Mechanism for showing mission objectives in the ingame menu. Fixes #948.

OpenRA.Game/Traits/TraitsInterfaces.cs

@@ -218,4 +218,6 @@ namespace OpenRA.Traits
     }
 
     public interface ILintPass { void Run(Action<string> emitError); }
+
+	public interface IObjectivesPanel { string ObjectivesPanel { get; } }
 }

OpenRA.Mods.Cnc/Widgets/Logic/CncIngameMenuLogic.cs

@@ -11,13 +11,15 @@
 using System;
 using OpenRA.Mods.RA.Activities;
 using OpenRA.Widgets;
+using OpenRA.Traits;
+using System.Linq;
 
 namespace OpenRA.Mods.Cnc.Widgets.Logic
 {	
 	public class CncIngameMenuLogic
 	{
-		Widget menu;
-		
+		Widget menu, prompt;
+
 		[ObjectCreator.UseCtor]
 		public CncIngameMenuLogic([ObjectCreator.Param] Widget widget,
 		                          [ObjectCreator.Param] World world,
@@ -28,6 +30,8 @@ namespace OpenRA.Mods.Cnc.Widgets.Logic
 			var mpe = world.WorldActor.Trait<CncMenuPaletteEffect>();
 			mpe.Fade(CncMenuPaletteEffect.EffectType.Desaturated);
 			
+			prompt = menu.GetWidget("CONFIRM_PROMPT");
+
 			bool hideButtons = false;
 			menu.GetWidget("MENU_BUTTONS").IsVisible = () => !hideButtons;
 			
@@ -85,12 +89,18 @@ namespace OpenRA.Mods.Cnc.Widgets.Logic
 			};
 
 			menu.GetWidget<ImageWidget>("RECBLOCK").IsVisible = () => world.FrameNumber / 25 % 2 == 0;
+
+			// Mission objectives panel
+			var iop = world.WorldActor.TraitsImplementing<IObjectivesPanel>().FirstOrDefault();
+			if (iop != null && iop.ObjectivesPanel != null)
+			{
+				var obj = Game.LoadWidget(world, iop.ObjectivesPanel, menu.GetWidget("OBJECTIVES_ROOT"), new WidgetArgs());
+				obj.IsVisible = () => !prompt.IsVisible();
+			}
 		}
 		
 		public void PromptConfirmAction(string title, string text, Action onConfirm, Action onCancel)
 		{
-			var prompt = menu.GetWidget("CONFIRM_PROMPT");
-			
 			prompt.GetWidget<LabelWidget>("PROMPT_TITLE").GetText = () => title;
 			prompt.GetWidget<LabelWidget>("PROMPT_TEXT").GetText = () => text;
 			

OpenRA.Mods.RA/ConquestVictoryConditions.cs

@@ -17,7 +17,6 @@ namespace OpenRA.Mods.RA
 	{
 		public string WinNotification = null;
 		public string LoseNotification = null;
-		
 		public object Create(ActorInitializer init) { return new ConquestVictoryConditions(this); }
 	}
 
@@ -86,4 +85,19 @@ namespace OpenRA.Mods.RA
 
 	public class MustBeDestroyedInfo : TraitInfo<MustBeDestroyed> { }
 	public class MustBeDestroyed { }
+
+	// Provides game mode information for players/observers
+	// Goes on WorldActor - observers don't have a player it can live on
+	public class ConquestObjectivesPanelInfo : ITraitInfo
+	{
+		public string ObjectivesPanel = null;
+		public object Create(ActorInitializer init) { return new ConquestObjectivesPanel(this); }
+	}
+
+	public class ConquestObjectivesPanel : IObjectivesPanel
+	{
+		ConquestObjectivesPanelInfo info;
+		public ConquestObjectivesPanel(ConquestObjectivesPanelInfo info) { this.info = info; }
+		public string ObjectivesPanel { get { return info.ObjectivesPanel; } }
+	}
 }

mods/cnc/chrome/ingamemenu.yaml

@@ -79,6 +79,8 @@ Container@INGAME_MENU:
 					Width:140
 					Height:35
 					Text:Resume
+		Container@OBJECTIVES_ROOT:
+			Id:OBJECTIVES_ROOT
 		Container@CONFIRM_PROMPT:
 			Id:CONFIRM_PROMPT
 			X:(WINDOW_RIGHT - WIDTH)/2

mods/cnc/rules/system.yaml

@@ -152,6 +152,8 @@ World:
 		WaterChance: 0
 	PathFinder:
 	ValidateOrder:
+	ConquestObjectivesPanel:
+		ObjectivesPanel: CONQUEST_OBJECTIVES
 
 CRATE:
 	Tooltip: