make UnloadCargo.unloadAll configurable; go back to all by default

OpenRA.Mods.RA/Activities/UnloadCargo.cs

@@ -18,6 +18,10 @@ namespace OpenRA.Mods.RA.Activities
 {
 	public class UnloadCargo : Activity
 	{
+		bool unloadAll;
+
+		public UnloadCargo(bool unloadAll) { this.unloadAll = unloadAll; }
+		
 		CPos? ChooseExitTile(Actor self, Actor cargo)
 		{
 			// is anyone still hogging this tile?
@@ -99,7 +103,7 @@ namespace OpenRA.Mods.RA.Activities
 				actor.SetTargetLine(Target.FromCell(rallyPoint), Color.Green, false);
 			});
 
-			return NextActivity;
+			return unloadAll ? this : NextActivity;
 		}
 	}
 }

OpenRA.Mods.RA/Cargo.cs

@@ -81,7 +81,7 @@ namespace OpenRA.Mods.RA
 					return;
 
 				self.CancelActivity();
-				self.QueueActivity(new UnloadCargo());
+				self.QueueActivity(new UnloadCargo(true));
 			}
 		}
 

OpenRA.Mods.RA/Missions/Allies01Script.cs

@@ -236,7 +236,7 @@ namespace OpenRA.Mods.RA.Missions
             chinook.QueueActivity(new HeliFly(insertionLZ.CenterLocation));
             chinook.QueueActivity(new Turn(0));
             chinook.QueueActivity(new HeliLand(true));
-            chinook.QueueActivity(new UnloadCargo());
+            chinook.QueueActivity(new UnloadCargo(true));
             chinook.QueueActivity(new CallFunc(() => Sound.Play("laugh1.aud")));
             chinook.QueueActivity(new Wait(150));
             chinook.QueueActivity(new HeliFly(chinookExitPoint.CenterLocation));