Implement clipping for third person camera, also fix sound selection method for blocks being wrong (Thanks 123DontMessWitMe)

ClassicalSharp/2D/Screens/Menu/HacksSettingsScreen.cs

@@ -27,6 +27,11 @@ namespace ClassicalSharp {
 				     (g, v) => { g.LocalPlayer.SpeedMultiplier = Single.Parse( v );
 				     	Options.Set( OptionsKey.Speed, v ); } ),
 				
+				Make( -140, 0, "Camera clipping", OnWidgetClick,
+				     g => g.CameraClipping ? "yes" : "no",
+				     (g, v) => { g.CameraClipping = v == "yes";
+				     	Options.Set( OptionsKey.CameraClipping, v == "yes" ); } ),
+				
 				// Column 2
 				Make( 140, -100, "Liquids breakable", OnWidgetClick,
 				     g => g.LiquidsBreakable ? "yes" : "no",
@@ -56,6 +61,7 @@ namespace ClassicalSharp {
 			validators = new MenuInputValidator[] {
 				new BooleanValidator(),
 				new RealValidator( 0.1f, 50 ),
+				new BooleanValidator(),
 				
 				new BooleanValidator(),
 				new BooleanValidator(),

ClassicalSharp/Entities/LocalPlayer.cs

@@ -142,16 +142,7 @@ namespace ClassicalSharp {
 			SoundType type = SoundType.None;
 			bool nonAir = false;
 			
-			// first check block standing on
-			byte blockUnder = (byte)BlockUnderFeet;
-			SoundType typeUnder = game.BlockInfo.StepSounds[blockUnder];
-			BlockCollideType collideType = game.BlockInfo.CollideType[blockUnder];
-			if( collideType == BlockCollideType.Solid && typeUnder != SoundType.None ) {
-				nonAir = true;
-				return typeUnder;
-			}
-			
-			// then check surrounding liquids/gas for sounds
+			// first check surrounding liquids/gas for sounds
 			TouchesAny( bounds, b => {
 			           	SoundType newType = game.BlockInfo.StepSounds[b];
 			           	BlockCollideType collide = game.BlockInfo.CollideType[b];
@@ -163,6 +154,15 @@ namespace ClassicalSharp {
 			if( type != SoundType.None )
 				return type;
 			
+			// then check block standing on
+			byte blockUnder = (byte)BlockUnderFeet;
+			SoundType typeUnder = game.BlockInfo.StepSounds[blockUnder];
+			BlockCollideType collideType = game.BlockInfo.CollideType[blockUnder];
+			if( collideType == BlockCollideType.Solid && typeUnder != SoundType.None ) {
+				nonAir = true;
+				return typeUnder;
+			}
+			
 			// then check all solid blocks at feet
 			pos.Y -= 0.01f;
 			bounds.Max.Y = bounds.Min.Y = pos.Y;

ClassicalSharp/Game/Game.Properties.cs

@@ -55,6 +55,9 @@ namespace ClassicalSharp {
 		/// <summary> Accumulator for the number of chunk updates performed. Reset every second. </summary>
 		public int ChunkUpdates;
 		
+		/// <summary> Whether the third person camera should have their camera position clipped so as to not intersect blocks. </summary>
+		public bool CameraClipping = true;
+		
 		public MapRenderer MapRenderer;
 		public MapBordersRenderer MapBordersRenderer;
 		public EnvRenderer EnvRenderer;
@@ -66,7 +69,7 @@ namespace ClassicalSharp {
 		public SelectionManager SelectionManager;
 		public ParticleManager ParticleManager;
 		public PickingRenderer Picking;
-		public PickedPos SelectedPos = new PickedPos();
+		public PickedPos SelectedPos = new PickedPos(), CameraClipPos = new PickedPos();
 		public ModelCache ModelCache;
 		internal string skinServer, chatInInputBuffer = null;
 		internal int defaultIb;
@@ -126,6 +129,8 @@ namespace ClassicalSharp {
 		public bool ViewBobbing, ShowBlockInHand;
 		public bool UseSound, UseMusic, LiquidsBreakable;
 		
+		public Vector3 CurrentCameraPos;
+		
 		public Animations Animations;
 		internal int CloudsTexId, RainTexId, SnowTexId, GuiTexId;
 		internal bool screenshotRequested;

ClassicalSharp/Game/Game.cs

@@ -44,6 +44,7 @@ namespace ClassicalSharp {
 			Options.Load();
 			AcceptedUrls.Load();
 			ViewDistance = Options.GetInt( OptionsKey.ViewDist, 16, 4096, 512 );
+			CameraClipping = Options.GetBool( OptionsKey.CameraClipping, true );
 			InputHandler = new InputHandler( this );
 			Chat = new ChatLog( this );
 			ParticleManager = new ParticleManager( this );
@@ -185,10 +186,12 @@ namespace ClassicalSharp {
 			Culling.CalcFrustumEquations( ref Projection, ref modelView );
 			
 			bool visible = activeScreen == null || !activeScreen.BlocksWorld;
-			if( visible ) {
+			if( visible ) {				
 				AxisLinesRenderer.Render( e.Time );
 				Players.RenderModels( Graphics, e.Time, t );
 				Players.RenderNames( Graphics, e.Time, t );
+				CurrentCameraPos = Camera.GetCameraPos( LocalPlayer.EyePosition );
+				                                       
 				ParticleManager.Render( e.Time, t );
 				Camera.GetPickedBlock( SelectedPos ); // TODO: only pick when necessary
 				EnvRenderer.Render( e.Time );
@@ -351,7 +354,7 @@ namespace ClassicalSharp {
 			PerspectiveCamera oldCam = (PerspectiveCamera)Camera;
 			if( Camera == firstPersonCam ) Camera = thirdPersonCam;
 			else if( Camera == thirdPersonCam ) Camera = forwardThirdPersonCam;
-			else if( Camera == forwardThirdPersonCam ) Camera = firstPersonZoomCam;
+			//else if( Camera == forwardThirdPersonCam ) Camera = firstPersonZoomCam;
 			else Camera = firstPersonCam;
 
 			if( !LocalPlayer.CanUseThirdPersonCamera ) 

ClassicalSharp/Physics/PickedPos.cs

@@ -12,6 +12,9 @@ namespace ClassicalSharp {
 		/// <summary> Maximum world coordinates of the block's bounding box. </summary>
 		public Vector3 Max;
 		
+		/// <summary> Exact world coordinates at which the ray intersected this block. </summary>
+		public Vector3 IntersectPoint;
+		
 		/// <summary> Integer world coordinates of the block. </summary>
 		public Vector3I BlockPos;
 		
@@ -36,6 +39,7 @@ namespace ClassicalSharp {
 			BlockPos = new Vector3I( x, y, z );
 			Valid = true;
 			BlockType = block;
+			IntersectPoint = intersect;
 			
 			Vector3I normal = Vector3I.Zero;
 			float dist = float.PositiveInfinity;

ClassicalSharp/Physics/Picking.cs

@@ -10,7 +10,7 @@ namespace ClassicalSharp {
 		/// <summary> Determines the picked block based on the given origin and direction vector.<br/>
 		/// Marks pickedPos as invalid if a block could not be found due to going outside map boundaries
 		/// or not being able to find a suitable candiate within the given reach distance. </summary>
-		public static void CalculatePickedBlock( Game window, Vector3 origin, Vector3 dir, float reach, PickedPos pickedPos ) {
+		public static void CalculatePickedBlock( Game game, Vector3 origin, Vector3 dir, float reach, PickedPos pickedPos ) {
 			// Implementation based on: "A Fast Voxel Traversal Algorithm for Ray Tracing"
 			// John Amanatides, Andrew Woo
 			// http://www.cse.yorku.ca/~amana/research/grid.pdf
@@ -21,10 +21,10 @@ namespace ClassicalSharp {
 			int x = start.X, y = start.Y, z = start.Z;
 			Vector3I step, cellBoundary;
 			Vector3 tMax, tDelta;
-			CalculateTimes( origin, dir, out step, out cellBoundary, out tMax, out tDelta );
+			CalcVectors( origin, dir, out step, out cellBoundary, out tMax, out tDelta );
 			
-			Map map = window.Map;
-			BlockInfo info = window.BlockInfo;
+			Map map = game.Map;
+			BlockInfo info = game.BlockInfo;
 			float reachSquared = reach * reach;
 			int iterations = 0;
 
@@ -44,7 +44,7 @@ namespace ClassicalSharp {
 					return;
 				}
 				
-				if( window.CanPick( block ) ) {
+				if( game.CanPick( block ) ) {
 					// This cell falls on the path of the ray. Now perform an additional bounding box test,
 					// since some blocks do not occupy a whole cell.
 					float t0, t1;
@@ -61,15 +61,20 @@ namespace ClassicalSharp {
 			                                    "Something has gone wrong. (dir: " + dir + ")" );
 		}
 		
-		public static void ClipCameraPos( Game window, Vector3 origin, Vector3 dir, float reach, PickedPos pickedPos ) {
+		public static void ClipCameraPos( Game game, Vector3 origin, Vector3 dir, float reach, PickedPos pickedPos ) {
+			if( !game.CameraClipping ) {
+				pickedPos.SetAsInvalid();
+				pickedPos.IntersectPoint = origin + dir * reach;
+				return;
+			}
 			Vector3I start = Vector3I.Floor( origin );
 			int x = start.X, y = start.Y, z = start.Z;
 			Vector3I step, cellBoundary;
 			Vector3 tMax, tDelta;
-			CalculateTimes( origin, dir, out step, out cellBoundary, out tMax, out tDelta );
+			CalcVectors( origin, dir, out step, out cellBoundary, out tMax, out tDelta );
 			
-			Map map = window.Map;
-			BlockInfo info = window.BlockInfo;
+			Map map = game.Map;
+			BlockInfo info = game.BlockInfo;
 			float reachSquared = reach * reach;
 			int iterations = 0;
 
@@ -84,25 +89,42 @@ namespace ClassicalSharp {
 				
 				if( dx * dx + dy * dy + dz * dz > reachSquared ) {
 					pickedPos.SetAsInvalid();
+					pickedPos.IntersectPoint = origin + dir * reach;
 					return;
 				}
 				
 				if( info.CollideType[block] == BlockCollideType.Solid && !info.IsAir[block] ) {
 					float t0, t1;
+					const float adjust = 0.1f;
 					if( Intersection.RayIntersectsBox( origin, dir, min, max, out t0, out t1 ) ) {
 						Vector3 intersect = origin + dir * t0;
 						pickedPos.SetAsValid( x, y, z, min, max, block, intersect );
+						
+						switch( pickedPos.BlockFace) {
+							case CpeBlockFace.XMin:
+								pickedPos.IntersectPoint.X -= adjust; break;
+							case CpeBlockFace.XMax:
+								pickedPos.IntersectPoint.X += adjust; break;
+							case CpeBlockFace.YMin:
+								pickedPos.IntersectPoint.Y -= adjust; break;
+							case CpeBlockFace.YMax:
+								pickedPos.IntersectPoint.Y += adjust; break;
+							case CpeBlockFace.ZMin:
+								pickedPos.IntersectPoint.Z -= adjust; break;
+							case CpeBlockFace.ZMax:
+								pickedPos.IntersectPoint.Z += adjust; break;	
+						}
 						return;
 					}
 				}
 				Step( ref tMax, ref tDelta, ref step, ref x, ref y, ref z );
 				iterations++;
 			}
-			throw new InvalidOperationException( "did over 10000 iterations in GetPickedBlockPos(). " +
+			throw new InvalidOperationException( "did over 10000 iterations in ClipCameraPos(). " +
 			                                    "Something has gone wrong. (dir: " + dir + ")" );
 		}
 		
-		static void CalculateTimes( Vector3 origin, Vector3 dir, out Vector3I step,
+		static void CalcVectors( Vector3 origin, Vector3 dir, out Vector3I step,
 		                           out Vector3I cellBoundary, out Vector3 tMax, out Vector3 tDelta ) {
 			Vector3I start = Vector3I.Floor( origin );
 			// Determine which way we go.

ClassicalSharp/Rendering/MapBordersRenderer.cs

@@ -57,9 +57,8 @@ namespace ClassicalSharp {
 			
 			// Do not draw water when we cannot see it.
 			// Fixes some 'depth bleeding through' issues with 16 bit depth buffers on large maps.
-			Vector3 eyePos = game.LocalPlayer.EyePosition;
 			float yVisible = Math.Min( 0, map.SidesHeight );
-			if( game.Map.EdgeBlock != Block.Air && game.Camera.GetCameraPos( eyePos ).Y >= yVisible ) {
+			if( game.Map.EdgeBlock != Block.Air && game.CurrentCameraPos.Y >= yVisible ) {
 				graphics.DrawIndexedVb_TrisT2fC4b( edgesVertices * 6 / 4, 0 );
 			}
 			graphics.AlphaBlending = false;

ClassicalSharp/Rendering/MapRenderer.cs

@@ -224,8 +224,7 @@ namespace ClassicalSharp {
 
 		int[] distances;
 		void UpdateSortOrder() {
-			Player p = game.LocalPlayer;
-			Vector3 cameraPos = game.Camera.GetCameraPos( p.EyePosition );
+			Vector3 cameraPos = game.CurrentCameraPos;
 			Vector3I newChunkPos = Vector3I.Floor( cameraPos );
 			newChunkPos.X = (newChunkPos.X & ~0x0F) + 8;
 			newChunkPos.Y = (newChunkPos.Y & ~0x0F) + 8;

ClassicalSharp/Rendering/PickingRenderer.cs

@@ -24,8 +24,7 @@ namespace ClassicalSharp.Renderers {
 		
 		public void Render( double delta, PickedPos pickedPos ) {
 			index = 0;
-			Player player = game.LocalPlayer;
-			Vector3 camPos = game.Camera.GetCameraPos( player.EyePosition );
+			Vector3 camPos = game.CurrentCameraPos;
 			float dist = (camPos - pickedPos.Min).LengthSquared;
 			
 			float size = dist < 12 * 12 ? 1/64f : 1/32f;

ClassicalSharp/Rendering/StandardEnvRenderer.cs

@@ -23,8 +23,7 @@ namespace ClassicalSharp.Renderers {
 		public override void Render( double deltaTime ) {
 			if( skyVb == -1 || cloudsVb == -1 ) return;
 			
-			Vector3 eyePos = game.LocalPlayer.EyePosition;
-			Vector3 pos = game.Camera.GetCameraPos( eyePos );
+			Vector3 pos = game.CurrentCameraPos;
 			float normalY = map.Height + 8;
 			float skyY = Math.Max( pos.Y + 8, normalY );
 			

ClassicalSharp/Rendering/WeatherRenderer.cs

@@ -32,8 +32,7 @@ namespace ClassicalSharp {
 			
 			graphics.Texturing = true;
 			graphics.BindTexture( weather == Weather.Rainy ? game.RainTexId : game.SnowTexId );
-			Vector3 eyePos = game.LocalPlayer.EyePosition;
-			Vector3 camPos = game.Camera.GetCameraPos( eyePos );
+			Vector3 camPos = game.CurrentCameraPos;
 			Vector3I pos = Vector3I.Floor( camPos );
 			bool moved = pos != lastPos;
 			lastPos = pos;

ClassicalSharp/Selections/SelectionManager.cs

@@ -38,12 +38,11 @@ namespace ClassicalSharp.Selections {
 		
 		SelectionBoxComparer comparer = new SelectionBoxComparer();
 		public void Render( double delta ) {
-			Player player = game.LocalPlayer;
 			if( selections.Count == 0 ) return;			
 			
 			// TODO: Proper selection box sorting. But this is very difficult because
 			// we can have boxes within boxes, intersecting boxes, etc. Probably not worth it.
-			Vector3 camPos = game.Camera.GetCameraPos( player.EyePosition );
+			Vector3 camPos = game.CurrentCameraPos;
 			for( int i = 0; i < selections.Count; i++ )
 				comparer.Intersect( selections[i], camPos );				
 			selections.Sort( comparer );

ClassicalSharp/Utils/Camera.cs

@@ -143,8 +143,10 @@ namespace ClassicalSharp {
 			CalcViewBobbing( delta );
 			Vector3 eyePos = player.EyePosition;
 			eyePos.Y += bobYOffset;
-			Vector3 cameraPos = eyePos - Utils.GetDirVector( player.YawRadians, player.PitchRadians ) * distance;
-			//Vector3 cameraPos = Picking.ClipCameraPos( game, eyePos, -Utils.GetDirVector( player.YawRadians, player.PitchRadians ), distance );
+			
+			Vector3 dir = -Utils.GetDirVector( player.YawRadians, player.PitchRadians );
+			Picking.ClipCameraPos( game, eyePos, dir, distance, game.CameraClipPos );
+			Vector3 cameraPos = game.CameraClipPos.IntersectPoint;
 			return Matrix4.LookAt( cameraPos, eyePos, Vector3.UnitY ) * tiltMatrix;
 		}
 		
@@ -153,7 +155,9 @@ namespace ClassicalSharp {
 		}
 		
 		public override Vector3 GetCameraPos( Vector3 eyePos ) {
-			return eyePos - Utils.GetDirVector( player.YawRadians, player.PitchRadians ) * distance;
+			Vector3 dir = -Utils.GetDirVector( player.YawRadians, player.PitchRadians );
+			Picking.ClipCameraPos( game, eyePos, dir, distance, game.CameraClipPos );
+			return game.CameraClipPos.IntersectPoint;
 		}
 	}
 	
@@ -173,7 +177,10 @@ namespace ClassicalSharp {
 			CalcViewBobbing( delta );
 			Vector3 eyePos = player.EyePosition;
 			eyePos.Y += bobYOffset;
-			Vector3 cameraPos = eyePos + Utils.GetDirVector( player.YawRadians, player.PitchRadians ) * distance;
+			
+			Vector3 dir = Utils.GetDirVector( player.YawRadians, player.PitchRadians );
+			Picking.ClipCameraPos( game, eyePos, dir, distance, game.CameraClipPos );
+			Vector3 cameraPos = game.CameraClipPos.IntersectPoint;
 			return Matrix4.LookAt( cameraPos, eyePos, Vector3.UnitY ) * tiltMatrix;
 		}
 		
@@ -182,7 +189,9 @@ namespace ClassicalSharp {
 		}
 		
 		public override Vector3 GetCameraPos( Vector3 eyePos ) {
-			return eyePos + Utils.GetDirVector( player.YawRadians, player.PitchRadians ) * distance;
+			Vector3 dir = Utils.GetDirVector( player.YawRadians, player.PitchRadians );
+			Picking.ClipCameraPos( game, eyePos, dir, distance, game.CameraClipPos );
+			return game.CameraClipPos.IntersectPoint;
 		}
 	}
 	

ClassicalSharp/Utils/Options.cs

@@ -36,6 +36,7 @@ namespace ClassicalSharp {
 		public const string PushbackPlacing = "pushbackplacing";
 		public const string InvertMouse = "invertmouse";
 		public const string NoclipSlide = "noclipslide";
+		public const string CameraClipping = "cameraclipping";
 	}
 	
 	// TODO: implement this

Launcher2/Launcher2.csproj

@@ -20,7 +20,7 @@
     <ApplicationIcon>icon.ico</ApplicationIcon>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Platform)' == 'AnyCPU' ">
-    <PlatformTarget>x86</PlatformTarget>
+    <PlatformTarget>AnyCPU</PlatformTarget>
     <BaseAddress>4194304</BaseAddress>
     <RegisterForComInterop>False</RegisterForComInterop>
     <GenerateSerializationAssemblies>Auto</GenerateSerializationAssemblies>