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Texture Atlas Maker

, 1 Apr 2012
A utility to create texture atlases for 2D OpenGL games
AtlasExample_iphone_project.zip
AtlasExample
.DS_Store
__MACOSX
AtlasExample
._.DS_Store
AtlasExample
.DS_Store
AtlasExample
._.DS_Store
AtlasAppDelegate.mm
AtlasExample-Info.plist
AtlasExample-Prefix.pch
._AtlasExample-Prefix.pch
EAGLView.mm
en.lproj
InfoPlist.strings
en.lproj
._InfoPlist.strings
MainWindow.xib
ImagePNG.mm
._ImagePNG.mm
images0.tga
main.m
._main.m
Shaders
Shader.fsh
Shaders
._Shader.fsh
Shader.vsh
._Shader.vsh
AtlasExample.xcodeproj
project.pbxproj
project.xcworkspace
contents.xcworkspacedata
xcuserdata
lefty.xcuserdatad
UserInterfaceState.xcuserstate
xcuserdata
lefty.xcuserdatad
xcdebugger
Breakpoints.xcbkptlist
xcschemes
AtlasExample.xcscheme
xcschememanagement.plist
AtlasExampleTests
AtlasExampleTests-Info.plist
AtlasExampleTests-Prefix.pch
AtlasExampleTests
._AtlasExampleTests-Prefix.pch
AtlasExampleTests.m
._AtlasExampleTests.m
en.lproj
InfoPlist.strings
en.lproj
._InfoPlist.strings
AtlasExample_iPhone_project_2.1.zip
.DS_Store
._.DS_Store
.DS_Store
._.DS_Store
AtlasAppDelegate.mm
AtlasExample-Info.plist
AtlasExample-Prefix.pch
._AtlasExample-Prefix.pch
EAGLView.mm
InfoPlist.strings
._InfoPlist.strings
MainWindow.xib
ImagePNG.mm
._ImagePNG.mm
imagesNelly0.tga
main.m
._main.m
Shader.fsh
._Shader.fsh
Shader.vsh
._Shader.vsh
project.pbxproj
contents.xcworkspacedata
UserInterfaceState.xcuserstate
Breakpoints.xcbkptlist
AtlasExample.xcscheme
xcschememanagement.plist
AtlasExampleTests-Info.plist
AtlasExampleTests-Prefix.pch
._AtlasExampleTests-Prefix.pch
AtlasExampleTests.m
._AtlasExampleTests.m
InfoPlist.strings
._InfoPlist.strings
AtlasMaker.zip
AtlasMaker
.classpath
.project
bin
icon.png
images
icon.png
output.png
settings.png
output.png
settings.png
src
AtlasMaker_jar.zip
AtlasMaker_jar_2.0.zip
AtlasMaker_jar_2.1.zip
AtlasMaker_jar_2.2.1.zip
AtlasMaker_jar_2.2.zip
AtlasMaker_source.2.2.1.zip
.classpath
.project
.settings
org.eclipse.jdt.core.prefs
atlasMaker.properties
icon.png
icon.png
settings.png
settings.png
AtlasMaker_source.zip
.classpath
.project
icon.png
icon.png
output.png
settings.png
output.png
settings.png
AtlasMaker_source_2.0.zip
.classpath
.project
atlasMaker.properties
icon.png
icon.png
settings.png
settings.png
AtlasMaker_source_2.1.zip
.classpath
.project
org.eclipse.jdt.core.prefs
atlasMaker.properties
icon.png
icon.png
settings.png
settings.png
AtlasMaker_source_2.2.zip
.classpath
.project
org.eclipse.jdt.core.prefs
icon.png
icon.png
settings.png
settings.png
#ifndef XPARSER_H
#define XPARSER_H

#include "Allocator.h"

// used to parses a text file with number of keys and values  
class XParser 
{
public: 
	XParser() { m_fileSize = 0;}
	~XParser() {}
	void Open(const string& fileName);
	void Open(FILE* pFile);
	int GetLine()
	{
		return m_currLine;
	}
	void ReadNextElement();
	bool IsElement(const char* szComp) const
	{
		return m_elementName.compare(szComp) == 0;
	}
	const string& GetValue(const char* szKey) const;
	bool GetOptionalValue(const char* szKey, string& value) const;
	int GetValueInt(const char* szKey) const
	{
		int num = atoi(GetValue(szKey).c_str());
		return num;
	}
	float GetValueFloat(const char* szKey) const
	{
		#ifdef WIN32
		float num = (float)atof(GetValue(szKey).c_str());
		#else
		float num = strtof(GetValue(szKey).c_str(), NULL);
		#endif
		return num;
	}
	bool GetValueBool(const char* szKey) const
	{
		if (GetValue(szKey) == "true") return true;
		return false;
	}
	int GetOptionalInt(const char* szKey, int defaultValue) const;
	bool EndFileReached() const
	{
		return m_currPos >= m_fileSize;
	}
	bool IsElementOpen(const char* szKey) const
	{
		fmap<string, int>::const_iterator iter;
		iter = m_mapElement.find(szKey);
		if (iter == m_mapElement.end()) return false;
		return iter->second > 0;
	}
	void RestartAt(int currPos)
	{
		m_currPos = currPos;
		m_mapAttrib.clear();
		m_currChar = m_buffer.Get(m_currPos);
		m_mapElement.clear();
	}
	int GetCurrPos() const
	{
		return m_currPos;
	}
private:	
	void GetNextWord(string& token);
	void GetNextValue(string& token);
	void EatWhiteSpace();
	void CheckComment();
	string m_elementName;
	fmap<string, string> m_mapAttrib;
	fmap<string, int> m_mapElement;
	// used for error reporting, each newline increases line count
	int m_currLine;	
	Allocator<char> m_buffer;
	int m_currPos;
	int m_fileSize;
	unsigned char m_currChar;
};

#endif // XPARSER_H

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License

This article, along with any associated source code and files, is licensed under The BSD License

About the Author

ed welch
Software Developer Astronautz
Spain Spain
After working in the software industry for many years, I've started my own games company that specialises in strategy games for mobile platforms.

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Web03 | 2.8.140721.1 | Last Updated 1 Apr 2012
Article Copyright 2012 by ed welch
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