CPP

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

#include "GSTut.h"
#include "Runtime/UMG/Public/UMG.h"
#include "Blueprint/UserWidget.h"
#include "GameSparksStatics.h"
#include "StateManager.h"

void UStateManager::Init()
{
    Super::Init();

    currentState = EGameState::ENone;

    currentWidget = nullptr;
}

void UStateManager::ChangeState(EGameState newState)
{
    //if the desired state is not the current state
    if (newState != currentState) {
        LeaveState(currentState);
        EnterState(newState);
    }
}

EGameState UStateManager::GetGameState()
{
    return currentState;
}

void UStateManager::Login(FString username, FString password)
{
    //make sure our username and password aren't empty
    if (username.IsEmpty() || password.IsEmpty()) {
        return;
    }

    //get instance of gamesparks
    GameSparks::Core::GS& gs = UGameSparksModule::GetModulePtr()->GetGSInstance();

    //build our login request
    GameSparks::Api::Requests::AuthenticationRequest req(gs);

    //set the username and password on our request
    req.SetUserName(std::string(TCHAR_TO_UTF8(*username)));
    req.SetPassword(std::string(TCHAR_TO_UTF8(*password)));

    //send the request
    req.Send(UGameSparksStatics::LoginRequest_Response);
}

void UStateManager::Register(FString username, FString password)
{
    //make sure our username and password aren't empty
    if (username.IsEmpty() || password.IsEmpty()) {
        return;
    }

    //get instance of gamesparks
    GameSparks::Core::GS& gs = UGameSparksModule::GetModulePtr()->GetGSInstance();

    //build our registration request
    GameSparks::Api::Requests::RegistrationRequest req(gs);

    //set username, password and display name
    req.SetUserName(std::string(TCHAR_TO_UTF8(*username)));
    req.SetPassword(std::string(TCHAR_TO_UTF8(*password)));
    req.SetDisplayName(std::string(TCHAR_TO_UTF8(*username)));

    //send the request
    req.Send(UGameSparksStatics::RegistrationRequest_Response);
}

void UStateManager::EnterState(EGameState newState)
{
    //set new state
    currentState = newState;

    switch (currentState) {
    case EGameState::EStartup: {
        break;
    }
    case EGameState::ELoginScreen: {
        currentWidget = CreateWidget<UUserWidget>(GetWorld()->GetFirstPlayerController(), cLoginMenu);
        currentWidget->AddToViewport();

        //Change input mode to UI only and show mouse cursor
        FInputModeUIOnly mode;
        GetWorld()->GetFirstPlayerController()->SetInputMode(mode);
        GetWorld()->GetFirstPlayerController()->bShowMouseCursor = true;

        break;
    }
    case EGameState::ENone: {
        break;
    }
    }
}

void UStateManager::LeaveState(EGameState oldState)
{
    switch (currentState) {
    case EGameState::EStartup: {
        break;
    }
    case EGameState::ELoginScreen: {
        break;
    }
    case EGameState::ENone: {
        break;
    }
    }

    EnterState(EGameState::ENone);
}