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(svn r4740) - Newstations: add function to evaluate station callbacks

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peter1138 2006-05-04 19:27:41 +00:00
parent 4963eb80b7
commit 34668ff09d
2 changed files with 28 additions and 0 deletions
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27
newgrf_station.c
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@ -10,6 +10,7 @@
#include "table/strings.h"
#include "station.h"
#include "station_map.h"
#include "newgrf_callbacks.h"
#include "newgrf_station.h"
#include "newgrf_spritegroup.h"
@ -345,6 +346,32 @@ SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *
}
uint16 GetStationCallback(uint16 callback, uint32 param1, uint32 param2, const StationSpec *statspec, const Station *st, TileIndex tile)
{
const SpriteGroup *group;
ResolverObject object;
CargoID ctype = (st == NULL) ? GC_PURCHASE : GC_DEFAULT_NA;
NewStationResolver(&object, statspec, st, tile);
object.callback = callback;
object.callback_param1 = param1;
object.callback_param2 = param2;
group = Resolve(statspec->spritegroup[ctype], &object);
if ((group == NULL || group->type != SGT_CALLBACK) && ctype != GC_DEFAULT_NA) {
group = Resolve(statspec->spritegroup[GC_DEFAULT_NA], &object);
}
if ((group == NULL || group->type != SGT_CALLBACK) && ctype != GC_DEFAULT) {
group = Resolve(statspec->spritegroup[GC_DEFAULT], &object);
}
if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;
return group->g.callback.result;
}
/**
* Allocate a StationSpec to a Station. This is called once per build operation.
* @param spec StationSpec to allocate.

1
newgrf_station.h
View File

@ -99,6 +99,7 @@ const StationSpec *GetCustomStationSpec(StationClassID sclass, uint station);
* NULL - that means we are in a build dialog). The station structure is used
* for variational sprite groups. */
SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile);
uint16 GetStationCallback(uint16 callback, uint32 param1, uint32 param2, const StationSpec *statspec, const Station *st, TileIndex tile);
/* Allocate a StationSpec to a Station. This is called once per build operation. */
int AllocateSpecToStation(const StationSpec *statspec, Station *st, bool exec);