diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/editor/CodeSnippetFragment.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/editor/CodeSnippetFragment.kt
new file mode 100644
index 00000000..39bc8e97
--- /dev/null
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/editor/CodeSnippetFragment.kt
@@ -0,0 +1,38 @@
+package com.bartlomiejpluta.base.editor.code.view.editor
+
+import com.bartlomiejpluta.base.editor.code.viewmodel.CodeVM
+import tornadofx.*
+
+class CodeSnippetFragment : Fragment("Enter code") {
+   private val editor = find<CodeSnippetView>()
+   private val codeVM = find<CodeVM>()
+
+   private var onCompleteConsumer: ((String) -> Unit)? = null
+
+   fun onComplete(consumer: (String) -> Unit) {
+      this.onCompleteConsumer = consumer
+   }
+
+   override val root = borderpane {
+      setPrefSize(640.0, 480.0)
+
+      center = editor.root
+
+      bottom = buttonbar {
+         button("Apply") {
+            action {
+               onCompleteConsumer?.let { it(codeVM.code) }
+               editor.shutdown()
+               close()
+            }
+         }
+
+         button("Cancel") {
+            action {
+               editor.shutdown()
+               close()
+            }
+         }
+      }
+   }
+}
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/editor/CodeSnippetView.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/editor/CodeSnippetView.kt
new file mode 100644
index 00000000..c5cdb995
--- /dev/null
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/code/view/editor/CodeSnippetView.kt
@@ -0,0 +1,73 @@
+package com.bartlomiejpluta.base.editor.code.view.editor
+
+import com.bartlomiejpluta.base.editor.code.component.CodeEditor
+import com.bartlomiejpluta.base.editor.code.highlighting.JavaSyntaxHighlighter
+import com.bartlomiejpluta.base.editor.code.highlighting.SqlSyntaxHighlighter
+import com.bartlomiejpluta.base.editor.code.highlighting.XmlSyntaxHighlighter
+import com.bartlomiejpluta.base.editor.code.model.CodeScope
+import com.bartlomiejpluta.base.editor.code.model.CodeType
+import com.bartlomiejpluta.base.editor.code.viewmodel.CodeVM
+import com.bartlomiejpluta.base.editor.file.model.DummyFileNode
+import com.bartlomiejpluta.base.editor.file.model.FileSystemNode
+import com.bartlomiejpluta.base.editor.file.model.InMemoryStringFileNode
+import com.bartlomiejpluta.base.editor.file.model.ScriptAssetFileNode
+import javafx.beans.binding.Bindings
+import org.kordamp.ikonli.javafx.FontIcon
+import tornadofx.*
+
+class CodeSnippetView : View() {
+   override val scope = super.scope as CodeScope
+
+   private val javaSyntaxHighlighter: JavaSyntaxHighlighter by di()
+   private val xmlSyntaxHighlighter: XmlSyntaxHighlighter by di()
+   private val sqlSyntaxHighlighter: SqlSyntaxHighlighter by di()
+
+   private val codeVM = find<CodeVM>()
+
+   private val highlighter = Bindings.createObjectBinding({
+      when (codeVM.type!!) {
+         CodeType.JAVA -> javaSyntaxHighlighter
+         CodeType.XML -> xmlSyntaxHighlighter
+         CodeType.SQL -> sqlSyntaxHighlighter
+      }
+   }, codeVM.typeProperty)
+
+   private val editable = Bindings.createBooleanBinding(
+      { codeVM.fileNode is FileSystemNode || codeVM.fileNode is ScriptAssetFileNode || codeVM.fileNode is InMemoryStringFileNode || codeVM.fileNode is DummyFileNode },
+      codeVM.itemProperty
+   )
+
+   private val editor = CodeEditor(highlighter, codeVM.codeProperty, !editable.value)
+
+   init {
+      scope.caretDisplacementRequestListener = { line, column ->
+         editor.setCaretPosition(line, column)
+      }
+   }
+
+   fun shutdown() {
+      editor.shutdownHighlighterThread()
+      codeVM.fileNode
+   }
+
+   override val root = borderpane {
+      top = toolbar {
+
+         button(graphic = FontIcon("fa-undo")) {
+            enableWhen(editable)
+            action { undo() }
+         }
+
+         button(graphic = FontIcon("fa-repeat")) {
+            enableWhen(editable)
+            action { redo() }
+         }
+      }
+
+      center = editor
+   }
+
+   fun redo() = editor.redo()
+
+   fun undo() = editor.undo()
+}
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/file/model/DummyFileNode.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/file/model/DummyFileNode.kt
new file mode 100644
index 00000000..2f5d6915
--- /dev/null
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/file/model/DummyFileNode.kt
@@ -0,0 +1,45 @@
+package com.bartlomiejpluta.base.editor.file.model
+
+import javafx.beans.value.ObservableLongValue
+import javafx.beans.value.ObservableValue
+
+class DummyFileNode : FileNode {
+   override val nameProperty: ObservableValue<String>
+      get() = throw UnsupportedOperationException()
+
+   override val name: String
+      get() = throw UnsupportedOperationException()
+
+   override val extensionProperty: ObservableValue<String>
+      get() = throw UnsupportedOperationException()
+
+   override val extension: String
+      get() = throw UnsupportedOperationException()
+
+   override val nameWithoutExtensionProperty: ObservableValue<String>
+      get() = throw UnsupportedOperationException()
+
+   override val nameWithoutExtension: String
+      get() = throw UnsupportedOperationException()
+
+   override val absolutePathProperty: ObservableValue<String>
+      get() = throw UnsupportedOperationException()
+
+   override val absolutePath: String
+      get() = throw UnsupportedOperationException()
+
+   override val type: FileType
+      get() = throw UnsupportedOperationException()
+
+   override val parent: FileNode
+      get() = throw UnsupportedOperationException()
+
+   override val children: Iterable<FileNode>
+      get() = throw UnsupportedOperationException()
+
+   override val lastModifiedProperty: ObservableLongValue
+      get() = throw UnsupportedOperationException()
+
+   override val lastModified: Long
+      get() = throw UnsupportedOperationException()
+}
\ No newline at end of file
diff --git a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/canvas/ObjectPaintingTrace.kt b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/canvas/ObjectPaintingTrace.kt
index b70d9525..41cdbd6a 100644
--- a/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/canvas/ObjectPaintingTrace.kt
+++ b/editor/src/main/kotlin/com/bartlomiejpluta/base/editor/map/canvas/ObjectPaintingTrace.kt
@@ -1,5 +1,11 @@
 package com.bartlomiejpluta.base.editor.map.canvas
 
+import com.bartlomiejpluta.base.editor.code.model.Code
+import com.bartlomiejpluta.base.editor.code.model.CodeScope
+import com.bartlomiejpluta.base.editor.code.model.CodeType
+import com.bartlomiejpluta.base.editor.code.view.editor.CodeSnippetFragment
+import com.bartlomiejpluta.base.editor.code.viewmodel.CodeVM
+import com.bartlomiejpluta.base.editor.file.model.DummyFileNode
 import com.bartlomiejpluta.base.editor.map.model.brush.BrushMode
 import com.bartlomiejpluta.base.editor.map.model.layer.ObjectLayer
 import com.bartlomiejpluta.base.editor.map.model.obj.MapObject
@@ -9,6 +15,9 @@ import com.bartlomiejpluta.base.editor.map.viewmodel.GameMapVM
 import com.bartlomiejpluta.base.editor.render.input.MapMouseEvent
 import javafx.collections.ObservableList
 import javafx.scene.input.MouseButton
+import tornadofx.find
+import tornadofx.setInScope
+import tornadofx.toProperty
 
 class ObjectPaintingTrace(val map: GameMapVM, override val commandName: String) : PaintingTrace {
    private lateinit var objects: ObservableList<MapObject>
@@ -37,12 +46,47 @@ class ObjectPaintingTrace(val map: GameMapVM, override val commandName: String)
    }
 
    private fun createOrUpdateObject() {
-      newObject = MapObject(x, y, "")
-      objects.remove(formerObject)
-      objects.add(newObject)
-      executed = true
+      showCodeDialog(formerObject?.code ?: initialCode)?.let {
+         newObject = MapObject(x, y, it)
+         objects.remove(formerObject)
+         objects.add(newObject)
+         executed = true
+      }
    }
 
+   private fun showCodeDialog(initialContent: String): String? {
+      val scope = CodeScope(1, 1)
+      val code = Code(DummyFileNode(), CodeType.JAVA.toProperty(), initialContent)
+      val vm = CodeVM(code)
+      setInScope(vm, scope)
+
+      var content: String? = null
+
+      find<CodeSnippetFragment>(scope).apply {
+         title = "Define object"
+
+         onComplete {
+            content = it
+         }
+
+         openModal(block = true)
+      }
+
+      return content
+   }
+
+   private val initialCode: String
+      get() = """
+         // In this place you can implement some logic 
+         // that will be evaluated for selected location.
+         // Following references are available:
+         // int x - the x coordinate
+         // int y - the y coordinate
+         // Runner runner - the game runner
+         // Context context - the game context
+         // Handler handler - current map handler
+      """.trimIndent()
+
    private fun moveObject(newX: Int, newY: Int) {
       if (newY >= map.rows || newX >= map.columns || newY < 0 || newX < 0) {
          return