Need help finishing up my Advanced Wave Spawning System.

[anonymous_user_5b5c8515]

I always try to code in a way that is designer friendly, even if I’m working on my own. It seems you would be better served by using a DataTable. You can create and edit these in editor or export/import data to .csv and .json.
DataTables are built from a struct, make sure your struct is properly exposed to the editor.

Everything you need to know about referencing a DataTable in C++ and accessing its rows can be found in these links:

Driving Gameplay with Data from Excel

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You dont actually need Excel to work with data tables anymore, those links are a little old. In the content browser RightClick->Miscellaneous->DataTable to create a new table. A popup asks you for a struct to base the table on, just give it your FWaveData struct and you can start adding rows for each wave.

Here’s an example of how I would approach it. I havn’t compiled any of this, just copy/pasted from a few sources and tweaked, but it should give you an idea of how to set it up.

In .h

USTRUCT(BlueprintType)
struct FWaveData
{
	GENERATED_USTRUCT_BODY()

	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		int32 MaxSpawnsPerWave;

	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		int32 MaxSpawnsAtATime;

	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		TArray<int32> SpawnPriorities;

	UPROPERTY(EditAnywhere, BlueprintReadWrite)
		TArray<TSubclassOf<AEnemy_Base>> EnemyTypes;
};

UPROPERTY(BlueprintReadOnly)
UDataTable* WaveDataTable;

UPROPERTY(EditAnywhere, BlueprintReadWrite)
FWaveData CurrentWaveData;

In .cpp

AZombieSpawnTutorial::AZombieSpawnTutorial()  //Find the editor asset in the constructor
{
        ConstructorHelpers::FObjectFinder<UDataTable> WaveDataTable_BP(TEXT("DataTable'/Game/DataTables/ExcelExample.ExcelExample'"));

        WaveDataTable= WaveDataTable_BP.Object;
}

AZombieSpawnTutorial::IterateWave()
{
	CurrentWave++;

	FString WaveName = FString::FromInt(CurrentWave);

	CurrentWaveData = WaveDataTable->FindRow<FWaveData>(FText::FromString(WaveName));

	OnBeginSpawnWave();
}

The resulting DataTable in editor. Super easy to edit!