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cuberite-2a/src/Blocks/BlockRail.h

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#pragma once
enum ENUM_PURE
{
E_PURE_UPDOWN = 0,
E_PURE_DOWN = 1,
E_PURE_NONE = 2
};
class cBlockRailHandler final :
public cClearMetaOnDrop<cBlockHandler>
{
using Super = cClearMetaOnDrop<cBlockHandler>;
public:
using Super::Super;
static NIBBLETYPE FindMeta(cChunkInterface & a_ChunkInterface, Vector3i a_BlockPos, BLOCKTYPE a_RailType)
{
NIBBLETYPE Meta = 0;
char RailsCnt = 0;
bool Neighbors[8]; // 0 - EAST, 1 - WEST, 2 - NORTH, 3 - SOUTH, 4 - EAST UP, 5 - WEST UP, 6 - NORTH UP, 7 - SOUTH UP
memset(Neighbors, 0, sizeof(Neighbors));
Neighbors[0] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(1, 0, 0)) || !IsNotConnected(a_ChunkInterface, a_BlockPos, BLOCK_FACE_EAST, E_PURE_DOWN));
Neighbors[1] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(-1, 0, 0)) || !IsNotConnected(a_ChunkInterface, a_BlockPos, BLOCK_FACE_WEST, E_PURE_DOWN));
Neighbors[2] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(0, 0, -1)) || !IsNotConnected(a_ChunkInterface, a_BlockPos, BLOCK_FACE_NORTH, E_PURE_DOWN));
Neighbors[3] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(0, 0, 1)) || !IsNotConnected(a_ChunkInterface, a_BlockPos, BLOCK_FACE_SOUTH, E_PURE_DOWN));
Neighbors[4] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(1, 1, 0)) || !IsNotConnected(a_ChunkInterface, a_BlockPos + Vector3i(0, 1, 0), BLOCK_FACE_EAST, E_PURE_NONE));
Neighbors[5] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(-1, 1, 0)) || !IsNotConnected(a_ChunkInterface, a_BlockPos + Vector3i(0, 1, 0), BLOCK_FACE_WEST, E_PURE_NONE));
Neighbors[6] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(0, 1, -1)) || !IsNotConnected(a_ChunkInterface, a_BlockPos + Vector3i(0, 1, 0), BLOCK_FACE_NORTH, E_PURE_NONE));
Neighbors[7] = (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(0, 1, 1)) || !IsNotConnected(a_ChunkInterface, a_BlockPos + Vector3i(0, 1, 0), BLOCK_FACE_SOUTH, E_PURE_NONE));
if (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(1, -1, 0)) || !IsNotConnected(a_ChunkInterface, a_BlockPos - Vector3i(0, 1, 0), BLOCK_FACE_EAST))
{
Neighbors[0] = true;
}
if (IsUnstable(a_ChunkInterface, a_BlockPos - Vector3i(1, 1, 0)) || !IsNotConnected(a_ChunkInterface, a_BlockPos - Vector3i(0, 1, 0), BLOCK_FACE_WEST))
{
Neighbors[1] = true;
}
if (IsUnstable(a_ChunkInterface, a_BlockPos - Vector3i(0, 1, 1)) || !IsNotConnected(a_ChunkInterface, a_BlockPos - Vector3i(0, 1, 0), BLOCK_FACE_NORTH))
{
Neighbors[2] = true;
}
if (IsUnstable(a_ChunkInterface, a_BlockPos + Vector3i(0, -1, 1)) || !IsNotConnected(a_ChunkInterface, a_BlockPos - Vector3i(0, 1, 0), BLOCK_FACE_SOUTH))
{
Neighbors[3] = true;
}
for (int i = 0; i < 8; i++)
{
if (Neighbors[i])
{
RailsCnt++;
}
}
if (RailsCnt == 1)
{
if (Neighbors[7])
{
return E_META_RAIL_ASCEND_ZP;
}
else if (Neighbors[6])
{
return E_META_RAIL_ASCEND_ZM;
}
else if (Neighbors[5])
{
return E_META_RAIL_ASCEND_XM;
}
else if (Neighbors[4])
{
return E_META_RAIL_ASCEND_XP;
}
else if (Neighbors[0] || Neighbors[1])
{
return E_META_RAIL_XM_XP;
}
else if (Neighbors[2] || Neighbors[3])
{
return E_META_RAIL_ZM_ZP;
}
ASSERT(!"Weird neighbor count");
return Meta;
}
for (int i = 0; i < 4; i++)
{
if (Neighbors[i + 4])
{
Neighbors[i] = true;
}
}
if (RailsCnt > 1)
{
const bool CanCurve = a_RailType == E_BLOCK_RAIL;
if (Neighbors[3] && Neighbors[0] && CanCurve)
{
return E_META_RAIL_CURVED_ZP_XP;
}
else if (Neighbors[3] && Neighbors[1] && CanCurve)
{
return E_META_RAIL_CURVED_ZP_XM;
}
else if (Neighbors[2] && Neighbors[0] && CanCurve)
{
return E_META_RAIL_CURVED_ZM_XP;
}
else if (Neighbors[2] && Neighbors[1] && CanCurve)
{
return E_META_RAIL_CURVED_ZM_XM;
}
else if (Neighbors[7] && Neighbors[2])
{
return E_META_RAIL_ASCEND_ZP;
}
else if (Neighbors[3] && Neighbors[6])
{
return E_META_RAIL_ASCEND_ZM;
}
else if (Neighbors[5] && Neighbors[0])
{
return E_META_RAIL_ASCEND_XM;
}
else if (Neighbors[4] && Neighbors[1])
{
return E_META_RAIL_ASCEND_XP;
}
else if (Neighbors[0] && Neighbors[1])
{
return E_META_RAIL_XM_XP;
}
else if (Neighbors[2] && Neighbors[3])
{
return E_META_RAIL_ZM_ZP;
}
if (CanCurve)
{
ASSERT(!"Weird neighbor count");
}
}
return Meta;
}
private:
virtual bool CanBeAt(const cChunk & a_Chunk, const Vector3i a_Position, NIBBLETYPE a_Meta) const override
{
if ((a_Position.y <= 0) || !cBlockInfo::FullyOccupiesVoxel(a_Chunk.GetBlock(a_Position.addedY(-1))))
{
return false;
}
switch (a_Meta)
{
case E_META_RAIL_ASCEND_XP:
case E_META_RAIL_ASCEND_XM:
case E_META_RAIL_ASCEND_ZM:
case E_META_RAIL_ASCEND_ZP:
{
// Mapping between the meta and the neighbors that need checking
a_Meta -= E_META_RAIL_ASCEND_XP; // Base index at zero
static const Vector3i Coords[] =
{
{ 1, 0, 0}, // east, XP
{-1, 0, 0}, // west, XM
{ 0, 0, -1}, // north, ZM
{ 0, 0, 1}, // south, ZP
} ;
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
if (!a_Chunk.UnboundedRelGetBlock(a_Position + Coords[a_Meta], BlockType, BlockMeta))
{
// Too close to the edge, cannot simulate
return true;
}
return cBlockInfo::FullyOccupiesVoxel(BlockType);
}
}
return true;
}
static bool IsUnstable(cChunkInterface & a_ChunkInterface, Vector3i a_Pos)
{
if (!IsBlockRail(a_ChunkInterface.GetBlock(a_Pos)))
{
return false;
}
NIBBLETYPE Meta = a_ChunkInterface.GetBlockMeta(a_Pos);
switch (Meta)
{
case E_META_RAIL_ZM_ZP:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_NORTH, E_PURE_DOWN) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_SOUTH, E_PURE_DOWN)
)
{
return true;
}
break;
}
case E_META_RAIL_XM_XP:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_EAST, E_PURE_DOWN) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_WEST, E_PURE_DOWN)
)
{
return true;
}
break;
}
case E_META_RAIL_ASCEND_XP:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos + Vector3i(0, 1, 0), BLOCK_FACE_EAST) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_WEST)
)
{
return true;
}
break;
}
case E_META_RAIL_ASCEND_XM:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_EAST) ||
IsNotConnected(a_ChunkInterface, a_Pos + Vector3i(0, 1, 0), BLOCK_FACE_WEST)
)
{
return true;
}
break;
}
case E_META_RAIL_ASCEND_ZM:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos + Vector3i(0, 1, 0), BLOCK_FACE_NORTH) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_SOUTH)
)
{
return true;
}
break;
}
case E_META_RAIL_ASCEND_ZP:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_NORTH) ||
IsNotConnected(a_ChunkInterface, a_Pos + Vector3i(0, 1, 0), BLOCK_FACE_SOUTH)
)
{
return true;
}
break;
}
case E_META_RAIL_CURVED_ZP_XP:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_SOUTH) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_EAST)
)
{
return true;
}
break;
}
case E_META_RAIL_CURVED_ZP_XM:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_SOUTH) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_WEST)
)
{
return true;
}
break;
}
case E_META_RAIL_CURVED_ZM_XM:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_NORTH) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_WEST)
)
{
return true;
}
break;
}
case E_META_RAIL_CURVED_ZM_XP:
{
if (
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_NORTH) ||
IsNotConnected(a_ChunkInterface, a_Pos, BLOCK_FACE_EAST)
)
{
return true;
}
break;
}
}
return false;
}
static bool IsNotConnected(cChunkInterface & a_ChunkInterface, Vector3i a_Pos, eBlockFace a_BlockFace, char a_Pure = 0)
{
AddFaceDirection(a_Pos.x, a_Pos.y, a_Pos.z, a_BlockFace, false);
NIBBLETYPE Meta;
if (!IsBlockRail(a_ChunkInterface.GetBlock(a_Pos)))
{
if (!IsBlockRail(a_ChunkInterface.GetBlock(a_Pos + Vector3i(0, 1, 0))) || (a_Pure != E_PURE_UPDOWN))
{
if (!IsBlockRail(a_ChunkInterface.GetBlock(a_Pos - Vector3i(0, 1, 0))) || (a_Pure == E_PURE_NONE))
{
return true;
}
else
{
Meta = a_ChunkInterface.GetBlockMeta(a_Pos - Vector3i(0, 1, 0));
}
}
else
{
Meta = a_ChunkInterface.GetBlockMeta(a_Pos + Vector3i(0, 1, 0));
}
}
else
{
Meta = a_ChunkInterface.GetBlockMeta(a_Pos);
}
switch (a_BlockFace)
{
case BLOCK_FACE_NORTH:
{
if (
(Meta == E_META_RAIL_ZM_ZP) ||
(Meta == E_META_RAIL_ASCEND_ZM) ||
(Meta == E_META_RAIL_ASCEND_ZP) ||
(Meta == E_META_RAIL_CURVED_ZP_XP) ||
(Meta == E_META_RAIL_CURVED_ZP_XM)
)
{
return false;
}
break;
}
case BLOCK_FACE_SOUTH:
{
if (
(Meta == E_META_RAIL_ZM_ZP) ||
(Meta == E_META_RAIL_ASCEND_ZM) ||
(Meta == E_META_RAIL_ASCEND_ZP) ||
(Meta == E_META_RAIL_CURVED_ZM_XP) ||
(Meta == E_META_RAIL_CURVED_ZM_XM)
)
{
return false;
}
break;
}
case BLOCK_FACE_EAST:
{
if (
(Meta == E_META_RAIL_XM_XP) ||
(Meta == E_META_RAIL_ASCEND_XP) ||
(Meta == E_META_RAIL_ASCEND_XM) ||
(Meta == E_META_RAIL_CURVED_ZP_XM) ||
(Meta == E_META_RAIL_CURVED_ZM_XM)
)
{
return false;
}
break;
}
case BLOCK_FACE_WEST:
{
if (
(Meta == E_META_RAIL_XM_XP) ||
(Meta == E_META_RAIL_ASCEND_XP) ||
(Meta == E_META_RAIL_ASCEND_XM) ||
(Meta == E_META_RAIL_CURVED_ZP_XP) ||
(Meta == E_META_RAIL_CURVED_ZM_XP)
)
{
return false;
}
break;
}
case BLOCK_FACE_NONE:
case BLOCK_FACE_YM:
case BLOCK_FACE_YP:
{
break;
}
}
return true;
}
virtual void OnBroken(
cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface,
Vector3i a_BlockPos,
BLOCKTYPE a_OldBlockType, NIBBLETYPE a_OldBlockMeta,
const cEntity * a_Digger
) const override
{
Super::OnBroken(a_ChunkInterface, a_WorldInterface, a_BlockPos, a_OldBlockType, a_OldBlockMeta, a_Digger);
// Alert diagonal rails:
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 1, 1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i(-1, 1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, +1, 1), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, +1, -1), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 1, -1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i(-1, -1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, -1, 1), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, -1, -1), BLOCK_FACE_NONE);
}
virtual void OnNeighborChanged(cChunkInterface & a_ChunkInterface, Vector3i a_BlockPos, eBlockFace a_WhichNeighbor) const override
{
const auto Meta = a_ChunkInterface.GetBlockMeta(a_BlockPos);
const auto NewMeta = FindMeta(a_ChunkInterface, a_BlockPos, m_BlockType);
if ((Meta != NewMeta) && IsUnstable(a_ChunkInterface, a_BlockPos))
{
a_ChunkInterface.FastSetBlock(a_BlockPos, m_BlockType, (m_BlockType == E_BLOCK_RAIL) ? NewMeta : NewMeta | (Meta & 0x08));
}
Super::OnNeighborChanged(a_ChunkInterface, a_BlockPos, a_WhichNeighbor);
}
virtual void OnPlaced(
cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface,
Vector3i a_BlockPos,
BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta
) const override
{
Super::OnPlaced(a_ChunkInterface, a_WorldInterface, a_BlockPos, a_BlockType, a_BlockMeta);
// Alert diagonal rails:
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 1, 1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i(-1, 1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, +1, 1), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, +1, -1), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 1, -1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i(-1, -1, 0), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, -1, 1), BLOCK_FACE_NONE);
NeighborChanged(a_ChunkInterface, a_BlockPos + Vector3i( 0, -1, -1), BLOCK_FACE_NONE);
}
virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) const override
{
// Bit 0x08 is a flag when a_Meta is in the range 0x00--0x05 and 0x0A--0x0F.
// Bit 0x08 specifies direction when a_Meta is in the range 0x06-0x09.
if ((a_Meta < 0x06) || (a_Meta > 0x09))
{
// Save powered rail flag.
NIBBLETYPE OtherMeta = a_Meta & 0x08;
// Rotates according to table; 0x07 == 0111.
// Rails can either be flat (North / South) or Ascending (Asc. East)
switch (a_Meta & 0x07)
{
case 0x00: return 0x01 + OtherMeta; // North / South -> East / West
case 0x01: return 0x00 + OtherMeta; // East / West -> North / South
case 0x02: return 0x04 + OtherMeta; // Asc. East -> Asc. North
case 0x04: return 0x03 + OtherMeta; // Asc. North -> Asc. West
case 0x03: return 0x05 + OtherMeta; // Asc. West -> Asc. South
case 0x05: return 0x02 + OtherMeta; // Asc. South -> Asc. East
}
}
else
{
switch (a_Meta)
{
// Corner Directions
case 0x06: return 0x09; // Northwest Cnr. -> Southwest Cnr.
case 0x07: return 0x06; // Northeast Cnr. -> Northwest Cnr.
case 0x08: return 0x07; // Southeast Cnr. -> Northeast Cnr.
case 0x09: return 0x08; // Southwest Cnr. -> Southeast Cnr.
}
}
// To avoid a compiler warning;
return a_Meta;
}
virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) const override
{
// Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
if ((a_Meta < 0x06) || (a_Meta > 0x09))
{
// Save powered rail flag.
NIBBLETYPE OtherMeta = a_Meta & 0x08;
// Rotates according to table; 0x07 == 0111.
// Rails can either be flat (North / South) or Ascending (Asc. East)
switch (a_Meta & 0x07)
{
case 0x00: return 0x01 + OtherMeta; // North / South -> East / West
case 0x01: return 0x00 + OtherMeta; // East / West -> North / South
case 0x02: return 0x05 + OtherMeta; // Asc. East -> Asc. South
case 0x05: return 0x03 + OtherMeta; // Asc. South -> Asc. West
case 0x03: return 0x04 + OtherMeta; // Asc. West -> Asc. North
case 0x04: return 0x02 + OtherMeta; // Asc. North -> Asc. East
}
}
else
{
switch (a_Meta)
{
// Corner Directions
case 0x06: return 0x07; // Northwest Cnr. -> Northeast Cnr.
case 0x07: return 0x08; // Northeast Cnr. -> Southeast Cnr.
case 0x08: return 0x09; // Southeast Cnr. -> Southwest Cnr.
case 0x09: return 0x06; // Southwest Cnr. -> Northwest Cnr.
}
}
// To avoid a compiler warning;
return a_Meta;
}
virtual NIBBLETYPE MetaMirrorXY(NIBBLETYPE a_Meta) const override
{
// MirrorXY basically flips the ZP and ZM parts of the meta
if (m_BlockType == E_BLOCK_RAIL)
{
// Basic rails can have curves and thus their meta behaves differently from specialized rails:
switch (a_Meta)
{
case E_META_RAIL_ASCEND_XM: return E_META_RAIL_ASCEND_XM;
case E_META_RAIL_ASCEND_XP: return E_META_RAIL_ASCEND_XP;
case E_META_RAIL_ASCEND_ZM: return E_META_RAIL_ASCEND_ZP;
case E_META_RAIL_ASCEND_ZP: return E_META_RAIL_ASCEND_ZM;
case E_META_RAIL_CURVED_ZM_XM: return E_META_RAIL_CURVED_ZP_XM;
case E_META_RAIL_CURVED_ZM_XP: return E_META_RAIL_CURVED_ZP_XP;
case E_META_RAIL_CURVED_ZP_XM: return E_META_RAIL_CURVED_ZM_XM;
case E_META_RAIL_CURVED_ZP_XP: return E_META_RAIL_CURVED_ZM_XP;
case E_META_RAIL_XM_XP: return E_META_RAIL_XM_XP;
case E_META_RAIL_ZM_ZP: return E_META_RAIL_ZM_ZP;
}
}
else
{
// Specialized rails don't have curves, instead they use bit 0x08 as a flag
NIBBLETYPE flag = a_Meta & 0x08;
switch (a_Meta & 0x07)
{
case E_META_RAIL_ASCEND_XM: return flag | E_META_RAIL_ASCEND_XM;
case E_META_RAIL_ASCEND_XP: return flag | E_META_RAIL_ASCEND_XP;
case E_META_RAIL_ASCEND_ZM: return flag | E_META_RAIL_ASCEND_ZP;
case E_META_RAIL_ASCEND_ZP: return flag | E_META_RAIL_ASCEND_ZM;
case E_META_RAIL_XM_XP: return flag | E_META_RAIL_XM_XP;
case E_META_RAIL_ZM_ZP: return flag | E_META_RAIL_ZM_ZP;
}
}
ASSERT(!"Unknown rail meta");
return a_Meta;
}
virtual NIBBLETYPE MetaMirrorYZ(NIBBLETYPE a_Meta) const override
{
// MirrorYZ basically flips the XP and XM parts of the meta
if (m_BlockType == E_BLOCK_RAIL)
{
// Basic rails can have curves and thus their meta behaves differently from specialized rails:
switch (a_Meta)
{
case E_META_RAIL_ASCEND_XM: return E_META_RAIL_ASCEND_XP;
case E_META_RAIL_ASCEND_XP: return E_META_RAIL_ASCEND_XM;
case E_META_RAIL_ASCEND_ZM: return E_META_RAIL_ASCEND_ZM;
case E_META_RAIL_ASCEND_ZP: return E_META_RAIL_ASCEND_ZP;
case E_META_RAIL_CURVED_ZM_XM: return E_META_RAIL_CURVED_ZM_XP;
case E_META_RAIL_CURVED_ZM_XP: return E_META_RAIL_CURVED_ZM_XM;
case E_META_RAIL_CURVED_ZP_XM: return E_META_RAIL_CURVED_ZP_XP;
case E_META_RAIL_CURVED_ZP_XP: return E_META_RAIL_CURVED_ZP_XM;
case E_META_RAIL_XM_XP: return E_META_RAIL_XM_XP;
case E_META_RAIL_ZM_ZP: return E_META_RAIL_ZM_ZP;
}
}
else
{
// Specialized rails don't have curves, instead they use bit 0x08 as a flag
NIBBLETYPE flag = a_Meta & 0x08;
switch (a_Meta & 0x07)
{
case E_META_RAIL_ASCEND_XM: return flag | E_META_RAIL_ASCEND_XP;
case E_META_RAIL_ASCEND_XP: return flag | E_META_RAIL_ASCEND_XM;
case E_META_RAIL_ASCEND_ZM: return flag | E_META_RAIL_ASCEND_ZM;
case E_META_RAIL_ASCEND_ZP: return flag | E_META_RAIL_ASCEND_ZP;
case E_META_RAIL_XM_XP: return flag | E_META_RAIL_XM_XP;
case E_META_RAIL_ZM_ZP: return flag | E_META_RAIL_ZM_ZP;
}
}
ASSERT(!"Unknown rail meta");
return a_Meta;
}
virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
{
UNUSED(a_Meta);
return 0;
}
} ;
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