Support initial tutorial code

src/state/editor_screen/code_panel.rs

@@ -26,7 +26,7 @@ pub fn spawn_code_panel(commands: &mut Commands, config: &EditorScreenConfig) ->
         .spawn((
             Name::new("CodePanelText"),
             TextBundle::from_section(
-                "// Start typing to generate lines of code!\n\n",
+                "// Start typing to generate lines of code!\n",
                 TextStyle {
                     font: FONT_HANDLE,
                     color: config.code_panel_text_color,
@@ -35,7 +35,7 @@ pub fn spawn_code_panel(commands: &mut Commands, config: &EditorScreenConfig) ->
             ),
             FontSize::new(config.code_panel_font_size),
             CodeTyper {
-                lines_count: 3,
+                lines_count: 2,
                 lines_max: config.code_panel_lines_max,
                 ..default()
             },

src/ui/code_typer.rs

@@ -1,3 +1,4 @@
+use std::iter::Chain;
 use std::iter::Cycle;
 use std::str::Chars;
 
@@ -14,14 +15,15 @@ impl Plugin for CodeTyperPlugin {
     }
 }
 
+const TUTORIAL_CODE: &str = "// You can spend lines to add_plugins from the upgrade panel\n\n";
 const FILLER_CODE: &str = include_str!("code_typer.rs");
 
 // Newtype so that CodeTyper can derive Reflect
-pub struct CodeGenerator(Cycle<Chars<'static>>);
+pub struct CodeGenerator(Chain<Chars<'static>, Cycle<Chars<'static>>>);
 
 impl Default for CodeGenerator {
     fn default() -> Self {
-        Self(FILLER_CODE.chars().cycle())
+        Self(TUTORIAL_CODE.chars().chain(FILLER_CODE.chars().cycle()))
     }
 }