Added support for selecting mission difficulty

OpenRA.Mods.RA/Widgets/Logic/MissionBrowserLogic.cs

@@ -27,6 +27,7 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 		readonly ScrollPanelWidget descriptionPanel;
 		readonly LabelWidget description;
 		readonly SpriteFont descriptionFont;
+		readonly DropDownButtonWidget difficultyButton;
 		readonly ButtonWidget startVideoButton;
 		readonly ButtonWidget stopVideoButton;
 		readonly VqaPlayerWidget videoPlayer;
@@ -39,6 +40,8 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 
 		bool showVideoPlayer;
 
+		string difficulty;
+
 		[ObjectCreator.UseCtor]
 		public MissionBrowserLogic(Widget widget, Action onStart, Action onExit)
 		{
@@ -67,6 +70,8 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 			description = descriptionPanel.Get<LabelWidget>("MISSION_DESCRIPTION");
 			descriptionFont = Game.Renderer.Fonts[description.Font];
 
+			difficultyButton = widget.Get<DropDownButtonWidget>("DIFFICULTY_DROPDOWNBUTTON");
+
 			startVideoButton = widget.Get<ButtonWidget>("START_VIDEO_BUTTON");
 			stopVideoButton = widget.Get<ButtonWidget>("STOP_VIDEO_BUTTON");
 			stopVideoButton.IsVisible = () => showVideoPlayer;
@@ -176,6 +181,28 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 			description.Bounds.Height = descriptionFont.Measure(text).Y;
 			descriptionPanel.ScrollToTop();
 			descriptionPanel.Layout.AdjustChildren();
+
+			difficultyButton.IsVisible = () => map.Options.Difficulties.Any();
+			if (!map.Options.Difficulties.Any())
+				return;
+
+			difficulty = map.Options.Difficulties.First();
+			difficultyButton.OnMouseDown = _ =>
+			{
+				var options = map.Options.Difficulties.Select(d => new DropDownOption
+				{
+					Title = d,
+					IsSelected = () => difficulty == d,
+					OnClick = () => difficulty = d
+				});
+				Func<DropDownOption, ScrollItemWidget, ScrollItemWidget> setupItem = (option, template) =>
+				{
+					var item = ScrollItemWidget.Setup(template, option.IsSelected, option.OnClick);
+					item.Get<LabelWidget>("LABEL").GetText = () => option.Title;
+					return item;
+				};
+				difficultyButton.ShowDropDown("LABEL_DROPDOWN_TEMPLATE", options.Count() * 30, options, setupItem);
+			};
 		}
 
 		void StopVideo()
@@ -202,6 +229,7 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 			Action lobbyReady = null;
 			lobbyReady = () =>
 			{
+				om.IssueOrder(Order.Command("difficulty {0}".F(difficulty)));
 				Game.LobbyInfoChanged -= lobbyReady;
 				onStart();
 				om.IssueOrder(Order.Command("state {0}".F(Session.ClientState.Ready)));
@@ -210,5 +238,12 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 
 			om = Game.JoinServer(IPAddress.Loopback.ToString(), Game.CreateLocalServer(selectedMapPreview.Uid), "", false);
 		}
+
+		class DropDownOption
+		{
+			public string Title;
+			public Func<bool> IsSelected;
+			public Action OnClick;
+		}
 	}
 }

mods/cnc/chrome/missionbrowser.yaml

@@ -102,6 +102,13 @@ Container@MISSIONBROWSER_PANEL:
 			Height: 35
 			Text: Play
 			Font: Bold
+		DropDownButton@DIFFICULTY_DROPDOWNBUTTON:
+			X: PARENT_RIGHT - 290 - 150
+			Y: 376
+			Width: 140
+			Height: 35
+			Text: Difficulty
+			Font: Bold
 		Container@MISSION_BIN:
 			Children:
 				VqaPlayer@MISSION_VIDEO:

mods/ra/chrome/missionbrowser.yaml

@@ -98,6 +98,13 @@ Background@MISSIONBROWSER_PANEL:
 			Text: Back
 			Font: Bold
 			Key: escape
+		DropDownButton@DIFFICULTY_DROPDOWNBUTTON:
+			X: PARENT_RIGHT - 140 - 130 - 150
+			Y: PARENT_BOTTOM - 45
+			Width: 140
+			Height: 25
+			Text: Difficulty
+			Font: Bold
 		Background@MISSION_BIN:
 			X: 20
 			Y: 50

mods/ra/maps/intervention/intervention.lua

@@ -9,11 +9,21 @@ BeachheadTrigger =
 	CPos.New(137, 104), CPos.New(137, 105), CPos.New(137, 106), CPos.New(136, 106), CPos.New(136, 107)
 }
 
-BaseRaidInterval = DateTime.Minutes(3)
-BaseFrontAttackInterval = DateTime.Minutes(3) + DateTime.Seconds(30)
-BaseRearAttackInterval = DateTime.Minutes(8)
-UBoatPatrolDelay = DateTime.Minutes(2) + DateTime.Seconds(30)
-BaseFrontAttackWpts = { PatrolWpt1.Location, BaseRaidWpt1.Location }
+Difficulty = Map.Difficulty
+
+if Difficulty == "Medium" then
+	BaseRaidInterval = DateTime.Minutes(3)
+	BaseFrontAttackInterval = DateTime.Minutes(3) + DateTime.Seconds(30)
+	BaseRearAttackInterval = DateTime.Minutes(8)
+	UBoatPatrolDelay = DateTime.Minutes(2) + DateTime.Seconds(30)
+	BaseFrontAttackWpts = { PatrolWpt1.Location, BaseRaidWpt1.Location }
+else
+	BaseRaidInterval = DateTime.Minutes(2)
+	BaseFrontAttackInterval = DateTime.Minutes(2) + DateTime.Seconds(30)
+	BaseRearAttackInterval = DateTime.Minutes(5)
+	UBoatPatrolDelay = DateTime.Minutes(2)
+	BaseFrontAttackWpts = { PatrolWpt1.Location }
+end
 
 Village = { FarmHouse1, FarmHouse2, FarmHouse3, FarmHouse4, FarmHouse5, FarmHouse6, FarmHouse7, FarmHouse8, FarmHouse9, Church }
 VillageRaidInterval = DateTime.Minutes(3)

mods/ra/maps/survival01/survival01.lua

@@ -1,4 +1,4 @@
-Difficulty = "Medium"
+Difficulty = Map.Difficulty
 
 if Difficulty == "Easy" then
 	AttackAtFrameIncrement = DateTime.Seconds(22)