minecraft

#!/bin/bash

#### CONFIG

MC_PATH=/home/minecraft
SCREEN_NAME="minecraft"
USERNAME="minecraft"
MEMALLOC=512
JAR_NAME="craftbukkit.jar"

WORLD_NAME="world"

#### END OF CONFIG

if [ -e $MC_PATH/server.log.lck ]
then
    ONLINE=1
else
    ONLINE=0
fi

display() {
    # screen -R $SCREEN_NAME
    sudo -u $USERNAME tmux attach -t $SCREEN_NAME
}
server_start() {
    echo "Starting Minecraft..."
    
    cd $MC_PATH
    # screen -m -d -S $SCREEN_NAME java -Xmx${MEMALLOC}M -Xms${MEMALLOC}M -jar craftbukkit-1.1-R3.jar nogui
    sudo -u $USERNAME tmux new-session -d -n $SCREEN_NAME -s $SCREEN_NAME "java -Xmx${MEMALLOC}M -Xms${MEMALLOC}M -jar ${JAR_NAME} nogui" 
    sleep 1
}
server_stop() {
    echo "Stopping Minecraft..."

    # screen -S $SCREEN_NAME -p 0 -X stuff "`printf "stop.\r"`"
    sudo -u $USERNAME tmux send -t $SCREEN_NAME stop ENTER
    sleep 5
}


if [ $# -gt 0 ]
then
    case $1 in

    "status")
        if [ $ONLINE -eq 1 ]
        then
            echo "Minecraft seems to be ONLINE."
        else
            echo "Minecraft seems to be OFFLINE."
        fi;;

    "start")
        if [ $ONLINE -eq 1 ]
        then
            echo "Minecraft is already running."

            case $2 in
            "-f")
                sudo -u $USERNAME kill `ps -e | grep java | cut -d " " -f 1`
                sudo -u $USERNAME rm -rf $MC_PATH/*.log.lck 2> /dev/null;;
            esac
        else
            server_start
        fi;;

    "stop")
        if [ $ONLINE -eq 1 ]
        then
            server_stop
        else
            case $2 in
            "-f")
                sudo -u $USERNAME kill `ps -e | grep java | cut -d " " -f 1`
                sudo -u $USERNAME rm -rf $MC_PATH/*.log.lck 2> /dev/null;;
            *)
                echo "Minecraft is already offline."
            esac
        fi;;

    "restart")
        if [ $ONLINE -eq 1 ]
        then
            server_stop
        fi
        server_start;;

    "display")
        display;;

    *)
        echo "Usage: minecraft [<status | start [-f] | stop [-f] | restart | display>]";
    esac

else
    echo "Usage: minecraft [<status | start [-f] | stop [-f] | restart | display>]"
fi

exit 0