Populate image table for scenario meta objects

src/openrct2/object/ScenarioMetaObject.cpp

@@ -18,10 +18,16 @@ using namespace OpenRCT2;
 
 void ScenarioMetaObject::Load()
 {
+    auto numImages = GetImageTable().GetCount();
+    if (numImages == 0)
+        return;
+
+    _imageOffsetId = LoadImages();
 }
 
 void ScenarioMetaObject::Unload()
 {
+    UnloadImages();
 }
 
 void ScenarioMetaObject::ReadJson(IReadObjectContext* context, json_t& root)
@@ -44,3 +50,13 @@ std::string ScenarioMetaObject::GetScenarioDetails()
 {
     return GetStringTable().GetString(ObjectStringID::SCENARIO_DETAILS);
 }
+
+ImageIndex ScenarioMetaObject::GetMiniMapImageIndex() const
+{
+    return _imageOffsetId;
+}
+
+ImageIndex ScenarioMetaObject::GetPreviewImageIndex() const
+{
+    return _imageOffsetId + 1;
+}

src/openrct2/object/ScenarioMetaObject.h

@@ -16,6 +16,9 @@
 
 class ScenarioMetaObject final : public Object
 {
+private:
+    ImageIndex _imageOffsetId;
+
 public:
     static constexpr ObjectType kObjectType = ObjectType::scenarioMeta;
 
@@ -26,4 +29,7 @@ public:
     std::string GetScenarioName();
     std::string GetParkName();
     std::string GetScenarioDetails();
+
+    ImageIndex GetMiniMapImageIndex() const;
+    ImageIndex GetPreviewImageIndex() const;
 };