--- a/src/cEffects.cpp
+++ b/src/cEffects.cpp
@@ -180,7 +180,6 @@
 	{
 		if(!i->update())
 			i=lEffects.erase(i);
-		if(i==NULL)break;
 	}
 
     for(p=lParticles.begin();p!=lParticles.end();++p)
@@ -190,8 +189,6 @@
 		if(!p->active())
 		{
 			p=lParticles.erase(p);
-			if(p==NULL)
-				break;
 		}
 	}
 
--- a/src/cFont.cpp
+++ b/src/cFont.cpp
@@ -62,7 +62,7 @@
 }
 
 ///lädt einen TTF-Font ein
-bool cFont::load(char *path,int size)
+bool cFont::load(const char *path,int size)
 {
 	font = TTF_OpenFont(path,size);
 	if(font==NULL)
--- a/src/cFont.h
+++ b/src/cFont.h
@@ -34,7 +34,7 @@
 	static void		delInstance();
 	static bool		initttf();
 
-	bool			load(char *path,int size);
+	bool			load(const char *path,int size);
 	void			setcolor(int r,int g,int b);
 	void			setshader(int r,int g,int b);
 	void			print(SDL_Surface *screen,int posx,int posy,const char *fmt, ...);
--- a/src/cParticleSys.cpp
+++ b/src/cParticleSys.cpp
@@ -81,9 +81,6 @@
 		if(time-p->getstarttime()>p->getlifetime())
 		{
 			p=lParticles.erase(p);
-			if(p==NULL)
-				break;
-			
 		}
 	}
 
--- a/src/cSound.cpp
+++ b/src/cSound.cpp
@@ -92,7 +92,7 @@
 }
 
 ///spielt eine ogg-datei ab
-bool cSound::playogg(char *path)
+bool cSound::playogg(const char *path)
 {
 	if(!sound_on)
 		return true;
--- a/src/cSound.h
+++ b/src/cSound.h
@@ -35,7 +35,7 @@
 
 	bool			init();
 	void				close();
-	bool			playogg(char *path);
+	bool			playogg(const char *path);
 	void				stopogg();
 	bool			loadwav(int index,char *path);
 	void				playwav(int index);
--- a/src/cSprite.cpp
+++ b/src/cSprite.cpp
@@ -29,7 +29,7 @@
 
 ///lädt ein BMP in das image-Surface
 ///gibt false zurück falls es schief geht
-bool cSprite::loadBMP(char *path)
+bool cSprite::loadBMP(const char *path)
 {
 	image=SDL_LoadBMP(path);
 	if(!image)
@@ -73,4 +73,4 @@
 int cSprite::getheight()
 {
 	return image->h;
-}
\ No newline at end of file
+}
--- a/src/cSprite.h
+++ b/src/cSprite.h
@@ -26,7 +26,7 @@
 	cSprite();
 	~cSprite();
 
-	bool 	loadBMP(char *path);
+	bool 	loadBMP(const char *path);
 	void 	render(SDL_Surface *screen,int x,int y);
 	void 	setColorKey(int r,int g,int b);
 
--- a/src/cSpriteAnim.cpp
+++ b/src/cSpriteAnim.cpp
@@ -145,7 +145,7 @@
 }
 
 ///einladen einer Animation aus einer Datei
-bool cSpriteAnim::load(char *path)
+bool cSpriteAnim::load(const char *path)
 {
 	FILE 	*file;
 	char	buffer[512];
@@ -248,4 +248,4 @@
 {
 	if(anim==NULL)return -1;
 	return gfx_sprite[anim->getAct()].getwidth();
-}
\ No newline at end of file
+}
--- a/src/cSpriteAnim.h
+++ b/src/cSpriteAnim.h
@@ -53,7 +53,7 @@
 	cSpriteAnim();
 	~cSpriteAnim();
 
-	bool	load(char *path);
+	bool	load(const char *path);
 	void	setColorKey(int r,int g,int b);
 	void	render(SDL_Surface *screen,cAnim *anim,int x,int y);
 	int		getMaxNum();
--- a/src/cUtil.cpp
+++ b/src/cUtil.cpp
@@ -85,7 +85,7 @@
 }
 
 ///liest einen wert aus einer config-datei
-char* cUtil::getconfigvalue(char *path,char *value)
+char* cUtil::getconfigvalue(const char *path,const char *value)
 {
 	FILE	*file;
 	char	buffer[512];
--- a/src/cUtil.h
+++ b/src/cUtil.h
@@ -31,7 +31,7 @@
 
 	void	updatetime();
 	float 	sync(float Faktor);
-	char*	getconfigvalue(char *path,char *value);
+	char*	getconfigvalue(const char *path,const char *value);
 	void	drawpixel(SDL_Surface *screen, int x, int y,Uint8 R, Uint8 G,Uint8 B);
 	bool	collision(SDL_Rect objekt1,SDL_Rect objekt2);	
 
--- a/src/mmgr.cpp
+++ b/src/mmgr.cpp
@@ -59,6 +59,7 @@
 #include <time.h>
 #include <stdarg.h>
 #include <new>
+using namespace std;
 
 #ifndef	WIN32
 #include <unistd.h>