Fixes && Suggestions (#3)

* Fixes the below:

```c
billard3d.c:2319:41: warning: unused variable ‘cue_start_ball’ [-Wunused-variable]
 2319 |    VMvect dir,cue_start,cue_start_bande,cue_start_ball,nx,ny,pos,hitpoint;
      |                                         ^~~~~~~~~~~~~~
billard3d.c:2319:15: warning: unused variable ‘cue_start’ [-Wunused-variable]
 2319 |    VMvect dir,cue_start,cue_start_bande,cue_start_ball,nx,ny,pos,hitpoint;
      |               ^~~~~~~~~
billard3d.c: In function ‘init_player_roster’:
billard3d.c:2574:5: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation]
 2574 |     if(getenv("USER"))
      |     ^~
billard3d.c:2576:9: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’
 2576 |         strcpy(player[0].name,getenv("USER"));
      |         ^~~~~~
billard3d.c: In function ‘Key’:
billard3d.c:6506:25: warning: statement with no effect [-Wunused-value]
 6506 |           options_pause == 0;
      |           ~~~~~~~~~~~~~~^~~~
```

* - Fix include path for freetype2/ft2build.h
- Drop freetype2/freetypeftoutln.h as it does not exist in recent
  versions of `freetype2`

* Compiling with `FAST_MATH` using a modern GCC and LD vers results with:
```
/usr/bin/ld: billard3d.c:(.text+0x4d79): undefined reference to `fastcos'
/usr/bin/ld: billard3d.c:(.text+0x4dbe): undefined reference to `fastsin'
```

Set to `no` by default for now.

* Util script for GNU build toolchain invocation

* Synlink to MD.

* README fixes

* A few more README modifications

* .

* .

* Rearranged README sections

* A few more touches

* Illustration images

* Add images to README.

* .

* More screen images

* Add more screen images

* Added Jesse to `AUTHORS`

* CI

* .

* `libpng-dev` is the package name for recent Ubuntu versions

* invoke `configure` && `make`

* use `pkg-config` since freetype-config is deprecated.

* Creation of desktop file needs to happen before copying it

* fix typo

* fix header safeguard typo

* .

* - Same font as status for player name and score
- Show number of balls pocketed by player when player 8 ball
- Orange rather than blue for non-active player name and score
- Fix some compiler warnings
- Introduced UK English locale (mostly because of the spelling of the
  word 'colour')

* - options_language size 5 to accommodate languages with multiple locales
- use '-' as separator for locales since '_' is currently replaced by space

* bigger size

* - avoid `sprintf()` overflow warnings
- freetype/ftoutln.h is needed for `FT_Outline_Decompose()`

* be more generous with size allocation to avoid `-Wformat-overflow=` warnings

* Remove `inline` from function declarations as they are in fact defined
in `vmath.c`

---------

Co-authored-by: Jesse Portnoy <[email protected]>

.github/workflows/ci.yml

@@ -0,0 +1,42 @@
+name: GitHub CI
+
+on: [push, pull_request]
+
+defaults:
+  run:
+    shell: 'bash -Eeuo pipefail -x {0}'
+
+jobs:
+  build-and-test:
+    name: Build and Test
+    runs-on: ubuntu-22.04
+    strategy:
+      fail-fast: false
+      matrix:
+        compiler: [clang-12, gcc-10]
+    env:
+      CC: ${{ matrix.compiler }}
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Dependencies
+        run: |
+          sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
+          sudo apt-get update -qq
+          sudo apt-get install -y \
+            build-essential \
+            pkg-config \
+            clang-12 \
+            gcc-10 \
+            libglu1-mesa-dev \
+            libfreetype6-dev \
+            libpng-dev \
+            libsdl1.2-dev \
+            libsdl-net1.2-dev \
+            libsdl-mixer1.2-dev
+      - name : Build
+        run: ./buildme.sh ${{ matrix.confargs }}
+      - name : Install
+        run : |
+          sudo make install
+      - name : Smoke test
+        run : ldd /usr/games/foobillardplus/bin/foobillardplus 

.gitignore

@@ -41,4 +41,4 @@ src/stamp-h1
 # Mac specific things
 .DS_Store
 xcuserdata/
-homebrew/
+homebrew/

AUTHORS

@@ -4,4 +4,4 @@ Robert Brandl - Windows port with MinGW/Msys
 Julian Mayer - Apple Mac Port
 Alrusdi - Russian localisation
 Émeric Dupont - Patches and fixes
-
+Jesse Portnoy - Patches and fixes, README additions

LICENSE

@@ -0,0 +1 @@
+COPYING

Makefile.am

@@ -23,6 +23,7 @@ dist-hook:
 	cp -p $(srcdir)/ChangeLog $(distdir)
 	cp -p $(srcdir)/TODO $(distdir)
 	cp -p $(srcdir)/OFL.txt $(distdir)
+	echo -e "[Desktop Entry]\nVersion=1.0\nType=Application\nTerminal=false\nIcon=/usr/share/icons/foobillardplus.png\nName=Foobillard++\nExec=$(bindir)/foobillardplus\nComment=OpenGL Billiard Game\nGenericName=OpenGL Billiard Game\n" > foobillardplus.desktop
 	cp -p $(srcdir)/foobillardplus.desktop $(distdir)
 	cp -p $(srcdir)/foobillardplus.desktop /usr/share/applications
 	cp -p $(srcdir)/foobillardplus.png $(distdir)
@@ -39,11 +40,11 @@ install-data-hook:
 	cp -p $(srcdir)/ChangeLog $(datarootdir)
 	cp -p $(srcdir)/TODO $(datarootdir)
 	cp -p $(srcdir)/OFL.txt $(datarootdir)
+	echo -e "[Desktop Entry]\nVersion=1.0\nType=Application\nTerminal=false\nIcon=/usr/share/icons/foobillardplus.png\nName=Foobillard++\nExec=$(bindir)/foobillardplus\nComment=OpenGL Billiard Game\nGenericName=OpenGL Billiard Game\n" > foobillardplus.desktop
 	cp -p $(srcdir)/foobillardplus.desktop $(datarootdir)
 	cp -p $(srcdir)/foobillardplus.png $(datarootdir)
 	cp -p $(srcdir)/foobillardplus.png /usr/share/icons
 	cp -p $(srcdir)/foobillardplus.xbm $(datarootdir)
-	echo -e "[Desktop Entry]\nVersion=1.0\nType=Application\nTerminal=false\nIcon=/usr/share/icons/foobillardplus.png\nName=Foobillard++\nExec=$(bindir)/foobillardplus\nComment=OpenGL Billiard Game\nGenericName=OpenGL Billiard Game\n" >/usr/share/applications/foobillardplus.desktop
 
 uninstall-hook:
 	rm $(datarootdir) -R

README

@@ -0,0 +1 @@
+README.md