From 36650da187e62bb7a224c580ce5494722e9de42f Mon Sep 17 00:00:00 2001 From: "madmaxoft@gmail.com" Date: Wed, 6 Jun 2012 20:54:58 +0000 Subject: Grass spreads to adjacent dirt blocks. Doesn't check dest light yet. git-svn-id: http://mc-server.googlecode.com/svn/trunk@563 0a769ca7-a7f5-676a-18bf-c427514a06d6 --- source/cChunk.cpp | 69 +++++++++++++++++++++++++++++++++++++++++-------------- source/cChunk.h | 1 + 2 files changed, 53 insertions(+), 17 deletions(-) diff --git a/source/cChunk.cpp b/source/cChunk.cpp index 6d260e5b1..46c7d78ad 100644 --- a/source/cChunk.cpp +++ b/source/cChunk.cpp @@ -556,20 +556,6 @@ void cChunk::TickBlocks(MTRand & a_TickRandom) BLOCKTYPE ID = m_BlockTypes[Index]; switch( ID ) { - case E_BLOCK_GRASS: - { - // Grass turns into dirt if there's another block on top of it: - BLOCKTYPE AboveBlock = GetBlock(Index + (Width * Width) ); - if (!( (AboveBlock == E_BLOCK_AIR) || (g_BlockOneHitDig[AboveBlock]) || (g_BlockTransparent[AboveBlock]) ) ) - { - FastSetBlock( m_BlockTickX, m_BlockTickY, m_BlockTickZ, E_BLOCK_DIRT, GetNibble( m_BlockMeta, Index ) ); - } - - // TODO: Grass spreads to nearby blocks if there's enough light and free space above that block - // Ref.: http://www.minecraftwiki.net/wiki/Grass_Block#Growth - break; - } - case E_BLOCK_CROPS: { NIBBLETYPE Meta = GetMeta(Index); @@ -580,10 +566,10 @@ void cChunk::TickBlocks(MTRand & a_TickRandom) break; } + case E_BLOCK_GRASS: TickGrass(m_BlockTickX, m_BlockTickY, m_BlockTickZ, a_TickRandom); break; case E_BLOCK_PUMPKIN_STEM: - case E_BLOCK_MELON_STEM: TickMelonPumpkin(m_BlockTickX, m_BlockTickY, m_BlockTickZ, Index, ID, a_TickRandom); break; - - case E_BLOCK_FARMLAND: TickFarmland(m_BlockTickX, m_BlockTickY, m_BlockTickZ); break; + case E_BLOCK_MELON_STEM: TickMelonPumpkin(m_BlockTickX, m_BlockTickY, m_BlockTickZ, Index, ID, a_TickRandom); break; + case E_BLOCK_FARMLAND: TickFarmland(m_BlockTickX, m_BlockTickY, m_BlockTickZ); break; case E_BLOCK_SAPLING: { @@ -617,6 +603,50 @@ void cChunk::TickBlocks(MTRand & a_TickRandom) +void cChunk::TickGrass(int a_RelX, int a_RelY, int a_RelZ, MTRand & a_TickRandom) +{ + // Grass turns into dirt if there's another block on top of it: + BLOCKTYPE AboveBlock = cChunkDef::GetBlock(m_BlockTypes, a_RelX, a_RelY + 1, a_RelZ); + if (!((g_BlockOneHitDig[AboveBlock]) || (g_BlockTransparent[AboveBlock]))) + { + FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0); + } + + // Grass spreads to nearby blocks if there's enough light (TODO) and free space above that block + // Ref.: http://www.minecraftwiki.net/wiki/Grass_Block#Growth + for (int i = 0; i < 2; i++) // Pick two blocks to grow to + { + int OfsX = a_TickRandom.randInt(2) - 1; // [-1 .. 1] + int OfsY = a_TickRandom.randInt(4) - 3; // [-3 .. 1] + int OfsZ = a_TickRandom.randInt(2) - 1; // [-1 .. 1] + + BLOCKTYPE DestBlock; + NIBBLETYPE DestMeta; + if ( + !UnboundedRelGetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, DestBlock, DestMeta) || + (DestBlock != E_BLOCK_DIRT) + ) + { + continue; + } + + BLOCKTYPE AboveDest; + NIBBLETYPE AboveMeta; + if ( + UnboundedRelGetBlock(a_RelX + OfsX, a_RelY + OfsY + 1, a_RelZ + OfsZ, AboveDest, AboveMeta) && + ((g_BlockOneHitDig[AboveBlock]) || (g_BlockTransparent[AboveBlock])) + // TODO: Query dest light, if it's enough + ) + { + UnboundedRelFastSetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, E_BLOCK_GRASS, 0); + } + } +} + + + + + void cChunk::TickMelonPumpkin(int a_RelX, int a_RelY, int a_RelZ, int a_BlockIdx, BLOCKTYPE a_BlockType, MTRand & a_TickRandom) { NIBBLETYPE Meta = GetMeta(a_BlockIdx); @@ -775,6 +805,11 @@ void cChunk::TickFarmland(int a_RelX, int a_RelY, int a_RelZ) bool cChunk::UnboundedRelGetBlock(int a_RelX, int a_RelY, int a_RelZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta) { + if ((a_RelY < 0) || (a_RelY > cChunkDef::Height)) + { + return false; + } + if ((a_RelX >= 0) && (a_RelX < cChunkDef::Width) && (a_RelZ >= 0) && (a_RelZ < cChunkDef::Width)) { int BlockIdx = cChunkDef::MakeIndexNoCheck(a_RelX, a_RelY, a_RelZ); diff --git a/source/cChunk.h b/source/cChunk.h index 3ae29aaba..efd697b63 100644 --- a/source/cChunk.h +++ b/source/cChunk.h @@ -227,6 +227,7 @@ private: cClientHandleList GetAllClients(void) const {return m_LoadedByClient; } void TickBlocks(MTRand & a_TickRandom); + void TickGrass (int a_RelX, int a_RelY, int a_RelZ, MTRand & a_TickRandom); void TickMelonPumpkin(int a_RelX, int a_RelY, int a_RelZ, int a_BlockIdx, BLOCKTYPE a_BlockType, MTRand & a_TickRandom); void TickFarmland (int a_RelX, int a_RelY, int a_RelZ); -- cgit v1.2.3