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Galeon/1.3.20
IP: 128.83.113.38
URI: http://wesnoth.slack.it/?CaseBasedReasoningA
- - - - -
Use this to make deeply nested if-then-else logic look slightly more like a
case statement. (If you can figure out a way
to get rid of all the CLOSEs, replace this code with yours!)
||Example of Use||
The unit drinks an unidentified potion, and it's effect is...
{RANDOM
Strength,Agility,Haste,Experience,Health,Nightstealth,Sloth,Poison,Petrification}
{IF_RANDOM_EQ Strength}
{QUAFF_POTION_OF_STRENGTH {LEVEL}}
{ELSE_IF_RANDOM_EQ Agility}
{QUAFF_POTION_OF_AGILITY {LEVEL}}
{ELSE_IF_RANDOM_EQ Haste}
{QUAFF_POTION_OF_HASTE {LEVEL}}
{ELSE_IF_RANDOM_EQ Experience}
{QUAFF_POTION_OF_EXPERIENCE {LEVEL}}
{ELSE_IF_RANDOM_EQ Health}
{QUAFF_POTION_OF_HEALTH {LEVEL}}
{ELSE_IF_RANDOM_EQ Nightstealth}
{QUAFF_POTION_OF_NIGHTSTEALTH {LEVEL}}
{ELSE_IF_RANDOM_EQ Sloth}
{QUAFF_POTION_OF_SLOTH {LEVEL}}
{ELSE_IF_RANDOM_EQ Poison}
{QUAFF_POISON {LEVEL}}
{ELSE_IF_RANDOM_EQ Petrification}
{QUAFF_POTION_OF_PETRIFICATION {LEVEL}}
[/then] # I suppose you could use a macro here, but it's only
[/if] # two lines, no matter how many cases you have.
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
{CLOSE_ELSE_IF}
This could have been named CASE or such, but contrast its logic with
CaseBasedReasoningB.
||The Macro Definitions||
#===============================================================================
# Macros to make deep-nested if statements clearer:
#-------------------------------------------------------------------------------
# For testing equal-to:
#define IF_RANDOM_EQ VALUE
[if]
[variable]
name=random
equals={VALUE}
[/variable]
[then]
#enddef
#define ELSE_IF_RANDOM_EQ VALUE
[/then]
[else]
[if]
[variable]
name=random
equals={VALUE}
[/variable]
[then]
#enddef
#-------------------------------------------------------------------------------
#define CLOSE_ELSE_IF
[/else]
[/if]
#enddef
N.B. - The CLOSE_ELSE_IF macro is also used in the macros for
CaseBasedReasoningB, so if you use them both you don't
want to define it twice.
||See Also||
* CaseBasedReasoningB
* UsefulWMLFragments
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