Smelting Gives Experience (cuberite#4094)

* Smelting Exp

Smelting now gives experience

* Furnace.txt update

Exp rewards are entered in furnace.txt, Reward calculation is now done
is the furnaceentity class

* furnace.txt update

Changed alignment tabs to spaces
Included documentation of exp in recipe

* Updated StringToFloat

changed strtod to strtof

* Explicit Float to Int

* Reworked Smelting Rewards

* No C casts

-Adds new function to the api
-Sets reward counter to 0 in furnace constructor

* Style and exp lock removed

-Fixed  style mistakes accoring to PR notes
-XP isn't locked to a single player anymore

* No Smelter API

-Removed SetLastSmelter and GetLastSmelter
-Fixed comments
-Fixed log reward amounts

Server/Plugins/APIDump/Classes/BlockEntities.lua

@@ -964,6 +964,16 @@ World:ForEachChestInChunk(Player:GetChunkX(), Player:GetChunkZ(),
 				},
 				Notes = "Returns true if there's time before the current fuel is depleted",
 			},
+			GetAndResetReward =
+			{
+				Returns =
+				{
+					{
+						Type = "number",
+					},
+				},
+				Notes = "Calculates, resets, and returns the experience reward in this furnace",
+			},
 			SetFuelSlot =
 			{
 				Params =

Server/furnace.txt

@@ -19,12 +19,13 @@
 #
 # **** Recipe and result ****
 #
-# Cobble @ 200 = Stone -> Produces 1 smooth stone from 1 cobblestone in 200 ticks (10 seconds)
+# Cobble @ 200 = Stone $ 15    -> Produces 1 smooth stone from 1 cobblestone in 200 ticks (10 seconds). Rewards 15 experience.
 #
 # Write in full:
-#    Cobble  :   0    ,   1    @  200  =    1     :   1    ,   1
-#   ItemType : Damage , Amount @ ticks = ItemType : Damage , Amount
+#    Cobble  :   0    ,   1    @  200  =    1     :   1    ,   1     $    10
+#   ItemType : Damage , Amount @ ticks = ItemType : Damage , Amount  $ Experience 
 #
+#   If the experience paramater isn't included, experience reward will default to zero.
 #
 # **** Fuel ****
 #
@@ -42,74 +43,73 @@
 #--------------------------
 # Smelting recipes
 
-Beef                = Steak
-BlackTerracotta     = BlackGlazedTerracotta
-BlueTerracotta      = BlueGlazedTerracotta
-BrownTerracotta     = BrownGlazedTerracotta
-Cactus              = CactusGreen
-ChainmailBoots      = IronNugget
-ChainmailChestplate = IronNugget
-ChainmailHelmet     = IronNugget
-ChainmailLeggings   = IronNugget
-Chicken             = CookedChicken
-ChorusFruit         = PoppedChorusFruit
-Clay                = Brick
-ClayBlock           = HardenedClay
-CoalOre             = Coal
-Cobblestone         = Stone
-CrackedStonebrick   = Stonebrick
-CyanTerracotta      = CyanGlazedTerracotta
-DiamondOre          = Diamond
-EmeraldOre          = Emerald
-Fish                = CookedFish
-GoldOre             = GoldIngot
-GoldAxe             = GoldNugget
-GoldBoots           = GoldNugget
-GoldChestplate      = GoldNugget
-GoldHorseArmor      = GoldNugget
-GoldHelmet          = GoldNugget
-GoldHoe             = GoldNugget
-GoldPants           = GoldNugget
-GoldPickaxe         = GoldNugget
-GoldShovel          = GoldNugget
-GoldSword           = GoldNugget
-GrayTerracotta      = GrayGlazedTerracotta
-GreenTerracotta     = GreenGlazedTerracotta
-IronOre             = IronIngot
-IronAxe             = IronNugget
-IronBoots           = IronNugget
-IronChestplate      = IronNugget
-IronHorseArmor      = IronNugget
-IronHelmet          = IronNugget
-IronHoe             = IronNugget
-IronLeggings        = IronNugget
-IronPickaxe         = IronNugget
-IronShovel          = IronNugget
-IronSword           = IronNugget
-LapisOre            = LapisLazuli
-LightBlueTerracotta = LightBlueGlazedTerracotta
-LightGrayTerracotta = LightGrayGlazedTerracotta
-LimeTerracotta      = LimeGlazedTerracotta
-Log                 = CharCoal
-Log2                = CharCoal
-MagentaTerracotta   = MagentaGlazedTerracotta
-Mutton              = CookedMutton
-NetherQuartzOre     = NetherQuartz
-Netherrack          = NetherBrick
-OrangeTerracotta    = OrangeGlazedTerracotta
-PinkTerracotta      = PinkGlazedTerracotta
-Porkchop            = CookedPorkchop
-Potato              = BakedPotato
-PurpleTerracotta    = PurpleGlazedTerracotta
-Rabbit              = CookedRabbit
-RedTerracotta       = RedGlazedTerracotta
-RedstoneOre         = Redstone
-Salmon              = CookedSalmon
-Sand                = Glass
-StoneBrick          = CrackedStoneBricks
-WetSponge           = Sponge
-WhiteTerracotta     = WhiteGlazedTerracotta
-YellowTerracotta    = YellowGlazedTerracotta
+Beef                = Steak                              $ 0.35
+BlackTerracotta     = BlackGlazedTerracotta              $ 0.1
+BlueTerracotta      = BlueGlazedTerracotta               $ 0.1
+BrownTerracotta     = BrownGlazedTerracotta              $ 0.10
+Cactus              = CactusGreen                        $ 0.2
+ChainmailBoots      = IronNugget                         $ 0.1
+ChainmailChestplate = IronNugget                         $ 0.1
+ChainmailHelmet     = IronNugget                         $ 0.1
+ChainmailLeggings   = IronNugget                         $ 0.1
+Chicken             = CookedChicken                      $ 0.35
+ChorusFruit         = PoppedChorusFruit                  $ 0.1
+Clay                = Brick                              $ 0.3
+ClayBlock           = HardenedClay                       $ 0.35
+CoalOre             = Coal                               $ 0.1
+Cobblestone         = Stone                              $ 0.1
+CyanTerracotta      = CyanGlazedTerracotta               $ 0.1
+DiamondOre          = Diamond                            $ 1.0
+EmeraldOre          = Emerald                            $ 1.0
+Fish                = CookedFish                         $ 0.35
+GoldOre             = GoldIngot                          $ 1.0
+GoldAxe             = GoldNugget                         $ 0.1
+GoldBoots           = GoldNugget                         $ 0.1
+GoldChestplate      = GoldNugget                         $ 0.1
+GoldHorseArmor      = GoldNugget                         $ 0.1
+GoldHelmet          = GoldNugget                         $ 0.1
+GoldHoe             = GoldNugget                         $ 0.1
+GoldPants           = GoldNugget                         $ 0.1
+GoldPickaxe         = GoldNugget                         $ 0.1
+GoldShovel          = GoldNugget                         $ 0.1
+GoldSword           = GoldNugget                         $ 0.1
+GrayTerracotta      = GrayGlazedTerracotta               $ 0.1
+GreenTerracotta     = GreenGlazedTerracotta              $ 0.1
+IronOre             = IronIngot                          $ 0.7
+IronAxe             = IronNugget                         $ 0.1
+IronBoots           = IronNugget                         $ 0.1
+IronChestplate      = IronNugget                         $ 0.1
+IronHorseArmor      = IronNugget                         $ 0.1
+IronHelmet          = IronNugget                         $ 0.1
+IronHoe             = IronNugget                         $ 0.1
+IronLeggings        = IronNugget                         $ 0.1
+IronPickaxe         = IronNugget                         $ 0.1
+IronShovel          = IronNugget                         $ 0.1
+IronSword           = IronNugget                         $ 0.1
+LapisOre            = LapisLazuli                        $ 0.2
+LightBlueTerracotta = LightBlueGlazedTerracotta          $ 0.1
+LightGrayTerracotta = LightGrayGlazedTerracotta          $ 0.1
+LimeTerracotta      = LimeGlazedTerracotta               $ 0.1
+Log                 = CharCoal                           $ 0.15
+Log2                = CharCoal                           $ 0.15
+MagentaTerracotta   = MagentaGlazedTerracotta            $ 0.1
+Mutton              = CookedMutton                       $ 0.35
+NetherQuartzOre     = NetherQuartz                       $ 0.2
+Netherrack          = NetherBrick                        $ 0.1
+OrangeTerracotta    = OrangeGlazedTerracotta             $ 0.1
+PinkTerracotta      = PinkGlazedTerracotta               $ 0.1
+Porkchop            = CookedPorkchop                     $ 0.35
+Potato              = BakedPotato                        $ 0.35
+PurpleTerracotta    = PurpleGlazedTerracotta             $ 0.1
+Rabbit              = CookedRabbit                       $ 0.35
+RedTerracotta       = RedGlazedTerracotta                $ 0.1
+RedstoneOre         = Redstone                           $ 0.7
+Salmon              = CookedSalmon                       $ 0.35
+Sand                = Glass                              $ 0.1
+StoneBrick          = CrackedStoneBricks                 $ 0.1
+WetSponge           = Sponge                             $ 0.15
+WhiteTerracotta     = WhiteGlazedTerracotta              $ 0.1
+YellowTerracotta    = YellowGlazedTerracotta             $ 0.1
 
 
 

src/BlockEntities/FurnaceEntity.cpp

@@ -32,6 +32,7 @@ cFurnaceEntity::cFurnaceEntity(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, in
 	m_TimeCooked(0),
 	m_FuelBurnTime(0),
 	m_TimeBurned(0),
+	m_RewardCounter(0),
 	m_IsLoading(false)
 {
 	m_Contents.AddListener(*this);
@@ -173,6 +174,23 @@ bool cFurnaceEntity::ContinueCooking(void)
 
 
 
+int cFurnaceEntity::GetAndResetReward(void)
+{
+	int Reward = FloorC(m_RewardCounter);
+	float Remainder = m_RewardCounter - static_cast<float>(Reward);
+	// Remainder is used as the percent chance of getting an extra xp point
+	if (GetRandomProvider().RandBool(Remainder))
+	{
+		Reward++;
+	}
+	m_RewardCounter = 0.0;
+	return Reward;
+}
+
+
+
+
+
 void cFurnaceEntity::BroadcastProgress(short a_ProgressbarID, short a_Value)
 {
 	cWindow * Window = GetWindow();
@@ -189,6 +207,7 @@ void cFurnaceEntity::BroadcastProgress(short a_ProgressbarID, short a_Value)
 void cFurnaceEntity::FinishOne()
 {
 	m_TimeCooked = 0;
+	m_RewardCounter += m_CurrentRecipe->Reward;
 
 	if (m_Contents.GetSlot(fsOutput).IsEmpty())
 	{

src/BlockEntities/FurnaceEntity.h

@@ -84,6 +84,9 @@ class cFurnaceEntity :
 	/** Returns true if there's time left before the current fuel is depleted */
 	bool HasFuelTimeLeft(void) const { return (GetFuelBurnTimeLeft() > 0); }
 
+	/** Calculates, resets, and returns the experience reward in this furnace */
+	int GetAndResetReward(void);
+
 	// tolua_end
 
 	void SetBurnTimes(int a_FuelBurnTime, int a_TimeBurned)
@@ -130,6 +133,9 @@ class cFurnaceEntity :
 	/** Amount of ticks that the current fuel has been burning */
 	int m_TimeBurned;
 
+	/** Running total of experience that can be picked up */
+	float m_RewardCounter;
+
 	/** Is the block currently being loaded into the world? */
 	bool m_IsLoading;
 

src/FurnaceRecipe.cpp

@@ -161,6 +161,7 @@ void cFurnaceRecipe::AddRecipeFromLine(const AString & a_Line, unsigned int a_Li
 	Line.erase(std::remove_if(Line.begin(), Line.end(), isspace), Line.end());
 
 	int CookTime = 200;
+	float Reward = 0;
 	std::unique_ptr<cItem> InputItem = cpp14::make_unique<cItem>();
 	std::unique_ptr<cItem> OutputItem = cpp14::make_unique<cItem>();
 
@@ -189,18 +190,27 @@ void cFurnaceRecipe::AddRecipeFromLine(const AString & a_Line, unsigned int a_Li
 			return;
 		}
 	}
-
-	if (!ParseItem(Sides[1], *OutputItem))
+	const AStringVector & OutputSplit = StringSplit(Sides[1], "$");
+	if (!ParseItem(OutputSplit[0], *OutputItem))
 	{
-		LOGWARNING("furnace.txt: line %d: Cannot parse output item \"%s\".", a_LineNum, Sides[1].c_str());
+		LOGWARNING("furnace.txt: line %d: Cannot parse output item \"%s\".", a_LineNum, OutputSplit[0].c_str());
 		LOGINFO("Offending line: \"%s\"", a_Line.c_str());
 		return;
 	}
-
+	if (OutputSplit.size() > 1)
+	{
+		if (!StringToFloat(OutputSplit[1], Reward))
+		{
+			LOGWARNING("furnace.txt: line %d: Cannot parse reward \"%s\".", a_LineNum, OutputSplit[1].c_str());
+			LOGINFO("Offending line: \"%s\"", a_Line.c_str());
+			return;
+		}
+	}
 	cRecipe Recipe;
 	Recipe.In = InputItem.release();
 	Recipe.Out = OutputItem.release();
 	Recipe.CookTime = CookTime;
+	Recipe.Reward = Reward;
 	m_pState->Recipes.push_back(Recipe);
 }
 

src/FurnaceRecipe.h

@@ -30,6 +30,7 @@ class cFurnaceRecipe
 		cItem * In;
 		cItem * Out;
 		int CookTime;  ///< How long this recipe takes to smelt, in ticks
+		float Reward;  ///< Experience reward for creating 1 of this item
 	};
 
 	/** Returns a recipe for the specified input, nullptr if no recipe found */

src/StringUtils.cpp

@@ -1051,3 +1051,15 @@ AString StringsConcat(const AStringVector & a_Strings, char a_Separator)
 	}
 	return res;
 }
+
+bool StringToFloat(const AString & a_String, float & a_Num)
+{
+	char *err;
+	a_Num = strtof(a_String.c_str(), &err);
+	if (*err != 0)
+	{
+		return false;
+	}
+	return true;
+}
+

src/StringUtils.h

@@ -146,6 +146,9 @@ extern AStringVector MergeStringVectors(const AStringVector & a_Strings1, const
 /** Concatenates the specified strings into a single string, separated by the specified separator. */
 extern AString StringsConcat(const AStringVector & a_Strings, char a_Separator);
 
+/** Converts a string into a float. Returns false if the conversion fails. */
+extern bool StringToFloat(const AString & a_String, float & a_Num);
+
 
 
 

src/UI/SlotArea.cpp

@@ -1909,7 +1909,6 @@ const cItem * cSlotAreaFurnace::GetSlot(int a_SlotNum, cPlayer & a_Player) const
 
 void cSlotAreaFurnace::SetSlot(int a_SlotNum, cPlayer & a_Player, const cItem & a_Item)
 {
-	UNUSED(a_Player);
 	m_Furnace->SetSlot(a_SlotNum, a_Item);
 }
 
@@ -1932,6 +1931,12 @@ void cSlotAreaFurnace::OnSlotChanged(cItemGrid * a_ItemGrid, int a_SlotNum)
 
 void cSlotAreaFurnace::HandleSmeltItem(const cItem & a_Result, cPlayer & a_Player)
 {
+	int Reward = m_Furnace->GetAndResetReward();
+	if (Reward > 0)
+	{
+		a_Player.GetWorld()->SpawnExperienceOrb(a_Player.GetPosX(), a_Player.GetPosY(), a_Player.GetPosZ(), Reward);
+	}
+
 	/** TODO 2014-05-12 xdot: Figure out when to call this method. */
 	switch (a_Result.m_ItemType)
 	{