Fix texture pack/terrain.png not changing anymore when loaded from texcache, also 'always yes/no' should not be shown in the 'sure you want to visit url' dialog.

ClassicalSharp/2D/Screens/ChatScreen.cs

@@ -395,7 +395,7 @@ namespace ClassicalSharp.Gui {
 			
 			if( Utils.IsUrlPrefix( url, 0 ) ) {
 				game.ShowWarning( new WarningScreen(
-					game, url, false, "Are you sure you want to go to this url?",
+					game, url, false, false, "Are you sure you want to go to this url?",
 					OpenUrl, AppendUrl, null, url,
 					"Be careful - urls from strangers may link to websites that",
 					" may have viruses, or things you may not want to open/see."

ClassicalSharp/2D/Screens/WarningScreen.cs

@@ -7,7 +7,7 @@ namespace ClassicalSharp.Gui {
 	
 	public sealed class WarningScreen : MenuScreen {
 		
-		public WarningScreen( Game game, object metadata, bool confirmNo, string title,
+		public WarningScreen( Game game, object metadata, bool showAlways, bool confirmNo, string title,
 		                     Action<WarningScreen> yesClick, Action<WarningScreen> noClick,
 		                     Action<WarningScreen> renderFrame, params string[] body ) : base( game ) {
 			this.Metadata = metadata;
@@ -17,13 +17,14 @@ namespace ClassicalSharp.Gui {
 			this.title = title;
 			this.body = body;
 			this.confirmNo = confirmNo;
+			this.showAlways = showAlways;
 		}
 		
 		internal Screen lastScreen;
 		internal bool wasCursorVisible;
 		string title, lastTitle;
 		string[] body, lastBody;
-		bool confirmNo, confirmMode;
+		bool confirmNo, confirmMode, showAlways;
 		
 		public override void Init() {
 			titleFont = new Font( game.FontName, 16, FontStyle.Bold );
@@ -100,16 +101,17 @@ namespace ClassicalSharp.Gui {
 		}
 		
 		void InitStandardButtons() {
-			widgets = new ButtonWidget[] {
+			widgets = new ButtonWidget[showAlways ? 4 : 2];
-				ButtonWidget.Create( game, -110, 30, 160, 35, "Yes", Anchor.Centre,
+			widgets[0] = ButtonWidget.Create( game, -110, 30, 160, 35, "Yes", Anchor.Centre,
-				                    Anchor.Centre, titleFont, OnYesClick ),
+			                                 Anchor.Centre, titleFont, OnYesClick );
-				ButtonWidget.Create( game, 110, 30, 160, 35, "No", Anchor.Centre,
+			widgets[1] = ButtonWidget.Create( game, 110, 30, 160, 35, "No", Anchor.Centre,
-				                    Anchor.Centre, titleFont, OnNoClick ),
+			                                 Anchor.Centre, titleFont, OnNoClick );
-				ButtonWidget.Create( game, -110, 80, 160, 35, "Always yes", Anchor.Centre,
+			if( !showAlways ) return;
-				                    Anchor.Centre, titleFont, OnYesAlwaysClick ),
+			
-				ButtonWidget.Create( game, 110, 80, 160, 35, "Always no", Anchor.Centre,
+			widgets[2] = ButtonWidget.Create( game, -110, 80, 160, 35, "Always yes", Anchor.Centre,
-				                    Anchor.Centre, titleFont, OnNoAlwaysClick ),
+			                                 Anchor.Centre, titleFont, OnYesAlwaysClick );
-			};
+			widgets[3] = ButtonWidget.Create( game, 110, 80, 160, 35, "Always no", Anchor.Centre,
+			                                 Anchor.Centre, titleFont, OnNoAlwaysClick );
 		}
 		
 		Action<WarningScreen> yesClick, noClick, renderFrame;

ClassicalSharp/Entities/Entity.Bounds.cs

@@ -54,19 +54,6 @@ namespace ClassicalSharp.Entities {
 			return false;
 		}
 		
-		/// <summary> Constant offset used to avoid floating point roundoff errors. </summary>
-		public const float Adjustment = 0.001f;
-		static readonly Vector3 liqExpand = new Vector3( 0.25f/16f, 0/16f, 0.25f/16f );
-		
-		/// <summary> Determines whether any of the blocks that intersect the
-		/// bounding box of this entity are lava or still lava. </summary>
-		public bool TouchesAnyLava() {
-			BoundingBox bounds = CollisionBounds.Expand( liqExpand );
-			AdjustLiquidTestBounds( ref bounds );
-			return TouchesAny( bounds,
-			                  b => b == (byte)Block.Lava || b == (byte)Block.StillLava );
-		}
-		
 		/// <summary> Determines whether any of the blocks that intersect the
 		/// bounding box of this entity are rope. </summary>
 		public bool TouchesAnyRope() {
@@ -75,24 +62,56 @@ namespace ClassicalSharp.Entities {
 			return TouchesAny( bounds, b => b == (byte)Block.Rope );
 		}
 		
+		/// <summary> Constant offset used to avoid floating point roundoff errors. </summary>
+		public const float Adjustment = 0.001f;
+		
+		
+		static readonly Vector3 liqExpand = new Vector3( 0.25f/16f, 0/16f, 0.25f/16f );
+		
+		// If liquid block above, leave height same
+		// otherwise reduce water BB height by 0.5 blocks
+		bool TouchesAnyLiquid( BoundingBox bounds, byte block1, byte block2 ) {
+			Vector3I bbMin = Vector3I.Floor( bounds.Min );
+			Vector3I bbMax = Vector3I.Floor( bounds.Max );
+			int height = game.World.Height;
+			
+			// Order loops so that we minimise cache misses
+			for( int y = bbMin.Y; y <= bbMax.Y; y++ )
+				for( int z = bbMin.Z; z <= bbMax.Z; z++ )
+					for( int x = bbMin.X; x <= bbMax.X; x++ )
+			{
+				if( !game.World.IsValidPos( x, y, z ) ) continue;
+				byte block = game.World.GetBlock( x, y, z );
+				byte below = (y - 1) < 0 ? (byte)0 : game.World.GetBlock( x, y - 1, z );
+				byte above = (y + 1) >= height ? (byte)0 : game.World.GetBlock( x, y + 1, z );
+				
+				// TODO: use recording to find right constants when I have more time
+				Vector3 min = new Vector3( x, y, z ) + info.MinBB[block];
+				Vector3 max = new Vector3( x, y, z ) + info.MaxBB[block];
+				//if( game.BlockInfo.Collide[below] != CollideType.SwimThrough )
+				//	min.Y += 4/16f;
+				//if( game.BlockInfo.Collide[above] != CollideType.SwimThrough )
+				//	max.Y -= 4/16f;
+				
+				BoundingBox blockBB = new BoundingBox( min, max );
+				if( !blockBB.Intersects( bounds ) ) continue;		
+				if( block == block1 || block == block2 ) return true;
+			}
+			return false;
+		}
+		
+		/// <summary> Determines whether any of the blocks that intersect the
+		/// bounding box of this entity are lava or still lava. </summary>
+		public bool TouchesAnyLava() {
+			BoundingBox bounds = CollisionBounds.Expand( liqExpand );
+			return TouchesAnyLiquid( bounds, (byte)Block.Lava, (byte)Block.StillLava );
+		}
+
 		/// <summary> Determines whether any of the blocks that intersect the
 		/// bounding box of this entity are water or still water. </summary>
 		public bool TouchesAnyWater() {
-			// TODO: proper way to check seems to be:
-			// If liquid block above, leave height same
-			// otherwise reduce water BB height by 0.5 blocks
 			BoundingBox bounds = CollisionBounds.Expand( liqExpand );
-			AdjustLiquidTestBounds( ref bounds );
+			return TouchesAnyLiquid( bounds, (byte)Block.Water, (byte)Block.StillWater );
-			return TouchesAny( bounds,
-			                  b => b == (byte)Block.Water || b == (byte)Block.StillWater );
-		}
-		
-		void AdjustLiquidTestBounds( ref BoundingBox bounds ) {
-			// Even though we collide with lava 3 blocks above our feet, vanilla client thinks
-			// that we do not.. so we have to maintain compatibility here.
-			float height = bounds.Max.Y - bounds.Min.Y;
-			const float pHeight = (28.5f - 4f)/16f;
-			bounds.Max.Y = bounds.Min.Y + Math.Min( height, pHeight );
 		}
 	}
 }

ClassicalSharp/Network/INetworkProcessor.cs

@@ -76,7 +76,7 @@ namespace ClassicalSharp {
 			if( !game.AcceptedUrls.HasUrl( url ) && !game.DeniedUrls.HasUrl( url ) ) {
 				game.AsyncDownloader.RetrieveContentLength( url, true, "CL_" + url );
 				game.ShowWarning( new WarningScreen(
-					game, "CL_" + url, true, "Do you want to download the server's texture pack?",
+					game, "CL_" + url, true, true, "Do you want to download the server's texture pack?",
 					DownloadTexturePack, null, WarningScreenTick,
 					"Texture pack url:", url,
 					"Download size: Determining..." ) );
@@ -127,12 +127,12 @@ namespace ClassicalSharp {
 					game.World.TextureUrl = item.Url;
 				} else if( Is304Status( item.WebEx ) ) {
 					Bitmap bmp = TextureCache.GetBitmapFromCache( item.Url );
-					if( bmp != null ) game.World.TextureUrl = item.Url;
-					
 					if( bmp == null ) // Should never happen, but handle anyways.
 						ExtractDefault();
 					else if( item.Url != game.World.TextureUrl )
 						game.ChangeTerrainAtlas( bmp );
+					
+					if( bmp != null ) game.World.TextureUrl = item.Url;
 				} else {
 					ExtractDefault();
 				}
@@ -146,14 +146,14 @@ namespace ClassicalSharp {
 					game.World.TextureUrl = item.Url;
 				} else if( Is304Status( item.WebEx ) ) {
 					byte[] data = TextureCache.GetDataFromCache( item.Url );
-					if( data != null ) game.World.TextureUrl = item.Url;
-					
 					if( data == null ) { // Should never happen, but handle anyways.
 						ExtractDefault();
 					} else if( item.Url != game.World.TextureUrl ) {
 						TexturePackExtractor extractor = new TexturePackExtractor();
 						extractor.Extract( data, game );
 					}
+					
+					if( data != null ) game.World.TextureUrl = item.Url;
 				} else {
 					ExtractDefault();
 				}