// Copyright Zelle Games


#include "StatsSubsystem.h"

bool UStatsSubsystem::IncreaseStat(FString StatName)
{
	int32* StatToIncrease = &AttackPower;
	int32 NextCost = 0;
	
	if(StatName == "HP")
	{
		NextCost = GetNextCost(MaxHP, StatName);
		StatToIncrease = &MaxHP;
	} else if(StatName == "ATK")
	{
		NextCost = GetNextCost(AttackPower, StatName);
	} else if(StatName == "ASPD")
	{
		NextCost = GetNextCostFloat(AttackSpeed, StatName);
	} else if(StatName == "DEF")
	{
		NextCost = GetNextCost(DefensePower, StatName);
		StatToIncrease = &DefensePower;
	} else if(StatName == "DEX")
	{
		NextCost = GetNextCost(Dexterity, StatName);
		StatToIncrease = &Dexterity;
	} else if(StatName == "REC")
	{
		NextCost = GetNextCost(RecoveryPerTurn, StatName);
		StatToIncrease = &RecoveryPerTurn;
	}
	
	if(XP >= NextCost)
	{
		XP -= NextCost;
		if(StatName == "ASPD")
		{
			AttackSpeed += 0.01f;
		} else if(StatName == "HP")
		{
			(*StatToIncrease) += 10;
		}else
		{
			(*StatToIncrease)++;
		}
		return true;
	}

	return false;
}

int32 UStatsSubsystem::GetNextCost(int32 Input, FString StatName)
{
	int32 Divisor;
	float Multiplier;
	if(StatName == "HP")
	{
		Divisor = 100;
		Multiplier = 1.5f;
	} else
	{
		Divisor = 10;
		Multiplier = 1.5f;
	}
	
	int32 NumBreakpoints = FMath::DivideAndRoundDown(Input, Divisor);	
	return FMath::CeilToInt(NumBreakpoints * Multiplier) + 1;
	
}

int32 UStatsSubsystem::GetNextCostFloat(float Input, FString StatName)
{
	int32 Divisor;
	float Multiplier;
	float Base;
	if(StatName == "ASPD")
	{
		Divisor = 20;
		Multiplier = 1.2f;
		Base = 0.33f;
	} else
	{
		Divisor = 10;
		Multiplier = 1.5f;
		Base = 0.33f;
	}
	
	int32 NumBreakpoints = FMath::DivideAndRoundDown(FMath::FloorToInt((Input - Base) * 100) , Divisor);	
	return FMath::CeilToInt(NumBreakpoints * Multiplier) + 1;
}