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

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.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(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		TSubclassOf<AHexTile> BaseTileClass;
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		TSubclassOf<ACharacter> BasePartyCharacterClass;	
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		int32 GridSize = 100; // squared is the number of Tiles
	UPROPERTY(EditDefaultsOnly, BlueprintReadOnly, Category = "Config")
		int32 TileSize = 100;
	UPROPERTY()
		UWorld* World;

	UFUNCTION(BlueprintCallable, Category = "Generation")
		void MakeGrid();
	UPROPERTY(BlueprintReadOnly, Category = "Generation")
		bool bHexGridReady;
	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);

	// 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
	virtual void BeginPlay() override;
};