[Editor] Enable generating constant with UID in MapHandler classes

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/service/JavaClassService.kt

@@ -30,7 +30,12 @@ class JavaClassService {
    fun ofPath(path: String): String = ofPath(Path.of(path))
    fun ofPath(path: Path): String = path.joinToString(".")
 
-   fun createClassFile(name: String, directory: FileSystemNode, classTemplate: String) {
+   fun createClassFile(
+      name: String,
+      directory: FileSystemNode,
+      classTemplate: String,
+      inflate: (MutableMap<String, String>) -> Unit = {}
+   ) {
       projectContext.project?.let { project ->
          val template = config.getTemplate(classTemplate)
 
@@ -42,7 +47,7 @@ class JavaClassService {
 
          project.codeFSNode.createNode(classFile.toRelativeString(project.codeFSNode.file))
 
-         val model = mapOf("className" to className, "package" to classPackage)
+         val model = mutableMapOf("className" to className, "package" to classPackage).apply(inflate).toMap()
          template.process(model, classFile.writer())
       }
    }

editor/src/main/kotlin/com/bartlomiejpluta/base/editor/project/context/DefaultProjectContext.kt

@@ -39,6 +39,7 @@ import tornadofx.setValue
 import java.io.File
 import java.io.FileInputStream
 import java.io.FileOutputStream
+import java.util.*
 
 @Component
 class DefaultProjectContext : ProjectContext {
@@ -102,7 +103,11 @@ class DefaultProjectContext : ProjectContext {
             it.maps += asset
 
             save()
-            javaClassService.createClassFile(map.handler, it.codeFSNode, "map_handler.ftl")
+
+            javaClassService.createClassFile(map.handler, it.codeFSNode, "map_handler.ftl") { model ->
+               model["mapUid"] = uid
+            }
+
             File(it.mapsDirectory, asset.source).outputStream().use { fos -> mapSerializer.serialize(map, fos) }
          }
       }
@@ -250,7 +255,7 @@ class DefaultProjectContext : ProjectContext {
    override fun loadScript(fileNode: FileNode, execute: ((String) -> Unit)?, saveable: Boolean): Code {
       val typeProperty = SimpleObjectProperty<CodeType>().apply {
          bind(createObjectBinding({
-            when (fileNode.extension.toLowerCase()) {
+            when (fileNode.extension.lowercase(Locale.getDefault())) {
                "java" -> CodeType.JAVA
                "xml" -> CodeType.XML
                "sql" -> CodeType.SQL

editor/src/main/resources/java_templates/map_handler.ftl

@@ -7,6 +7,7 @@ import com.bartlomiejpluta.base.api.map.handler.MapHandler;
 import com.bartlomiejpluta.base.api.screen.Screen;
 
 public class ${className} implements MapHandler {
+   public static final String UID = "${mapUid}";
 
    @Override
    public void onCreate(Context context, GameMap map) {