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[SDL2]-3D Ray Casting Demo-Need Some Help!
JeZ-l-Lee


Joined: 20 Sep 2009
Posts: 572
Location: Long Island, New York, United States, Earth
Post Posted: Thu May 14, 2015 8:49 am
[SDL2]-3D Ray Casting Demo-Need Some Help!

Hi,

We found some source code for an SDL2 ray casting demo.
We have incorporated it into our cross-platform SDL2 game engine.

Our issue now is it won't build on Linux?
(builds fine on Windows)

You can download the entire project below:
http://16bitsoft.com/files/3dRayCasting/Demo/3dRayCasting-Demo.zip

Any help fixing errors on Linux would be appreciated!

[SDL2]-3D Ray Casting Demo-Need Some Help!
Jonny D


Joined: 12 Sep 2009
Posts: 932
Post Posted: Thu May 14, 2015 2:36 pm
What errors are you getting?  Are they specific to SDL or is this just a request for help in general?

Jonny D






On Thu, May 14, 2015 at 4:49 AM, JeZ-l-Lee wrote:
Quote:
[SDL2]-3D Ray Casting Demo-Need Some Help!

Hi,

We found some source code for an SDL2 ray casting demo.
We have incorporated it into our cross-platform SDL2 game engine.

Our issue now is it won't build on Linux?
(builds fine on Windows)

You can download the entire project below:
http://16bitsoft.com/files/3dRayCasting/Demo/3dRayCasting-Demo.zip

Any help fixing errors on Linux would be appreciated!





JeZxLee
JessePalser <AT> GMail <DOT> com
16BitSoft Inc.
Video Game Design Studio
www.16BitSoft.com


_______________________________________________
SDL mailing list

http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org

JeZ-l-Lee


Joined: 20 Sep 2009
Posts: 572
Location: Long Island, New York, United States, Earth
Post Posted: Thu May 14, 2015 3:11 pm
Hi,

Just asking for general help building on Linux.

Here are the errors in Linux terminal:
Code:
jezxlee@Thin-Client:~/Desktop/VM-SHARE/3dRayCasting-Demo$ make
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/main.cpp -o src/main.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/audio.cpp -o src/audio.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/data.cpp -o src/data.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/input.cpp -o src/input.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/interface.cpp -o src/interface.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/logic.cpp -o src/logic.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/screens.cpp -o src/screens.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/visuals.cpp -o src/visuals.o
g++ src/main.o src/audio.o src/data.o src/input.o src/interface.o src/logic.o src/screens.o src/visuals.o -L/usr/lib/x86_64-linux-gnu -lSDL2  -lSDL2_ttf -lSDL2_image -lSDL2_mixer -o lf
src/logic.o: In function `__static_initialization_and_destruction_0':
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:106: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:107: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:108: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:109: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:110: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
src/logic.o:/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:111: more undefined references to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)' follow
src/screens.o: In function `Screens::DisplayPlayingGameScreenRayCast()':
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/screens.cpp:2097: undefined reference to `InstantCG::ColorRGB::ColorRGB()'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/screens.cpp:2107: undefined reference to `InstantCG::operator/(InstantCG::ColorRGB const&, int)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/screens.cpp:2109: undefined reference to `InstantCG::verLine(int, int, int, InstantCG::ColorRGB const&)'
src/screens.o: In function `__static_initialization_and_destruction_0':
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:106: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:107: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:108: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:109: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:110: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
src/screens.o:/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:111: more undefined references to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)' follow
collect2: error: ld returned 1 exit status
makefile:46: recipe for target 'lf' failed
make: *** [lf] Error 1
jezxlee@Thin-Client:~/Desktop/VM-SHARE/3dRayCasting-Demo$

It builds fine with Code::Blocks on Windows, just does not build on Linux.

Thanks!
[SDL2]-3D Ray Casting Demo-Need Some Help!
Paul Wortmann
Guest
Post Posted: Thu May 14, 2015 3:40 pm
I tried to build it on Linux using your Code::Blocks project file and got a linker error.
I set the linker settings correctly in Code::Blocks and was able to build and run your application, although some code warnings were observed.
You probably want to fix those warnings, and maybe run it through Valgrind, I have a feeling your application has a few more problems.....
I don't think you should be linking -lmingw32 on Linux.I only linked against  lSDL2  lSDL2_ttf lSDL2_image and lSDL2_mixer.
Why not setup separate build profiles for different systems?
The build output I got was: (with correct linker settings)


||=== Build: Release in 3dRayCasting (compiler: GNU GCC Compiler) ===|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp||In member function ‘void Data::ClearHighScores()’Neutral
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|119|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|118|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|127|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|126|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|135|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|134|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|143|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|142|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|151|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|150|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|159|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|158|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|167|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|166|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|175|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|174|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|183|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|182|note: containing loop|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|191|warning: iteration 19u invokes undefined behavior [-Waggressive-loop-optimizations]|
/home/paul/Desktop/3dRayCasting-Demo/src/data.cpp|190|note: containing loop|
||=== Build finished: 0 error(s), 10 warning(s) (0 minute(s), 1 second(s)) ===|






On Fri, May 15, 2015 at 12:11 AM, JeZ-l-Lee wrote:
Quote:
Hi,

Just asking for general help building on Linux.

Here are the errors in Linux terminal:



Code:

jezxlee@Thin-Client:~/Desktop/VM-SHARE/3dRayCasting-Demo$ make
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/main.cpp -o src/main.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/audio.cpp -o src/audio.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/data.cpp -o src/data.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/input.cpp -o src/input.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/interface.cpp -o src/interface.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/logic.cpp -o src/logic.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/screens.cpp -o src/screens.o
g++ -pipe -Wall -g  -I/usr/include/SDL2 -D_REENTRANT -c src/visuals.cpp -o src/visuals.o
g++ src/main.o src/audio.o src/data.o src/input.o src/interface.o src/logic.o src/screens.o src/visuals.o -L/usr/lib/x86_64-linux-gnu -lSDL2  -lSDL2_ttf -lSDL2_image -lSDL2_mixer -o lf
src/logic.o: In function `__static_initialization_and_destruction_0':
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:106: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:107: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:108: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:109: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:110: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
src/logic.o:/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:111: more undefined references to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)' follow
src/screens.o: In function `Screens::DisplayPlayingGameScreenRayCast()':
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/screens.cpp:2097: undefined reference to `InstantCG::ColorRGB::ColorRGB()'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/screens.cpp:2107: undefined reference to `InstantCG::operator/(InstantCG::ColorRGB const&, int)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/screens.cpp:2109: undefined reference to `InstantCG::verLine(int, int, int, InstantCG::ColorRGB const&)'
src/screens.o: In function `__static_initialization_and_destruction_0':
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:106: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:107: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:108: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:109: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:110: undefined reference to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)'
src/screens.o:/home/jezxlee/Desktop/VM-SHARE/3dRayCasting-Demo/src/instantcg.h:111: more undefined references to `InstantCG::ColorRGB::ColorRGB(unsigned char, unsigned char, unsigned char)' follow
collect2: error: ld returned 1 exit status
makefile:46: recipe for target 'lf' failed
make: *** [lf] Error 1
jezxlee@Thin-Client:~/Desktop/VM-SHARE/3dRayCasting-Demo$



It builds fine with Code::Blocks on Windows, just does not build on Linux.

Thanks!



JeZxLee
JessePalser <AT> GMail <DOT> com
16BitSoft Inc.
Video Game Design Studio
www.16BitSoft.com


_______________________________________________
SDL mailing list

http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org





--
Paul Wortmann
E-mail :
Website: www.physhexgames.co.nr
JeZ-l-Lee


Joined: 20 Sep 2009
Posts: 572
Location: Long Island, New York, United States, Earth
Post Posted: Thu May 14, 2015 4:22 pm
Hi,

Thanks...

We are building on Linux with included makefile and get those errors.
Here is the makefile we are using:
Code:
# "LettersFall[TM]" - MAKEFILE by JeZxLee & mattmatteh...
# (C)opyright 2015 By www.16BitSoft.com

TARGET = lf

VERSION = 5.0

DEL_FILE = rm -f

CC      = g++
CFLAGS = -pipe -Wall -g #-"ggdb"
SDL_CFLAGS = $(shell sdl2-config --cflags)
SDL_LIBS = $(shell sdl2-config --libs)

SDL_TTF_LIBS   = -lSDL2_ttf
SDL_IMAGE_LIBS   = -lSDL2_image
SDL_MIXER_LIBS  = -lSDL2_mixer

OBJECTS = src/main.o \
          src/audio.o \
          src/data.o \
          src/input.o \
          src/interface.o \
          src/logic.o \
          src/screens.o \
          src/visuals.o

SOURCES = src/main.cpp \
          src/audio.cpp \
          src/data.cpp \
          src/input.cpp \
          src/interface.cpp \
          src/logic.cpp \
          src/screens.cpp \
          src/visuals.cpp

HEADERS = src/audio.h \
          src/data.h \
          src/input.h \
          src/interface.h \
          src/logic.h \
          src/screens.h \
          src/visuals.h

$(TARGET): $(OBJECTS)
   $(CC) $(OBJECTS) $(SDL_LIBS) $(SDL_TTF_LIBS) $(SDL_IMAGE_LIBS) $(SDL_MIXER_LIBS) -o $@

.cpp.o:
   $(CC) $(CFLAGS) $(SDL_CFLAGS) -c $< -o $@

clean:
   rm $(OBJECTS) $(TARGET)

Is there something wrong with above makefile?

Thanks!
[SDL2]-3D Ray Casting Demo-Need Some Help!
Paul Wortmann
Guest
Post Posted: Thu May 14, 2015 4:32 pm
you forgot  instantcg.h / cpp / o in your make file, if I add, it builds.


On Fri, May 15, 2015 at 1:22 AM, JeZ-l-Lee wrote:
Quote:
Hi,

Thanks...

We are building on Linux with included makefile and get those errors.
Here is the makefile we are using:



Code:

# "LettersFall[TM]" - MAKEFILE by JeZxLee & mattmatteh...
# (C)opyright 2015 By www.16BitSoft.com

TARGET = lf

VERSION = 5.0

DEL_FILE = rm -f

CC      = g++
CFLAGS = -pipe -Wall -g #-"ggdb"
SDL_CFLAGS = $(shell sdl2-config --cflags)
SDL_LIBS = $(shell sdl2-config --libs)

SDL_TTF_LIBS   = -lSDL2_ttf
SDL_IMAGE_LIBS   = -lSDL2_image
SDL_MIXER_LIBS  = -lSDL2_mixer

OBJECTS = src/main.o \
          src/audio.o \
          src/data.o \
          src/input.o \
          src/interface.o \
          src/logic.o \
          src/screens.o \
          src/visuals.o

SOURCES = src/main.cpp \
          src/audio.cpp \
          src/data.cpp \
          src/input.cpp \
          src/interface.cpp \
          src/logic.cpp \
          src/screens.cpp \
          src/visuals.cpp

HEADERS = src/audio.h \
          src/data.h \
          src/input.h \
          src/interface.h \
          src/logic.h \
          src/screens.h \
          src/visuals.h

$(TARGET): $(OBJECTS)
   $(CC) $(OBJECTS) $(SDL_LIBS) $(SDL_TTF_LIBS) $(SDL_IMAGE_LIBS) $(SDL_MIXER_LIBS) -o $@

.cpp.o:
   $(CC) $(CFLAGS) $(SDL_CFLAGS) -c $< -o $@

clean:
   rm $(OBJECTS) $(TARGET)



Is there something wrong with above makefile?

Thanks!



JeZxLee
JessePalser <AT> GMail <DOT> com
16BitSoft Inc.
Video Game Design Studio
www.16BitSoft.com


_______________________________________________
SDL mailing list

http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org





--
Paul Wortmann
E-mail :
Website: www.physhexgames.co.nr
[SDL2]-3D Ray Casting Demo-Need Some Help!
Jonny D


Joined: 12 Sep 2009
Posts: 932
Post Posted: Thu May 14, 2015 4:52 pm
I'll second that by saying that's exactly what the makefile's command line output and linker error messages say the problem is.

Jonny D



On Thu, May 14, 2015 at 12:32 PM, Paul Wortmann wrote:
Quote:
you forgot  instantcg.h / cpp / o in your make file, if I add, it builds.


On Fri, May 15, 2015 at 1:22 AM, JeZ-l-Lee wrote:


Quote:
Hi,

Thanks...

We are building on Linux with included makefile and get those errors.
Here is the makefile we are using:



Code:

# "LettersFall[TM]" - MAKEFILE by JeZxLee & mattmatteh...
# (C)opyright 2015 By www.16BitSoft.com

TARGET = lf

VERSION = 5.0

DEL_FILE = rm -f

CC      = g++
CFLAGS = -pipe -Wall -g #-"ggdb"
SDL_CFLAGS = $(shell sdl2-config --cflags)
SDL_LIBS = $(shell sdl2-config --libs)

SDL_TTF_LIBS   = -lSDL2_ttf
SDL_IMAGE_LIBS   = -lSDL2_image
SDL_MIXER_LIBS  = -lSDL2_mixer

OBJECTS = src/main.o \
          src/audio.o \
          src/data.o \
          src/input.o \
          src/interface.o \
          src/logic.o \
          src/screens.o \
          src/visuals.o

SOURCES = src/main.cpp \
          src/audio.cpp \
          src/data.cpp \
          src/input.cpp \
          src/interface.cpp \
          src/logic.cpp \
          src/screens.cpp \
          src/visuals.cpp

HEADERS = src/audio.h \
          src/data.h \
          src/input.h \
          src/interface.h \
          src/logic.h \
          src/screens.h \
          src/visuals.h

$(TARGET): $(OBJECTS)
   $(CC) $(OBJECTS) $(SDL_LIBS) $(SDL_TTF_LIBS) $(SDL_IMAGE_LIBS) $(SDL_MIXER_LIBS) -o $@

.cpp.o:
   $(CC) $(CFLAGS) $(SDL_CFLAGS) -c $< -o $@

clean:
   rm $(OBJECTS) $(TARGET)



Is there something wrong with above makefile?

Thanks!



JeZxLee
JessePalser <AT> GMail <DOT> com
16BitSoft Inc.
Video Game Design Studio
www.16BitSoft.com




_______________________________________________
SDL mailing list

http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org





--
Paul Wortmann
E-mail :
Website: www.physhexgames.co.nr



_______________________________________________
SDL mailing list

http://lists.libsdl.org/listinfo.cgi/sdl-libsdl.org

Re: [SDL2]-3D Ray Casting Demo-Need Some Help!
JeZ-l-Lee


Joined: 20 Sep 2009
Posts: 572
Location: Long Island, New York, United States, Earth
Post Posted: Fri May 15, 2015 8:49 am
Paul Wortmann wrote:
you forgot instantcg.h / cpp / o in your make file, if I add, it builds.
Hi!

That was the problem!
Now it builds on Linux!

Thanks!