#include "screen.h"
#include "const.h"

// Constructor
Screen::Screen(SDL_Window *window, SDL_Renderer *renderer)
{
    mWindow = window;
    mRenderer = renderer;

    mRealScreenWidth = REAL_SCREEN_WIDTH;
    mRealScreenHeight = REAL_SCREEN_HEIGHT;
    mScreenWidth = SCREEN_WIDTH;
    mScreenHeight = SCREEN_HEIGHT;
    mBorderX = (REAL_SCREEN_WIDTH - SCREEN_WIDTH) / 2;
    mBorderY = (REAL_SCREEN_HEIGHT - SCREEN_HEIGHT) / 2;

    mGameCanvas = SDL_CreateTexture(mRenderer, SDL_PIXELFORMAT_RGBA8888, SDL_TEXTUREACCESS_TARGET, SCREEN_WIDTH, SCREEN_HEIGHT);
    if (mGameCanvas == NULL)
        printf("TitleSurface could not be created!\nSDL Error: %s\n", SDL_GetError());
}

// Destructor
Screen::~Screen()
{
    mRenderer = nullptr;
}

// Limpia la pantalla
void Screen::clean()
{
    SDL_SetRenderDrawColor(mRenderer, 0x27, 0x27, 0x36, 0xFF);
    SDL_RenderClear(mRenderer);

    SDL_SetRenderTarget(mRenderer, mGameCanvas);
    SDL_SetRenderDrawColor(mRenderer, 0xAA, 0x44, 0x44, 0xFF);
    SDL_RenderClear(mRenderer);
}

// Vuelca el contenido del renderizador en pantalla
void Screen::blit()
{
    SDL_Rect src = {0, 0, SCREEN_WIDTH, SCREEN_HEIGHT};
    SDL_Rect dest = {mBorderX, mBorderY, SCREEN_WIDTH, SCREEN_HEIGHT};

    SDL_SetRenderTarget(mRenderer, NULL);
   
    SDL_RenderCopy(mRenderer, mGameCanvas, NULL, &dest);

    SDL_RenderPresent(mRenderer);
}