Implement As and Is functions for SpriteBase

src/openrct2/peep/Peep.cpp

@@ -323,6 +323,11 @@ const bool gSpriteTypeToSlowWalkMap[] = {
 
 // clang-format on
 
+template<> bool SpriteBase::Is<Peep>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_PEEP;
+}
+
 bool rct_sprite::IsPeep() const
 {
     return peep.sprite_identifier == SPRITE_IDENTIFIER_PEEP;

src/openrct2/ride/Vehicle.cpp

@@ -726,6 +726,11 @@ static const struct
 
 // clang-format on
 
+template<> bool SpriteBase::Is<Vehicle>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_VEHICLE;
+}
+
 static bool vehicle_move_info_valid(int32_t trackSubposition, int32_t typeAndDirection, int32_t offset)
 {
     if (trackSubposition >= static_cast<int32_t>(std::size(gTrackVehicleInfo)))

src/openrct2/world/Balloon.cpp

@@ -19,6 +19,11 @@ bool rct_sprite::IsBalloon()
     return this->balloon.sprite_identifier == SPRITE_IDENTIFIER_MISC && this->balloon.type == SPRITE_MISC_BALLOON;
 }
 
+template<> bool SpriteBase::Is<Balloon>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_BALLOON;
+}
+
 Balloon* rct_sprite::AsBalloon()
 {
     Balloon* result = nullptr;

src/openrct2/world/Duck.cpp

@@ -74,6 +74,11 @@ static constexpr const uint8_t * DuckAnimations[] =
 };
 // clang-format on
 
+template<> bool SpriteBase::Is<Duck>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_DUCK;
+}
+
 bool rct_sprite::IsDuck()
 {
     return this->duck.sprite_identifier == SPRITE_IDENTIFIER_MISC && this->duck.type == SPRITE_MISC_DUCK;

src/openrct2/world/Fountain.cpp

@@ -80,6 +80,12 @@ const uint8_t _fountainPatternFlags[] = {
     FOUNTAIN_FLAG::FAST                                                    // FAST_RANDOM_CHASERS
 };
 
+template<> bool SpriteBase::Is<JumpingFountain>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC
+        && (type == SPRITE_MISC_JUMPING_FOUNTAIN_SNOW || type == SPRITE_MISC_JUMPING_FOUNTAIN_WATER);
+}
+
 void JumpingFountain::StartAnimation(const int32_t newType, const CoordsXY& newLoc, const TileElement* tileElement)
 {
     int32_t randomIndex;

src/openrct2/world/MoneyEffect.cpp

@@ -18,6 +18,11 @@
 
 static constexpr const CoordsXY _moneyEffectMoveOffset[] = { { 1, -1 }, { 1, 1 }, { -1, 1 }, { -1, -1 } };
 
+template<> bool SpriteBase::Is<MoneyEffect>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_MONEY_EFFECT;
+}
+
 bool rct_sprite::IsMoneyEffect()
 {
     return this->money_effect.sprite_identifier == SPRITE_IDENTIFIER_MISC

src/openrct2/world/Particle.cpp

@@ -14,6 +14,15 @@
 
 #include <iterator>
 
+template<> bool SpriteBase::Is<VehicleCrashParticle>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_CRASHED_VEHICLE_PARTICLE;
+}
+
+template<> bool SpriteBase::Is<CrashSplashParticle>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_CRASH_SPLASH;
+}
 /**
  *
  *  rct2: 0x006735A1

src/openrct2/world/Sprite.cpp

@@ -52,6 +52,26 @@ static CoordsXYZ _spritelocations2[MAX_SPRITES];
 static size_t GetSpatialIndexOffset(int32_t x, int32_t y);
 static void move_sprite_to_list(SpriteBase* sprite, SPRITE_LIST newListIndex);
 
+template<> bool SpriteBase::Is<Litter>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_LITTER;
+}
+
+template<> bool SpriteBase::Is<SteamParticle>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_STEAM_PARTICLE;
+}
+
+template<> bool SpriteBase::Is<ExplosionFlare>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_EXPLOSION_FLARE;
+}
+
+template<> bool SpriteBase::Is<ExplosionCloud>() const
+{
+    return sprite_identifier == SPRITE_IDENTIFIER_MISC && type == SPRITE_MISC_EXPLOSION_CLOUD;
+}
+
 std::string rct_sprite_checksum::ToString() const
 {
     std::string result;

src/openrct2/world/Sprite.h

@@ -100,6 +100,14 @@ struct VehicleCrashParticle : SpriteGeneric
     int32_t acceleration_z;
 };
 
+struct ExplosionFlare : SpriteGeneric
+{
+};
+
+struct ExplosionCloud : SpriteGeneric
+{
+};
+
 struct CrashSplashParticle : SpriteGeneric
 {
 };

src/openrct2/world/SpriteBase.h

@@ -33,6 +33,16 @@ struct SpriteBase
     uint8_t sprite_direction;
 
     void MoveTo(const CoordsXYZ& newLocation);
+    template<typename T> bool Is() const;
+    template<typename T> T* As()
+    {
+        T* result = nullptr;
+        if (Is<T>())
+        {
+            result = reinterpret_cast<T*>(this);
+        }
+        return result;
+    }
 };
 
 struct SpriteGeneric : SpriteBase