MinecraftConsoles/Minecraft.World/ItemFrame.cpp

#include "stdafx.h"

#include "net.minecraft.world.entity.item.h"
#include "net.minecraft.world.item.h"
#include "net.minecraft.world.phys.h"
#include "net.minecraft.world.level.h"
#include "net.minecraft.world.entity.player.h"
#include "net.minecraft.world.entity.h"
#include "net.minecraft.world.level.tile.h"
#include "net.minecraft.world.level.saveddata.h"
#include "com.mojang.nbt.h"
#include "ItemFrame.h"




// 4J - added for common ctor code
void ItemFrame::_init()
{
	// 4J Stu - This function call had to be moved here from the Entity ctor to ensure that
	// the derived version of the function is called
	this->defineSynchedData();

	dropChance = 1;
}

ItemFrame::ItemFrame(Level *level) : HangingEntity( level )
{
	_init();
}

ItemFrame::ItemFrame(Level *level, int xTile, int yTile, int zTile, int dir) : HangingEntity( level, xTile, yTile, zTile, dir )
{
	_init();
	setDir(dir);
}

void ItemFrame::defineSynchedData() 
{
	getEntityData()->defineNULL(DATA_ITEM, nullptr);
	getEntityData()->define(DATA_ROTATION, static_cast<byte>(0));
}

bool ItemFrame::shouldRenderAtSqrDistance(double distance)
{
	double size = 16;
	size *= 64.0f * viewScale;
	return distance < size * size;
}

void ItemFrame::dropItem(shared_ptr<Entity> causedBy) 
{
	shared_ptr<ItemInstance> item = getItem();

	if (causedBy != nullptr && causedBy->instanceof(eTYPE_PLAYER))
	{
		if (dynamic_pointer_cast<Player>(causedBy)->abilities.instabuild)
		{
			removeFramedMap(item);
			return;
		}
	}

	spawnAtLocation(std::make_shared<ItemInstance>(Item::frame), 0);
	if ( (item != nullptr) && (random->nextFloat() < dropChance) )
	{
		item = item->copy();
		removeFramedMap(item);
		spawnAtLocation(item, 0);
	}
}

void ItemFrame::removeFramedMap(shared_ptr<ItemInstance> item)
{
	if (item == nullptr) return;
	if (item->id == Item::map_Id)
	{
		shared_ptr<MapItemSavedData> mapItemSavedData = Item::map->getSavedData(item, level);
		mapItemSavedData->removeItemFrameDecoration(item);
		//mapItemSavedData.decorations.remove("frame-" + entityId);
	}
	item->setFramed(nullptr);
}

shared_ptr<ItemInstance> ItemFrame::getItem() 
{
	return getEntityData()->getItemInstance(DATA_ITEM);
}

void ItemFrame::setItem(shared_ptr<ItemInstance> item) 
{
	if(item != nullptr)
	{
		item = item->copy();
		item->count = 1;

		item->setFramed(dynamic_pointer_cast<ItemFrame>( shared_from_this() ));
	}
	getEntityData()->set(DATA_ITEM, item);
	getEntityData()->markDirty(DATA_ITEM);
}

int ItemFrame::getRotation() 
{
	return getEntityData()->getByte(DATA_ROTATION);
}

void ItemFrame::setRotation(int rotation) 
{
	getEntityData()->set(DATA_ROTATION, static_cast<byte>(rotation % 4));
}

void ItemFrame::addAdditonalSaveData(CompoundTag *tag) 
{
	if (getItem() != nullptr) 
	{
		tag->putCompound(L"Item", getItem()->save(new CompoundTag()));
		tag->putByte(L"ItemRotation", static_cast<byte>(getRotation()));
		tag->putFloat(L"ItemDropChance", dropChance);
	}
	HangingEntity::addAdditonalSaveData(tag);
}

void ItemFrame::readAdditionalSaveData(CompoundTag *tag) 
{
	CompoundTag *itemTag = tag->getCompound(L"Item");
	if (itemTag != nullptr && !itemTag->isEmpty()) 
	{
		setItem(ItemInstance::fromTag(itemTag));
		setRotation(tag->getByte(L"ItemRotation"));

		if (tag->contains(L"ItemDropChance")) dropChance = tag->getFloat(L"ItemDropChance");
	}
	HangingEntity::readAdditionalSaveData(tag);
}

bool ItemFrame::interact(shared_ptr<Player> player) 
{
	if(!player->isAllowedToInteract(shared_from_this()))
	{
		return false;
	}

	if (getItem() == nullptr) 
	{
		shared_ptr<ItemInstance> item = player->getCarriedItem();

		if (item != nullptr) 
		{
			if (!level->isClientSide)//isClientSide) 
			{
				setItem(item);

				if (!player->abilities.instabuild) 
				{
					if (--item->count <= 0) 
					{
						player->inventory->setItem(player->inventory->selected, nullptr);
					}
				}
			}
		}
	} 
	else 
	{
		if (!level->isClientSide)//isClientSide) 
		{
			setRotation(getRotation() + 1);
		}
	}

	return true;
}