path: root/src/Blocks/BlockOre.h

#pragma once

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





class cBlockOreHandler :
	public cBlockHandler
{
	using Super = cBlockHandler;

public:

	using Super::Super;

protected:

	~cBlockOreHandler() = default;

private:

	virtual cItems ConvertToPickups(const NIBBLETYPE a_BlockMeta, const cItem * const a_Tool) const override
	{
		// If using silk-touch, drop self rather than the resource:
		if (ToolHasSilkTouch(a_Tool))
		{
			switch (m_BlockType)
			{
				// If it was a glowing redstone ore, drop a normal redstone ore:
				case E_BLOCK_REDSTONE_ORE_GLOWING:   return cItem(E_BLOCK_REDSTONE_ORE);
				default:                             return cItem(m_BlockType);
			}
		}

		const auto FortuneLevel = ToolFortuneLevel(a_Tool);

		if ((m_BlockType == E_BLOCK_REDSTONE_ORE) || (m_BlockType == E_BLOCK_REDSTONE_ORE_GLOWING))
		{   // Redstone follows the discrete random distribution, unlike other ores
			const auto DropNum = FortuneDiscreteRandom(4, 5, FortuneLevel);
			return cItem(E_ITEM_REDSTONE_DUST, DropNum);
		}

		auto & Random = GetRandomProvider();
		const auto DropMult = std::max(static_cast<char>(1), FloorC<char>(Random.RandReal(FortuneLevel + 2.0)));
		switch (m_BlockType)
		{
			case E_BLOCK_LAPIS_ORE:            return cItem(E_ITEM_DYE, DropMult * Random.RandInt<char>(4, 9), 4);
			case E_BLOCK_DIAMOND_ORE:          return cItem(E_ITEM_DIAMOND, DropMult);
			case E_BLOCK_EMERALD_ORE:          return cItem(E_ITEM_EMERALD, DropMult);
			case E_BLOCK_COAL_ORE:             return cItem(E_ITEM_COAL, DropMult);
			case E_BLOCK_NETHER_QUARTZ_ORE:    return cItem(E_ITEM_NETHER_QUARTZ, DropMult);
			case E_BLOCK_CLAY:                 return cItem(E_ITEM_CLAY, 4);
			default:
			{
				return cItem(m_BlockType);
			}
		}
	}





	virtual void OnBroken(
		cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface,
		Vector3i a_BlockPos,
		BLOCKTYPE a_OldBlockType, NIBBLETYPE a_OldBlockMeta,
		const cEntity * a_Digger
	) const override
	{
		if (a_Digger == nullptr)
		{
			return;
		}
		if (!a_Digger->IsPlayer())
		{
			return;
		}

		const auto Player = static_cast<const cPlayer *>(a_Digger);
		if (!Player->IsGameModeSurvival())
		{
			// Don't drop XP unless the player is in survival mode.
			return;
		}

		if (Player->GetEquippedItem().m_Enchantments.GetLevel(cEnchantments::enchSilkTouch) != 0)
		{
			// Don't drop XP when the ore is mined with the Silk Touch enchantment
			return;
		}

		if (!Player->GetEquippedItem().GetHandler().CanHarvestBlock(m_BlockType))
		{
			return;
		}

		auto & Random = GetRandomProvider();
		int Reward = 0;

		switch (a_OldBlockType)
		{
			case E_BLOCK_NETHER_QUARTZ_ORE:
			case E_BLOCK_LAPIS_ORE:
			{
				// Lapis and nether quartz get 2 - 5 experience
				Reward = Random.RandInt(2, 5);
				break;
			}
			case E_BLOCK_REDSTONE_ORE:
			case E_BLOCK_REDSTONE_ORE_GLOWING:
			{
				// Redstone gets 1 - 5 experience
				Reward = Random.RandInt(1, 5);
				break;
			}
			case E_BLOCK_DIAMOND_ORE:
			case E_BLOCK_EMERALD_ORE:
			{
				// Diamond and emerald get 3 - 7 experience
				Reward = Random.RandInt(3, 7);
				break;
			}
			case E_BLOCK_COAL_ORE:
			{
				// Coal gets 0 - 2 experience
				Reward = Random.RandInt(2);
				break;
			}

			default: break;
		}

		if (Reward > 0)
		{
			a_WorldInterface.SpawnSplitExperienceOrbs(Vector3d(0.5, 0.5, 0.5) + a_BlockPos, Reward);
		}
	}
} ;





class cDefaultOreHandler final :
	public cBlockOreHandler
{
public:

	using cBlockOreHandler::cBlockOreHandler;
};