Merge pull request #52 from ravenscroftj/feature/food

A few fixes for the hunger/food system + tests for swimming and submerged in cPlayer.

source/ClientHandle.cpp

@@ -504,9 +504,14 @@ void cClientHandle::HandlePlayerPos(double a_PosX, double a_PosY, double a_PosZ,
 	
 	// If a jump just started, process food exhaustion:
 	if ((a_PosY > m_Player->GetPosY()) && !a_IsOnGround && m_Player->IsOnGround())
+	{
+		// we only add this exhaustion if the player is not swimming - otherwise we end up with both jump + swim exhaustion
+
+		if(! m_Player->IsSwimming() )
 		{
 			m_Player->AddFoodExhaustion(m_Player->IsSprinting() ? 0.8 : 0.2);
 		}
+	}
 	
 	m_Player->MoveTo(Pos);
 	m_Player->SetStance(a_Stance);

source/Items/ItemFood.h

@@ -50,6 +50,7 @@ public:
 			case E_ITEM_ROTTEN_FLESH:     return FoodInfo(4, 0.8, 80);
 			case E_ITEM_SPIDER_EYE:       return FoodInfo(2, 3.2, 100);
 			case E_ITEM_STEAK:            return FoodInfo(8, 12.8);
+			case E_ITEM_MUSHROOM_SOUP:    return FoodInfo(6, 7.2);
 		}
 		LOGWARNING("%s: Unknown food item (%d), returning zero nutrition", __FUNCTION__, m_ItemType);
 		return FoodInfo(0, 0.f);

source/Items/ItemHandler.cpp

@@ -181,6 +181,7 @@ cItemHandler *cItemHandler::CreateItemHandler(int a_ItemType)
 		case E_ITEM_RED_APPLE:
 		case E_ITEM_GOLDEN_APPLE:
 		case E_ITEM_ROTTEN_FLESH:
+		case E_ITEM_MUSHROOM_SOUP:
 		case E_ITEM_SPIDER_EYE:
 		{
 			return new cItemFoodHandler(a_ItemType);

source/Player.cpp

@@ -61,6 +61,8 @@ cPlayer::cPlayer(cClientHandle* a_Client, const AString & a_PlayerName)
 	, m_SprintingMaxSpeed(0.13)
 	, m_IsCrouched(false)
 	, m_IsSprinting(false)
+	, m_IsSwimming(false)
+	, m_IsSubmerged(false)
 	, m_EatingFinishTick(-1)
 {
 	LOGD("Created a player object for \"%s\" @ \"%s\" at %p, ID %d", 
@@ -181,13 +183,16 @@ void cPlayer::Tick(float a_Dt, cChunk & a_Chunk)
 	
 	super::Tick(a_Dt, a_Chunk);
 	
+	// set player swimming state
+	SetSwimState( a_Chunk);
+
 	// handle air drowning stuff
-	HandleAir(a_Chunk);
+	HandleAir();
 
 	if (m_bDirtyPosition)
 	{
 		// Apply food exhaustion from movement:
-		ApplyFoodExhaustionFromMovement(a_Chunk);
+		ApplyFoodExhaustionFromMovement();
 		
 		cRoot::Get()->GetPluginManager()->CallHookPlayerMoving(*this);
 		BroadcastMovementUpdate(m_ClientHandle);
@@ -400,7 +405,14 @@ void cPlayer::FinishEating(void)
 		return;
 	}
 	ItemHandler->OnFoodEaten(m_World, this, &Item);
+
 	GetInventory().RemoveOneEquippedItem();
+
+	//if the food is mushroom soup, return a bowl to the inventory
+	if( Item.m_ItemType == E_ITEM_MUSHROOM_SOUP ) {
+		cItem emptyBowl(E_ITEM_BOWL, 1, 0, "");
+		GetInventory().AddItem(emptyBowl, true, true);
+	}
 }
 
 
@@ -1319,20 +1331,35 @@ void cPlayer::UseEquippedItem()
 	GetInventory().DamageEquippedItem();
 }
 
+void cPlayer::SetSwimState(cChunk & a_Chunk)
+{
 
-void cPlayer::HandleAir(cChunk & a_Chunk)
+	BLOCKTYPE BlockIn;
+	int RelX = (int)floor(m_LastPosX) - a_Chunk.GetPosX() * cChunkDef::Width;
+	int RelY = (int)floor(m_LastPosY + 0.1);
+	int RelZ = (int)floor(m_LastPosZ) - a_Chunk.GetPosZ() * cChunkDef::Width;
+	
+	// first we check if the player is swimming
+
+	// Use Unbounded, because we're being called *after* processing super::Tick(), which could have changed our chunk
+	VERIFY(a_Chunk.UnboundedRelGetBlockType(RelX, RelY, RelZ, BlockIn));
+
+	m_IsSwimming = IsBlockWater(BlockIn);
+
+	// now we check if the player is submerged
+
+	VERIFY(a_Chunk.UnboundedRelGetBlockType(RelX, RelY+1, RelZ, BlockIn));
+
+	m_IsSubmerged = IsBlockWater(BlockIn);
+}
+
+void cPlayer::HandleAir()
 {
 	// Ref.: http://www.minecraftwiki.net/wiki/Chunk_format
 	// see if the player is /submerged/ water (block above is water)
 	// Get the type of block the player's standing in:
-	BLOCKTYPE BlockIn;
-	int RelX = (int)floor(m_LastPosX) - a_Chunk.GetPosX() * cChunkDef::Width;
-	int RelY = (int)floor(m_LastPosY + 1.1);
-	int RelZ = (int)floor(m_LastPosZ) - a_Chunk.GetPosZ() * cChunkDef::Width;
-	// Use Unbounded, because we're being called *after* processing super::Tick(), which could have changed our chunk
-	VERIFY(a_Chunk.UnboundedRelGetBlockType(RelX, RelY, RelZ, BlockIn));
 
-	if (IsBlockWater(BlockIn))
+	if (IsSubmerged())
 	{
 		// either reduce air level or damage player
 		if(m_AirLevel < 1)
@@ -1419,7 +1446,7 @@ void cPlayer::HandleFood(void)
 
 
 
-void cPlayer::ApplyFoodExhaustionFromMovement(cChunk & a_Chunk)
+void cPlayer::ApplyFoodExhaustionFromMovement()
 {
 	if (IsGameModeCreative())
 	{
@@ -1437,14 +1464,6 @@ void cPlayer::ApplyFoodExhaustionFromMovement(cChunk & a_Chunk)
 		return;
 	}
 
-	// Get the type of block the player's standing in:
-	BLOCKTYPE BlockIn;
-	int RelX = (int)floor(m_LastPosX) - a_Chunk.GetPosX() * cChunkDef::Width;
-	int RelY = (int)floor(m_LastPosY + 0.1);
-	int RelZ = (int)floor(m_LastPosZ) - a_Chunk.GetPosZ() * cChunkDef::Width;
-	// Use Unbounded, because we're being called *after* processing super::Tick(), which could have changed our chunk
-	VERIFY(a_Chunk.UnboundedRelGetBlockType(RelX, RelY, RelZ, BlockIn));
-
 	// Apply the exhaustion based on distance travelled:
 	double BaseExhaustion = Movement.Length();
 	if (IsSprinting())
@@ -1452,7 +1471,7 @@ void cPlayer::ApplyFoodExhaustionFromMovement(cChunk & a_Chunk)
 		// 0.1 pt per meter sprinted
 		BaseExhaustion = BaseExhaustion * 0.1;
 	}
-	else if (IsBlockWater(BlockIn))
+	else if (IsSwimming())
 	{
 		// 0.015 pt per meter swum
 		BaseExhaustion = BaseExhaustion * 0.015;

source/Player.h

@@ -253,6 +253,12 @@ public:
 	/// Starts or stops sprinting, sends the max speed update to the client, if needed
 	void SetSprint(bool a_IsSprinting);
 	
+	/// Returns whether the player is swimming or not
+	virtual bool IsSwimming(void) const{ return m_IsSwimming; }
+
+	/// Return whether the player is under water or not
+	virtual bool IsSubmerged(void) const{ return m_IsSubmerged; }
+
 	// tolua_end
 	
 	// cEntity overrides:
@@ -260,6 +266,8 @@ public:
 	virtual bool IsSprinting(void) const { return m_IsSprinting; }
 	virtual bool IsRclking  (void) const { return IsEating(); }
 
+
+
 protected:
 	typedef std::map< std::string, bool > PermissionMap;
 	PermissionMap m_ResolvedPermissions;
@@ -335,6 +343,9 @@ protected:
 	bool m_IsCrouched;
 	bool m_IsSprinting;
 
+	bool m_IsSwimming;
+	bool m_IsSubmerged;
+
 	/// The world tick in which eating will be finished. -1 if not eating
 	Int64 m_EatingFinishTick;
 
@@ -347,10 +358,13 @@ protected:
 	void HandleFood(void);
 	
 	/// Called in each tick to handle air-related processing i.e. drowning
-	void HandleAir(cChunk & a_Chunk);
+	void HandleAir();
+
+	/// Called once per tick to set IsSwimming and IsSubmerged
+	void SetSwimState(cChunk & a_Chunk);
 
 	/// Adds food exhaustion based on the difference between Pos and LastPos, sprinting status and swimming (in water block)
-	void ApplyFoodExhaustionFromMovement(cChunk & a_Chunk);
+	void ApplyFoodExhaustionFromMovement();
 } ; // tolua_export