Breadth First Search; considering use of diagonals for A*PF

AdventureCameraPawn.cpp

@@ -35,7 +35,7 @@ AAdventureCameraPawn::AAdventureCameraPawn()
 void AAdventureCameraPawn::BeginPlay()
 {
 	Super::BeginPlay();
-	ControllerRef = (AAdventurePlayerController*)UGameplayStatics::GetPlayerController(GetWorld(), 0);
+	OwningPC = (AAdventurePlayerController*)UGameplayStatics::GetPlayerController(GetWorld(), 0); // for now
 
 	// Viewport properties not accurate on BeginPlay (must wait before accessing)
 	FTimerHandle UnusedHandle;
@@ -85,7 +85,7 @@ void AAdventureCameraPawn::EdgeScrollSide(float AxisValue)
 {
 	float mouseX;
 	float mouseY;
-	ControllerRef->GetMousePosition(mouseX, mouseY);
+	OwningPC->GetMousePosition(mouseX, mouseY);
 	float mousePosX = mouseX / ViewSize.X;
 	float mousePosY = mouseY / ViewSize.Y;
 	float VertAccelleration = GetInputAxisValue("Mouse Y") * (ScrollAccelleration * .75);
@@ -133,7 +133,7 @@ void AAdventureCameraPawn::EdgeScrollVert(float AxisValue)
 {
 	float mouseX;
 	float mouseY;
-	ControllerRef->GetMousePosition(mouseX, mouseY);
+	OwningPC->GetMousePosition(mouseX, mouseY);
 	float mousePosY = mouseY / ViewSize.Y;
 	float mousePosX = mouseX / ViewSize.X;
 	float SideAccelleration = GetInputAxisValue("Mouse X") * (ScrollAccelleration * .75);
@@ -182,7 +182,7 @@ void AAdventureCameraPawn::FollowAdvPawn()
 {
 	UE_LOG(LogTemp, Warning, TEXT("following..."));
 
-	AdvPawnLocationCurrent = AdvPawnRef->GetActorLocation();
+	AdvPawnLocationCurrent = FollowPawn->GetActorLocation();
 	AdvPawnLocationDelta = AdvPawnLocationCurrent - AdvPawnLocationPrevious;
 
 	UE_LOG(LogTemp, Warning, TEXT("%s"), *AdvPawnLocationDelta.ToString());

AdventureCameraPawn.h

@@ -23,9 +23,9 @@ public:
 	UPROPERTY(BlueprintReadWrite, Category = "Config")
 		class AAdventureMap* AdvMapRef;
 	UPROPERTY(BlueprintReadWrite, Category = "Config")
-		class AAdventurePlayerController* ControllerRef;
+		class AAdventurePlayerController* OwningPC;
 	UPROPERTY(BlueprintReadWrite, Category = "Config")
-		class AAdventureCharacter* AdvPawnRef;
+		class AAdventureCharacter* FollowPawn;
 
 	
 	UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Input")

AdventureCharacter.h

@@ -20,10 +20,10 @@ public:
 	// Sets default values for this character's properties
 	AAdventureCharacter();
 
+	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Config")
+		class AAdventureMap* MapRef;
 	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Runtime")
-		AHexTile* GridLocation;
-	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Runtime")
-		AHexTile* SelectedHex;
+		AHexTile* Location;
 
 protected:
 	// Called when the game starts or when spawned

AdventureMap.cpp

@@ -3,8 +3,6 @@
 
 #include "AdventureMap.h"
 #include "HexTile.h"
-#include "AdventureCameraPawn.h"
-#include "AdventureCharacter.h"
 #include "Kismet/GameplayStatics.h"
 #include "Algo/Reverse.h"
 
@@ -94,10 +92,38 @@ TArray<AHexTile*> AAdventureMap::Neighbors(AHexTile* OfHex)
 	return Neighbors;
 }
 
+TArray<AHexTile*> AAdventureMap::BreadthFirstSearch(AHexTile* Start, int32 Radius)
+{
+	TArray<AHexTile*> Results;
+	TArray<AHexTile*> ToExamine;
+	TSet<AHexTile*> Processed;
+
+	ToExamine.Add(Start);
+
+	while (!ToExamine.IsEmpty()) {
+		AHexTile* Candidate = ToExamine[0];
+
+		Processed.Add(Candidate);
+		ToExamine.Remove(Candidate);
+
+		for (AHexTile* Neighbor : Neighbors(Candidate)) {
+			if (Neighbor->Distance(Candidate) > 1) { continue; }
+			if (Processed.Contains(Neighbor)) { continue; }
+
+			if (Neighbor->Distance(Start) <= Radius) {
+				ToExamine.Add(Neighbor);
+				Results.Add(Neighbor);
+			}
+		}
+	}
+
+	Results.Add(Start);
+	return Results;
+}
 TArray<AHexTile*> AAdventureMap::AStar(AHexTile* Start, AHexTile* Goal)
 {
 	TArray<AHexTile*> ToExamine;
-	TArray<AHexTile*> Processed;
+	TSet<AHexTile*> Processed;
 	ToExamine.Add(Start);
 
 	while (!ToExamine.IsEmpty())	{

AdventureMap.h

@@ -7,7 +7,7 @@
 #include "AdventureMap.generated.h"
 
 class AHexTile;
-class AAdventureCharacter;
+class AMapObject;
 
 UCLASS()
 class FRAY_API AAdventureMap : public AActor
@@ -33,26 +33,41 @@ public:
 		void MakeGrid();
 	UPROPERTY(BlueprintReadOnly, Category = "Generation")
 		bool bHexGridReady;
-	UPROPERTY(VisibleInstanceOnly, BlueprintReadWrite, Category = "Generation")
+	UPROPERTY(BlueprintReadOnly, Category = "Generation")
 		TArray<AHexTile*> Grid;
 
+	UPROPERTY(BlueprintReadWrite, EditAnywhere)
+		TMap<AHexTile*, AMapObject*> MapObjects;
+	UPROPERTY(BlueprintReadOnly)
+		TMap<int32, AMapObject*> MapObjectsByID;
+	int32 IncID = -1;
+
 	UFUNCTION(BlueprintCallable, Category = "Runtime")
 		int32 GridIndex(int32 q, int32 r);
 	UFUNCTION(BlueprintCallable, Category = "Runtime")
 		AHexTile* RandomHex();
 	UFUNCTION(BlueprintCallable, Category = "Runtime")
 		TArray<AHexTile*> Neighbors(AHexTile* OfHex);
+	UFUNCTION(BlueprintCallable, Category = "Runtime")
+		TArray<AHexTile*> BreadthFirstSearch(AHexTile* Start, int32 Radius);
 	UFUNCTION(BlueprintCallable, Category = "Runtime")
 		TArray<AHexTile*> AStar(AHexTile* Start, AHexTile* Goal);
 	UFUNCTION(BlueprintCallable, Category = "Runtime")
 		TArray<AHexTile*> LinkPath(AHexTile* Start, AHexTile* Goal);
 
-
-	// Player spawn section
-	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
-		APawn* CameraPawn;
-	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
-		AAdventureCharacter* PlayerCharacter;
+	// Cardinal direction vectors
+	TPair<int32, int32> N	= TPair<int32,int32>(1, -2);	//diag
+	TPair<int32, int32> NE	= TPair<int32,int32>(1, -1);
+	TPair<int32, int32> ENE	= TPair<int32,int32>(2, -1);	//diag
+	TPair<int32, int32> E	= TPair<int32,int32>(1, 0);
+	TPair<int32, int32> ESE	= TPair<int32,int32>(1, 1);		//diag
+	TPair<int32, int32> SE	= TPair<int32,int32>(0, 1);
+	TPair<int32, int32> S	= TPair<int32,int32>(-1, 2);	//diag
+	TPair<int32, int32> SW	= TPair<int32,int32>(-1, 1);
+	TPair<int32, int32> WSW	= TPair<int32,int32>(-2, 1);	//diag
+	TPair<int32, int32> W	= TPair<int32,int32>(-1, 0);
+	TPair<int32, int32> WNW	= TPair<int32,int32>(-1, -1);	//diag
+	TPair<int32, int32> NW	= TPair<int32,int32>(0, -1);
 
 protected:
 	// Called when the game starts or when spawned

AdventurePlayerController.cpp

@@ -41,6 +41,7 @@ void AAdventurePlayerController::SetupInputComponent()
 
 void AAdventurePlayerController::LeftClick()
 {
+    if (!IsValid(HoveredHex)) { return; }
     if (bInPlacementMode) { PlaceObject(PlaceObjClass, HoveredHex); }
 }
 
@@ -66,10 +67,13 @@ void AAdventurePlayerController::PlaceObject(TSubclassOf<AMapObject> MapObjClass
 {
 	// spawn this Actor at World location of Origin Hex;
     AMapObject* SpawnedObj = World->SpawnActor<AMapObject>(MapObjClass, FTransform(OnHex->GetActorTransform().GetLocation()));
-    // Origin = OnHex;
     SpawnedObj->Origin = OnHex;
+
 	// set Hexes to bOccupied according to BlockVectors;
-    OnHex->bFree = false;
-	// set bPlacementMode = false;
-	// 
+    OnHex->bFree = false; // exact Hexes are eventually to be determined by MapObjectClass's BlockingVectors
+
+    MapRef->MapObjects.Add(OnHex, SpawnedObj); // maybe this as well
+    MapRef->IncID++;
+    SpawnedObj->ID = MapRef->IncID;
+    MapRef->MapObjectsByID.Add(MapRef->IncID, SpawnedObj);
 }

AdventurePlayerController.h

@@ -26,9 +26,9 @@ public:
 // General
 	UPROPERTY()
 		UWorld* World;
-	UPROPERTY()
+	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
 		AAdventureMap* MapRef;
-	UPROPERTY()
+	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
 		AHexTile* SpawnHex;
 	UPROPERTY(VisibleAnywhere, BlueprintReadWrite, Category = "Runtime")
 		AHexTile* CurrentHex;