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path: root/src/Items/ItemHandler.cpp
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#include "Globals.h"
#include "ItemHandler.h"
#include "../Item.h"
#include "../World.h"
#include "../Entities/Player.h"
#include "../FastRandom.h"
#include "../BlockInServerPluginInterface.h"

// Handlers:
#include "ItemArmor.h"
#include "ItemBed.h"
#include "ItemBoat.h"
#include "ItemBow.h"
#include "ItemBrewingStand.h"
#include "ItemBucket.h"
#include "ItemCake.h"
#include "ItemCauldron.h"
#include "ItemCloth.h"
#include "ItemComparator.h"
#include "ItemDoor.h"
#include "ItemMilk.h"
#include "ItemDye.h"
#include "ItemEmptyMap.h"
#include "ItemFishingRod.h"
#include "ItemFlowerPot.h"
#include "ItemFood.h"
#include "ItemItemFrame.h"
#include "ItemHoe.h"
#include "ItemLeaves.h"
#include "ItemLighter.h"
#include "ItemLilypad.h"
#include "ItemMap.h"
#include "ItemMinecart.h"
#include "ItemNetherWart.h"
#include "ItemPainting.h"
#include "ItemPickaxe.h"
#include "ItemPotion.h"
#include "ItemThrowable.h"
#include "ItemRedstoneDust.h"
#include "ItemRedstoneRepeater.h"
#include "ItemSapling.h"
#include "ItemSeeds.h"
#include "ItemShears.h"
#include "ItemShovel.h"
#include "ItemSign.h"
#include "ItemMobHead.h"
#include "ItemSpawnEgg.h"
#include "ItemString.h"
#include "ItemSugarcane.h"
#include "ItemSword.h"

#include "../Blocks/BlockHandler.h"





bool cItemHandler::m_HandlerInitialized = false;
cItemHandler * cItemHandler::m_ItemHandler[2268];





cItemHandler * cItemHandler::GetItemHandler(int a_ItemType)
{
	if ((a_ItemType < 0) || ((unsigned long)a_ItemType >= ARRAYCOUNT(m_ItemHandler)))
	{
		// Either nothing (-1), or bad value, both cases should return the air handler
		if (a_ItemType < -1)
		{
			ASSERT(!"Bad item type");
		}
		a_ItemType = 0;
	}

	if (!m_HandlerInitialized)
	{
		// We need to initialize
		memset(m_ItemHandler, 0, sizeof(m_ItemHandler));
		m_HandlerInitialized = true;
	}
	if (m_ItemHandler[a_ItemType] == NULL)
	{
		m_ItemHandler[a_ItemType] = CreateItemHandler(a_ItemType);
	}
	return m_ItemHandler[a_ItemType];
}





cItemHandler *cItemHandler::CreateItemHandler(int a_ItemType)
{
	switch (a_ItemType)
	{
		default:                       return new cItemHandler(a_ItemType);
		
		// Single item per handler, alphabetically sorted:
		case E_BLOCK_LEAVES:           return new cItemLeavesHandler(a_ItemType);
		case E_BLOCK_NEW_LEAVES:       return new cItemLeavesHandler(a_ItemType);
		case E_BLOCK_SAPLING:          return new cItemSaplingHandler(a_ItemType);
		case E_BLOCK_WOOL:             return new cItemClothHandler(a_ItemType);
		case E_ITEM_BED:               return new cItemBedHandler(a_ItemType);
		case E_ITEM_BOAT:              return new cItemBoatHandler(a_ItemType);
		case E_ITEM_BOTTLE_O_ENCHANTING: return new cItemBottleOEnchantingHandler();
		case E_ITEM_BOW:               return new cItemBowHandler;
		case E_ITEM_BREWING_STAND:     return new cItemBrewingStandHandler(a_ItemType);
		case E_ITEM_CAKE:              return new cItemCakeHandler(a_ItemType);
		case E_ITEM_CAULDRON:          return new cItemCauldronHandler(a_ItemType);
		case E_ITEM_COMPARATOR:        return new cItemComparatorHandler(a_ItemType);
		case E_ITEM_DYE:               return new cItemDyeHandler(a_ItemType);
		case E_ITEM_EGG:               return new cItemEggHandler();
		case E_ITEM_EMPTY_MAP:         return new cItemEmptyMapHandler();
		case E_ITEM_ENDER_PEARL:       return new cItemEnderPearlHandler();
		case E_ITEM_FIRE_CHARGE:       return new cItemLighterHandler(a_ItemType);
		case E_ITEM_FIREWORK_ROCKET:   return new cItemFireworkHandler();
		case E_ITEM_FISHING_ROD:       return new cItemFishingRodHandler(a_ItemType);
		case E_ITEM_FLINT_AND_STEEL:   return new cItemLighterHandler(a_ItemType);
		case E_ITEM_FLOWER_POT:        return new cItemFlowerPotHandler(a_ItemType);
		case E_BLOCK_LILY_PAD:         return new cItemLilypadHandler(a_ItemType);
		case E_ITEM_MAP:               return new cItemMapHandler();
		case E_ITEM_MILK:              return new cItemMilkHandler();
		case E_ITEM_ITEM_FRAME:        return new cItemItemFrameHandler(a_ItemType);
		case E_ITEM_NETHER_WART:       return new cItemNetherWartHandler(a_ItemType);
		case E_ITEM_PAINTING:          return new cItemPaintingHandler(a_ItemType);
		case E_ITEM_POTIONS:           return new cItemPotionHandler();
		case E_ITEM_REDSTONE_DUST:     return new cItemRedstoneDustHandler(a_ItemType);
		case E_ITEM_REDSTONE_REPEATER: return new cItemRedstoneRepeaterHandler(a_ItemType);
		case E_ITEM_SHEARS:            return new cItemShearsHandler(a_ItemType);
		case E_ITEM_SIGN:              return new cItemSignHandler(a_ItemType);
		case E_ITEM_HEAD:              return new cItemMobHeadHandler(a_ItemType);
		case E_ITEM_SNOWBALL:          return new cItemSnowballHandler();
		case E_ITEM_SPAWN_EGG:         return new cItemSpawnEggHandler(a_ItemType);
		case E_ITEM_STRING:            return new cItemStringHandler(a_ItemType);
		case E_ITEM_SUGARCANE:         return new cItemSugarcaneHandler(a_ItemType);
		
		case E_ITEM_WOODEN_HOE:
		case E_ITEM_STONE_HOE:
		case E_ITEM_IRON_HOE:
		case E_ITEM_GOLD_HOE:
		case E_ITEM_DIAMOND_HOE:
		{
			return new cItemHoeHandler(a_ItemType);
		}
		
		case E_ITEM_WOODEN_PICKAXE:
		case E_ITEM_STONE_PICKAXE:
		case E_ITEM_IRON_PICKAXE:
		case E_ITEM_GOLD_PICKAXE:
		case E_ITEM_DIAMOND_PICKAXE:
		{
			return new cItemPickaxeHandler(a_ItemType);
		}
		
		case E_ITEM_WOODEN_SHOVEL:
		case E_ITEM_STONE_SHOVEL:
		case E_ITEM_IRON_SHOVEL:
		case E_ITEM_GOLD_SHOVEL:
		case E_ITEM_DIAMOND_SHOVEL:
		{
			return new cItemShovelHandler(a_ItemType);
		}
		
		case E_ITEM_WOODEN_SWORD:
		case E_ITEM_STONE_SWORD:
		case E_ITEM_IRON_SWORD:
		case E_ITEM_GOLD_SWORD:
		case E_ITEM_DIAMOND_SWORD:
		{
			return new cItemSwordHandler(a_ItemType);
		}
		
		case E_ITEM_BUCKET:
		case E_ITEM_WATER_BUCKET:
		case E_ITEM_LAVA_BUCKET:
		{
			return new cItemBucketHandler(a_ItemType);
		}
		
		case E_ITEM_CARROT:
		case E_ITEM_MELON_SEEDS:
		case E_ITEM_POTATO:
		case E_ITEM_PUMPKIN_SEEDS:
		case E_ITEM_SEEDS:
		{
			return new cItemSeedsHandler(a_ItemType);
		}
		
		case E_ITEM_IRON_DOOR:
		case E_ITEM_WOODEN_DOOR:
		{
			return new cItemDoorHandler(a_ItemType);
		}
		
		case E_ITEM_MINECART:
		case E_ITEM_CHEST_MINECART:
		case E_ITEM_FURNACE_MINECART:
		case E_ITEM_MINECART_WITH_TNT:
		case E_ITEM_MINECART_WITH_HOPPER:
		{
			return new cItemMinecartHandler(a_ItemType);
		}
		
		// Food (please keep alpha-sorted):
		// (carrots and potatoes handled in SeedHandler as both seed and food
		case E_ITEM_BAKED_POTATO:
		case E_ITEM_BREAD:
		case E_ITEM_COOKED_CHICKEN:
		case E_ITEM_COOKED_FISH:
		case E_ITEM_COOKED_PORKCHOP:
		case E_ITEM_COOKIE:
		case E_ITEM_GOLDEN_APPLE:
		case E_ITEM_GOLDEN_CARROT:
		case E_ITEM_MELON_SLICE:
		case E_ITEM_MUSHROOM_SOUP:
		case E_ITEM_POISONOUS_POTATO:
		case E_ITEM_PUMPKIN_PIE:
		case E_ITEM_RAW_BEEF:
		case E_ITEM_RAW_CHICKEN:
		case E_ITEM_RAW_FISH:
		case E_ITEM_RAW_PORKCHOP:
		case E_ITEM_RED_APPLE:
		case E_ITEM_ROTTEN_FLESH:
		case E_ITEM_SPIDER_EYE:
		case E_ITEM_STEAK:
		{
			return new cItemFoodHandler(a_ItemType);
		}

		// Armor:
		case E_ITEM_LEATHER_CAP:
		case E_ITEM_GOLD_HELMET:
		case E_ITEM_CHAIN_HELMET:
		case E_ITEM_IRON_HELMET:
		case E_ITEM_DIAMOND_HELMET:
		case E_ITEM_LEATHER_TUNIC:
		case E_ITEM_GOLD_CHESTPLATE:
		case E_ITEM_CHAIN_CHESTPLATE:
		case E_ITEM_IRON_CHESTPLATE:
		case E_ITEM_DIAMOND_CHESTPLATE:
		case E_ITEM_LEATHER_PANTS:
		case E_ITEM_GOLD_LEGGINGS:
		case E_ITEM_CHAIN_LEGGINGS:
		case E_ITEM_IRON_LEGGINGS:
		case E_ITEM_DIAMOND_LEGGINGS:
		case E_ITEM_LEATHER_BOOTS:
		case E_ITEM_GOLD_BOOTS:
		case E_ITEM_CHAIN_BOOTS:
		case E_ITEM_IRON_BOOTS:
		case E_ITEM_DIAMOND_BOOTS:
		{
			return new cItemArmorHandler(a_ItemType);
		}
	}
}





void cItemHandler::Deinit()
{
	for (int i = 0; i < 2267; i++)
	{
		delete m_ItemHandler[i];
		m_ItemHandler[i] = NULL;
	}
	memset(m_ItemHandler, 0, sizeof(m_ItemHandler));  // Don't leave any dangling pointers around, just in case
	m_HandlerInitialized = false;
}





cItemHandler::cItemHandler(int a_ItemType)
{
	m_ItemType = a_ItemType;
}





bool cItemHandler::OnItemUse(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_Dir)
{
	UNUSED(a_World);
	UNUSED(a_Player);
	UNUSED(a_Item);
	UNUSED(a_BlockX);
	UNUSED(a_BlockY);
	UNUSED(a_BlockZ);
	UNUSED(a_Dir);

	return false;
}





bool cItemHandler::OnDiggingBlock(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_Dir)
{
	UNUSED(a_World);
	UNUSED(a_Player);
	UNUSED(a_Item);
	UNUSED(a_BlockX);
	UNUSED(a_BlockY);
	UNUSED(a_BlockZ);
	UNUSED(a_Dir);
	
	return false;
}





void cItemHandler::OnBlockDestroyed(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ)
{
	UNUSED(a_Item);
	
	BLOCKTYPE Block = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ);
	cBlockHandler * Handler = cBlockInfo::GetHandler(Block);

	if (a_Player->IsGameModeSurvival())
	{
		cChunkInterface ChunkInterface(a_World->GetChunkMap());
		cBlockInServerPluginInterface PluginInterface(*a_World);
		Handler->DropBlock(ChunkInterface, *a_World, PluginInterface, a_Player, a_BlockX, a_BlockY, a_BlockZ, CanHarvestBlock(Block), a_Player->GetEquippedItem().m_Enchantments.GetLevel(cEnchantments::enchSilkTouch) > 0);
	}

	if (!cBlockInfo::IsOneHitDig(Block))
	{
		a_Player->UseEquippedItem(GetDurabilityLostWithThatAction(dlaBreakBlock));
	}
}





void cItemHandler::OnEntityAttack(cPlayer * a_Attacker, cEntity * a_AttackedEntity)
{
	UNUSED(a_AttackedEntity);
	a_Attacker->UseEquippedItem(GetDurabilityLostWithThatAction(dlaAttackEntity));
}





void cItemHandler::OnFoodEaten(cWorld * a_World, cPlayer * a_Player, cItem * a_Item)
{
	UNUSED(a_World);
	UNUSED(a_Player);
	UNUSED(a_Item);
}





short cItemHandler::GetDurabilityLostWithThatAction(eDurabilityLostAction a_Action)
{
	switch (a_Action)
	{
		case dlaAttackEntity: return 2;
		case dlaBreakBlock:   return 1;
	}
	return 0;
}





char cItemHandler::GetMaxStackSize(void)
{
	if (m_ItemType < 256)
	{
		// All blocks can stack up to 64
		return 64;
	}
	
	switch (m_ItemType)
	{
		case E_ITEM_ARROW:                return 64;
		case E_ITEM_BAKED_POTATO:         return 64;
		case E_ITEM_BLAZE_POWDER:         return 64;
		case E_ITEM_BLAZE_ROD:            return 64;
		case E_ITEM_BONE:                 return 64;
		case E_ITEM_BOOK:                 return 64;
		case E_ITEM_BOTTLE_O_ENCHANTING:  return 64;
		case E_ITEM_BOWL:                 return 64;
		case E_ITEM_BREAD:                return 64;
		case E_ITEM_BREWING_STAND:        return 64;
		case E_ITEM_BUCKET:               return 16;
		case E_ITEM_CARROT:               return 64;
		case E_ITEM_CAKE:                 return 1;
		case E_ITEM_CAULDRON:             return 64;
		case E_ITEM_CLAY:                 return 64;
		case E_ITEM_CLAY_BRICK:           return 64;
		case E_ITEM_CLOCK:                return 64;
		case E_ITEM_COAL:                 return 64;
		case E_ITEM_COMPARATOR:           return 64;
		case E_ITEM_COMPASS:              return 64;
		case E_ITEM_COOKED_CHICKEN:       return 64;
		case E_ITEM_COOKED_FISH:          return 64;
		case E_ITEM_COOKED_PORKCHOP:      return 64;
		case E_ITEM_COOKIE:               return 64;
		case E_ITEM_DIAMOND:              return 64;
		case E_ITEM_DYE:                  return 64;
		case E_ITEM_EGG:                  return 16;
		case E_ITEM_EMERALD:              return 64;
		case E_ITEM_ENDER_PEARL:          return 16;
		case E_ITEM_EYE_OF_ENDER:         return 64;
		case E_ITEM_FEATHER:              return 64;
		case E_ITEM_FERMENTED_SPIDER_EYE: return 64;
		case E_ITEM_FIRE_CHARGE:          return 64;
		case E_ITEM_FIREWORK_ROCKET:      return 64;
		case E_ITEM_FIREWORK_STAR:        return 64;
		case E_ITEM_FLINT:                return 64;
		case E_ITEM_FLOWER_POT:           return 64;
		case E_ITEM_GHAST_TEAR:           return 64;
		case E_ITEM_GLASS_BOTTLE:         return 64;
		case E_ITEM_GLISTERING_MELON:     return 64;
		case E_ITEM_GLOWSTONE_DUST:       return 64;
		case E_ITEM_GOLD:                 return 64;
		case E_ITEM_GOLDEN_APPLE:         return 64;
		case E_ITEM_GOLDEN_CARROT:        return 64;
		case E_ITEM_GOLD_NUGGET:          return 64;
		case E_ITEM_GUNPOWDER:            return 64;
		case E_ITEM_HEAD:                 return 64;
		case E_ITEM_IRON:                 return 64;
		case E_ITEM_ITEM_FRAME:           return 64;
		case E_ITEM_LEATHER:              return 64;
		case E_ITEM_MAGMA_CREAM:          return 64;
		case E_ITEM_MAP:                  return 64;
		case E_ITEM_MELON_SEEDS:          return 64;
		case E_ITEM_MELON_SLICE:          return 64;
		case E_ITEM_NETHER_BRICK:         return 64;
		case E_ITEM_NETHER_WART:          return 64;
		case E_ITEM_PAINTING:             return 64;
		case E_ITEM_PAPER:                return 64;
		case E_ITEM_POISONOUS_POTATO:     return 64;
		case E_ITEM_POTATO:               return 64;
		case E_ITEM_PUMPKIN_PIE:          return 64;
		case E_ITEM_PUMPKIN_SEEDS:        return 64;
		case E_ITEM_RAW_BEEF:             return 64;
		case E_ITEM_RAW_CHICKEN:          return 64;
		case E_ITEM_RAW_FISH:             return 64;
		case E_ITEM_RAW_PORKCHOP:         return 64;
		case E_ITEM_RED_APPLE:            return 64;
		case E_ITEM_REDSTONE_DUST:        return 64;
		case E_ITEM_REDSTONE_REPEATER:    return 64;
		case E_ITEM_ROTTEN_FLESH:         return 64;
		case E_ITEM_SEEDS:                return 64;
		case E_ITEM_SIGN:                 return 16;
		case E_ITEM_SLIMEBALL:            return 64;
		case E_ITEM_SNOWBALL:             return 16;
		case E_ITEM_SPAWN_EGG:            return 64;
		case E_ITEM_SPIDER_EYE:           return 64;
		case E_ITEM_STEAK:                return 64;
		case E_ITEM_STICK:                return 64;
		case E_ITEM_STRING:               return 64;
		case E_ITEM_SUGAR:                return 64;
		case E_ITEM_SUGAR_CANE:           return 64;
		case E_ITEM_WHEAT:                return 64;
	}
	// By default items don't stack:
	return 1;
}





bool cItemHandler::IsTool()
{
	// TODO: Rewrite this to list all tools specifically
	return
		((m_ItemType >= 256) && (m_ItemType <= 259)) ||
		(m_ItemType == 261) ||
		((m_ItemType >= 267) && (m_ItemType <= 279)) ||
		((m_ItemType >= 283) && (m_ItemType <= 286)) ||
		((m_ItemType >= 290) && (m_ItemType <= 294)) ||
		(m_ItemType == 325) ||
		(m_ItemType == 346);
}





bool cItemHandler::IsFood(void)
{
	return false;
}





bool cItemHandler::IsDrinkable(short a_ItemDamage)
{
	UNUSED(a_ItemDamage);
	
	return false;
}





bool cItemHandler::IsPlaceable(void)
{
	// We can place any block that has a corresponding E_BLOCK_TYPE:
	return (m_ItemType >= 1) && (m_ItemType <= E_BLOCK_MAX_TYPE_ID);
}






bool cItemHandler::CanRepairWithRawMaterial(short a_ItemType)
{
	UNUSED(a_ItemType);
	return false;
}





bool cItemHandler::CanHarvestBlock(BLOCKTYPE a_BlockType)
{
	switch (a_BlockType)
	{
		case E_BLOCK_ANVIL:
		case E_BLOCK_ENCHANTMENT_TABLE:
		case E_BLOCK_FURNACE:
		case E_BLOCK_LIT_FURNACE:
		case E_BLOCK_COAL_ORE:
		case E_BLOCK_STONE:
		case E_BLOCK_COBBLESTONE:
		case E_BLOCK_END_STONE:
		case E_BLOCK_MOSSY_COBBLESTONE:
		case E_BLOCK_SANDSTONE_STAIRS:
		case E_BLOCK_SANDSTONE:
		case E_BLOCK_STONE_BRICKS:
		case E_BLOCK_NETHER_BRICK:
		case E_BLOCK_NETHERRACK:
		case E_BLOCK_STONE_SLAB:
		case E_BLOCK_DOUBLE_STONE_SLAB:
		case E_BLOCK_STONE_PRESSURE_PLATE:
		case E_BLOCK_BRICK:
		case E_BLOCK_COBBLESTONE_STAIRS:
		case E_BLOCK_COBBLESTONE_WALL:
		case E_BLOCK_STONE_BRICK_STAIRS:
		case E_BLOCK_NETHER_BRICK_STAIRS:
		case E_BLOCK_CAULDRON:
		case E_BLOCK_OBSIDIAN:
		case E_BLOCK_DIAMOND_BLOCK:
		case E_BLOCK_DIAMOND_ORE:
		case E_BLOCK_GOLD_BLOCK:
		case E_BLOCK_GOLD_ORE:
		case E_BLOCK_REDSTONE_ORE:
		case E_BLOCK_REDSTONE_ORE_GLOWING:
		case E_BLOCK_EMERALD_ORE:
		case E_BLOCK_IRON_BLOCK:
		case E_BLOCK_IRON_ORE:
		case E_BLOCK_LAPIS_ORE:
		case E_BLOCK_LAPIS_BLOCK:
		case E_BLOCK_SNOW:
		case E_BLOCK_VINES:
		{
			return false;
		}
		default: return true;
	}
}





bool cItemHandler::GetPlacementBlockTypeMeta(
	cWorld * a_World, cPlayer * a_Player,
	int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
	int a_CursorX, int a_CursorY, int a_CursorZ,
	BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
)
{
	ASSERT(m_ItemType < 256);  // Items with IDs above 255 should all be handled by specific handlers
	
	if (m_ItemType >= 256)
	{
		LOGERROR("%s: Item %d is not eligible for direct block placement!", __FUNCTION__, m_ItemType);
		return false;
	}
	
	cBlockHandler * BlockH = BlockHandler((BLOCKTYPE)m_ItemType);
	cChunkInterface ChunkInterface(a_World->GetChunkMap());
	return BlockH->GetPlacementBlockTypeMeta(
		ChunkInterface, a_Player,
		a_BlockX, a_BlockY, a_BlockZ, a_BlockFace,
		a_CursorX, a_CursorY, a_CursorZ,
		a_BlockType, a_BlockMeta
	);
}





bool cItemHandler::EatItem(cPlayer * a_Player, cItem * a_Item)
{
	UNUSED(a_Item);
	
	FoodInfo Info = GetFoodInfo();

	if ((Info.FoodLevel > 0) || (Info.Saturation > 0.f))
	{
		bool Success = a_Player->Feed(Info.FoodLevel, Info.Saturation);
		
		// If consumed and there's chance of foodpoisoning, do it:
		if (Success && (Info.PoisonChance > 0))
		{
			cFastRandom r1;
			if ((r1.NextInt(100, a_Player->GetUniqueID()) - Info.PoisonChance) <= 0)
			{
				a_Player->FoodPoison(600);  // Give the player food poisoning for 30 seconds.
			}
		}

		return Success;
	}

	return false;
}





cItemHandler::FoodInfo cItemHandler::GetFoodInfo()
{
	return FoodInfo(0, 0);
}