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-rw-r--r--src/newgrf_canal.cpp2
-rw-r--r--src/newgrf_cargo.cpp4
-rw-r--r--src/newgrf_engine.cpp10
-rw-r--r--src/newgrf_generic.cpp2
-rw-r--r--src/newgrf_house.cpp6
-rw-r--r--src/newgrf_industries.cpp6
-rw-r--r--src/newgrf_industrytiles.cpp6
-rw-r--r--src/newgrf_spritegroup.cpp55
-rw-r--r--src/newgrf_spritegroup.h30
-rw-r--r--src/newgrf_station.cpp2
10 files changed, 67 insertions, 56 deletions
diff --git a/src/newgrf_canal.cpp b/src/newgrf_canal.cpp
index 20355c899..9bfe41017 100644
--- a/src/newgrf_canal.cpp
+++ b/src/newgrf_canal.cpp
@@ -96,7 +96,7 @@ SpriteID GetCanalSprite(CanalFeature feature, TileIndex tile)
NewCanalResolver(&object, tile, _water_feature[feature].grffile);
- group = Resolve(_water_feature[feature].group, &object);
+ group = SpriteGroup::Resolve(_water_feature[feature].group, &object);
if (group == NULL) return 0;
return group->GetResult();
diff --git a/src/newgrf_cargo.cpp b/src/newgrf_cargo.cpp
index 95f560edc..843c2ea6f 100644
--- a/src/newgrf_cargo.cpp
+++ b/src/newgrf_cargo.cpp
@@ -74,7 +74,7 @@ SpriteID GetCustomCargoSprite(const CargoSpec *cs)
NewCargoResolver(&object, cs);
- group = Resolve(cs->group, &object);
+ group = SpriteGroup::Resolve(cs->group, &object);
if (group == NULL) return 0;
return group->GetResult();
@@ -91,7 +91,7 @@ uint16 GetCargoCallback(CallbackID callback, uint32 param1, uint32 param2, const
object.callback_param1 = param1;
object.callback_param2 = param2;
- group = Resolve(cs->group, &object);
+ group = SpriteGroup::Resolve(cs->group, &object);
if (group == NULL) return CALLBACK_FAILED;
return group->GetCallbackResult();
diff --git a/src/newgrf_engine.cpp b/src/newgrf_engine.cpp
index 4643488b1..087877058 100644
--- a/src/newgrf_engine.cpp
+++ b/src/newgrf_engine.cpp
@@ -912,7 +912,7 @@ SpriteID GetCustomEngineSprite(EngineID engine, const Vehicle *v, Direction dire
NewVehicleResolver(&object, engine, v);
- group = Resolve(GetVehicleSpriteGroup(engine, v), &object);
+ group = SpriteGroup::Resolve(GetVehicleSpriteGroup(engine, v), &object);
if (group == NULL || group->GetNumResults() == 0) return 0;
return group->GetResult() + (direction % group->GetNumResults());
@@ -934,7 +934,7 @@ SpriteID GetRotorOverrideSprite(EngineID engine, const Aircraft *v, bool info_vi
object.info_view = info_view;
const SpriteGroup *group = GetWagonOverrideSpriteSet(engine, CT_DEFAULT, engine);
- group = Resolve(group, &object);
+ group = SpriteGroup::Resolve(group, &object);
if (group == NULL || group->GetNumResults() == 0) return 0;
@@ -975,7 +975,7 @@ uint16 GetVehicleCallback(CallbackID callback, uint32 param1, uint32 param2, Eng
object.callback_param1 = param1;
object.callback_param2 = param2;
- group = Resolve(GetVehicleSpriteGroup(engine, v, false), &object);
+ group = SpriteGroup::Resolve(GetVehicleSpriteGroup(engine, v, false), &object);
if (group == NULL) return CALLBACK_FAILED;
return group->GetCallbackResult();
@@ -1004,7 +1004,7 @@ uint16 GetVehicleCallbackParent(CallbackID callback, uint32 param1, uint32 param
object.u.vehicle.parent = parent;
- group = Resolve(GetVehicleSpriteGroup(engine, v, false), &object);
+ group = SpriteGroup::Resolve(GetVehicleSpriteGroup(engine, v, false), &object);
if (group == NULL) return CALLBACK_FAILED;
return group->GetCallbackResult();
@@ -1043,7 +1043,7 @@ static void DoTriggerVehicle(Vehicle *v, VehicleTrigger trigger, byte base_rando
object.callback = CBID_RANDOM_TRIGGER;
object.trigger = trigger;
- group = Resolve(GetVehicleSpriteGroup(v->engine_type, v), &object);
+ group = SpriteGroup::Resolve(GetVehicleSpriteGroup(v->engine_type, v), &object);
if (group == NULL) return;
new_random_bits = Random();
diff --git a/src/newgrf_generic.cpp b/src/newgrf_generic.cpp
index 0ca9fba77..aa5ee0c22 100644
--- a/src/newgrf_generic.cpp
+++ b/src/newgrf_generic.cpp
@@ -139,7 +139,7 @@ static uint16 GetGenericCallbackResult(uint8 feature, ResolverObject *object, co
/* Test each feature callback sprite group. */
for (GenericCallbackList::const_iterator it = _gcl[feature].begin(); it != _gcl[feature].end(); ++it) {
const SpriteGroup *group = it->group;
- group = Resolve(group, object);
+ group = SpriteGroup::Resolve(group, object);
if (group == NULL) continue;
/* Return NewGRF file if necessary */
diff --git a/src/newgrf_house.cpp b/src/newgrf_house.cpp
index f49da4603..f1585f97e 100644
--- a/src/newgrf_house.cpp
+++ b/src/newgrf_house.cpp
@@ -354,7 +354,7 @@ uint16 GetHouseCallback(CallbackID callback, uint32 param1, uint32 param2, House
object.callback_param1 = param1;
object.callback_param2 = param2;
- group = Resolve(GetHouseSpecs(house_id)->spritegroup, &object);
+ group = SpriteGroup::Resolve(GetHouseSpecs(house_id)->spritegroup, &object);
if (group == NULL) return CALLBACK_FAILED;
return group->GetCallbackResult();
@@ -422,7 +422,7 @@ void DrawNewHouseTile(TileInfo *ti, HouseID house_id)
NewHouseResolver(&object, house_id, ti->tile, GetTownByTile(ti->tile));
- group = Resolve(hs->spritegroup, &object);
+ group = SpriteGroup::Resolve(hs->spritegroup, &object);
if (group == NULL || group->type != SGT_TILELAYOUT) {
/* XXX: This is for debugging purposes really, and shouldn't stay. */
DrawGroundSprite(SPR_SHADOW_CELL, PAL_NONE);
@@ -601,7 +601,7 @@ static void DoTriggerHouse(TileIndex tile, HouseTrigger trigger, byte base_rando
object.callback = CBID_RANDOM_TRIGGER;
object.trigger = trigger;
- const SpriteGroup *group = Resolve(hs->spritegroup, &object);
+ const SpriteGroup *group = SpriteGroup::Resolve(hs->spritegroup, &object);
if (group == NULL) return;
byte new_random_bits = Random();
diff --git a/src/newgrf_industries.cpp b/src/newgrf_industries.cpp
index a17f004de..10ae618fe 100644
--- a/src/newgrf_industries.cpp
+++ b/src/newgrf_industries.cpp
@@ -387,7 +387,7 @@ uint16 GetIndustryCallback(CallbackID callback, uint32 param1, uint32 param2, In
object.callback_param1 = param1;
object.callback_param2 = param2;
- group = Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
+ group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
if (group == NULL) return CALLBACK_FAILED;
return group->GetCallbackResult();
@@ -461,7 +461,7 @@ bool CheckIfCallBackAllowsCreation(TileIndex tile, IndustryType type, uint itspe
object.callback = CBID_INDUSTRY_LOCATION;
_industry_creation_random_bits = seed;
- group = Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
+ group = SpriteGroup::Resolve(GetIndustrySpec(type)->grf_prop.spritegroup, &object);
/* Unlike the "normal" cases, not having a valid result means we allow
* the building of the industry, as that's how it's done in TTDP. */
@@ -531,7 +531,7 @@ void IndustryProductionCallback(Industry *ind, int reason)
}
SB(object.callback_param2, 8, 16, loop);
- const SpriteGroup *tgroup = Resolve(spec->grf_prop.spritegroup, &object);
+ const SpriteGroup *tgroup = SpriteGroup::Resolve(spec->grf_prop.spritegroup, &object);
if (tgroup == NULL || tgroup->type != SGT_INDUSTRY_PRODUCTION) break;
const IndustryProductionSpriteGroup *group = (const IndustryProductionSpriteGroup *)tgroup;
diff --git a/src/newgrf_industrytiles.cpp b/src/newgrf_industrytiles.cpp
index 86a6a8222..89c4a0279 100644
--- a/src/newgrf_industrytiles.cpp
+++ b/src/newgrf_industrytiles.cpp
@@ -221,7 +221,7 @@ uint16 GetIndustryTileCallback(CallbackID callback, uint32 param1, uint32 param2
object.callback_param1 = param1;
object.callback_param2 = param2;
- group = Resolve(GetIndustryTileSpec(gfx_id)->grf_prop.spritegroup, &object);
+ group = SpriteGroup::Resolve(GetIndustryTileSpec(gfx_id)->grf_prop.spritegroup, &object);
if (group == NULL || group->type != SGT_CALLBACK) return CALLBACK_FAILED;
return group->GetCallbackResult();
@@ -245,7 +245,7 @@ bool DrawNewIndustryTile(TileInfo *ti, Industry *i, IndustryGfx gfx, const Indus
NewIndustryTileResolver(&object, gfx, ti->tile, i);
- group = Resolve(inds->grf_prop.spritegroup, &object);
+ group = SpriteGroup::Resolve(inds->grf_prop.spritegroup, &object);
if (group == NULL || group->type != SGT_TILELAYOUT) {
return false;
} else {
@@ -416,7 +416,7 @@ static void DoTriggerIndustryTile(TileIndex tile, IndustryTileTrigger trigger, I
object.callback = CBID_RANDOM_TRIGGER;
object.trigger = trigger;
- const SpriteGroup *group = Resolve(itspec->grf_prop.spritegroup, &object);
+ const SpriteGroup *group = SpriteGroup::Resolve(itspec->grf_prop.spritegroup, &object);
if (group == NULL) return;
byte new_random_bits = Random();
diff --git a/src/newgrf_spritegroup.cpp b/src/newgrf_spritegroup.cpp
index 03fa75f90..f6dc2aa13 100644
--- a/src/newgrf_spritegroup.cpp
+++ b/src/newgrf_spritegroup.cpp
@@ -121,23 +121,23 @@ static U EvalAdjustT(const DeterministicSpriteGroupAdjust *adjust, ResolverObjec
}
-static inline const SpriteGroup *ResolveVariable(const DeterministicSpriteGroup *group, ResolverObject *object)
+const SpriteGroup *DeterministicSpriteGroup::Resolve(ResolverObject *object) const
{
uint32 last_value = 0;
uint32 value = 0;
uint i;
- object->scope = group->var_scope;
+ object->scope = this->var_scope;
- for (i = 0; i < group->num_adjusts; i++) {
- DeterministicSpriteGroupAdjust *adjust = &group->adjusts[i];
+ for (i = 0; i < this->num_adjusts; i++) {
+ DeterministicSpriteGroupAdjust *adjust = &this->adjusts[i];
/* Try to get the variable. We shall assume it is available, unless told otherwise. */
bool available = true;
if (adjust->variable == 0x7E) {
ResolverObject subobject = *object;
subobject.procedure_call = true;
- const SpriteGroup *subgroup = Resolve(adjust->subroutine, &subobject);
+ const SpriteGroup *subgroup = SpriteGroup::Resolve(adjust->subroutine, &subobject);
if (subgroup == NULL) {
value = CALLBACK_FAILED;
} else {
@@ -150,10 +150,10 @@ static inline const SpriteGroup *ResolveVariable(const DeterministicSpriteGroup
if (!available) {
/* Unsupported property: skip further processing and return either
* the group from the first range or the default group. */
- return Resolve(group->num_ranges > 0 ? group->ranges[0].group : group->default_group, object);
+ return SpriteGroup::Resolve(this->num_ranges > 0 ? this->ranges[0].group : this->default_group, object);
}
- switch (group->size) {
+ switch (this->size) {
case DSG_SIZE_BYTE: value = EvalAdjustT<uint8, int8> (adjust, object, last_value, value); break;
case DSG_SIZE_WORD: value = EvalAdjustT<uint16, int16>(adjust, object, last_value, value); break;
case DSG_SIZE_DWORD: value = EvalAdjustT<uint32, int32>(adjust, object, last_value, value); break;
@@ -164,7 +164,7 @@ static inline const SpriteGroup *ResolveVariable(const DeterministicSpriteGroup
object->last_value = last_value;
- if (group->num_ranges == 0) {
+ if (this->num_ranges == 0) {
/* nvar == 0 is a special case -- we turn our value into a callback result */
if (value != CALLBACK_FAILED) value = GB(value, 0, 15);
static CallbackResultSpriteGroup nvarzero(0);
@@ -172,34 +172,34 @@ static inline const SpriteGroup *ResolveVariable(const DeterministicSpriteGroup
return &nvarzero;
}
- for (i = 0; i < group->num_ranges; i++) {
- if (group->ranges[i].low <= value && value <= group->ranges[i].high) {
- return Resolve(group->ranges[i].group, object);
+ for (i = 0; i < this->num_ranges; i++) {
+ if (this->ranges[i].low <= value && value <= this->ranges[i].high) {
+ return SpriteGroup::Resolve(this->ranges[i].group, object);
}
}
- return Resolve(group->default_group, object);
+ return SpriteGroup::Resolve(this->default_group, object);
}
-static inline const SpriteGroup *ResolveRandom(const RandomizedSpriteGroup *group, ResolverObject *object)
+const SpriteGroup *RandomizedSpriteGroup::Resolve(ResolverObject *object) const
{
uint32 mask;
byte index;
- object->scope = group->var_scope;
- object->count = group->count;
+ object->scope = this->var_scope;
+ object->count = this->count;
if (object->trigger != 0) {
/* Handle triggers */
/* Magic code that may or may not do the right things... */
byte waiting_triggers = object->GetTriggers(object);
- byte match = group->triggers & (waiting_triggers | object->trigger);
- bool res = (group->cmp_mode == RSG_CMP_ANY) ? (match != 0) : (match == group->triggers);
+ byte match = this->triggers & (waiting_triggers | object->trigger);
+ bool res = (this->cmp_mode == RSG_CMP_ANY) ? (match != 0) : (match == this->triggers);
if (res) {
waiting_triggers &= ~match;
- object->reseed |= (group->num_groups - 1) << group->lowest_randbit;
+ object->reseed |= (this->num_groups - 1) << this->lowest_randbit;
} else {
waiting_triggers |= object->trigger;
}
@@ -207,23 +207,14 @@ static inline const SpriteGroup *ResolveRandom(const RandomizedSpriteGroup *grou
object->SetTriggers(object, waiting_triggers);
}
- mask = (group->num_groups - 1) << group->lowest_randbit;
- index = (object->GetRandomBits(object) & mask) >> group->lowest_randbit;
+ mask = (this->num_groups - 1) << this->lowest_randbit;
+ index = (object->GetRandomBits(object) & mask) >> this->lowest_randbit;
- return Resolve(group->groups[index], object);
+ return SpriteGroup::Resolve(this->groups[index], object);
}
-/* ResolverObject (re)entry point */
-const SpriteGroup *Resolve(const SpriteGroup *group, ResolverObject *object)
+const SpriteGroup *RealSpriteGroup::Resolve(ResolverObject *object) const
{
- /* We're called even if there is no group, so quietly return nothing */
- if (group == NULL) return NULL;
-
- switch (group->type) {
- case SGT_REAL: return object->ResolveReal(object, (RealSpriteGroup *)group);
- case SGT_DETERMINISTIC: return ResolveVariable((DeterministicSpriteGroup *)group, object);
- case SGT_RANDOMIZED: return ResolveRandom((RandomizedSpriteGroup *)group, object);
- default: return group;
- }
+ return object->ResolveReal(object, this);
}
diff --git a/src/newgrf_spritegroup.h b/src/newgrf_spritegroup.h
index 13cfb19c6..e6bbeb9d3 100644
--- a/src/newgrf_spritegroup.h
+++ b/src/newgrf_spritegroup.h
@@ -50,6 +50,8 @@ extern SpriteGroupPool _spritegroup_pool;
struct SpriteGroup : SpriteGroupPool::PoolItem<&_spritegroup_pool> {
protected:
SpriteGroup(SpriteGroupType type) : type(type) {}
+ /** Base sprite group resolver */
+ virtual const SpriteGroup *Resolve(struct ResolverObject *object) const { return this; };
public:
virtual ~SpriteGroup() {}
@@ -59,6 +61,20 @@ public:
virtual SpriteID GetResult() const { return 0; }
virtual byte GetNumResults() const { return 0; }
virtual uint16 GetCallbackResult() const { return CALLBACK_FAILED; }
+
+ /**
+ * ResolverObject (re)entry point.
+ * This cannot be made a call to a virtual function because virtual functions
+ * do not like NULL and checking for NULL *everywhere* is more cumbersome than
+ * this little helper function.
+ * @param group the group to resolve for
+ * @param object information needed to resolve the group
+ * @return the resolved group
+ */
+ static const SpriteGroup *Resolve(const SpriteGroup *group, ResolverObject *object)
+ {
+ return group == NULL ? NULL : group->Resolve(object);
+ }
};
@@ -79,6 +95,9 @@ struct RealSpriteGroup : SpriteGroup {
byte num_loading; ///< Number of loading groups
const SpriteGroup **loaded; ///< List of loaded groups (can be SpriteIDs or Callback results)
const SpriteGroup **loading; ///< List of loading groups (can be SpriteIDs or Callback results)
+
+protected:
+ const SpriteGroup *Resolve(ResolverObject *object) const;
};
/* Shared by deterministic and random groups. */
@@ -159,6 +178,9 @@ struct DeterministicSpriteGroup : SpriteGroup {
/* Dynamically allocated, this is the sole owner */
const SpriteGroup *default_group;
+
+protected:
+ const SpriteGroup *Resolve(ResolverObject *object) const;
};
enum RandomizedSpriteGroupCompareMode {
@@ -180,6 +202,9 @@ struct RandomizedSpriteGroup : SpriteGroup {
byte num_groups; ///< must be power of 2
const SpriteGroup **groups; ///< Take the group with appropriate index:
+
+protected:
+ const SpriteGroup *Resolve(ResolverObject *object) const;
};
@@ -316,9 +341,4 @@ struct ResolverObject {
ResolverObject() : procedure_call(false) { }
};
-
-/* Base sprite group resolver */
-const SpriteGroup *Resolve(const SpriteGroup *group, ResolverObject *object);
-
-
#endif /* NEWGRF_SPRITEGROUP_H */
diff --git a/src/newgrf_station.cpp b/src/newgrf_station.cpp
index 81ce36c2e..eb2598c27 100644
--- a/src/newgrf_station.cpp
+++ b/src/newgrf_station.cpp
@@ -633,7 +633,7 @@ static const SpriteGroup *ResolveStation(ResolverObject *object)
/* Invalidate all cached vars */
_svc.valid = 0;
- return Resolve(group, object);
+ return SpriteGroup::Resolve(group, object);
}
SpriteID GetCustomStationRelocation(const StationSpec *statspec, const Station *st, TileIndex tile)
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-21 09:35:47 +0000