4160Project/imageFactory.cpp at master · tbreck/4160Project · GitHub

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#include "ioMod.h"
#include "vector2f.h"
#include "renderContext.h"

ImageFactory& ImageFactory::getInstance() {
  static ImageFactory factory;
  return factory;
}

ImageFactory::~ImageFactory() {
  std::cout << "Deleting images in Factory" << std::endl;
  map<std::string, SDL_Surface*>::iterator s = surfaces.begin();
  map<std::string, SDL_Texture*>::iterator t = textures.begin();
  map<std::string, Image*>::iterator i  = images.begin();

  while (s != surfaces.end()) {
    SDL_FreeSurface( s->second );
    ++s;
  }
  while (t != textures.end()) {
    SDL_DestroyTexture( t->second );
    ++t;
  }
  while (i != images.end()) {
    delete i->second;
    ++i;
  }
  // Free multi-image containers
  for ( auto& surfaces : multiSurfaces ) {
    for (unsigned int i = 0; i < surfaces.second.size(); ++i) {
      SDL_FreeSurface( surfaces.second[i] );
    }
  }
  for ( auto& textures : multiTextures ) {
    for (unsigned int i = 0; i < textures.second.size(); ++i) {
      SDL_DestroyTexture( textures.second[i] );
    }
  }

  for ( auto& images : multiImages ) {
    std::cout << "deleting " << images.first << std::endl;
    for (unsigned int i = 0; i < images.second.size(); ++i) {
      delete images.second[i];
    }
  }
}

Image* ImageFactory::getImage(const std::string& name) {
  std::map<std::string, Image*>::const_iterator it = images.find(name);
  if ( it == images.end() ) {
    SDL_Surface * const surface =
      IoMod::getInstance().readSurface( gdata.getXmlStr(name+"/file"));
    bool transparency = gdata.getXmlBool(name+"/transparency");
    if ( transparency ) {
      int keyColor = SDL_MapRGBA(surface->format, 255, 0, 255, 255);
      SDL_SetColorKey(surface, SDL_TRUE, keyColor);
    }
    surfaces[name] = surface;
    Image * const image =new Image(surface);
    images[name] = image;
    return image;
  }
  else {
    return it->second;
  }
}


std::vector<Image*> ImageFactory::getImages(const std::string& name) {
  // First search map to see if we've already made it:
  std::map<std::string, std::vector<Image*> >::const_iterator
    pos = multiImages.find(name);
  if ( pos != multiImages.end() ) {
    return pos->second;
  }

  IoMod& iomod = IoMod::getInstance();
  RenderContext* renderContext  = RenderContext::getInstance();
  std::string sheetPath = gdata.getXmlStr(name+"/file");
  SDL_Surface* spriteSurface = iomod.readSurface(sheetPath);
  bool transparency = gdata.getXmlBool(name+"/transparency");

  // It wasn't in the map, so we have to make the vector of Images:
  unsigned numberOfFrames = gdata.getXmlInt(name+"/frames");
  std::vector<Image*> images;
  std::vector<SDL_Surface*> surfaces;
  std::vector<SDL_Texture*> textures;
  images.reserve(numberOfFrames);
  surfaces.reserve(numberOfFrames);
  textures.reserve(numberOfFrames);

  int width = spriteSurface->w/numberOfFrames;
  int height = spriteSurface->h;

  if(  gdata.checkTag(name+"/imageWidth")
    && gdata.checkTag(name+"/imageHeight") ){
    width  = gdata.getXmlInt(name+"/imageWidth");
    height = gdata.getXmlInt(name+"/imageHeight");
  }

  SpriteSheet sheet(spriteSurface,width,height);

  for (unsigned i = 0; i < numberOfFrames; ++i) {
    SDL_Surface* surface = sheet[i];
    if ( transparency ) {
      int keyColor = SDL_MapRGBA(spriteSurface->format, 255, 0, 255, 255);
      SDL_SetColorKey(surface, SDL_TRUE, keyColor);
    }
    SDL_Texture* texture =
      SDL_CreateTextureFromSurface(renderContext->getRenderer(),surface);
    surfaces.push_back( surface );
    textures.push_back( texture );
    images.push_back( new Image(surface) );
  }
  multiSurfaces[name] = surfaces;
  multiTextures[name] = textures;
  multiImages[name] = images;
  return images;
}