categorize traits better

OpenRa.Game/Traits/SupportPowers/SupportPower.cs

@@ -0,0 +1,132 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Traits
+{
+	public abstract class SupportPowerInfo : ITraitInfo
+	{
+		public readonly bool RequiresPower = true;
+		public readonly bool OneShot = false;
+		public readonly float ChargeTime = 0;
+		public readonly string Image = null;
+		public readonly string Description = "";
+		public readonly string LongDesc = "";
+		public readonly string[] Prerequisites = { };
+		public readonly int TechLevel = -1;
+		public readonly bool GivenAuto = true;
+
+		public abstract object Create(Actor self);
+	}
+
+	public class SupportPower : ITick
+	{
+		public readonly SupportPowerInfo Info;
+		public int RemainingTime { get; private set; }
+		public int TotalTime { get { return (int)(Info.ChargeTime * 60 * 25); } }
+		public bool IsUsed;
+		public bool IsAvailable;
+		public bool IsReady { get { return RemainingTime == 0; } }
+		public readonly Player Owner;
+
+		bool notifiedCharging;
+		bool notifiedReady;
+
+		public SupportPower(Actor self, SupportPowerInfo info)
+		{
+			Info = info;
+			RemainingTime = TotalTime;
+			Owner = self.Owner;
+		}
+
+		public void Tick(Actor self)
+		{
+			if (Info.OneShot && IsUsed)
+				return;
+
+			var buildings = Rules.TechTree.GatherBuildings(self.Owner);
+			var effectivePrereq = Info.Prerequisites
+				.Select(a => a.ToLowerInvariant())
+				.Where(a => Rules.Info[a].Traits.Get<BuildableInfo>().Owner.Contains(self.Owner.Race));
+			
+			if (Info.GivenAuto)
+			{
+				IsAvailable = Info.TechLevel > -1
+					&& effectivePrereq.Any()
+					&& effectivePrereq.All(a => buildings[a].Count > 0);
+			}
+			
+			if (IsAvailable && (!Info.RequiresPower || IsPowered()))
+			{
+				if (RemainingTime > 0) --RemainingTime;
+				if (!notifiedCharging)
+				{
+					OnBeginCharging();
+					notifiedCharging = true;
+				}
+			}
+
+			if (RemainingTime == 0
+				&& !notifiedReady)
+			{
+				OnFinishCharging();
+				notifiedReady = true;
+			}
+		}
+
+		bool IsPowered()
+		{
+			var buildings = Rules.TechTree.GatherBuildings(Owner);
+			var effectivePrereq = Info.Prerequisites
+				.Select(a => a.ToLowerInvariant())
+				.Where(a => Rules.Info[a].Traits.Get<BuildableInfo>().Owner.Contains(Owner.Race));
+
+			if (Info.Prerequisites.Count() == 0) 
+				return Owner.GetPowerState() == PowerState.Normal;
+			
+			return effectivePrereq.Any() && 
+				effectivePrereq.All(a => buildings[a].Any(b => !b.traits.Get<Building>().Disabled));
+		}
+
+		public void FinishActivate()
+		{
+			if (Info.OneShot)
+			{
+				IsUsed = true;
+				IsAvailable = false;
+			}
+			RemainingTime = TotalTime;
+			notifiedReady = false;
+			notifiedCharging = false;
+		}
+
+		public void Give(float charge)
+		{
+			IsAvailable = true;
+			IsUsed = false;
+			RemainingTime = (int)(charge * TotalTime);
+		}
+
+		protected virtual void OnBeginCharging() { }
+		protected virtual void OnFinishCharging() { }
+		protected virtual void OnActivate() { }
+
+		public void Activate()
+		{
+			if (!IsAvailable || !IsReady)
+			{
+				Sound.Play("briefing.aud");
+				return;
+			}
+
+			if (Info.RequiresPower && !IsPowered())
+			{
+				Sound.Play("nopowr1.aud");
+				return;
+			}
+
+			OnActivate();
+		}
+	}
+}