1.1.2a:

Code: Select all

#define FLUSHARRAY VAR
	{VARIABLE_OP random to_variable {VAR}.length}
	[while]
        [variable]
        name=random
        greater_than=0
        [/variable]
        [do]
		{CLEAR_VARIABLE {VAR}}
		[set_variable]
		name=random
		add=-1
		[/set_variable]
		[/do]
	[/while]
	{CLEAR_VARIABLE random}
#enddef

#define CLEAR_KEY_VALUE VAR
	{VARIABLE ({VAR}.variable) {VAR}}
	{CLEAR_VARIABLE {VAR}}
#enddef

They respectively remove an entire array, and a key-value pair.

EDIT: looks like this rated a bug report:
https://gna.org/bugs/?func=detailitem&item_id=6148

Fixed in 1.1.7.[/url]