// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "Containers/Map.h"
#include "HexVector.h"
#include "AdventureMap.generated.h"

class AHexTile;
class AMapObject;
class AAdventurePlayerController;

UCLASS()
class FRAY_API AAdventureMap : public AActor
{
	GENERATED_BODY()
	
public:	
	// Sets default values for this actor's properties
	AAdventureMap();

	UPROPERTY()
		UWorld* World;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		TSubclassOf<AHexTile> BaseTileClass;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		int32 GridSize = 100;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		int32 TileSize = 100;

	UPROPERTY(VisibleAnywhere, BlueprintReadWrite)
		AAdventurePlayerController* PCRef;

	UFUNCTION(BlueprintCallable, Category = "Generation")
		void MakeGrid();
	UPROPERTY(BlueprintReadOnly, Category = "Generation")
		bool bHexGridReady;
	UPROPERTY(BlueprintReadOnly, Category = "Generation")
		TArray<AHexTile*> Grid;

	UFUNCTION(BlueprintCallable, Category = "Utility")
		int32 GridIndex(int32 q, int32 r);
	UFUNCTION(BlueprintCallable, Category = "Utility")
		AHexTile* RandomHex();

	// Cardinal direction vectors
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)	//diag
	FHexVector N	= FHexVector(1, -2);			//
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
	FHexVector NNE	= FHexVector(1, -1);
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)	//diag
	FHexVector ENE	= FHexVector(2, -1);			//
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
	FHexVector E	= FHexVector(1, 0);
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)	//diag
	FHexVector ESE	= FHexVector(1, 1);				//
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
	FHexVector SSE	= FHexVector(0, 1);
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)	//diag
	FHexVector S	= FHexVector(-1, 2);			//
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
	FHexVector SSW	= FHexVector(-1, 1);
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)	//diag
	FHexVector WSW	= FHexVector(-2, 1);			//
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
	FHexVector W	= FHexVector(-1, 0);
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)	//diag
	FHexVector WNW	= FHexVector(-1, -1);			//
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
	FHexVector NNW	= FHexVector(0, -1);
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
		TArray<FHexVector> NeighborUnitVectors;
	UPROPERTY(BlueprintReadOnly, VisibleAnywhere)
		TArray<FHexVector> DiagonalUnitVectors;
	UFUNCTION(BlueprintCallable, Category = "Utility")
		FHexVector UnitDiagFromUnitNB(FHexVector InVecA, FHexVector InVecB);
	UFUNCTION(BlueprintCallable, Category = "Utility")
		bool DiagIsReachable(AHexTile* InStart, FHexVector InDiagUnitVec);

	UFUNCTION(BlueprintCallable, Category = "Runtime")
		TArray<AHexTile*> Neighbors(AHexTile* OfHex, bool bFreeOnly);
	UFUNCTION(BlueprintCallable, Category = "Runtime")
		TArray<AHexTile*> FreeDiagonals(AHexTile* OfHex);
	UFUNCTION(BlueprintCallable, Category = "Runtime")
		TSet<AHexTile*> BreadthFirstSearch(AHexTile* Start, int32 Radius);
	UFUNCTION(BlueprintCallable, Category = "Runtime")
		TArray<AHexTile*> FindPathAStar(AHexTile* Start, AHexTile* Goal, bool bDiags);
	UFUNCTION(BlueprintCallable, Category = "Runtime")
		TArray<AHexTile*> ShortcutAStar(TArray<AHexTile*> Path);

// considering a MapObjectManager class or moving pathfinding & search to PlayerController

	UPROPERTY(BlueprintReadWrite, EditAnywhere)
		TMap<AHexTile*, AMapObject*> MapObjects;
	UPROPERTY(BlueprintReadOnly)
		TMap<int32, AMapObject*> MapObjectsByID;
	UPROPERTY(BlueprintReadWrite, VisibleAnywhere)
		int32 IncID = -1;


protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;
};