LazyPenguinProject/TextureManager.cpp at master · VicPopescu/LazyPenguinProject · GitHub

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#include "TextureManager.h"
#include "SDL_image.h"
#include "SDL.h"

TextureManager::TextureManager(){}
TextureManager::~TextureManager(){}

TextureManager* TextureManager::s_pInstance = 0;


/* LOAD */
bool TextureManager::load(std::string fileName, std::string id, SDL_Renderer* pRenderer){

    SDL_Surface* pTempSurface = IMG_Load(fileName.c_str());

    if(pTempSurface == 0){

        return false;
    }

    SDL_Texture* pTexture = SDL_CreateTextureFromSurface(pRenderer, pTempSurface);

    SDL_FreeSurface(pTempSurface);

    // everything went ok, add the texture to our list
    if(pTexture != 0){

        m_textureMap[id] = pTexture;
        return true;
    }
    // reaching here means something went wrong
    return false;

}


/* DRAW */
void TextureManager::draw(std::string id, int x, int y, int width, int height, SDL_Renderer* pRenderer, SDL_RendererFlip flip){

    SDL_Rect srcRect;
    SDL_Rect destRect;
    srcRect.x = 0;
    srcRect.y = 0;
    srcRect.w = destRect.w = width;
    srcRect.h = destRect.h = height;
    destRect.x = x;
    destRect.y = y;
    SDL_RenderCopyEx(pRenderer, m_textureMap[id], &srcRect, &destRect, 0, 0, flip);

}


/* DRAW FRAME */
void TextureManager::drawFrame(std::string id, int x, int y, int width, int height, int currentRow, int currentFrame, SDL_Renderer *pRenderer, SDL_RendererFlip flip){

    SDL_Rect srcRect;
    SDL_Rect destRect;
    srcRect.x = width * currentFrame;
    srcRect.y = height * (currentRow - 1);
    srcRect.w = destRect.w = width;
    srcRect.h = destRect.h = height;
    destRect.x = x;
    destRect.y = y;
    SDL_RenderCopyEx(pRenderer, m_textureMap[id], &srcRect, &destRect, 0, 0, flip);

}


/* CLEAR TEXTURE */
void TextureManager::clearFromTextureMap(std::string id)
{
    m_textureMap.erase(id);//enable to clear only texture from current state
}