Fix savegame not loading and improve build

Dockerfile

@@ -28,7 +28,7 @@ RUN git clone --depth 1 --branch jgrpp-$OPENTTD_JGR_VERSION https://github.com/J
 
 WORKDIR /openttd/source
 RUN mkdir build && cd build && \
-    cmake .. -DCMAKE_BUILD_TYPE=Release && \
+    cmake .. -DCMAKE_BUILD_TYPE=Release -DOPTION_DEDICATED=ON && \
     make -j$(nproc)
 
 FROM alpine:latest

docker-compose.yml

@@ -4,8 +4,9 @@ services:
     container_name: openttd-jgr
     volumes:
       - ./save:/root/.openttd/save
-      # - ./content:/root/.openttd/content
-      # - ./config:/root/.openttd
+      - ./content:/root/.openttd/content_download
+      - ./openttd.cfg:/root/.openttd/openttd.cfg
+      - ./private.cfg:/root/.openttd/private.cfg
     ports:
       - "3979:3979/udp"
       - "3979:3979/tcp"

start.sh

@@ -1,9 +1,12 @@
 #!/bin/sh
-SAVE_FILE="/root/.openttd/save/autosave/latest.sav"
+SAVE_DIR="/root/.openttd/save"
+LATEST_SAVE=$(ls -rt ${SAVE_DIR}/autosave/ | tail -n1)
+ABSOLUTE_SAVE="$SAVE_DIR/autosave/$LATEST_SAVE"
 
-if [ -f "$SAVE_FILE" ]; then
-    echo "Loading savegame: $SAVE_FILE"
-    exec /openttd/openttd -D -g autosave/latest.sav
+
+if [ -f "$ABSOLUTE_SAVE" ]; then
+    echo "Loading savegame: $LATEST_SAVE"
+    exec /openttd/openttd -D -g $ABSOLUTE_SAVE
 else
     echo "No savegame found. Starting new game."
     exec /openttd/openttd -D