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SDL Game Development

You're reading from   SDL Game Development If you're good with C++ and object oriented programming, this book utilizes your skills to create 2D games using the Simple DirectMedia Layer API. Practical tutorials include the development of two wickedly good games.

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Product type Paperback
Published in Jun 2013
Publisher Packt
ISBN-13 9781849696821
Length 256 pages
Edition 1st Edition
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Author (1):
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Shaun Mitchell Shaun Mitchell
Author Profile Icon Shaun Mitchell
Shaun Mitchell
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Toc

Table of Contents (16) Chapters Close

Loading other states from an XML file


Our MainMenuState class now loads from an XML file. We need to make our other states do the same. We will only cover the code that has changed, so assume that everything else has remained the same when following through this section.

Loading the play state

We will start with PlayState.cpp and its onEnter function.

bool PlayState::onEnter()
{
  // parse the state
  StateParser stateParser;
  stateParser.parseState("test.xml", s_playID, &m_gameObjects, 
  &m_textureIDList);

  std::cout << "entering PlayState\n";
  return true;
}

We must also add the new texture clearing code that we had in MainMenuState to the onExit function.

// clear the texture manager
for(int i = 0; i < m_textureIDList.size(); i++)
{
  TheTextureManager::Instance()->
  clearFromTextureMap(m_textureIDList[i]);
}

These are the only alterations that we will need to do here but we must also update our XML file to have something to load in PlayState.

<PLAY>
<TEXTURES...
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