#include "game.hpp"
#include "Actor.hpp"


game::game()
{
    ptr_MainWindow = nullptr;
    ptr_MainRenderer = nullptr;
    GameTick = 0;
    GameIsRunning = true;
}

game::~game()
{
}


void game::input()
{
    SDL_Event event;

    while (SDL_PollEvent (&event))
    {
        switch (event.type)
        {
        case SDL_QUIT:
            GameIsRunning = false;
            break;
        
        default:
            break;
        }
    }

    const Uint8* state = SDL_GetKeyboardState(NULL);
	if (state[SDL_SCANCODE_ESCAPE])
	{
		GameIsRunning = false;
	}
    

}

void game::update()
{
    while (!SDL_TICKS_PASSED(SDL_GetTicks(), GameTick + 16));   //Wait 16ms since last frame

    float dt = (SDL_GetTicks() - GameTick)/ 1000.0f; //Zeitdifferent in Sekunden
    if(dt > 0.05f) dt = 0.05f;

    GameTick = SDL_GetTicks();

    //Update all Actores

    UpdateActors = true;
    for (auto a : ActorList)
    {
        a->Update(dt);
    }
    
    UpdateActors = false;
    
}

void game::output()
{
    for (auto a : ActorList)
    {
        a->Draw(ptr_MainRenderer);
    }
}

bool game::Init(int x, int y, int w, int h)
{
    ptr_MainWindow = SDL_CreateWindow("ComponentBasedProgramm", x,y,w,h,0);

    if (!ptr_MainWindow)
    {
        return false;
    }
    
    ptr_MainRenderer = SDL_CreateRenderer(ptr_MainWindow, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);

    if (!ptr_MainRenderer)
    {
        return false;
    }

    GameTick = SDL_GetTicks();

    return true;

}

void game::RunLoop()
{
    while(GameIsRunning){
        input();
        update();
        output();
    }

}

void game::Shutdown()
{

}

void game::AddActor(class Actor *ptr_actor)
{
	SDL_DestroyRenderer(ptr_MainRenderer);
	SDL_DestroyWindow(ptr_MainWindow);
	SDL_Quit();

}

void RemActor(class Actor *ptr_actor)
{

}