FeatherMC/src/world/Chunk.h

#pragma once

#include "Types.h"

#include "nbt/NBT.h"
#include "PalettedContainer.h"
#include "block/state/BlockState.h"

#include <cstdint>


namespace Feather
{
	// 16x16x16 sections of a chunk
	struct ChunkSection
	{
		static constexpr size_t MaximumLongCount = (16 * 16 * 16) * 14 / 64;

		std::array<uint64_t, MaximumLongCount> blockStates;

		// TODO: this should eventually be Palette<BlockState>
		// Palette of local indexs to indexs in the global palette
		IDMapper<int> localPalette;

		uint8_t bitsPerBlock;
	};

	// Chunk: 16x256x16 world chunk
	class Chunk
	{
	public:
		static constexpr int NUM_SECTIONS = 16;

		// Each chunk is made of up 16 ChunkSections
		ChunkSection sections[NUM_SECTIONS];

		ChunkPos pos;

		// TODO: save heightmaps here
		// UNSERIALIZED
		//const NBT::CompoundTag* heightmaps;

		Chunk(ChunkPos& pos, NBT::CompoundTag& tag);
	};
};