#include "Terrain.h"

Terrain::Terrain(SDL_Surface* img)
:Affichable(img)
{
    SDL_Surface *tmpImg, *model;
    m_rect.w = m_rect.h = LG_CHUNK;
    for (int x(0); x<NB_X_CHUNK; x++)
        for (int y(0); y<NB_Y_CHUNK; y++)
        {
            // Création de la surface du chunk
            tmpImg = SDL_CreateRGBSurface(SDL_HWSURFACE, LG_CHUNK, LG_CHUNK, 32, 0, 0, 0, 0);
            m_rect.x = x * LG_CHUNK;
            m_rect.y = y * LG_CHUNK;
            SDL_BlitSurface(img, &m_rect, tmpImg, 0);

            // Optimisation surface
            model = tmpImg;
            tmpImg = SDL_DisplayFormat(model);
            SDL_FreeSurface(model);

            // Création du chunk
            m_chunk[NB_Y_CHUNK-y-1][x] = new Chunk(tmpImg, x, NB_Y_CHUNK-y-1);
        }
}

Terrain::~Terrain()
{
    for (int x(0); x<NB_X_CHUNK; x++)
        for (int y(0); y<NB_Y_CHUNK; y++)
            delete m_chunk[y][x];
}

void Terrain::afficher(const Vec &lookAt, SDL_Surface* screen) const
{
    ///Affichage optimisé
    for (int x(0); x<NB_X_CHUNK; x++)
        for (int y(0); y<NB_Y_CHUNK; y++)
            m_chunk[y][x]->afficher(lookAt, screen);
}