Large map and tiles maps generated based on noise render target

Unreal/CarlaUE4/Plugins/CarlaTools/Source/CarlaTools/Private/MapGeneratorWidget.cpp

@@ -20,41 +20,52 @@
 
 
 
-FString UMapGeneratorWidget::GenerateMapFiles(const FString& destinationPath, const FString& mapName)
+FString UMapGeneratorWidget::GenerateMapFiles(const FMapGeneratorMetaInfo& metaInfo)
 {
     DEBUG_MSG("Generating new map...");
 
     FString errorMsg = "";
 
-    FAssetData worldAssetData;
-
     // 1. Creating Levels
-    bool bLoaded = LoadWorld(worldAssetData);
+    CreateMainLargeMap(metaInfo);
-    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Yellow, bLoaded ? "Loaded CORRECT" : "NOT loaded");
+    CreateTilesMaps(metaInfo);
+    // bool bLoaded = LoadWorld(worldAssetData);
+    // GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Yellow, bLoaded ? "Loaded CORRECT" : "NOT loaded");
 
     // 2. Applying heightmap
-    UWorld* world = CastChecked<UWorld>(worldAssetData.GetAsset());
+    // UWorld* world = CastChecked<UWorld>(worldAssetData.GetAsset());
-    ALandscape* landscape = (ALandscape*) UGameplayStatics::GetActorOfClass(world, ALandscape::StaticClass());
+    // ALandscape* landscape = (ALandscape*) UGameplayStatics::GetActorOfClass(world, ALandscape::StaticClass());
-    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Green, landscape!=nullptr ? "L TRUE" : "L FALSE");
+    // GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Green, landscape!=nullptr ? "L TRUE" : "L FALSE");
-    AssignLandscapeHeightMap(landscape);
+    // AssignLandscapeHeightMap(landscape);
 
     // 3. Saving world
-    bool bSaved = SaveWorld(worldAssetData, destinationPath, mapName);
+    // bool bSaved = SaveWorld(worldAssetData, metaInfo.destinationPath, metaInfo.mapName);
-    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Green, bSaved ? "Saved CORRECT" : "NOT saved");
+    // GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Green, bSaved ? "Saved CORRECT" : "NOT saved");
 
     return errorMsg;
 }
 
-bool UMapGeneratorWidget::LoadWorld(FAssetData& WorldAssetData)
+bool UMapGeneratorWidget::LoadBaseTileWorld(FAssetData& WorldAssetData)
+{
+    const FString baseMapPath= TEXT("/CarlaTools/MapGenerator/BaseMap/Tiles");
+    return LoadWorld(WorldAssetData, baseMapPath);
+}
+
+bool UMapGeneratorWidget::LoadBaseLargeMapWorld(FAssetData& WorldAssetData)
+{
+    const FString baseMapPath= TEXT("/CarlaTools/MapGenerator/BaseMap/MainLargeMap");
+    return LoadWorld(WorldAssetData, baseMapPath);
+}
+
+bool UMapGeneratorWidget::LoadWorld(FAssetData& WorldAssetData, const FString& baseMapPath)
 {
     TArray<FAssetData> AssetDatas;
     UObjectLibrary *MapObjectLibrary;
-    const FString BaseMap = TEXT("/CarlaTools/MapGenerator/BaseMap");
 
     // Loading Map from folder using object library
     MapObjectLibrary = UObjectLibrary::CreateLibrary(UWorld::StaticClass(), false, GIsEditor);
     MapObjectLibrary->AddToRoot();
-    MapObjectLibrary->LoadAssetDataFromPath(*BaseMap);
+    MapObjectLibrary->LoadAssetDataFromPath(*baseMapPath);
     MapObjectLibrary->LoadAssetsFromAssetData();
     MapObjectLibrary->GetAssetDataList(AssetDatas);
     if (AssetDatas.Num() > 0)
@@ -103,4 +114,51 @@ bool UMapGeneratorWidget::SaveWorld(FAssetData& WorldToBeSaved, const FString& D
         *PackageFileName, GError, nullptr, true, true, SAVE_NoError);
 }
 
+bool UMapGeneratorWidget::CreateMainLargeMap(const FMapGeneratorMetaInfo& metaInfo)
+{
+    FAssetData worldAssetData;
+    bool bLoaded = LoadBaseLargeMapWorld(worldAssetData);
+    bool bSaved = SaveWorld(worldAssetData, metaInfo.destinationPath, metaInfo.mapName);
+
+    return true;
+}
+
+bool UMapGeneratorWidget::CreateTilesMaps(const FMapGeneratorMetaInfo& metaInfo)
+{
+    FAssetData worldAssetData;
+    
+    int numberOfTiles = metaInfo.sizeX * metaInfo.sizeY;
+
+    for(int i = 0; i < numberOfTiles; i++)
+    {
+        bool bLoaded = LoadBaseTileWorld(worldAssetData);
+
+        ApplyHeightMapToLandscape(worldAssetData);
+
+        const FString mapName = metaInfo.mapName + "_" + FString::FromInt(i);
+        bool bSaved = SaveWorld(worldAssetData, metaInfo.destinationPath, mapName);
+        GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Green, bSaved ? "Saved CORRECT" : "NOT saved");
+    }
+    return true;
+}
+
+bool UMapGeneratorWidget::ApplyHeightMapToLandscape(FAssetData& worldAssetData)
+{
+    UWorld* world;
+    UObjectRedirector* BaseMapRedirector = Cast<UObjectRedirector>(worldAssetData.GetAsset());
+    if(BaseMapRedirector != nullptr)
+    {
+        world = CastChecked<UWorld>(BaseMapRedirector->DestinationObject);
+    }
+    else
+    {
+        world = CastChecked<UWorld>(worldAssetData.GetAsset());
+    }
+    ALandscape* landscape = (ALandscape*) UGameplayStatics::GetActorOfClass(world, ALandscape::StaticClass());
+    GEngine->AddOnScreenDebugMessage(-1, 15.0f, FColor::Green, landscape!=nullptr ? "L TRUE" : "L FALSE");
+    AssignLandscapeHeightMap(landscape);
+    return true;
+}
+
+
 // #endif

Unreal/CarlaUE4/Plugins/CarlaTools/Source/CarlaTools/Public/MapGeneratorWidget.h

@@ -17,6 +17,24 @@
 
 #include "MapGeneratorWidget.generated.h"
 
+USTRUCT(BlueprintType)
+struct CARLATOOLS_API FMapGeneratorMetaInfo
+{
+    GENERATED_USTRUCT_BODY();
+
+    UPROPERTY(BlueprintReadWrite)
+    FString destinationPath;
+
+    UPROPERTY(BlueprintReadWrite)
+    FString mapName;
+
+    UPROPERTY(BlueprintReadWrite)   
+    int sizeX;
+
+    UPROPERTY(BlueprintReadWrite)
+    int sizeY;
+};
+
 /// Class UMapGeneratorWidget extends the functionality of UEditorUtilityWidget
 /// to be able to generate and manage maps and largemaps tiles for procedural
 /// map generation
@@ -25,6 +43,11 @@ class CARLATOOLS_API UMapGeneratorWidget : public UEditorUtilityWidget
 {
     GENERATED_BODY()
 
+
+private:
+    // UPROPERTY()
+    // UObjectLibrary *MapObjectLibrary;
+
 public:
     /// This function invokes a blueprint event defined in widget blueprint 
     /// event graph, which sets a heightmap to the @a landscape using
@@ -33,26 +56,49 @@ public:
     UFUNCTION(BlueprintImplementableEvent)
     void AssignLandscapeHeightMap(ALandscape* landscape);
 
-//private:
-    // UPROPERTY()
-    // UObjectLibrary *MapObjectLibrary;
-
-public:
     /// Function called by Widget Blueprint which generates all tiles of map
     /// @a mapName, and saves them in @a destinationPath
     /// Returns a void string is success and an error message if the process failed
     UFUNCTION(Category="Map Generator",BlueprintCallable)
-    FString GenerateMapFiles(const FString& destinationPath, const FString& mapName);
+    FString GenerateMapFiles(const FMapGeneratorMetaInfo& metaInfo);
 
 private:    
-    /// Loads the base template UWorld object and is return in @a WorldAssetData
+    /// Loads the base tile map and stores it in @a WorldAssetData
     /// The funtions return true is success, otherwise false
     UFUNCTION()
-    bool LoadWorld(FAssetData& WorldAssetData);
+    bool LoadBaseTileWorld(FAssetData& WorldAssetData);
+
+    /// Loads the base large map and stores it in @a WorldAssetData
+    /// The funtions return true is success, otherwise false
+    UFUNCTION()
+    bool LoadBaseLargeMapWorld(FAssetData& WorldAssetData);
+
+    /// Loads the base template UWorld object from @a baseMapPath and returns 
+    /// it in @a WorldAssetData
+    /// The funtions return true is success, otherwise false
+    UFUNCTION()
+    bool LoadWorld(FAssetData& WorldAssetData, const FString& baseMapPath);
 
     /// Saves a world contained in @a WorldToBeSaved, in the path defined in @a DestinationPath
     /// named as @a WorldName, as a package .umap
     UFUNCTION()
     bool SaveWorld(FAssetData& WorldToBeSaved, const FString& DestinationPath, const FString& WorldName);
+
+    /// Takes the name of the map from @a metaInfo and created the main map
+    /// including all the actors needed by large map system
+    UFUNCTION()
+    bool CreateMainLargeMap(const FMapGeneratorMetaInfo& metaInfo);
+
+    /// Takes @a metaInfo as input and generates all tiles based on the
+    /// dimensions specified for the map
+    /// The funtions return true is success, otherwise false
+    UFUNCTION()
+    bool CreateTilesMaps(const FMapGeneratorMetaInfo& metaInfo);
+
+    /// Gets the landscape from the input world @a worldAssetData and
+    /// applies the heightmap to it
+    /// The funtions return true is success, otherwise false
+    UFUNCTION()
+    bool ApplyHeightMapToLandscape(FAssetData& worldAssetData);
 };
 // #endif