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author | Tiger Wang <ziwei.tiger@hotmail.co.uk> | 2014-07-18 21:10:51 +0200 |
---|---|---|
committer | Tiger Wang <ziwei.tiger@hotmail.co.uk> | 2014-07-18 21:10:51 +0200 |
commit | 37140ae57835680d2c4fb3aa365082622d3a150e (patch) | |
tree | 89a636c74375b3c9f0fe77b20ecbadc693bd0989 /src/Items/ItemBucket.h | |
parent | Merge branch 'master' of https://github.com/mc-server/MCServer into portals (diff) | |
parent | Monster fixes (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | src/Items/ItemBucket.h | 79 |
1 files changed, 53 insertions, 26 deletions
diff --git a/src/Items/ItemBucket.h b/src/Items/ItemBucket.h index 68c89dd85..6d7926fa4 100644 --- a/src/Items/ItemBucket.h +++ b/src/Items/ItemBucket.h @@ -41,7 +41,7 @@ public: bool ScoopUpFluid(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace) { - if (a_BlockFace > 0) + if (a_BlockFace != BLOCK_FACE_NONE) { return false; } @@ -49,7 +49,7 @@ public: Vector3i BlockPos; if (!GetBlockFromTrace(a_World, a_Player, BlockPos)) { - return false; // Nothing in range. + return false; // Nothing in range. } if (a_World->GetBlockMeta(BlockPos.x, BlockPos.y, BlockPos.z) != 0) @@ -94,30 +94,16 @@ public: bool PlaceFluid(cWorld * a_World, cPlayer * a_Player, const cItem & a_Item, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_BlockFace, BLOCKTYPE a_FluidBlock) - { - if (a_BlockFace < 0) + { + if (a_BlockFace != BLOCK_FACE_NONE) { return false; } - BLOCKTYPE CurrentBlock = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ); - bool CanWashAway = cFluidSimulator::CanWashAway(CurrentBlock); - if (!CanWashAway) + BLOCKTYPE CurrentBlock; + Vector3i BlockPos; + if (!GetPlacementCoordsFromTrace(a_World, a_Player, BlockPos, CurrentBlock)) { - // The block pointed at cannot be washed away, so put fluid on top of it / on its sides - AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, a_BlockFace); - CurrentBlock = a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ); - } - if ( - !CanWashAway && - (CurrentBlock != E_BLOCK_AIR) && - (CurrentBlock != E_BLOCK_WATER) && - (CurrentBlock != E_BLOCK_STATIONARY_WATER) && - (CurrentBlock != E_BLOCK_LAVA) && - (CurrentBlock != E_BLOCK_STATIONARY_LAVA) - ) - { - // Cannot place water here return false; } @@ -138,7 +124,7 @@ public: } // Wash away anything that was there prior to placing: - if (CanWashAway) + if (cFluidSimulator::CanWashAway(CurrentBlock)) { cBlockHandler * Handler = BlockHandler(CurrentBlock); if (Handler->DoesDropOnUnsuitable()) @@ -149,13 +135,13 @@ public: } } - a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, a_FluidBlock, 0); + a_World->SetBlock(BlockPos.x, BlockPos.y, BlockPos.z, a_FluidBlock, 0); return true; } - bool GetBlockFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & BlockPos) + bool GetBlockFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & a_BlockPos) { class cCallbacks : public cBlockTracer::cCallbacks @@ -174,7 +160,7 @@ public: { if (IsBlockWater(a_BlockType) || IsBlockLava(a_BlockType)) { - if (a_BlockMeta != 0) // GetBlockFromTrace is called for scooping up fluids; the hit block should be a source + if (a_BlockMeta != 0) // GetBlockFromTrace is called for scooping up fluids; the hit block should be a source { return false; } @@ -198,8 +184,49 @@ public: } - BlockPos.Set(Callbacks.m_Pos.x, Callbacks.m_Pos.y, Callbacks.m_Pos.z); + a_BlockPos = Callbacks.m_Pos; return true; } + + + bool GetPlacementCoordsFromTrace(cWorld * a_World, cPlayer * a_Player, Vector3i & a_BlockPos, BLOCKTYPE & a_BlockType) + { + class cCallbacks : + public cBlockTracer::cCallbacks + { + public: + Vector3i m_Pos; + BLOCKTYPE m_ReplacedBlock; + + virtual bool OnNextBlock(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta, char a_EntryFace) override + { + if (a_BlockType != E_BLOCK_AIR) + { + m_ReplacedBlock = a_BlockType; + if (!cFluidSimulator::CanWashAway(a_BlockType) && !IsBlockLiquid(a_BlockType)) + { + AddFaceDirection(a_BlockX, a_BlockY, a_BlockZ, (eBlockFace)a_EntryFace); // Was an unwashawayable block, can't overwrite it! + } + m_Pos.Set(a_BlockX, a_BlockY, a_BlockZ); // (Block could be washed away, replace it) + return true; // Abort tracing + } + return false; + } + } Callbacks; + cLineBlockTracer Tracer(*a_World, Callbacks); + Vector3d Start(a_Player->GetEyePosition()); + Vector3d End(a_Player->GetEyePosition() + a_Player->GetLookVector() * 5); + + // cTracer::Trace returns true when whole line was traversed. By returning true when we hit something, we ensure that this never happens if liquid could be placed + // Use this to judge whether the position is valid + if (!Tracer.Trace(Start.x, Start.y, Start.z, End.x, End.y, End.z)) + { + a_BlockPos = Callbacks.m_Pos; + a_BlockType = Callbacks.m_ReplacedBlock; + return true; + } + + return false; + } }; |