pack-mode-switcher.sh

#!/bin/bash

# Colors
RED=$(tput setaf 1)
GREEN=$(tput setaf 2)
YELLOW=$(tput setaf 3)
POWDER_BLUE=$(tput setaf 153)
MAGENTA=$(tput setaf 5)
NORMAL=$(tput sgr0)

touch .mode
set -e

NORMAL_CFG='./config-overrides/normal'
HARDMODE_CFG='./config-overrides/hardmode'
EXPERT_CFG='./config-overrides/expert'
TARGET='./config'

# Check if config-overrides dir exists
if ! ([ -d "${NORMAL_CFG}" ] && [ -d "${HARDMODE_CFG}" ] && [ -d "${EXPERT_CFG}" ]); then
  printf "\n\n${RED}Could not find \`config-overrides\` directory! \nMake sure you are in the \`/minecraft\` directory of your instance! (The one containing \`/config\`)${NORMAL}\n"
  printf "${YELLOW}Otherwise, if you are in the \`/minecraft\` directory, please try reinstalling the pack.${NORMAL}\n"
  exit 1
fi

if [ -z "$1" ]; then
  CURRENT_MODE="$(head .mode)"
  CURRENT_MODE=${CURRENT_MODE:="normal"}
  # Capitalise First Letter (only works in bash 4+)
  if ((BASH_VERSINFO[0] >= 4 )); then
    CURRENT_MODE=${CURRENT_MODE^}
  fi

  if [ -t 0 ]; then
    # Interactive stdin
    printf "${POWDER_BLUE}Monifactory | Pack Mode Switcher${NORMAL}"
    printf "\n\n${YELLOW}Current Mode: ${CURRENT_MODE}${NORMAL}\n"
    printf "${POWDER_BLUE}Set Pack Mode:\nN: Normal    (The Default mode) \nH: Hardmode  (Adds more lines and progression, removes HNN and Monicoin spending) \nE: Expert    (A modifier for Hardmode, enables some of the more extreme GTm settings among other things) \nSelection: [Normal / Hardmode / Expert]:"
    read MODE
  else
    # Non interactive stdin
    echo $CURRENT_MODE
    exit 0
  fi
else
  MODE="$1"
fi

function move_server_properties () {
  # Only copy server.properties if it exists.
  mv "$TARGET/server.properties" ./ 2> /dev/null || true
} 

case $MODE in
    N|n|normal|Normal)

    cp -rf "$NORMAL_CFG/." ${TARGET}
    move_server_properties

    # Update Mode
    echo normal > .mode
  ;;

  H|h|hardmode|Hardmode)

    cp -rf "$HARDMODE_CFG/." ${TARGET}
    move_server_properties

    # Update Mode
    echo hard > .mode
  ;;

  E|e|expert|Expert)

    cp -rf "$HARDMODE_CFG/." ${TARGET}
    cp -rf "$EXPERT_CFG/." ${TARGET}
    move_server_properties

    # Update Mode
    echo expert > .mode
  ;;

  *)
    printf "\n${RED}Error: Invalid input ${MODE}!${NORMAL}\n"
    printf "\n${POWDER_BLUE}Accepted Inputs:\n${YELLOW}- [Normal, normal, N, n]\n- [Hardmode, hardmode, H, h]\n- [Expert, expert, E, e]${NORMAL}\n"
    exit 1
  ;;
esac

if [ -t 0 ]; then
  # Interactive stdin
  printf "${GREEN}Switched pack mode to $(cat .mode)!${NORMAL}\n"
else
  # Explicitly signify success
  exit 0
fi