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Galeon/1.3.20
IP: 128.83.113.38
URI: http://wesnoth.slack.it/?ProbabilityBasedBranching
- - - - -
Here is code that lets you specify a probability for doing something:
||Examples of use||
||Example 1:|| Do something common with an 85% chance, otherwise do something
uncommon. Your code doesn't have to be a
macro; I just show some bogus macros for brevity.
{PERCENT_CHANCE 85}
{YOUR_CODE_HERE} # 85% chance of being executed
{PERCENT_CHANCE_ELSE}
{YOUR_OTHER_CODE_HERE} # executed if-and-only-if the previous one
wasn't
{PERCENT_CHANCE_END}
||Example 2:|| Do something with a 37% chance, otherwise do nothing.
{PERCENT_CHANCE 37}
{YOUR_CODE_HERE} # done with an 37% chance; otherwise nothing
happens at all
{PERCENT_CHANCE_END_WITHOUT_ELSE} # notice that you have to use a different
terminator
||The Macro Definitions:||
#===============================================================================
# Macros for probability-based branching:
#-------------------------------------------------------------------------------
#define PERCENT_CHANCE PERCENT
{RANDOM 1..100}
[if]
[variable]
name=random
less_than_equal_to={PERCENT}
[/variable]
[then]
#enddef
#define PERCENT_CHANCE_ELSE
[/then]
[else]
#enddef
#define PERCENT_CHANCE_END
[/else]
[/if]
#enddef
#-------------------------------------------------------------------------------
# For when you don't want an 'else':
#define PERCENT_CHANCE_END_WITHOUT_ELSE
[/then]
[/if]
#enddef
||See Also||
* UsefulWMLFragments
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