TextureManager.cpp

#include "TextureManager.h"

TextureManager* TextureManager::s_pInstance= 0;

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);

    //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;
}

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);
}

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);
}