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#pragma once
#include <unordered_map>
#include "../BlockState.h"
/** Parses and holds a collection of block types and their possible states
together with their corresponding Id within the Minecraft network protocol. */
class ProtocolBlockTypePalette
{
public:
static const UInt32 NOT_FOUND = UINT32_MAX;
/** Create a new empty instance. */
ProtocolBlockTypePalette();
/** Loads the palette from a string.
See loadFromStream() for further details. */
bool loadFromString(const AString & aMapping);
/** Loads the palette from an input stream.
Returns `true` on success, `false` otherwise. Sucessive calls to this method
will _add_ data to the palette. If duplicate keys are encountered, they will
be ignored and an info message logged. */
bool loadFromStream(std::istream & aInputStream);
/** Returns the defined index corresponding of the given aBlockTypeName and
aBlockState.
Returns ProtocolBlockTypePalette::NOT_FOUND if the tuple is not found. */
UInt32 index(const AString & aBlockTypeName, const BlockState & aBlockState) const;
/** Clears the palette. */
void clear();
protected:
/** The palette index. Each item in the map represents a single block state
palette entry. The value is the block state ID. */
std::unordered_map<AString, std::map<BlockState, UInt32>> mIndex;
};
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