Merge branches 'bugfixes', 'shroud', 'cargo' and 'minimap'

OpenRa.Game/Actor.cs

@@ -123,6 +123,7 @@ namespace OpenRa.Game
 		}
 
 		public bool IsDead { get { return Health <= 0; } }
+		public bool IsInWorld { get; set; }
 
 		public DamageState GetDamageState()
 		{

OpenRa.Game/Chrome.cs

@@ -132,6 +132,8 @@ namespace OpenRa.Game
 
 			PerfHistory.Render(renderer, Game.worldRenderer.lineRenderer);
 
+			Game.minimap.Draw(new float2(Game.viewport.Width - 256, 8));
+
 			chromeRenderer.DrawSprite(specialBinSprite, float2.Zero, PaletteType.Chrome);
 			chromeRenderer.DrawSprite(moneyBinSprite, new float2(Game.viewport.Width - 320, 0), PaletteType.Chrome);
 
@@ -143,8 +145,6 @@ namespace OpenRa.Game
 			int paletteHeight = DrawBuildPalette(currentTab);
 			DrawBuildTabs(paletteHeight);
 			DrawChat();
-
-			Game.minimap.Draw(new float2(Game.viewport.Width - 128,30));
 		}
 
 		void AddButton(Rectangle r, Action<bool> b) { buttons.Add(Pair.New(r, b)); }

OpenRa.Game/Game.cs

@@ -59,6 +59,11 @@ namespace OpenRa.Game
 			palette = new HardwarePalette(renderer, Rules.Map);
 
 			world = new World();
+			Game.world.ActorAdded += a => 
+			{ 
+				if (a.Owner != null && a.Info != null) 
+					a.Owner.Shroud.Explore(a); 
+			};
 
 			for (int i = 0; i < 8; i++)
 			{
@@ -100,7 +105,7 @@ namespace OpenRa.Game
 
 			chrome = new Chrome(renderer);
 
-			oreFrequency = (int)(Rules.General.GrowthRate * 60 * 1000);
+			oreFrequency = (int)(Rules.General.GrowthRate * 60 * 25);
 			oreTicks = oreFrequency;
 		}
 
@@ -182,11 +187,12 @@ namespace OpenRa.Game
 							controller.orderGenerator.Tick();
 
 						if (--oreTicks == 0)
-						{
 							using (new PerfSample("ore"))
+							{
 								Rules.Map.GrowOre(SharedRandom);
-							oreTicks = oreFrequency;
-						}
+								minimap.InvalidateOre();
+								oreTicks = oreFrequency;
+							}
 
 						world.Tick();
 						UnitInfluence.Tick();

OpenRa.Game/GameRules/UnitInfo.cs

@@ -55,13 +55,15 @@ namespace OpenRa.Game.GameRules
 		public readonly int OrePips = 0;
 		public readonly string Icon = null;
 		public readonly int[] SelectionSize = null;
+		public readonly int Passengers = 0;
+		public readonly int UnloadFacing = 0;
+		public readonly UnitMovementType[] PassengerTypes = null;
 
 		public UnitInfo(string name) { Name = name; }
 	}
 
 	public class MobileInfo : UnitInfo
 	{
-		public readonly int Passengers = 0;
 		public readonly int Speed = 0;
 		public readonly bool NoMovingFire = false;
 		public readonly string Voice = "GenericVoice";

OpenRa.Game/Graphics/HardwarePalette.cs

@@ -3,7 +3,12 @@ using OpenRa.FileFormats;
 
 namespace OpenRa.Game.Graphics
 {
-	public enum PaletteType { Gold, Blue, Red, Orange, Teal, Salmon, Green, Gray, Shadow, Invuln, Chrome };
+	public enum PaletteType
+	{
+		Gold, Blue, Red, Orange, Teal, Salmon, Green, Gray, 
+		Shadow, Invuln, Chrome, Shroud,
+	};
+
 	class HardwarePalette : Sheet
 	{
 		const int maxEntries = 16;
@@ -21,6 +26,7 @@ namespace OpenRa.Game.Graphics
 			AddPalette(new Palette(pal, new PaletteRemap(Color.FromArgb(140, 0, 0, 0))));
 			AddPalette(pal);	// iron curtain. todo: remap!
 			AddPalette(pal);	// chrome (it's like gold, but we're not going to hax it in palettemods)
+			AddPalette(new Palette(pal, new ShroudPaletteRemap()));
 		}
 
 		int AddPalette(Palette p)

OpenRa.Game/Graphics/Minimap.cs

@@ -1,6 +1,7 @@
 using System.Drawing;
 using System.Linq;
 using OpenRa.Game.Traits;
+using OpenRa.FileFormats;
 
 namespace OpenRa.Game.Graphics
 {
@@ -9,7 +10,7 @@ namespace OpenRa.Game.Graphics
 		Sheet sheet;
 		SpriteRenderer spriteRenderer;
 		Sprite sprite;
-		Bitmap terrain;
+		Bitmap terrain, oreLayer;
 
 		public void Tick() { }
 
@@ -21,20 +22,29 @@ namespace OpenRa.Game.Graphics
 		}
 
 		// todo: extract these from the palette
-		static readonly Color[] terrainTypeColors = { 
-														Color.Green,
-														Color.Red,
-														Color.Blue,
-														Color.Yellow,
-														Color.Purple,
-														Color.Turquoise,
-														Color.Violet,
-														Color.Tomato,
-														Color.Teal,
-													};
+		Color[] terrainTypeColors;
+
+		public void InvalidateOre() { oreLayer = null; }
 
 		public void Update()
 		{
+			if (terrainTypeColors == null)
+			{
+				var pal = new Palette(FileSystem.Open(Rules.Map.Theater + ".pal"));
+				terrainTypeColors = new[] {
+					pal.GetColor(0x1a),
+					pal.GetColor(0x63),
+					pal.GetColor(0x2f),
+					pal.GetColor(0x1f),
+					pal.GetColor(0x14),
+					pal.GetColor(0x64),
+					pal.GetColor(0x1f),
+					pal.GetColor(0x68),
+					pal.GetColor(0x6b),
+					pal.GetColor(0x6d),
+				};
+			}
+			
 			if (terrain == null)
 			{
 				terrain = new Bitmap(128, 128);
@@ -45,14 +55,23 @@ namespace OpenRa.Game.Graphics
 							: Color.Black);
 			}
 
-			var bitmap = new Bitmap(terrain);
+			if (oreLayer == null)
+			{
+				oreLayer = new Bitmap(terrain);
+				for (var y = 0; y < 128; y++)
+					for (var x = 0; x < 128; x++)
+						if (Rules.Map.ContainsResource(new int2(x, y)))
+						oreLayer.SetPixel(x, y, terrainTypeColors[(int)TerrainMovementType.Ore]);
+			}
+
+			var bitmap = new Bitmap(oreLayer);
 			
 			for( var y = 0; y < 128; y++ )
 				for (var x = 0; x < 128; x++)
 				{
 					var b = Game.BuildingInfluence.GetBuildingAt(new int2(x, y));
 					if (b != null)
-						bitmap.SetPixel(x, y, b.Owner != null ? Chat.paletteColors[(int)b.Owner.Palette] : Color.Gray);
+						bitmap.SetPixel(x, y, b.Owner != null ? Chat.paletteColors[(int)b.Owner.Palette] : terrainTypeColors[4]);
 				}
 
 			foreach (var a in Game.world.Actors.Where(a => a.traits.Contains<Unit>()))
@@ -63,7 +82,7 @@ namespace OpenRa.Game.Graphics
 
 		public void Draw(float2 pos)
 		{
-			spriteRenderer.DrawSprite(sprite, pos, PaletteType.Chrome);
+			spriteRenderer.DrawSprite(sprite, pos, PaletteType.Chrome, new float2(256,256));
 			spriteRenderer.Flush();
 		}
 	}

OpenRa.Game/Graphics/SpriteRenderer.cs

@@ -55,12 +55,17 @@ namespace OpenRa.Game.Graphics
 		}
 
 		public void DrawSprite(Sprite s, float2 location, PaletteType palette)
+		{
+			DrawSprite(s, location, palette, s.size);
+		}
+
+		public void DrawSprite(Sprite s, float2 location, PaletteType palette, float2 size)
 		{
 			if (s.sheet != currentSheet)
 				Flush();
 
 			currentSheet = s.sheet;
-			Util.FastCreateQuad(vertices, indices, location.ToInt2(), s, (int) palette, nv, ni);
+			Util.FastCreateQuad(vertices, indices, location.ToInt2(), s, (int)palette, nv, ni, size);
 			nv += 4; ni += 6;
 			if (++sprites >= spritesPerBatch)
 				Flush();

OpenRa.Game/Graphics/TerrainRenderer.cs

@@ -34,7 +34,7 @@ namespace OpenRa.Game.Graphics
 				for( int i = map.XOffset ; i < map.XOffset + map.Width; i++ )
 				{
 					Sprite tile = tileMapping[map.MapTiles[i, j]];
-					Util.FastCreateQuad(vertices, indices, Game.CellSize * new float2(i, j), tile, 0, nv, ni);
+					Util.FastCreateQuad(vertices, indices, Game.CellSize * new float2(i, j), tile, 0, nv, ni, tile.size);
 					nv += 4;
 					ni += 6;
 				}

OpenRa.Game/Graphics/Util.cs

@@ -57,14 +57,14 @@ namespace OpenRa.Game.Graphics
 
 		static float[] channelSelect = { 0.75f, 0.25f, -0.25f, -0.75f };
 
-		public static void FastCreateQuad(Vertex[] vertices, ushort[] indices, float2 o, Sprite r, int palette, int nv, int ni)
+		public static void FastCreateQuad(Vertex[] vertices, ushort[] indices, float2 o, Sprite r, int palette, int nv, int ni, float2 size)
 		{
 			float2 attrib = new float2(palette / 16.0f, channelSelect[(int)r.channel]);
 
-			vertices[nv] = new Vertex(KLerp(o, r.size, 0), r.FastMapTextureCoords(0), attrib);
-			vertices[nv + 1] = new Vertex(KLerp(o, r.size, 1), r.FastMapTextureCoords(1), attrib);
-			vertices[nv + 2] = new Vertex(KLerp(o, r.size, 2), r.FastMapTextureCoords(2), attrib);
-			vertices[nv + 3] = new Vertex(KLerp(o, r.size, 3), r.FastMapTextureCoords(3), attrib);
+			vertices[nv] = new Vertex(KLerp(o, size, 0), r.FastMapTextureCoords(0), attrib);
+			vertices[nv + 1] = new Vertex(KLerp(o, size, 1), r.FastMapTextureCoords(1), attrib);
+			vertices[nv + 2] = new Vertex(KLerp(o, size, 2), r.FastMapTextureCoords(2), attrib);
+			vertices[nv + 3] = new Vertex(KLerp(o, size, 3), r.FastMapTextureCoords(3), attrib);
 
 			indices[ni] = (ushort)(nv);
 			indices[ni + 1] = indices[ni + 3] = (ushort)(nv + 1);

OpenRa.Game/Graphics/WorldRenderer.cs

@@ -87,6 +87,8 @@ namespace OpenRa.Game.Graphics
 			if (Game.controller.orderGenerator != null)
 				Game.controller.orderGenerator.Render();
 
+			Game.LocalPlayer.Shroud.Draw(spriteRenderer);
+
 			lineRenderer.Flush();
 			spriteRenderer.Flush();
 		}
@@ -211,7 +213,7 @@ namespace OpenRa.Game.Graphics
 
 			foreach (var pips in selectedUnit.traits.WithInterface<IPips>())
 			{
-				foreach (var pip in pips.GetPips())
+				foreach (var pip in pips.GetPips(selectedUnit))
 				{
 					var pipImages = new Animation("pips");
 					pipImages.PlayRepeating(pipStrings[(int)pip]);

OpenRa.Game/OpenRa.Game.csproj

@@ -110,6 +110,7 @@
     <Compile Include="PathSearch.cs" />
     <Compile Include="ProductionItem.cs" />
     <Compile Include="Orders\ReplayOrderSource.cs" />
+    <Compile Include="Shroud.cs" />
     <Compile Include="Smudge.cs" />
     <Compile Include="Sound.cs" />
     <Compile Include="Support\Stopwatch.cs" />
@@ -118,6 +119,7 @@
     <Compile Include="Traits\Activities\Attack.cs" />
     <Compile Include="Traits\Activities\CaptureBuilding.cs" />
     <Compile Include="Traits\Activities\Demolish.cs" />
+    <Compile Include="Traits\Activities\EnterTransport.cs" />
     <Compile Include="Traits\Activities\Fly.cs" />
     <Compile Include="Traits\Activities\FlyAttack.cs" />
     <Compile Include="Traits\Activities\FlyTimed.cs" />
@@ -185,6 +187,7 @@
     <Compile Include="Traits\Activities\Follow.cs" />
     <Compile Include="Traits\Activities\Turn.cs" />
     <Compile Include="Traits\Activities\UndeployMcv.cs" />
+    <Compile Include="Traits\Activities\UnloadCargo.cs" />
     <Compile Include="Traits\APMine.cs" />
     <Compile Include="Traits\ATMine.cs" />
     <Compile Include="Traits\AttackBase.cs" />
@@ -198,6 +201,7 @@
     <Compile Include="Traits\BelowUnits.cs" />
     <Compile Include="Traits\Building.cs" />
     <Compile Include="Traits\C4Demolition.cs" />
+    <Compile Include="Traits\Cargo.cs" />
     <Compile Include="Traits\Chronoshiftable.cs" />
     <Compile Include="Traits\ChronoshiftPaletteEffect.cs" />
     <Compile Include="Traits\Chronosphere.cs" />
@@ -213,6 +217,7 @@
     <Compile Include="Traits\MineImmune.cs" />
     <Compile Include="Traits\Minelayer.cs" />
     <Compile Include="Traits\LimitedAmmo.cs" />
+    <Compile Include="Traits\Passenger.cs" />
     <Compile Include="Traits\Repairable.cs" />
     <Compile Include="Traits\Reservable.cs" />
     <Compile Include="Traits\SquishByTank.cs" />

OpenRa.Game/Orders/UnitOrderGenerator.cs

@@ -27,7 +27,7 @@ namespace OpenRa.Game.Orders
 
 		public void Tick()
 		{
-			selection.RemoveAll(a => a.IsDead);
+			selection.RemoveAll(a => !a.IsInWorld);
 		}
 
 		public void Render()
@@ -81,6 +81,7 @@ namespace OpenRa.Game.Orders
 					else
 						return Cursor.MoveBlocked;
 				case "Enter": return Cursor.Enter;
+				case "EnterTransport": return Cursor.Enter;
 				case "Deliver": return Cursor.Enter;
 				case "Infiltrate": return Cursor.Enter;
 				case "Capture": return Cursor.Capture;

OpenRa.Game/Player.cs

@@ -17,15 +17,17 @@ namespace OpenRa.Game
 		public string InternalName;
 		public Race Race;
 		public readonly int Index;
-		public int Cash;
-		public int Ore;
+		public int Cash = 10000;
+		public int Ore = 0;
 		public int OreCapacity;
-		public int DisplayCash;
-		public int PowerProvided;
-		public int PowerDrained;
+		public int DisplayCash = 0;
+		public int PowerProvided = 0;
+		public int PowerDrained = 0;
 
 		public bool IsReady;
 
+		public Shroud Shroud = new Shroud();
+
 		public Player( Actor playerActor, int index, PaletteType palette, string playerName, Race race, string internalName )
 		{
 			this.PlayerActor = playerActor;
@@ -34,10 +36,6 @@ namespace OpenRa.Game
 			this.InternalName = internalName;
 			this.PlayerName = playerName;
 			this.Race = race;
-			this.Cash = 10000;
-			this.Ore = 0;
-			this.DisplayCash = 0;
-			this.PowerProvided = this.PowerDrained = 0;
 		}
 
 		void UpdatePower()

OpenRa.Game/Shroud.cs

@@ -0,0 +1,87 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using IjwFramework.Types;
+using OpenRa.Game.Graphics;
+
+namespace OpenRa.Game
+{
+	class Shroud
+	{
+		bool[,] explored = new bool[128, 128];
+		Sprite[] shadowBits = SpriteSheetBuilder.LoadAllSprites("shadow");
+		Sprite[,] sprites = new Sprite[128, 128];
+		bool dirty;
+
+		public void Explore(Actor a)
+		{
+			foreach (var t in Game.FindTilesInCircle((1f/Game.CellSize * a.CenterLocation).ToInt2(), a.Info.Sight))
+				explored[t.X, t.Y] = true;
+
+			dirty = true;
+		}
+
+		Sprite ChooseShroud(int i, int j)
+		{
+			// bits are for exploredness: left, right, up, down, self
+			var n = new[] {
+				0xf,0xf,0xf,0xf,	
+				0xf,0x0f,0x0f,0xf,
+				0xf,0x0f,0x0f,0xf,	
+				0xf,0xf,0xf,0xf,
+				0,7,13,0,	
+				14,6,12,4,
+				11,3,9,1,	
+				0,2,8,0,
+			};
+			
+			var v = 0;
+			if (explored[i-1,j]) v |= 1;
+			if (explored[i+1,j]) v |= 2;
+			if (explored[i,j-1]) v |= 4;
+			if (explored[i,j+1]) v |= 8;
+			if (explored[i, j]) v |= 16;
+
+			var x = n[v];
+
+			if (x == 0)
+			{
+				// bits are for exploredness: TL, TR, BR, BL
+				var m = new[] { 
+					46, 41, 42, 38,
+					43, 45, 39, 35,
+					40, 37, 44, 34,
+					36, 33, 32, 47,
+				};
+
+				var u = 0;
+				if (explored[i - 1, j - 1]) u |= 1;
+				if (explored[i + 1, j - 1]) u |= 2;
+				if (explored[i + 1, j + 1]) u |= 4;
+				if (explored[i - 1, j + 1]) u |= 8;
+				return shadowBits[m[u]];
+			}
+
+			return shadowBits[x];
+		}
+
+		public void Draw(SpriteRenderer r)
+		{
+			if (dirty)
+			{
+				dirty = false;
+				for (int j = 1; j < 127; j++)
+					for (int i = 1; i < 127; i++)
+						sprites[i, j] = ChooseShroud(i, j);
+			}
+
+			for (var j = 0; j < 128; j++)
+				for (var i = 0; i < 128; i++)
+					if (sprites[i,j] != null)
+						r.DrawSprite(sprites[i, j], 
+							Game.CellSize * new float2(i, j), 
+							PaletteType.Shroud);
+		}
+	}
+}

OpenRa.Game/TerrainCosts.cs

@@ -2,7 +2,7 @@ using OpenRa.Game.Graphics;
 
 namespace OpenRa.Game
 {
-	enum UnitMovementType : byte
+	public enum UnitMovementType : byte
 	{
 		Foot = 0,
 		Track = 1,

OpenRa.Game/Traits/Activities/EnterTransport.cs

@@ -0,0 +1,36 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits.Activities
+{
+	class EnterTransport : IActivity
+	{
+		public IActivity NextActivity { get; set; }
+		bool isCanceled;
+		public Actor transport;
+
+		public EnterTransport(Actor self, Actor transport)
+		{
+			this.transport = transport;
+		}
+
+		public IActivity Tick(Actor self)
+		{
+			if (isCanceled) return NextActivity;
+			if (transport == null || !transport.IsInWorld) return NextActivity;
+
+			var cargo = transport.traits.Get<Cargo>();
+			if (cargo.IsFull(transport)) 
+				return NextActivity;
+
+			cargo.Load(transport, self);
+			Game.world.AddFrameEndTask(w => w.Remove(self));
+
+			return this;
+		}
+
+		public void Cancel(Actor self) { isCanceled = true; NextActivity = null; }
+	}
+}

OpenRa.Game/Traits/Activities/Turn.cs

@@ -5,7 +5,7 @@ namespace OpenRa.Game.Traits.Activities
 	{
 		public IActivity NextActivity { get; set; }
 
-		public int desiredFacing;
+		int desiredFacing;
 
 		public Turn( int desiredFacing )
 		{

OpenRa.Game/Traits/Activities/UnloadCargo.cs

@@ -0,0 +1,69 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game.Traits.Activities
+{
+	class UnloadCargo : IActivity
+	{
+		public IActivity NextActivity { get; set; }
+		bool isCanceled;
+
+		int2? ChooseExitTile(Actor self)
+		{
+			// is anyone still hogging this tile?
+			if (Game.UnitInfluence.GetUnitsAt(self.Location).Count() > 1)
+				return null;
+
+			for (var i = -1; i < 2; i++)
+				for (var j = -1; j < 2; j++)
+					if ((i != 0 || j != 0) && 
+						Game.IsCellBuildable(self.Location + new int2(i, j), 
+							UnitMovementType.Foot))
+						return self.Location + new int2(i, j);
+
+			return null;
+		}
+
+		public IActivity Tick(Actor self)
+		{
+			if (isCanceled) return NextActivity;
+
+			// if we're a thing that can turn, turn to the
+			// right facing for the unload animation
+			var unit = self.traits.GetOrDefault<Unit>();
+			if (unit != null && unit.Facing != self.Info.UnloadFacing)
+				return new Turn(self.Info.UnloadFacing) { NextActivity = this };
+
+			// todo: handle the BS of open/close sequences, which are inconsistent,
+			//		for reasons that probably make good sense to the westwood guys.
+
+			var cargo = self.traits.Get<Cargo>();
+			if (cargo.IsEmpty(self))
+				return NextActivity;
+
+			var ru = self.traits.WithInterface<RenderUnit>().FirstOrDefault();
+			if (ru != null)
+				ru.PlayCustomAnimation(self, "unload", null);
+
+			var exitTile = ChooseExitTile(self);
+			if (exitTile == null) 
+				return this;
+
+			var actor = cargo.Unload(self);
+
+			Game.world.AddFrameEndTask(w =>
+			{
+				w.Add(actor);
+				actor.traits.Get<Mobile>().TeleportTo(actor, self.Location);
+				actor.CancelActivity();
+				actor.QueueActivity(new Move(exitTile.Value, 0));
+			});
+
+			return this;
+		}
+
+		public void Cancel(Actor self) { NextActivity = null; isCanceled = true; }
+	}
+}

OpenRa.Game/Traits/Cargo.cs

@@ -0,0 +1,85 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRa.Game.GameRules;
+using OpenRa.Game.Traits.Activities;
+
+namespace OpenRa.Game.Traits
+{
+	class Cargo : IPips, IOrder
+	{
+		List<Actor> cargo = new List<Actor>();
+
+		public Cargo(Actor self) {}
+
+		public Order IssueOrder(Actor self, int2 xy, MouseInput mi, Actor underCursor)
+		{
+			// todo: check if there is an unoccupied `land` tile adjacent
+			if (mi.Button == MouseButton.Right && underCursor == self && cargo.Count > 0)
+			{
+				var unit = underCursor.traits.GetOrDefault<Unit>();
+				if (unit != null && unit.Altitude > 0) return null;
+
+				return new Order("Deploy", self, null, int2.Zero, null);
+			}
+
+			return null;
+		}
+
+		public void ResolveOrder(Actor self, Order order)
+		{
+			if (order.OrderString == "Deploy")
+			{
+				// todo: eject the units
+				self.CancelActivity();
+				self.QueueActivity(new UnloadCargo());
+			}
+		}
+
+		public bool IsFull(Actor self)
+		{
+			return cargo.Count == self.Info.Passengers;
+		}
+
+		public bool IsEmpty(Actor self)
+		{
+			return cargo.Count == 0;
+		}
+
+		public Actor Unload(Actor self)
+		{
+			var a = cargo[0];
+			cargo.RemoveAt(0);
+			return a;
+		}
+
+		public IEnumerable<PipType> GetPips( Actor self )
+		{
+			for (var i = 0; i < self.Info.Passengers; i++)
+				if (i >= cargo.Count)
+					yield return PipType.Transparent;
+				else
+					yield return GetPipForPassenger(cargo[i]);
+		}
+
+		static PipType GetPipForPassenger(Actor a)
+		{
+			// probably not actually right yet; fix to match real-ra
+
+			if (a.traits.Contains<AutoHeal>())
+				return PipType.Yellow;
+			if (!a.traits.WithInterface<AttackBase>().Any())
+				return PipType.Yellow;	// noncombat [E6,SPY,THF]
+			if (a.traits.Contains<C4Demolition>())
+				return PipType.Red;		// E7
+
+			return PipType.Green;
+		}
+
+		public void Load(Actor self, Actor a)
+		{
+			cargo.Add(a);
+		}
+	}
+}

OpenRa.Game/Traits/ChronoshiftDeploy.cs

@@ -55,7 +55,7 @@ namespace OpenRa.Game.Traits
 		}
 		
 		// Display 5 pips indicating the current charge status
-		public IEnumerable<PipType> GetPips()
+		public IEnumerable<PipType> GetPips(Actor self)
 		{
 			const int numPips = 5;
 			for (int i = 0; i < numPips; i++)

OpenRa.Game/Traits/Harvester.cs

@@ -57,7 +57,7 @@ namespace OpenRa.Game.Traits
 			}
 		}
 
-		public IEnumerable<PipType> GetPips()
+		public IEnumerable<PipType> GetPips(Actor self)
 		{
 			const int numPips = 7;
 			for (int i = 0; i < numPips; i++)

OpenRa.Game/Traits/LimitedAmmo.cs

@@ -23,7 +23,7 @@ namespace OpenRa.Game.Traits
 
 		public void Attacking(Actor self) { --ammo; }
 
-		public IEnumerable<PipType> GetPips()
+		public IEnumerable<PipType> GetPips(Actor self)
 		{
 			return Graphics.Util.MakeArray(self.Info.Ammo, 
 				i => ammo > i ? PipType.Green : PipType.Transparent);

OpenRa.Game/Traits/Mobile.cs

@@ -18,7 +18,16 @@ namespace OpenRa.Game.Traits
 		public int2 toCell
 		{
 			get { return self.Location; }
-			set { Game.UnitInfluence.Remove(self, this); self.Location = value; Game.UnitInfluence.Add(self, this); }
+			set
+			{
+				if (self.Location != value)
+				{
+					Game.UnitInfluence.Remove(self, this);
+					self.Location = value;
+					self.Owner.Shroud.Explore(self);
+				}
+				Game.UnitInfluence.Add(self, this);
+			}
 		}
 
 		public Mobile(Actor self)

OpenRa.Game/Traits/Passenger.cs

@@ -0,0 +1,42 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using OpenRa.Game.Traits.Activities;
+
+namespace OpenRa.Game.Traits
+{
+	class Passenger : IOrder
+	{
+		public Passenger(Actor self) { }
+
+		public Order IssueOrder(Actor self, int2 xy, MouseInput mi, Actor underCursor)
+		{
+			if (mi.Button != MouseButton.Right) 
+				return null;
+
+			if (underCursor == null || underCursor.Owner != self.Owner)
+				return null;
+
+			var cargo = underCursor.traits.GetOrDefault<Cargo>();
+			if (cargo == null || cargo.IsFull(underCursor))
+				return null;
+
+			var umt = self.traits.WithInterface<IMovement>().First().GetMovementType();
+			if (!underCursor.Info.PassengerTypes.Contains(umt))
+				return null;
+
+			return new Order("EnterTransport", self, underCursor, int2.Zero, null);
+		}
+
+		public void ResolveOrder(Actor self, Order order)
+		{
+			if (order.OrderString == "EnterTransport")
+			{
+				self.CancelActivity();
+				self.QueueActivity(new Move(order.TargetActor.Location, 1));
+				self.QueueActivity(new EnterTransport(self, order.TargetActor));
+			}
+		}
+	}
+}

OpenRa.Game/Traits/StoresOre.cs

@@ -11,7 +11,7 @@ namespace OpenRa.Game.Traits
 			this.self = self;
 		}
 		
-		public IEnumerable<PipType> GetPips()
+		public IEnumerable<PipType> GetPips(Actor self)
 		{
 			for (int i = 0; i < self.Info.OrePips; i++)
 			{

OpenRa.Game/Traits/TraitsInterfaces.cs

@@ -29,7 +29,7 @@ namespace OpenRa.Game.Traits
 	interface IDamageModifier { float GetDamageModifier(); }
 	interface ISpeedModifier { float GetSpeedModifier(); }
 	interface IPaletteModifier { void AdjustPalette(Bitmap b); }
-	interface IPips { IEnumerable<PipType> GetPips(); }
+	interface IPips { IEnumerable<PipType> GetPips(Actor self); }
 	interface ITags { IEnumerable<TagType> GetTags(); }
 	interface IMovement
 	{

OpenRa.Game/World.cs

@@ -10,8 +10,19 @@ namespace OpenRa.Game
 		List<IEffect> effects = new List<IEffect>();
 		List<Action<World>> frameEndActions = new List<Action<World>>();
 
-		public void Add(Actor a) { actors.Add(a); ActorAdded(a); }
-		public void Remove(Actor a) { actors.Remove(a); ActorRemoved(a); }
+		public void Add(Actor a)
+		{
+			a.IsInWorld = true; 
+			actors.Add(a); 
+			ActorAdded(a);
+		}
+
+		public void Remove(Actor a)
+		{
+			a.IsInWorld = false; 
+			actors.Remove(a); 
+			ActorRemoved(a);
+		}
 
 		public void Add(IEffect b) { effects.Add(b); }
 		public void Remove(IEffect b) { effects.Remove(b); }