diff options
Diffstat (limited to 'src/Blocks/BlockSapling.h')
| -rw-r--r-- | src/Blocks/BlockSapling.h | 142 |
1 files changed, 135 insertions, 7 deletions
diff --git a/src/Blocks/BlockSapling.h b/src/Blocks/BlockSapling.h index bec79c6f3..c15e0a195 100644 --- a/src/Blocks/BlockSapling.h +++ b/src/Blocks/BlockSapling.h @@ -3,6 +3,7 @@ #include "BlockHandler.h" #include "../World.h" +#include "../FastRandom.h" @@ -34,17 +35,144 @@ public: virtual void OnUpdate(cChunkInterface & cChunkInterface, cWorldInterface & a_WorldInterface, cBlockPluginInterface & a_PluginInterface, cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override { NIBBLETYPE Meta = a_Chunk.GetMeta(a_RelX, a_RelY, a_RelZ); - - if ((Meta & 0x08) != 0) + NIBBLETYPE Light = std::max(a_Chunk.GetBlockLight(a_RelX, a_RelY, a_RelZ), a_Chunk.GetTimeAlteredLight(a_Chunk.GetSkyLight(a_RelX, a_RelY, a_RelZ))); + + // Only grow if we have the right amount of light + if (Light > 8) + { + cFastRandom random; + // Only grow if we are in the right growth stage and have the right amount of space around them. + if (((Meta & 0x08) != 0) && (random.NextInt(99) < 45) && CanGrowAt(a_Chunk, a_RelX, a_RelY, a_RelZ, Meta)) + { + int BlockX = a_RelX + a_Chunk.GetPosX() * cChunkDef::Width; + int BlockZ = a_RelZ + a_Chunk.GetPosZ() * cChunkDef::Width; + a_Chunk.GetWorld()->GrowTree(BlockX, a_RelY, BlockZ); + } + // Only move to the next growth stage if we haven't gone there yet + else if (((Meta & 0x08) == 0) && (random.NextInt(99) < 45)) + { + a_Chunk.SetMeta(a_RelX, a_RelY, a_RelZ, Meta | 0x08); + } + } + } + + bool CanGrowAt(cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Meta) + { + a_Meta = a_Meta & 0x07; + int CheckHeight = 0; + bool LargeTree = false; + + // Get the height to check against + switch (a_Meta) { - int BlockX = a_RelX + a_Chunk.GetPosX() * cChunkDef::Width; - int BlockZ = a_RelZ + a_Chunk.GetPosZ() * cChunkDef::Width; - a_Chunk.GetWorld()->GrowTree(BlockX, a_RelY, BlockZ); + case E_META_SAPLING_APPLE: + { + CheckHeight = 5; + break; + } + case E_META_SAPLING_CONIFER: + { + CheckHeight = 7; + if (IsLargeTree(a_Chunk, a_RelX, a_RelY, a_RelZ, a_Meta)) + { + CheckHeight = 16; + LargeTree = true; + } + break; + } + case E_META_SAPLING_BIRCH: + { + CheckHeight = 6; + break; + } + case E_META_SAPLING_JUNGLE: + { + CheckHeight = 7; + if (IsLargeTree(a_Chunk, a_RelX, a_RelY, a_RelZ, a_Meta)) + { + CheckHeight = 13; + LargeTree = true; + } + break; + } + // Dark Oaks only grow in a 2x2 area + case E_META_SAPLING_DARK_OAK: + { + if (!IsLargeTree(a_Chunk, a_RelX, a_RelY, a_RelZ, a_Meta)) + { + return false; + } + CheckHeight = 7; + LargeTree = true; + break; + } } - else + // We should always get a valid CheckHeight + ASSERT(CheckHeight != 0); + + // Don't grow a tree if we don't have enough space left above it in the chunk + if ((a_RelY + CheckHeight) > cChunkDef::Height) + { + return false; + } + bool CanGrow = true; + + // Validate the neighbor blocks. They cannot be solid. + BLOCKTYPE check = E_BLOCK_AIR; + a_Chunk.UnboundedRelGetBlockType(a_RelX - 1, a_RelY, a_RelZ, check); + CanGrow = CanGrow && cBlockInfo::IsTransparent(check); + + a_Chunk.UnboundedRelGetBlockType(a_RelX + 1, a_RelY, a_RelZ, check); + CanGrow = CanGrow && cBlockInfo::IsTransparent(check); + + a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY, a_RelZ - 1, check); + CanGrow = CanGrow && cBlockInfo::IsTransparent(check); + + a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY, a_RelZ + 1, check); + CanGrow = CanGrow && cBlockInfo::IsTransparent(check); + + + + while (CheckHeight && CanGrow) { - a_Chunk.SetMeta(a_RelX, a_RelY, a_RelZ, Meta | 0x08); + check = a_Chunk.GetBlock(a_RelX, a_RelY + CheckHeight, a_RelZ); + CanGrow = CanGrow && ((check == E_BLOCK_AIR) || (check == E_BLOCK_LEAVES)); + + // We have to check above the neighboring saplings as well + if (LargeTree) + { + a_Chunk.UnboundedRelGetBlockType(a_RelX + 1, a_RelY + CheckHeight, a_RelZ, check); + CanGrow = CanGrow && ((check == E_BLOCK_AIR) || (check == E_BLOCK_LEAVES)); + + a_Chunk.UnboundedRelGetBlockType(a_RelX, a_RelY + CheckHeight, a_RelZ + 1, check); + CanGrow = CanGrow && ((check == E_BLOCK_AIR) || (check == E_BLOCK_LEAVES)); + + a_Chunk.UnboundedRelGetBlockType(a_RelX + 1, a_RelY + CheckHeight, a_RelZ + 1, check); + CanGrow = CanGrow && ((check == E_BLOCK_AIR) || (check == E_BLOCK_LEAVES)); + } + + --CheckHeight; } + + return CanGrow; + } + +private: + bool IsLargeTree(cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ, NIBBLETYPE a_Meta) + { + BLOCKTYPE type; + NIBBLETYPE meta; + bool LargeTree = true; + a_Chunk.UnboundedRelGetBlock(a_RelX + 1, a_RelY, a_RelZ, type, meta); + LargeTree = LargeTree && (type == E_BLOCK_SAPLING) && ((a_Meta & meta) == a_Meta); + + a_Chunk.UnboundedRelGetBlock(a_RelX + 1, a_RelY, a_RelZ + 1, type, meta); + LargeTree = LargeTree && (type == E_BLOCK_SAPLING) && ((a_Meta & meta) == a_Meta); + + a_Chunk.UnboundedRelGetBlock(a_RelX, a_RelY, a_RelZ + 1, type, meta); + LargeTree = LargeTree && (type == E_BLOCK_SAPLING) && ((a_Meta & meta) == a_Meta); + + return LargeTree; } } ; |