glouw / littlewolf Goto Github PK
View Code? Open in Web Editor NEWA tiny software graphics and game engine
Home Page: http://glouw.com/2018/03/11/littlewolf.html
License: MIT License
A tiny software graphics and game engine
Home Page: http://glouw.com/2018/03/11/littlewolf.html
License: MIT License
I was trying to run makefile and I got an error that says;
gcc -std=c99 -Wall -Wextra -pedantic -Ofast -flto -march=native -lm -lSDL2 main.c -o littlewolf
c:/mingw/bin/../lib/gcc/mingw32/6.3.0/../../../libmingw32.a(main.o):(.text.startup+0xa0): undefined reference to `WinMain@16'
collect2.exe: error: ld returned 1 exit status
make: *** [Makefile:12: all] Error 1
Any help would be appreciated. Thanks.
Hi @glouw,
Is it possible to build littlewolf using Visual Studio 2015 or above?
I'm attempting to build and run on Ubuntu Server 19.04 with libsdl2-dev and having problems -
Running make
returns errors for various math and SDL2 references.
$ make && ./littlewolf
gcc -std=c99 -Wall -Wextra -pedantic -Ofast -flto -march=native -lm -lSDL2 main.c -o littlewolf
/usr/bin/ld: /tmp/cc3tV3Ld.ltrans0.ltrans.o: in function `main':
<artificial>:(.text.startup+0x2a): undefined reference to `SDL_Init'
/usr/bin/ld: <artificial>:(.text.startup+0x51): undefined reference to `SDL_CreateWindow'
/usr/bin/ld: <artificial>:(.text.startup+0x68): undefined reference to `SDL_CreateRenderer'
/usr/bin/ld: <artificial>:(.text.startup+0xa5): undefined reference to `SDL_CreateTexture'
/usr/bin/ld: <artificial>:(.text.startup+0x126): undefined reference to `SDL_PollEvent'
/usr/bin/ld: <artificial>:(.text.startup+0x159): undefined reference to `SDL_GetKeyboardState'
/usr/bin/ld: <artificial>:(.text.startup+0x19f): undefined reference to `cosf'
/usr/bin/ld: <artificial>:(.text.startup+0x1b0): undefined reference to `sinf'
/usr/bin/ld: <artificial>:(.text.startup+0x27c): undefined reference to `SDL_GetTicks'
/usr/bin/ld: <artificial>:(.text.startup+0x2e1): undefined reference to `SDL_LockTexture'
/usr/bin/ld: <artificial>:(.text.startup+0x32b): undefined reference to `sinf'
/usr/bin/ld: <artificial>:(.text.startup+0x757): undefined reference to `SDL_UnlockTexture'
/usr/bin/ld: <artificial>:(.text.startup+0x7a0): undefined reference to `SDL_RenderCopyEx'
/usr/bin/ld: <artificial>:(.text.startup+0x7a8): undefined reference to `SDL_RenderPresent'
/usr/bin/ld: <artificial>:(.text.startup+0x7ad): undefined reference to `SDL_GetTicks'
/usr/bin/ld: <artificial>:(.text.startup+0x7c3): undefined reference to `SDL_Delay'
/usr/bin/ld: <artificial>:(.text.startup+0x8f7): undefined reference to `sincosf'
/usr/bin/ld: <artificial>:(.text.startup+0xabf): undefined reference to `SDL_GetError'
collect2: error: ld returned 1 exit status
make: *** [Makefile:12: all] Error 1
For some reason changing the order of the arguments slightly allows it to compile, but it fails at runtime. SDL_CreateWindow
appears to return NULL
-
$ gcc -std=c99 -Wall -Wextra -pedantic -Ofast -flto -march=native main.c -o littlewolf -lm -lSDL2 && ./littlewolf
Invalid renderer
Any advice?
Thanks!
It would be great if littlewolf could map textures onto the walls, ceilings and floor.
I get a seg fault when I try to run it: in color () at main.c:311
Since this engine is pretty uncomplicated I ported it to Power Mac under SDL 1.2 (now you can compile -DSDL1
to get an SDL 1.2 version, assuming you have SDLMain.m
). I can do this as a PR if you're interested; if not, I'll do this in a repository of my own.
Just an ease of use suggestion. I found that using h and l is kind of uncomfortable. I think changing them to left and right would be a little better.
Hi, in the README it sais both SDL2 and SDL2dev should work.
I had libsdl2-2.0-0 installed but it did not work so i installed sdl2-dev and it worked.
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