Test hot reloading

compile

@@ -1,9 +1,46 @@
 #!/bin/bash
 
-CC=clang
-CFLAGS="-g -Wall $(pkg-config --cflags sdl2)"
-LIBS="$(pkg-config --libs sdl2)"
-SRC=src/*.c
-OUT=main
+BUILD_TYPE="debug"
 
-(set -x ; $CC $CFLAGS $LIBS $SRC -o $OUT)
+while [[ $# > 0 ]];do
+  case $1 in
+    --release)
+      BUILD_TYPE="release"
+      shift
+      ;;
+    *|-*|--*)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+CC=clang
+CFLAGS="-Wall $(pkg-config --cflags sdl2)"
+LIBS="$(pkg-config --libs sdl2)"
+MAIN=src/main.c
+MAIN_FLAGS=""
+GAME=src/game.c
+GAME_FLAGS="-DNDEBUG"
+OUT=main
+GAME_OUT=""
+
+if [[ $BUILD_TYPE == "debug" ]]; then
+	CFLAGS+=" -g"
+	MAIN_FLAGS="-ldl -Wl,-rpath,\$ORIGIN"
+	GAME_FLAGS+=" -fPIC -shared"
+	GAME_OUT="-o game.so"
+	MAIN+=" src/game.c"
+else
+	CFLAGS+=" -O3"
+	MAIN_FLAGS="-DNDEBUG"
+	GAME_FLAGS+=" -c"
+	MAIN+=" game.o"
+fi
+
+LOCKFILE="game.so.lock"
+touch $LOCKFILE && (set -x ; $CC $CFLAGS $GAME_FLAGS $LIBS $GAME $GAME_OUT)
+if [[ -f $LOCKFILE ]];then
+	rm $LOCKFILE
+fi
+(set -x ; $CC $CFLAGS $MAIN_FLAGS $LIBS $MAIN -o $OUT)