コード例 #1
0
ファイル: Monster.cpp プロジェクト: axisd/MCServer
void cMonster::TickPathFinding()
{
	const int PosX = POSX_TOINT;
	const int PosY = POSY_TOINT;
	const int PosZ = POSZ_TOINT;

	m_FinalDestination.y = (double)FindFirstNonAirBlockPosition(m_FinalDestination.x, m_FinalDestination.z);

	std::vector<Vector3d> m_PotentialCoordinates;
	m_TraversedCoordinates.push_back(Vector3i(PosX, PosY, PosZ));

	static const struct // Define which directions to try to move to
	{
		int x, z;
	} gCrossCoords[] =
	{
		{ 1, 0},
		{-1, 0},
		{ 0, 1},
		{ 0,-1},
	} ;
	
	if ((PosY - 1 < 0) || (PosY + 2 > cChunkDef::Height) /* PosY + 1 will never be true if PosY + 2 is not */)
	{
		// Too low/high, can't really do anything
		FinishPathFinding();
		return;
	}

	for (size_t i = 0; i < ARRAYCOUNT(gCrossCoords); i++)
	{
		if (IsCoordinateInTraversedList(Vector3i(gCrossCoords[i].x + PosX, PosY, gCrossCoords[i].z + PosZ)))
		{
			continue;
		}

		BLOCKTYPE BlockAtY = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY, gCrossCoords[i].z + PosZ);
		BLOCKTYPE BlockAtYP = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY + 1, gCrossCoords[i].z + PosZ);
		BLOCKTYPE BlockAtYPP = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY + 2, gCrossCoords[i].z + PosZ);
		int LowestY = FindFirstNonAirBlockPosition(gCrossCoords[i].x + PosX, gCrossCoords[i].z + PosZ);
		BLOCKTYPE BlockAtLowestY = m_World->GetBlock(gCrossCoords[i].x + PosX, LowestY, gCrossCoords[i].z + PosZ);

		if (
			(!cBlockInfo::IsSolid(BlockAtY)) &&
			(!cBlockInfo::IsSolid(BlockAtYP)) &&
			(!IsBlockLava(BlockAtLowestY)) &&
			(BlockAtLowestY != E_BLOCK_CACTUS) &&
			(PosY - LowestY < FALL_DAMAGE_HEIGHT)
			)
		{
			m_PotentialCoordinates.push_back(Vector3d((gCrossCoords[i].x + PosX), PosY, gCrossCoords[i].z + PosZ));
		}
		else if (
			(cBlockInfo::IsSolid(BlockAtY)) &&
			(BlockAtY != E_BLOCK_CACTUS) &&
			(!cBlockInfo::IsSolid(BlockAtYP)) &&
			(!cBlockInfo::IsSolid(BlockAtYPP)) &&
			(BlockAtY != E_BLOCK_FENCE) &&
			(BlockAtY != E_BLOCK_FENCE_GATE)
			)
		{
			m_PotentialCoordinates.push_back(Vector3d((gCrossCoords[i].x + PosX), PosY + 1, gCrossCoords[i].z + PosZ));
		}
	}

	if (!m_PotentialCoordinates.empty())
	{
		Vector3f ShortestCoords = m_PotentialCoordinates.front();
		for (std::vector<Vector3d>::const_iterator itr = m_PotentialCoordinates.begin(); itr != m_PotentialCoordinates.end(); ++itr)
		{
			Vector3f Distance = m_FinalDestination - ShortestCoords;
			Vector3f Distance2 = m_FinalDestination - *itr;
			if (Distance.SqrLength() > Distance2.SqrLength())
			{
				ShortestCoords = *itr;
			}
		}

		m_Destination = ShortestCoords;
		m_Destination.z += 0.5f;
		m_Destination.x += 0.5f;
	}
	else
	{
		FinishPathFinding();
	}
}
コード例 #2
0
ファイル: Monster.cpp プロジェクト: codebucketdev/MCServer
void cMonster::TickPathFinding()
{
	int PosX = (int)floor(GetPosX());
	int PosY = (int)floor(GetPosY());
	int PosZ = (int)floor(GetPosZ());

	m_FinalDestination.y = (double)FindFirstNonAirBlockPosition(m_FinalDestination.x, m_FinalDestination.z);

	std::vector<Vector3d> m_PotentialCoordinates;
	m_TraversedCoordinates.push_back(Vector3i(PosX, PosY, PosZ));

	static const struct // Define which directions to try to move to
	{
		int x, z;
	} gCrossCoords[] =
	{
		{ 1, 0},
		{-1, 0},
		{ 0, 1},
		{ 0,-1},
	} ;

	for (size_t i = 0; i < ARRAYCOUNT(gCrossCoords); i++)
	{
		if ((gCrossCoords[i].x + PosX == PosX) && (gCrossCoords[i].z + PosZ == PosZ))
		{
			continue;
		}

		if (IsCoordinateInTraversedList(Vector3i(gCrossCoords[i].x + PosX, PosY, gCrossCoords[i].z + PosZ)))
		{
			continue;
		}

		BLOCKTYPE BlockAtY = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY, gCrossCoords[i].z + PosZ);
		BLOCKTYPE BlockAtYP = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY + 1, gCrossCoords[i].z + PosZ);
		BLOCKTYPE BlockAtYPP = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY + 2, gCrossCoords[i].z + PosZ);
		BLOCKTYPE BlockAtYM = m_World->GetBlock(gCrossCoords[i].x + PosX, PosY - 1, gCrossCoords[i].z + PosZ);

		if ((!g_BlockIsSolid[BlockAtY]) && (!g_BlockIsSolid[BlockAtYP]) && (!IsBlockLava(BlockAtYM)) && (BlockAtY != E_BLOCK_FENCE) && (BlockAtY != E_BLOCK_FENCE_GATE))
		{
			m_PotentialCoordinates.push_back(Vector3d((gCrossCoords[i].x + PosX), PosY, gCrossCoords[i].z + PosZ));
		}
		else if ((g_BlockIsSolid[BlockAtY]) && (!g_BlockIsSolid[BlockAtYP]) && (!g_BlockIsSolid[BlockAtYPP]) && (!IsBlockLava(BlockAtYM)) && (BlockAtY != E_BLOCK_FENCE) && (BlockAtY != E_BLOCK_FENCE_GATE))
		{
			m_PotentialCoordinates.push_back(Vector3d((gCrossCoords[i].x + PosX), PosY + 1, gCrossCoords[i].z + PosZ));
		}
	}

	if (!m_PotentialCoordinates.empty())
	{
		Vector3f ShortestCoords = m_PotentialCoordinates.front();
		for (std::vector<Vector3d>::const_iterator itr = m_PotentialCoordinates.begin(); itr != m_PotentialCoordinates.end(); ++itr)
		{
			Vector3f Distance = m_FinalDestination - ShortestCoords;
			Vector3f Distance2 = m_FinalDestination - *itr;
			if (Distance.SqrLength() > Distance2.SqrLength())
			{
				ShortestCoords = *itr;
			}
		}

		m_Destination = ShortestCoords;
		m_Destination.z += 0.5f;
		m_Destination.x += 0.5f;
	}
	else
	{
		FinishPathFinding();
	}
}