#pragma once

#include "../Vector3.h"

class cWorld;
class cChunk;





class cSimulator
{
public:
	cSimulator(cWorld & a_World)
		: m_World(a_World)
	{
	}

	virtual ~cSimulator() {}

	/** Called in each tick, a_Dt is the time passed since the last tick, in msec */
	virtual void Simulate(float a_Dt) = 0;
	
	/** Called in each tick for each chunk, a_Dt is the time passed since the last tick, in msec; direct access to chunk data available */
	virtual void SimulateChunk(std::chrono::milliseconds a_Dt, int a_ChunkX, int a_ChunkZ, cChunk * a_Chunk)
	{
		UNUSED(a_Dt);
		UNUSED(a_ChunkX);
		UNUSED(a_ChunkZ);
		UNUSED(a_Chunk);
	}
	
	/** Called when a block changes */
	virtual void WakeUp(int a_BlockX, int a_BlockY, int a_BlockZ, cChunk * a_Chunk);

	virtual bool IsAllowedBlock(BLOCKTYPE a_BlockType) = 0;

protected:
	friend class cChunk;  // Calls AddBlock() in its WakeUpSimulators() function, to speed things up
	
	/** Called to simulate a new block */
	virtual void AddBlock(int a_BlockX, int a_BlockY, int a_BlockZ, cChunk * a_Chunk) = 0;

	cWorld & m_World;
} ;