initial buildqueue ai

OpenRA.Mods.RA/World/HackyAI.cs

@@ -1,5 +1,6 @@
 using System.Linq;
 using OpenRA.Traits;
+using System;
 
 namespace OpenRA.Mods.RA
 {
@@ -12,13 +13,40 @@ namespace OpenRA.Mods.RA
 		bool enabled;
 		int ticks;
 		Player p;
+		ProductionQueue pq;
+		bool isBuildingStuff;
+
+		enum BuildState
+		{
+			ChooseItem,
+			WaitForProduction,
+			WaitForFeedback,
+		}
+
+		int lastThinkTick = 0;
+
+		BuildState state = BuildState.WaitForFeedback;
 
 		public void GameStarted(World w)
 		{
-			enabled = Game.IsHost; 
 			p = Game.world.LocalPlayer;
+			enabled = Game.IsHost && p != null; 
+			if (enabled)
+				pq = p.PlayerActor.traits.Get<ProductionQueue>();
 		}
 
+		string ChooseItemToBuild()
+		{
+			return "powr";		// LOTS OF POWER
+		}
+
+		int2? ChooseBuildLocation(ProductionItem item)
+		{
+			return null;		// i don't know where to put it.
+		}
+
+		const int feedbackTime = 30;		// ticks; = a bit over 1s. must be >= netlag.
+
 		public void Tick(Actor self)
 		{
 			if (!enabled)
@@ -37,6 +65,53 @@ namespace OpenRA.Mods.RA
 				else
 					Game.Debug("AI: Can't find the MCV.");
 			}
+
+			var currentBuilding = pq.CurrentItem("Building");
+			switch (state)
+			{
+				case BuildState.ChooseItem:
+					{
+						var item = ChooseItemToBuild();
+						if (item == null)
+						{
+							state = BuildState.WaitForFeedback;
+							lastThinkTick = ticks;
+						}
+						else
+						{
+							state = BuildState.WaitForProduction;
+							Game.IssueOrder(Order.StartProduction(p, item, 1));
+						}
+					}
+					break;
+
+				case BuildState.WaitForProduction:
+					if (currentBuilding == null) return;	/* let it happen.. */
+
+					else if (currentBuilding.Paused)
+						Game.IssueOrder(Order.PauseProduction(p, currentBuilding.Item, false));
+					else if (currentBuilding.Done)
+					{
+						state = BuildState.WaitForFeedback;
+						lastThinkTick = ticks;
+
+						/* place the building */
+						var location = ChooseBuildLocation(currentBuilding);
+						if (location == null)
+							Game.IssueOrder(Order.CancelProduction(p, currentBuilding.Item));
+						else
+						{
+							// todo: place the building!
+							throw new NotImplementedException();
+						}
+					}
+					break;
+
+				case BuildState.WaitForFeedback:
+					if (ticks - lastThinkTick > feedbackTime)
+						state = BuildState.ChooseItem;
+					break;
+			}
 		}
 	}
 }