void Choice::Draw(UIContext &dc) {
if (!IsSticky()) {
ClickableItem::Draw(dc);
} else {
Style style = dc.theme->itemStyle;
if (down_) {
style = dc.theme->itemDownStyle;
}
if (HasFocus()) {
style = dc.theme->itemFocusedStyle;
}
dc.FillRect(style.background, bounds_);
}
Style style = dc.theme->itemStyle;
if (!IsEnabled())
style = dc.theme->itemDisabledStyle;
if (atlasImage_ != -1) {
dc.Draw()->DrawImage(atlasImage_, bounds_.centerX(), bounds_.centerY(), 1.0f, style.fgColor, ALIGN_CENTER);
} else {
int paddingX = 12;
dc.SetFontStyle(dc.theme->uiFont);
dc.DrawText(text_.c_str(), bounds_.x + paddingX, bounds_.centerY(), style.fgColor, ALIGN_VCENTER);
}
if (selected_) {
dc.Draw()->DrawImage(dc.theme->checkOn, bounds_.x2() - 40, bounds_.centerY(), 1.0f, style.fgColor, ALIGN_CENTER);
}
}
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::ExtendPiston(Vector3i a_BlockPos, cWorld * a_World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
a_World->GetBlockTypeMeta(a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, pistonBlock, pistonMeta);
if (IsExtended(pistonMeta))
{
// Already extended, bail out
return;
}
Vector3i pushDir = MetadataToOffset(pistonMeta);
Vector3iSet blocksPushed;
if (!CanPushBlock(a_BlockPos + pushDir, a_World, true, blocksPushed, pushDir))
{
// Can't push anything, bail out
return;
}
a_World->BroadcastBlockAction(a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, 0, pistonMeta, pistonBlock);
a_World->BroadcastSoundEffect("tile.piston.out", a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, 0.5f, 0.7f);
PushBlocks(blocksPushed, a_World, pushDir);
// Set the extension and the piston base correctly
Vector3i extensionPos = a_BlockPos + pushDir;
a_World->SetBlock(a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, pistonBlock, pistonMeta | 0x8);
a_World->SetBlock(
extensionPos.x, extensionPos.y, extensionPos.z,
E_BLOCK_PISTON_EXTENSION, pistonMeta | (IsSticky(pistonBlock) ? 8 : 0)
);
}
void cBlockPistonHandler::RetractPiston(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 retracted, bail out
return;
}
// Check the extension:
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1);
if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_PISTON_EXTENSION)
{
LOGD("%s: Piston without an extension - still extending, or just in an invalid state?", __FUNCTION__);
return;
}
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta & ~(8));
a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 1, pistonMeta & ~(8), pistonBlock);
a_World->BroadcastSoundEffect("tile.piston.in", (double)a_BlockX, (double)a_BlockY, (double)a_BlockZ, 0.5f, 0.7f);
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1);
// Retract the extension, pull block if appropriate
if (IsSticky(pistonBlock))
{
int tempx = a_BlockX, tempy = a_BlockY, tempz = a_BlockZ;
AddPistonDir(tempx, tempy, tempz, pistonMeta, 1);
BLOCKTYPE tempBlock;
NIBBLETYPE tempMeta;
a_World->GetBlockTypeMeta(tempx, tempy, tempz, tempBlock, tempMeta);
if (CanPull(tempBlock, tempMeta))
{
// Pull the block
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, tempBlock, tempMeta, false);
a_World->SetBlock(tempx, tempy, tempz, E_BLOCK_AIR, 0, false);
std::vector<Vector3i> ScheduledBlocks;
ScheduledBlocks.push_back(Vector3i(a_BlockX, a_BlockY, a_BlockZ));
ScheduledBlocks.push_back(Vector3i(tempx, tempy, tempz));
a_World->ScheduleTask(PISTON_TICK_DELAY + 1, new cWorld::cTaskSendBlockToAllPlayers(ScheduledBlocks));
return;
}
}
// Retract without pulling
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_AIR, 0, false);
std::vector<Vector3i> ScheduledBlocks;
ScheduledBlocks.push_back(Vector3i(a_BlockX, a_BlockY, a_BlockZ));
a_World->ScheduleTask(PISTON_TICK_DELAY + 1, new cWorld::cTaskSendBlockToAllPlayers(ScheduledBlocks));
}
void cPiston::RetractPiston(int pistx, int pisty, int pistz)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
m_World->GetBlockTypeMeta(pistx, pisty, pistz, pistonBlock, pistonMeta);
if (!IsExtended(pistonMeta))
{
// Already retracted, bail out
return;
}
// Check the extension:
AddDir(pistx, pisty, pistz, pistonMeta, 1);
if (m_World->GetBlock(pistx, pisty, pistz) != E_BLOCK_PISTON_EXTENSION)
{
LOGD("%s: Piston without an extension - still extending, or just in an invalid state?", __FUNCTION__);
return;
}
AddDir(pistx, pisty, pistz, pistonMeta, -1);
m_World->SetBlock(pistx, pisty, pistz, pistonBlock, pistonMeta & ~(8));
m_World->BroadcastBlockAction(pistx, pisty, pistz, 1, pistonMeta & ~(8), pistonBlock);
m_World->BroadcastSoundEffect("tile.piston.in", pistx * 8, pisty * 8, pistz * 8, 0.5f, 0.7f);
AddDir(pistx, pisty, pistz, pistonMeta, 1);
// Retract the extension, pull block if appropriate
if (IsSticky(pistonBlock))
{
int tempx = pistx, tempy = pisty, tempz = pistz;
AddDir(tempx, tempy, tempz, pistonMeta, 1);
BLOCKTYPE tempBlock;
NIBBLETYPE tempMeta;
m_World->GetBlockTypeMeta(tempx, tempy, tempz, tempBlock, tempMeta);
if (CanPull(tempBlock, tempMeta))
{
// Pull the block
m_World->QueueSetBlock(pistx, pisty, pistz, tempBlock, tempMeta, PISTON_TICK_DELAY);
m_World->QueueSetBlock(tempx, tempy, tempz, E_BLOCK_AIR, 0, PISTON_TICK_DELAY);
}
else
{
// Retract without pulling
m_World->QueueSetBlock(pistx, pisty, pistz, E_BLOCK_AIR, 0, PISTON_TICK_DELAY);
}
}
else
{
m_World->QueueSetBlock(pistx, pisty, pistz, E_BLOCK_AIR, 0, PISTON_TICK_DELAY);
}
}
void RegexPattern::Print(DebugWriter* w)
{
w->Print(_u("/"));
Js::InternalString str = GetSource();
if (str.GetLength() == 0)
w->Print(_u("(?:)"));
else
{
for (charcount_t i = 0; i < str.GetLength(); ++i)
{
const char16 c = str.GetBuffer()[i];
switch(c)
{
case _u('/'):
w->Print(_u("\\%lc"), c);
break;
case _u('\n'):
case _u('\r'):
case _u('\x2028'):
case _u('\x2029'):
w->PrintEscapedChar(c);
break;
case _u('\\'):
Assert(i + 1 < str.GetLength()); // cannot end in a '\'
w->Print(_u("\\%lc"), str.GetBuffer()[++i]);
break;
default:
w->PrintEscapedChar(c);
break;
}
}
}
w->Print(_u("/"));
if (IsIgnoreCase())
w->Print(_u("i"));
if (IsGlobal())
w->Print(_u("g"));
if (IsMultiline())
w->Print(_u("m"));
if (IsUnicode())
w->Print(_u("u"));
if (IsSticky())
w->Print(_u("y"));
w->Print(_u(" /* "));
w->Print(_u(", "));
w->Print(isLiteral ? _u("literal") : _u("dynamic"));
w->Print(_u(" */"));
}
void Choice::Draw(UIContext &dc) {
if (!IsSticky()) {
ClickableItem::Draw(dc);
} else {
Style style = dc.theme->itemStyle;
if (highlighted_) {
style = dc.theme->itemHighlightedStyle;
}
if (down_) {
style = dc.theme->itemDownStyle;
}
if (HasFocus()) {
style = dc.theme->itemFocusedStyle;
}
dc.FillRect(style.background, bounds_);
}
Style style = dc.theme->itemStyle;
if (!IsEnabled()) {
style = dc.theme->itemDisabledStyle;
}
if (atlasImage_ != -1) {
dc.Draw()->DrawImage(atlasImage_, bounds_.centerX(), bounds_.centerY(), 1.0f, style.fgColor, ALIGN_CENTER);
} else {
dc.SetFontStyle(dc.theme->uiFont);
const int paddingX = 12;
const float availWidth = bounds_.w - paddingX * 2 - textPadding_.horiz();
float scale = CalculateTextScale(dc, availWidth);
dc.SetFontScale(scale, scale);
if (centered_) {
dc.DrawTextRect(text_.c_str(), bounds_, style.fgColor, ALIGN_CENTER | FLAG_WRAP_TEXT);
} else {
if (iconImage_ != -1) {
dc.Draw()->DrawImage(iconImage_, bounds_.x2() - 32 - paddingX, bounds_.centerY(), 0.5f, style.fgColor, ALIGN_CENTER);
}
Bounds textBounds(bounds_.x + paddingX + textPadding_.left, bounds_.y, availWidth, bounds_.h);
dc.DrawTextRect(text_.c_str(), textBounds, style.fgColor, ALIGN_VCENTER | FLAG_WRAP_TEXT);
}
dc.SetFontScale(1.0f, 1.0f);
}
if (selected_) {
dc.Draw()->DrawImage(dc.theme->checkOn, bounds_.x2() - 40, bounds_.centerY(), 1.0f, style.fgColor, ALIGN_CENTER);
}
}
void RegexPattern::Print(DebugWriter* w)
{
w->Print(L"/");
Js::InternalString str = GetSource();
if (str.GetLength() == 0)
w->Print(L"(?:)");
else
{
for (charcount_t i = 0; i < str.GetLength(); ++i)
{
const wchar_t c = str.GetBuffer()[i];
switch(c)
{
case L'/':
w->Print(L"\\%lc", c);
break;
case L'\n':
case L'\r':
case L'\x2028':
case L'\x2029':
w->PrintEscapedChar(c);
break;
case L'\\':
Assert(i + 1 < str.GetLength()); // cannot end in a '\'
w->Print(L"\\%lc", str.GetBuffer()[++i]);
break;
default:
w->PrintEscapedChar(c);
break;
}
}
}
w->Print(L"/");
if (IsIgnoreCase())
w->Print(L"i");
if (IsGlobal())
w->Print(L"g");
if (IsMultiline())
w->Print(L"m");
if (IsUnicode())
w->Print(L"u");
if (IsSticky())
w->Print(L"y");
w->Print(L" /* ");
w->Print(L", ");
w->Print(isLiteral ? L"literal" : L"dynamic");
w->Print(L" */");
}
void cBlockPistonHandler::RetractPiston(Vector3i a_BlockPos, cWorld * a_World)
{
BLOCKTYPE pistonBlock;
NIBBLETYPE pistonMeta;
a_World->GetBlockTypeMeta(a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, pistonBlock, pistonMeta);
if (!IsExtended(pistonMeta))
{
// Already retracted, bail out
return;
}
Vector3i pushDir = MetadataToOffset(pistonMeta);
// Check the extension:
Vector3i extensionPos = a_BlockPos + pushDir;
if (a_World->GetBlock(extensionPos) != E_BLOCK_PISTON_EXTENSION)
{
LOGD("%s: Piston without an extension - still extending, or just in an invalid state?", __FUNCTION__);
return;
}
// Remove Extension
a_World->SetBlock(extensionPos.x, extensionPos.y, extensionPos.z, E_BLOCK_AIR, 0);
a_World->SetBlock(a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, pistonBlock, pistonMeta & ~(8));
a_World->BroadcastBlockAction(a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, 1, pistonMeta & ~(8), pistonBlock);
a_World->BroadcastSoundEffect("tile.piston.in", a_BlockPos.x, a_BlockPos.y, a_BlockPos.z, 0.5f, 0.7f);
if (!IsSticky(pistonBlock))
{
// No need for block pulling, bail out
return;
}
// Get the block to pull
a_BlockPos += pushDir * 2;
// Try to "push" the pulling block in the opposite direction
pushDir *= -1;
Vector3iSet pushedBlocks;
if (!CanPushBlock(a_BlockPos, a_World, false, pushedBlocks, pushDir))
{
// Not pushable, bail out
return;
}
PushBlocks(pushedBlocks, a_World, pushDir);
}
void cBlockPistonHandler::RetractPiston(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 retracted, bail out
return;
}
// Check the extension:
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1);
if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_PISTON_EXTENSION)
{
LOGD("%s: Piston without an extension - still extending, or just in an invalid state?", __FUNCTION__);
return;
}
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1);
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta & ~(8));
a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 1, pistonMeta & ~(8), pistonBlock);
a_World->BroadcastSoundEffect("tile.piston.in", static_cast<double>(a_BlockX), static_cast<double>(a_BlockY), static_cast<double>(a_BlockZ), 0.5f, 0.7f);
AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1);
// Retract the extension, pull block if appropriate
if (IsSticky(pistonBlock))
{
int tempx = a_BlockX, tempy = a_BlockY, tempz = a_BlockZ;
AddPistonDir(tempx, tempy, tempz, pistonMeta, 1);
BLOCKTYPE tempBlock;
NIBBLETYPE tempMeta;
a_World->GetBlockTypeMeta(tempx, tempy, tempz, tempBlock, tempMeta);
if (CanPull(tempBlock, tempMeta))
{
// Pull the block
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, tempBlock, tempMeta);
a_World->SetBlock(tempx, tempy, tempz, E_BLOCK_AIR, 0);
return;
}
}
// Retract without pulling
a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_AIR, 0);
}
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));
}
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));
}