feat: Add initial player scene with character models and effects, implement core lobby UI and functionality, and introduce a 3D outline shader.

assets/shaders/outline3d.gdshader

@@ -0,0 +1,21 @@
+shader_type spatial;
+render_mode cull_front, unshaded;
+
+// Controls the width of the outline
+uniform float outline_thickness : hint_range(0.0, 0.5) = 0.03;
+
+// Controls the color of the outline
+uniform vec4 outline_color : source_color = vec4(0.0, 0.0, 0.0, 1.0);
+
+void vertex() {
+	// The core of the inverted hull method:
+	// We push the vertices outward along their normal vectors.
+	// Since front faces are culled, this creates the outline border.
+	VERTEX += NORMAL * outline_thickness;
+}
+
+void fragment() {
+	// Apply the solid outline color
+	ALBEDO = outline_color.rgb;
+	ALPHA = outline_color.a;
+}

assets/shaders/outline3d.gdshader.uid

@@ -0,0 +1 @@
+uid://cc6tnqkwd8iy6

scenes/lobby.gd

@@ -145,6 +145,10 @@ func _ready():
 	refresh_btn.pressed.connect(_on_refresh_pressed)
 	join_btn.pressed.connect(_on_join_pressed)
 	back_btn.pressed.connect(_on_back_pressed)
+	
+	if room_list:
+		room_list.item_selected.connect(_on_room_selected)
+		room_list.item_activated.connect(_on_room_activated)
 	if room_list_profile_btn:
 		room_list_profile_btn.pressed.connect(_on_profile_btn_pressed)
 	
@@ -361,6 +365,24 @@ func _on_refresh_pressed() -> void:
 	room_list.clear()
 	LobbyManager.refresh_room_list()
 
+func _on_room_selected(index: int) -> void:
+	"""Automatically fill the match_id input when a room is clicked so it's not lost on focus change."""
+	if index < LobbyManager.available_rooms.size():
+		var room = LobbyManager.available_rooms[index]
+		if LobbyManager.is_lan_mode:
+			var ip = room.get("ip", "")
+			if not ip.is_empty():
+				match_id_input.text = ip
+		else:
+			var mid = room.get("match_id", "")
+			if not mid.is_empty():
+				match_id_input.text = mid
+
+func _on_room_activated(index: int) -> void:
+	"""Handle double-clicking a room to join immediately."""
+	_on_room_selected(index)
+	_on_join_pressed()
+
 func _on_join_pressed() -> void:
 	var match_id = match_id_input.text.strip_edges()
 	

scenes/player.gd

@@ -439,6 +439,26 @@ func set_character(character_name: String) -> void:
 		# Start with idle animation
 		play_idle_animation()
 		
+	# Apply outline shader to the active character
+	if active_character:
+		_apply_outline_recursive(active_character)
+
+func _apply_outline_recursive(node: Node):
+	if node is MeshInstance3D and node.mesh:
+		for i in range(node.mesh.get_surface_count()):
+			var mat = node.get_active_material(i)
+			if mat:
+				# Only apply if it doesn't already have a next pass
+				if not mat.next_pass:
+					var unique_mat = mat.duplicate()
+					var outline_mat = ShaderMaterial.new()
+					outline_mat.shader = load("res://assets/shaders/outline3d.gdshader")
+					unique_mat.next_pass = outline_mat
+					node.set_surface_override_material(i, unique_mat)
+	
+	for child in node.get_children():
+		_apply_outline_recursive(child)
+
 @rpc("any_peer", "call_local", "reliable")
 func sync_character(character_name: String) -> void:
 	"""Sync character selection across all clients."""