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Getting started

Windows

There is an installer for Windows OS. You can view its source code and guide from here.

Or you can download it directly. Then if you wish you can view launchers' guide.

Linux

There is an installer script (v1) for Unix based OS.

1. Create a folder to put files in it.
2. Create a file named "installer.sh" in the folder.
3. Copy the code below, and paste into it.
4. Open the terminal in the specified folder, and type chmod +x installer.sh (This code will give the execution permissions to the script.)
5. Run the script by typing ./installer.sh or sudo ./installer.sh to avoid any permission problem.
6. Enjoy :)

#!/bin/bash
cd "$(dirname "$(readlink -fn "$0")")"

NONE="0m"

RED="0;31m"
RED_BOLD="1;31m"

GREEN="0;32m"
GREEN_BOLD="1;32m"

YELLOW="0;33m"
YELLOW_BOLD="1;33m"

CYAN="0;36m"
CYAN_BOLD="1;36m"

print(){
	echo $3 -e "\033[$2$1\033[$NONE"

	if [ -n "$4" ]; then
		echo $4
	fi
}

print "Core Launcher Installer Script for Linux v1" $CYAN_BOLD
print "\nLooking for Java... " $YELLOW_BOLD -n

_GetJsonProperty(){

	local wg=$(wget -q -O - "$1")
	local var=$(echo $wg | grep -o "\"$2\":\s*\"[^\"]*\"" | awk -F'":' '{print $2}' | tr -d '",' | awk '{$1=$1;print}')
	echo "$var"
}

_DownloadJava(){
# Looking for architecture

	architecture=$(uname -m)
	if [ "$architecture" == "x86_64" ]; then
		architecture="x64"
	fi

	url="https://api.adoptium.net/v3/assets/latest/17/hotspot?os=linux&image_type=jdk&architecture=""$architecture"

	print "Getting information from Adoptium: " $YELLOW_BOLD -n $url

	sd=$( _GetJsonProperty "$url" link )

	print "\nDownloading Java: " $GREEN_BOLD -n $sd

	wget -O "java.tar.gz" "$sd"
	mkdir java
	tar -xzf "java.tar.gz" -C "java" --strip-components 1
	rm "java.tar.gz"

	print "Java successfully installed on $(dirname $0)/java" $CYAN_BOLD
}

work=$(pwd)

JAVA_VER=$(java -version 2>&1 >/dev/null | grep -E "\S+\s+version" | awk '{print $3}' | tr -d '"' | awk -F. '{print $1}')

if [ -z "$JAVA_VER" ] || [ "$JAVA_VER" -lt "17" ]; then
	if [ ! -f "java/bin/java" ]; then
		print "You do not have the required Java!" $RED
		_DownloadJava
	else
		print "Found local." $GREEN_BOLD
	fi
	
	# java is the son of java
	JAVA="java/bin/java"
	JAVA_VER="17"
else
	JAVA="java"
	print "Found." $GREEN_BOLD
fi

print "Current Java Version: " $YELLOW_BOLD -n $JAVA_VER

print "Acquiring the latest version of the launcher..." $YELLOW_BOLD

lnk=$( _GetJsonProperty "https://laeben-update-default-rtdb.europe-west1.firebasedatabase.app/apps/clauncher.json" latestFile )

print "Downloading the latest version of the launcher: " $GREEN_BOLD -n $lnk

wget -O "CoreLauncher.jar" "$lnk"

script="start.sh"

echo -e '#!/bin/bash\ncd "$(dirname "$(readlink -fn "$0")")"' > $script
echo "$JAVA"" -jar CoreLauncher.jar" >> $script

chmod +x start.sh

dsk="CoreLauncher.desktop"

echo -e "[Desktop Entry]\nName=Core Launcher\nType=Application\nTerminal=false\nExec=\"$work/start.sh\"\nPath=$work" > $dsk

chmod a+x $dsk

gio set $dsk metadata::trusted true

print "\n\nA .desktop file created to allow you to start the launcher easily, you have to move it to your desktop directory before using. You can delete it if you want." $RED
print "Installation completed, press a key to start the launcher, or terminate." $CYAN_BOLD
read -n 1 -s

./start.sh

exit 0

˅˅˅˅ Looking for a manual guide? Look below.... ˅˅˅˅

Downloading Java

Core Launcher works with Java 17. You have to download it and add it to the system path variable.

If you have an earlier version of Java:

You have many options.

• You can delete it.
• You can remove it from the system path variable.
• You can use a launch script. (see Creating a Launch Script)

Downloading Java 17

1. Go to Java 17 Download Page
2. Download (JDK or JRE) and install it based on your OS.
3. Check the path variable after installation. (It should be like .../jre|jdk 17.../bin)

Downloading Launcher

You can download the latest version of the launcher from its website.

Notice: In my opinion, you should create a new folder for the launcher, because it creates a config.json and all of your settings are stored in this file. You don't want to lose it :)

Run

You have two options to run the launcher.

1. Using a launch script. (see Creating a Launch Script)
2. Clicking on the JAR twice. (Yup, like a normal app.)

Creating a Launch Script

java -jar CoreLauncher.jar

Create a file (Unix .sh, MacOS .command, Windows .bat) and paste this code into it.

You can replace java with a custom Java 17 path. (".../...jre|jdk 17.../bin/java.exe")

On Unix, you need to add

#!/bin/sh
cd "$(dirname "$(readlink -fn "$0")")"

MacOS, you need to add

#!/bin/bash
cd "$(dirname "$0")"

to the beginning of the script.

If you didn't change the launchers' JAR path, the launch script and launcher must be in the same directory.

Usage

CLI Commands

--profile

--profile "profile name"

Starts the launcher directly with the selected profile without opening any GUI.

--launch

--launch "profile name"

Starts the launcher directly with the selected profile, and opens a GUI based on the Don't Use GUI On Shortcuts setting.

--offline

Starts the launcher in offline mode.

Making The Launcher Portable

See here.

More

Page-by-page documentation is here.

Developers

Extension API documentation is here.