Add linmath submodule

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "deps/linmath.h"]
+	path = deps/linmath.h
+	url = https://github.com/datenwolf/linmath.h

BUILDING.md

@@ -1,6 +1,22 @@
 # Building instructions
 
-The code and the Makefile are located in the src/ directory
+GNU make is used for compiling. The code and the Makefile are located in the src/ directory.
+
+## Dependencies
+To build anything you need g++ and GNU make.
+```bash
+sudo apt install build-essential make
+```
+
+The development versions OpenGL, GLFW3, GLEW are required to build the client.
+```bash
+sudo apt install libgl1-mesa-dev libglfw3-dev libglew-dev
+```
+
+When building the client, don't forget to pull the submodules before building.
+``bash
+git submodule update --init
+```
 
 ## Available targets
 - `all` (default)
@@ -9,9 +25,9 @@ The code and the Makefile are located in the src/ directory
 - `clean`
 - `clobber`
 
-Debug flag (`-g`) is set by default.
+The debug flag (`-g`) is set by default (RELEASE=TRUE will disable it).
 
-## Release Build
+## Release
 ```bash
 ./release.sh
 ```

README.md

@@ -26,3 +26,10 @@ All positions are signed integers (`s32`)
 - `invalid`: unknown nodes received from server
 
 Interrupt handlers for SIGINT und SIGTERM are implemented.
+
+## Dependencies
+
+The client depends on GLFW3, OpenGL and GLEW.
+```bash
+sudo apt install libgl1-mesa-dri libglfw3 libglew2.1
+```

deps/linmath.h

@@ -0,0 +1 @@
+Subproject commit 05387571f57224f8cbc2b390b423dab6b9158988

release.sh

@@ -4,7 +4,7 @@ cd .build/src
 make clobber && make all RELEASE=TRUE -j$(nproc) && make clean
 cp Dragonblocks DragonblocksServer ..
 cd ..
-rm -rf src BUILDING.md .git* release.sh DragonblocksAlpha-*.zip
+rm -rf .git* deps src BUILDING.md release.sh DragonblocksAlpha-*.zip
 cd ..
 mv .build DragonblocksAlpha
 zip DragonblocksAlpha-`git rev-parse --short HEAD` DragonblocksAlpha/*

src/Makefile

@@ -18,7 +18,7 @@ DragonblocksServer: $(SERVER)
 	cc $(FLAGS) -o DragonblocksServer $(SERVER) $(LIBRARIES)
 
 %.o: %.c
-	cc $(FLAGS) -o $@ -c -Wall -Wextra -Wpedantic -Werror $<
+	cc $(FLAGS) -o $@ -c -Wall -Wextra -Wpedantic -Werror -isystem ../deps $<
 
 clean:
 	rm -rf *.o

src/client.c

@@ -8,6 +8,7 @@
 #include <GL/glew.h>
 #include <GL/gl.h>
 #include <GLFW/glfw3.h>
+#include <linmath.h/linmath.h>
 #include "client.h"
 #include "signal.h"
 #include "util.h"

src/types.h

@@ -28,15 +28,6 @@ DEFTYPES(16)
 DEFTYPES(32)
 DEFTYPES(64)
 
-typedef float f32;
-typedef double f64;
-
-DEFVEC(f32)
-DEFVEC(f64)
-
-typedef v2f32 v2f;
-typedef v3f32 v3f;
-
 #undef DEFRW
 #undef DEFVEC
 #undef DEFTYP