void cBlockArea::MirrorYZ(void)
{
if (!HasBlockTypes())
{
LOGWARNING("cBlockArea: Cannot mirror meta without blocktypes!");
return;
}
if (!HasBlockMetas())
{
// There are no blockmetas to mirror, just use the NoMeta function
MirrorYZNoMeta();
return;
}
// We are guaranteed that both blocktypes and blockmetas exist; mirror both at the same time:
int HalfX = m_SizeX / 2;
int MaxX = m_SizeX - 1;
for (int y = 0; y < m_SizeY; y++)
{
for (int z = 0; z < m_SizeZ; z++)
{
for (int x = 0; x < HalfX; x++)
{
int Idx1 = MakeIndex(x, y, z);
int Idx2 = MakeIndex(MaxX - x, y, z);
std::swap(m_BlockTypes[Idx1], m_BlockTypes[Idx2]);
NIBBLETYPE Meta1 = BlockHandler(m_BlockTypes[Idx2])->MetaMirrorYZ(m_BlockMetas[Idx1]);
NIBBLETYPE Meta2 = BlockHandler(m_BlockTypes[Idx1])->MetaMirrorYZ(m_BlockMetas[Idx2]);
m_BlockMetas[Idx1] = Meta2;
m_BlockMetas[Idx2] = Meta1;
} // for x
} // for z
} // for y
}
void cBlockPistonHandler::ExtendPiston(int pistx, int pisty, int pistz)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
m_World->GetBlockTypeMeta(pistx, pisty, pistz, pistonBlock, pistonMeta);
if (IsExtended(pistonMeta))
{
// Already extended, bail out
return;
}
int dist = FirstPassthroughBlock(pistx, pisty, pistz, pistonMeta);
if (dist < 0)
{
// FirstPassthroughBlock says piston can't push anything, bail out
return;
}
m_World->BroadcastBlockAction(pistx, pisty, pistz, 0, pistonMeta, pistonBlock);
m_World->BroadcastSoundEffect("tile.piston.out", pistx * 8, pisty * 8, pistz * 8, 0.5f, 0.7f);
// Drop the breakable block in the line, if appropriate:
AddPistonDir(pistx, pisty, pistz, pistonMeta, dist + 1); // "pist" now at the breakable / empty block
BLOCKTYPE currBlock;
NIBBLETYPE currMeta;
m_World->GetBlockTypeMeta(pistx, pisty, pistz, currBlock, currMeta);
if (currBlock != E_BLOCK_AIR)
{
cBlockHandler * Handler = BlockHandler(currBlock);
if (Handler->DoesDropOnUnsuitable())
{
cChunkInterface ChunkInterface(m_World->GetChunkMap());
cBlockInServerPluginInterface PluginInterface(*m_World);
Handler->DropBlock(ChunkInterface, *m_World, PluginInterface, NULL, pistx, pisty, pistz);
}
}
// Push blocks, from the furthest to the nearest:
int oldx = pistx, oldy = pisty, oldz = pistz;
NIBBLETYPE currBlockMeta;
for (int i = dist + 1; i > 1; i--)
{
AddPistonDir(pistx, pisty, pistz, pistonMeta, -1);
m_World->GetBlockTypeMeta(pistx, pisty, pistz, currBlock, currBlockMeta);
m_World->QueueSetBlock( oldx, oldy, oldz, currBlock, currBlockMeta, PISTON_TICK_DELAY);
oldx = pistx;
oldy = pisty;
oldz = pistz;
}
int extx = pistx;
int exty = pisty;
int extz = pistz;
AddPistonDir(pistx, pisty, pistz, pistonMeta, -1);
// "pist" now at piston body, "ext" at future extension
m_World->SetBlock(pistx, pisty, pistz, pistonBlock, pistonMeta | 0x8);
m_World->QueueSetBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, pistonMeta | (IsSticky(pistonBlock) ? 8 : 0), PISTON_TICK_DELAY);
}
void cBlockPistonHandler::PushBlocks(
const Vector3iSet & a_BlocksToPush,
cWorld * a_World, const Vector3i & a_PushDir
)
{
// Sort blocks to move the blocks first, which are farest away from the piston
// This prevents the overwriting of existing blocks
std::vector<Vector3i> sortedBlocks(a_BlocksToPush.begin(), a_BlocksToPush.end());
std::sort(sortedBlocks.begin(), sortedBlocks.end(), [a_PushDir](const Vector3i & a, const Vector3i & b)
{
return a.Dot(a_PushDir) > b.Dot(a_PushDir);
});
// Move every block
BLOCKTYPE moveBlock;
NIBBLETYPE moveMeta;
for (auto & moveBlockPos : sortedBlocks)
{
a_World->GetBlockTypeMeta(moveBlockPos.x, moveBlockPos.y, moveBlockPos.z, moveBlock, moveMeta);
a_World->SetBlock(moveBlockPos.x, moveBlockPos.y, moveBlockPos.z, E_BLOCK_AIR, 0);
moveBlockPos += a_PushDir;
if (cBlockInfo::IsPistonBreakable(moveBlock))
{
// Block is breakable, drop it
cBlockHandler * Handler = BlockHandler(moveBlock);
if (Handler->DoesDropOnUnsuitable())
{
cChunkInterface ChunkInterface(a_World->GetChunkMap());
cBlockInServerPluginInterface PluginInterface(*a_World);
Handler->DropBlock(ChunkInterface, *a_World, PluginInterface, nullptr,
moveBlockPos.x, moveBlockPos.y, moveBlockPos.z
);
}
} else
{
// Not breakable, just move it
a_World->SetBlock(moveBlockPos.x, moveBlockPos.y, moveBlockPos.z, moveBlock, moveMeta);
}
}
}
void cBlockArea::RotateCW(void)
{
if (!HasBlockTypes())
{
LOGWARNING("cBlockArea: Cannot rotate blockmeta without blocktypes!");
return;
}
if (!HasBlockMetas())
{
// There are no blockmetas to rotate, just use the NoMeta function
RotateCWNoMeta();
return;
}
// We are guaranteed that both blocktypes and blockmetas exist; rotate both at the same time:
BLOCKTYPE * NewTypes = new BLOCKTYPE[m_SizeX * m_SizeY * m_SizeZ];
NIBBLETYPE * NewMetas = new NIBBLETYPE[m_SizeX * m_SizeY * m_SizeZ];
for (int x = 0; x < m_SizeX; x++)
{
int NewZ = x;
for (int z = 0; z < m_SizeZ; z++)
{
int NewX = m_SizeZ - z - 1;
for (int y = 0; y < m_SizeY; y++)
{
int NewIdx = NewX + NewZ * m_SizeX + y * m_SizeX * m_SizeZ;
int OldIdx = MakeIndex(x, y, z);
NewTypes[NewIdx] = m_BlockTypes[OldIdx];
NewMetas[NewIdx] = BlockHandler(m_BlockTypes[OldIdx])->MetaRotateCW(m_BlockMetas[OldIdx]);
} // for y
} // for z
} // for x
std::swap(m_BlockTypes, NewTypes);
std::swap(m_BlockMetas, NewMetas);
delete[] NewTypes;
delete[] NewMetas;
std::swap(m_SizeX, m_SizeZ);
}
bool cItemHandler::GetPlacementBlockTypeMeta(
cWorld * a_World, cPlayer * a_Player,
int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
int a_CursorX, int a_CursorY, int a_CursorZ,
BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
)
{
ASSERT(m_ItemType < 256); // Items with IDs above 255 should all be handled by specific handlers
if (m_ItemType >= 256)
{
LOGERROR("%s: Item %d is not eligible for direct block placement!", __FUNCTION__, m_ItemType);
return false;
}
cBlockHandler * BlockH = BlockHandler((BLOCKTYPE)m_ItemType);
cChunkInterface ChunkInterface(a_World->GetChunkMap());
return BlockH->GetPlacementBlockTypeMeta(
ChunkInterface, a_Player,
a_BlockX, a_BlockY, a_BlockZ, a_BlockFace,
a_CursorX, a_CursorY, a_CursorZ,
a_BlockType, a_BlockMeta
);
}
int
WaitForSomething(int *pClientsReady)
{
struct timeval *wt,
waittime;
fd_set clientsReadable;
fd_set clientsWriteable;
long curclient;
int selecterr;
long current_time = 0;
long timeout;
int nready,
i;
while (1) {
/* handle the work Q */
if (workQueue)
ProcessWorkQueue();
if (XFD_ANYSET(&ClientsWithInput)) {
XFD_COPYSET(&ClientsWithInput, &clientsReadable);
break;
}
/*
* deal with KeepAlive timeouts. if this seems to costly, SIGALRM
* could be used, but its more dangerous since some it could catch us
* at an inopportune moment (like inside un-reentrant malloc()).
*/
current_time = GetTimeInMillis();
timeout = current_time - LastReapTime;
if (timeout > ReapClientTime) {
ReapAnyOldClients();
LastReapTime = current_time;
timeout = ReapClientTime;
}
timeout = ReapClientTime - timeout;
waittime.tv_sec = timeout / MILLI_PER_SECOND;
waittime.tv_usec = (timeout % MILLI_PER_SECOND) *
(1000000 / MILLI_PER_SECOND);
wt = &waittime;
XFD_COPYSET(&AllSockets, &LastSelectMask);
BlockHandler(&wt, (pointer) &LastSelectMask);
if (NewOutputPending)
FlushAllOutput();
if (AnyClientsWriteBlocked) {
XFD_COPYSET(&ClientsWriteBlocked, &clientsWriteable);
i = Select(MAXSOCKS, &LastSelectMask, &clientsWriteable, NULL, wt);
} else {
i = Select(MAXSOCKS, &LastSelectMask, NULL, NULL, wt);
}
selecterr = errno;
WakeupHandler(i, (unsigned long *) &LastSelectMask);
if (i <= 0) { /* error or timeout */
FD_ZERO(&clientsWriteable);
if (i < 0) {
if (selecterr == EBADF) { /* somebody disconnected */
CheckConnections();
} else if (selecterr != EINTR) {
ErrorF("WaitForSomething: select(): errno %d\n", selecterr);
} else {
/*
* must have been broken by a signal. go deal with any
* exception flags
*/
return 0;
}
} else { /* must have timed out */
ReapAnyOldClients();
LastReapTime = GetTimeInMillis();
}
} else {
if (AnyClientsWriteBlocked && XFD_ANYSET(&clientsWriteable)) {
NewOutputPending = TRUE;
XFD_ORSET(&OutputPending, &clientsWriteable, &OutputPending);
XFD_UNSET(&ClientsWriteBlocked, &clientsWriteable);
if (!XFD_ANYSET(&ClientsWriteBlocked))
AnyClientsWriteBlocked = FALSE;
}
XFD_ANDSET(&clientsReadable, &LastSelectMask, &AllClients);
if (LastSelectMask.fds_bits[0] & WellKnownConnections.fds_bits[0])
MakeNewConnections();
if (XFD_ANYSET(&clientsReadable))
break;
}
}
nready = 0;
if (XFD_ANYSET(&clientsReadable)) {
ClientPtr client;
int conn;
if (current_time) /* may not have been set */
current_time = GetTimeInMillis();
for (i = 0; i < howmany(XFD_SETSIZE, NFDBITS); i++) {
while (clientsReadable.fds_bits[i]) {
curclient = xfd_ffs(clientsReadable.fds_bits[i]) - 1;
conn = ConnectionTranslation[curclient + (i * (sizeof(fd_mask) * 8))];
clientsReadable.fds_bits[i] &= ~(((fd_mask)1L) << curclient);
client = clients[conn];
if (!client)
continue;
pClientsReady[nready++] = conn;
client->last_request_time = current_time;
client->clientGone = CLIENT_ALIVE;
if (nready >= MaxClients) {
/* pClientsReady buffer has no more room, get the
rest on the next time through select() loop */
return nready;
}
}
}
}
return nready;
}
void cFloodyFluidSimulator::SpreadToNeighbor(cChunk * a_NearChunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_NewMeta)
{
ASSERT(a_NewMeta <= 8); // Invalid meta values
ASSERT(a_NewMeta > 0); // Source blocks aren't spread
a_NearChunk = a_NearChunk->GetRelNeighborChunkAdjustCoords(a_RelX, a_RelZ);
if ((a_NearChunk == NULL) || (!a_NearChunk->IsValid()))
{
// Chunk not available
return;
}
const int BlockX = a_NearChunk->GetPosX() * cChunkDef::Width + a_RelX;
const int BlockZ = a_NearChunk->GetPosZ() * cChunkDef::Width + a_RelZ;
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
a_NearChunk->GetBlockTypeMeta(a_RelX, a_RelY, a_RelZ, BlockType, BlockMeta);
if (IsAllowedBlock(BlockType))
{
if ((BlockMeta == a_NewMeta) || IsHigherMeta(BlockMeta, a_NewMeta))
{
// Don't spread there, there's already a higher or same level there
return;
}
}
// Check water - lava interaction:
if (m_FluidBlock == E_BLOCK_LAVA)
{
if (IsBlockWater(BlockType))
{
// Lava flowing into water, change to stone / cobblestone based on direction:
BLOCKTYPE NewBlock = (a_NewMeta == 8) ? E_BLOCK_STONE : E_BLOCK_COBBLESTONE;
FLOG(" Lava flowing into water, turning water at rel {%d, %d, %d} into stone",
a_RelX, a_RelY, a_RelZ,
ItemTypeToString(NewBlock).c_str()
);
a_NearChunk->SetBlock(a_RelX, a_RelY, a_RelZ, NewBlock, 0);
a_NearChunk->BroadcastSoundEffect("random.fizz", BlockX * 8, a_RelY * 8, BlockZ * 8, 0.5f, 1.5f);
return;
}
}
else if (m_FluidBlock == E_BLOCK_WATER)
{
if (IsBlockLava(BlockType))
{
// Water flowing into lava, change to cobblestone / obsidian based on dest block:
BLOCKTYPE NewBlock = (BlockMeta == 0) ? E_BLOCK_OBSIDIAN : E_BLOCK_COBBLESTONE;
FLOG(" Water flowing into lava, turning lava at rel {%d, %d, %d} into %s",
a_RelX, a_RelY, a_RelZ, ItemTypeToString(NewBlock).c_str()
);
a_NearChunk->SetBlock(a_RelX, a_RelY, a_RelZ, NewBlock, 0);
a_NearChunk->BroadcastSoundEffect("random.fizz", BlockX * 8, a_RelY * 8, BlockZ * 8, 0.5f, 1.5f);
return;
}
}
else
{
ASSERT(!"Unknown fluid!");
}
if (!IsPassableForFluid(BlockType))
{
// Can't spread there
return;
}
// Wash away the block there, if possible:
if (CanWashAway(BlockType))
{
cBlockHandler * Handler = BlockHandler(BlockType);
if (Handler->DoesDropOnUnsuitable())
{
cChunkInterface ChunkInterface(m_World.GetChunkMap());
cBlockInServerPluginInterface PluginInterface(m_World);
Handler->DropBlock(
ChunkInterface,
m_World,
PluginInterface,
NULL,
BlockX,
a_RelY,
BlockZ
);
}
} // if (CanWashAway)
// Spread:
FLOG(" Spreading to {%d, %d, %d} with meta %d", BlockX, a_RelY, BlockZ, a_NewMeta);
a_NearChunk->SetBlock(a_RelX, a_RelY, a_RelZ, m_FluidBlock, a_NewMeta);
m_World.GetSimulatorManager()->WakeUp(BlockX, a_RelY, BlockZ, a_NearChunk);
HardenBlock(a_NearChunk, a_RelX, a_RelY, a_RelZ, m_FluidBlock, a_NewMeta);
}
void cBlockPistonHandler::ExtendPiston(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta);
if (IsExtended(pistonMeta))
{
// Already extended, bail out
return;
}
int dist = FirstPassthroughBlock(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, a_World);
if (dist < 0)
{
// FirstPassthroughBlock says piston can't push anything, bail out
return;
}
a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 0, pistonMeta, pistonBlock);
a_World->BroadcastSoundEffect("tile.piston.out", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 0.5f, 0.7f);
// Drop the breakable block in the line, if appropriate:
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, dist + 1); // "a_Block" now at the breakable / empty block
BLOCKTYPE currBlock;
NIBBLETYPE currMeta;
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, currBlock, currMeta);
if (currBlock != E_BLOCK_AIR)
{
cBlockHandler * Handler = BlockHandler(currBlock);
if (Handler->DoesDropOnUnsuitable())
{
cChunkInterface ChunkInterface(a_World->GetChunkMap());
cBlockInServerPluginInterface PluginInterface(*a_World);
Handler->DropBlock(ChunkInterface, *a_World, PluginInterface, NULL, a_BlockX, a_BlockY, a_BlockZ);
}
}
// Push blocks, from the furthest to the nearest:
int oldx = a_BlockX, oldy = a_BlockY, oldz = a_BlockZ;
NIBBLETYPE currBlockMeta;
std::vector<Vector3i> ScheduledBlocks;
ScheduledBlocks.reserve(PISTON_MAX_PUSH_DISTANCE);
for (int i = dist + 1; i > 1; i--)
{
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, currBlock, currBlockMeta);
a_World->SetBlock(oldx, oldy, oldz, currBlock, currBlockMeta, false);
ScheduledBlocks.push_back(Vector3i(oldx, oldy, oldz));
oldx = a_BlockX;
oldy = a_BlockY;
oldz = a_BlockZ;
}
int extx = a_BlockX;
int exty = a_BlockY;
int extz = a_BlockZ;
ScheduledBlocks.push_back(Vector3i(extx, exty, extz));
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
// "a_Block" now at piston body, "ext" at future extension
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta | 0x8);
a_World->SetBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, pistonMeta | (IsSticky(pistonBlock) ? 8 : 0), false);
a_World->ScheduleTask(PISTON_TICK_DELAY, new cWorld::cTaskSendBlockToAllPlayers(ScheduledBlocks));
}
bool cItemHandler::OnPlayerPlace(
cWorld & a_World, cPlayer & a_Player, const cItem & a_EquippedItem,
int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace,
int a_CursorX, int a_CursorY, int a_CursorZ
)
{
if (a_BlockFace < 0)
{
// Clicked in air
return false;
}
if ((a_BlockY < 0) || (a_BlockY >= cChunkDef::Height))
{
// The clicked block is outside the world, ignore this call altogether (#128)
return false;
}
BLOCKTYPE ClickedBlock;
NIBBLETYPE ClickedBlockMeta;
a_World.GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, ClickedBlock, ClickedBlockMeta);
// Check if the block ignores build collision (water, grass etc.):
if (
BlockHandler(ClickedBlock)->DoesIgnoreBuildCollision() ||
BlockHandler(ClickedBlock)->DoesIgnoreBuildCollision(&a_Player, ClickedBlockMeta)
)
{
cChunkInterface ChunkInterface(a_World.GetChunkMap());
BlockHandler(ClickedBlock)->OnDestroyedByPlayer(ChunkInterface, a_World, &a_Player, a_BlockX, a_BlockY, a_BlockZ);
}
else
{
AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, a_BlockFace);
if ((a_BlockY < 0) || (a_BlockY >= cChunkDef::Height))
{
// The block is being placed outside the world, ignore this packet altogether (#128)
return false;
}
NIBBLETYPE PlaceMeta;
BLOCKTYPE PlaceBlock;
a_World.GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, PlaceBlock, PlaceMeta);
// Clicked on side of block, make sure that placement won't be cancelled if there is a slab able to be double slabbed.
// No need to do combinability (dblslab) checks, client will do that here.
if (
!BlockHandler(PlaceBlock)->DoesIgnoreBuildCollision() &&
!BlockHandler(PlaceBlock)->DoesIgnoreBuildCollision(&a_Player, PlaceMeta)
)
{
// Tried to place a block *into* another?
// Happens when you place a block aiming at side of block with a torch on it or stem beside it
return false;
}
}
BLOCKTYPE BlockType;
NIBBLETYPE BlockMeta;
if (!GetPlacementBlockTypeMeta(&a_World, &a_Player, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_CursorX, a_CursorY, a_CursorZ, BlockType, BlockMeta))
{
// Handler refused the placement, send that information back to the client:
a_World.SendBlockTo(a_BlockX, a_BlockY, a_BlockZ, &a_Player);
a_Player.GetInventory().SendEquippedSlot();
return false;
}
if (!a_Player.PlaceBlock(a_BlockX, a_BlockY, a_BlockZ, BlockType, BlockMeta))
{
// The placement failed, the block has already been re-sent, re-send inventory:
a_Player.GetInventory().SendEquippedSlot();
return false;
}
AString PlaceSound = cBlockInfo::GetPlaceSound(BlockType);
float Volume = 1.0f, Pitch = 0.8f;
if (PlaceSound == "dig.metal")
{
Pitch = 1.2f;
PlaceSound = "dig.stone";
}
else if (PlaceSound == "random.anvil_land")
{
Volume = 0.65f;
}
a_World.BroadcastSoundEffect(PlaceSound, a_BlockX + 0.5, a_BlockY + 0.5, a_BlockZ + 0.5, Volume, Pitch);
// Remove the "placed" item:
if (a_Player.IsGameModeSurvival())
{
a_Player.GetInventory().RemoveOneEquippedItem();
}
return true;
}
bool cMap::UpdatePixel(unsigned int a_X, unsigned int a_Z)
{
int BlockX = m_CenterX + static_cast<int>((a_X - m_Width / 2) * GetPixelWidth());
int BlockZ = m_CenterZ + static_cast<int>((a_Z - m_Height / 2) * GetPixelWidth());
int ChunkX, ChunkZ;
cChunkDef::BlockToChunk(BlockX, BlockZ, ChunkX, ChunkZ);
int RelX = BlockX - (ChunkX * cChunkDef::Width);
int RelZ = BlockZ - (ChunkZ * cChunkDef::Width);
ASSERT(m_World != nullptr);
ColorID PixelData;
m_World->DoWithChunk(ChunkX, ChunkZ, [&](cChunk & a_Chunk)
{
if (!a_Chunk.IsValid())
{
return false;
}
if (GetDimension() == dimNether)
{
// TODO 2014-02-22 xdot: Nether maps
return false;
}
static const std::array<unsigned char, 4> BrightnessID = { { 3, 0, 1, 2 } }; // Darkest to lightest
BLOCKTYPE TargetBlock;
NIBBLETYPE TargetMeta;
auto Height = a_Chunk.GetHeight(RelX, RelZ);
auto ChunkHeight = cChunkDef::Height;
a_Chunk.GetBlockTypeMeta(RelX, Height, RelZ, TargetBlock, TargetMeta);
auto ColourID = BlockHandler(TargetBlock)->GetMapBaseColourID(TargetMeta);
if (IsBlockWater(TargetBlock))
{
ChunkHeight /= 4;
while (((--Height) != -1) && IsBlockWater(a_Chunk.GetBlock(RelX, Height, RelZ)))
{
continue;
}
}
else if (ColourID == 0)
{
while (((--Height) != -1) && ((ColourID = BlockHandler(a_Chunk.GetBlock(RelX, Height, RelZ))->GetMapBaseColourID(a_Chunk.GetMeta(RelX, Height, RelZ))) == 0))
{
continue;
}
}
// Multiply base color ID by 4 and add brightness ID
const int BrightnessIDSize = static_cast<int>(BrightnessID.size());
PixelData = ColourID * 4 + BrightnessID[static_cast<size_t>(Clamp<int>((BrightnessIDSize * Height) / ChunkHeight, 0, BrightnessIDSize - 1))];
return false;
}
);
SetPixel(a_X, a_Z, PixelData);
return true;
}
void cBlockPistonHandler::ExtendPiston(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta);
if (IsExtended(pistonMeta))
{
// Already extended, bail out
return;
}
int dist = FirstPassthroughBlock(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, a_World);
if (dist < 0)
{
// FirstPassthroughBlock says piston can't push anything, bail out
return;
}
a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 0, pistonMeta, pistonBlock);
a_World->BroadcastSoundEffect("tile.piston.out", static_cast<double>(a_BlockX), static_cast<double>(a_BlockY), static_cast<double>(a_BlockZ), 0.5f, 0.7f);
// Drop the breakable block in the line, if appropriate:
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, dist + 1); // "a_Block" now at the breakable / empty block
BLOCKTYPE currBlock;
NIBBLETYPE currMeta;
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, currBlock, currMeta);
if (currBlock != E_BLOCK_AIR)
{
cBlockHandler * Handler = BlockHandler(currBlock);
if (Handler->DoesDropOnUnsuitable())
{
cChunkInterface ChunkInterface(a_World->GetChunkMap());
cBlockInServerPluginInterface PluginInterface(*a_World);
Handler->DropBlock(ChunkInterface, *a_World, PluginInterface, nullptr, a_BlockX, a_BlockY, a_BlockZ);
}
}
// Push blocks, from the furthest to the nearest:
int oldx = a_BlockX, oldy = a_BlockY, oldz = a_BlockZ;
NIBBLETYPE currBlockMeta;
for (int i = dist + 1; i > 1; i--)
{
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, currBlock, currBlockMeta);
a_World->SetBlock(oldx, oldy, oldz, currBlock, currBlockMeta);
oldx = a_BlockX;
oldy = a_BlockY;
oldz = a_BlockZ;
}
int extx = a_BlockX;
int exty = a_BlockY;
int extz = a_BlockZ;
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
// "a_Block" now at piston body, "ext" at future extension
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta | 0x8);
a_World->SetBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, pistonMeta | (IsSticky(pistonBlock) ? 8 : 0));
}