[+] Add kotlin support

build.gradle

@@ -1,6 +1,8 @@
 plugins {
     // Apply the application plugin to add support for building a CLI application in Java.
     id 'application'
+    id "org.jetbrains.kotlin.jvm" version "1.7.21"
+    id "org.openjfx.javafxplugin" version "0.0.13"
 }
 
 repositories {
@@ -13,6 +15,11 @@ dependencies {
     implementation 'com.google.guava:guava:31.0.1-jre'
 }
 
+javafx {
+    version = "11.0.2"
+    modules = ['javafx.controls', 'javafx.graphics']
+}
+
 testing {
     suites {
         // Configure the built-in test suite
@@ -23,6 +30,14 @@ testing {
     }
 }
 
+compileKotlin {
+    kotlinOptions.jvmTarget = "11"
+}
+
+compileTestKotlin {
+    kotlinOptions.jvmTarget = "11"
+}
+
 application {
     // Define the main class for the application.
     mainClass = 'Mars'