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path: root/Minecraft.World/MinecartItem.cpp
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#include "stdafx.h"
#include "net.minecraft.world.entity.item.h"
#include "net.minecraft.world.entity.player.h"
#include "net.minecraft.world.level.h"
#include "net.minecraft.world.level.tile.h"
#include "ItemInstance.h"
#include "MinecartItem.h"


shared_ptr<ItemInstance> MinecartItem::MinecartDispenseBehavior::execute(BlockSource *source, shared_ptr<ItemInstance> dispensed, eOUTCOME &outcome)
{
	FacingEnum *facing = DispenserTile::getFacing(source->getData());
	Level *world = source->getWorld();

	// Spawn the minecart 'just' outside the dispenser, it overlaps 2 'pixels' now.
	// Also at half-block-height so it can connect with sloped rails
	double spawnX = source->getX() + facing->getStepX() * (1 + 2.0f / 16);
	double spawnY = source->getY() + facing->getStepY() * (1 + 2.0f / 16);
	double spawnZ = source->getZ() + facing->getStepZ() * (1 + 2.0f / 16);

	int frontX = source->getBlockX() + facing->getStepX();
	int frontY = source->getBlockY() + facing->getStepY();
	int frontZ = source->getBlockZ() + facing->getStepZ();
	int inFront = world->getTile(frontX, frontY, frontZ);

	// 4J: If we're at limit, just dispense item (instead of adding minecart)
	if (world->countInstanceOf(eTYPE_MINECART, false) >= Level::MAX_CONSOLE_MINECARTS)
	{
		outcome = DISPENCED_ITEM;
		return defaultDispenseItemBehavior.dispense(source, dispensed);
	}

	double yOffset;
	if (BaseRailTile::isRail(inFront))
	{
		yOffset = 0;
	}
	else if (inFront == 0 && BaseRailTile::isRail(world->getTile(frontX, frontY - 1, frontZ)))
	{
		yOffset = -1;
	}
	else
	{
		outcome = DISPENCED_ITEM;
		return defaultDispenseItemBehavior.dispense(source, dispensed);
	}

	outcome = ACTIVATED_ITEM;

	shared_ptr<Minecart> minecart = Minecart::createMinecart(world, spawnX, spawnY + yOffset, spawnZ, ((MinecartItem *) dispensed->getItem())->type);
	if (dispensed->hasCustomHoverName())
	{
		minecart->setCustomName(dispensed->getHoverName());
	}
	world->addEntity(minecart);

	dispensed->remove(1);
	return dispensed;
}

void MinecartItem::MinecartDispenseBehavior::playSound(BlockSource *source)
{
	source->getWorld()->levelEvent(LevelEvent::SOUND_CLICK, source->getBlockX(), source->getBlockY(), source->getBlockZ(), 0);
}

MinecartItem::MinecartItem(int id, int type) : Item(id)
{
	maxStackSize = 1;
	this->type = type;
	DispenserTile::REGISTRY.add(this, new MinecartDispenseBehavior());
}

bool MinecartItem::useOn(shared_ptr<ItemInstance> instance, shared_ptr<Player> player, Level *level, int x, int y, int z, int face, float clickX, float clickY, float clickZ, bool bTestUseOnOnly)
{
	// 4J-PB - Adding a test only version to allow tooltips to be displayed
	int targetType = level->getTile(x, y, z);

	if (BaseRailTile::isRail(targetType)) 
	{
		if(!bTestUseOnOnly)
		{
			if (!level->isClientSide) 
			{
				shared_ptr<Minecart> cart = Minecart::createMinecart(level, x + 0.5f, y + 0.5f, z + 0.5f, type);
				if (instance->hasCustomHoverName())
				{
					cart->setCustomName(instance->getHoverName());
				}
				level->addEntity(cart);
			}
			instance->count--;
		}
		return true;
	}
	return false;
}