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Changed cChunkData::SetMeta to return a bool indicating whether the value changed

This commit is contained in:
Tycho 2014-05-21 20:18:09 +01:00
parent 5929ffbc40
commit bd880603a5
2 changed files with 9 additions and 7 deletions
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6
src/Chunk.h
View File

@ -328,11 +328,11 @@ public:
}
inline void SetMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Meta)
{
if (!(GetMeta(a_RelX, a_RelY, a_RelZ) == a_Meta))
bool hasChanged = m_ChunkData.SetMeta(a_RelX, a_RelY, a_RelZ, a_Meta);
if (hasChanged)
{
MarkDirty();
m_ChunkData.SetMeta(a_RelX, a_RelY, a_RelZ, a_Meta);
m_PendingSendBlocks.push_back(sSetBlock(m_PosX, m_PosZ, a_RelX, a_RelY, a_RelZ, GetBlock(a_RelX, a_RelY, a_RelZ), a_Meta));
}
}

10
src/ChunkData.h
View File

@ -167,7 +167,7 @@ public:
return 0;
}
void SetMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Nibble)
bool SetMeta(int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Nibble)
{
if (
(a_RelX >= cChunkDef::Width) || (a_RelX < 0) ||
@ -176,7 +176,7 @@ public:
)
{
ASSERT(!"cChunkData::SetMeta(): index out of range!");
return;
return false;
}
int Section = a_RelY / CHUNK_SECTION_HEIGHT;
@ -184,21 +184,23 @@ public:
{
if((a_Nibble & 0xf) == 0x00)
{
return;
return false;
}
m_Sections[Section] = Allocate();
if(m_Sections[Section] != NULL)
{
ASSERT(!"Failed to allocate a new section in Chunkbuffer");
return;
return false;
}
ZeroSection(m_Sections[Section]);
}
int Index = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY - (Section * CHUNK_SECTION_HEIGHT), a_RelZ);
NIBBLETYPE oldval = m_Sections[Section]->m_BlockMeta[Index / 2] >> ((Index & 1) * 4) & 0xf;
m_Sections[Section]->m_BlockMeta[Index / 2] = static_cast<NIBBLETYPE>(
(m_Sections[Section]->m_BlockMeta[Index / 2] & (0xf0 >> ((Index & 1) * 4))) | // The untouched nibble
((a_Nibble & 0x0f) << ((Index & 1) * 4)) // The nibble being set
);
return oldval == a_Nibble;
}
NIBBLETYPE GetBlockLight(int a_RelX, int a_RelY, int a_RelZ) const