diff options
Diffstat (limited to 'src/Blocks/BlockChest.h')
| -rw-r--r-- | src/Blocks/BlockChest.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/src/Blocks/BlockChest.h b/src/Blocks/BlockChest.h new file mode 100644 index 000000000..488c58ac5 --- /dev/null +++ b/src/Blocks/BlockChest.h @@ -0,0 +1,223 @@ + +#pragma once + +#include "BlockEntity.h" +#include "../World.h" +#include "../BlockArea.h" +#include "../Entities/Player.h" + + + + + +class cBlockChestHandler : + public cBlockEntityHandler +{ +public: + cBlockChestHandler(BLOCKTYPE a_BlockType) + : cBlockEntityHandler(a_BlockType) + { + } + + + virtual bool GetPlacementBlockTypeMeta( + cWorld * a_World, cPlayer * a_Player, + int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, + int a_CursorX, int a_CursorY, int a_CursorZ, + BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta + ) override + { + a_BlockType = m_BlockType; + + // Is there a doublechest already next to this block? + if (!CanBeAt(a_World, a_BlockX, a_BlockY, a_BlockZ)) + { + // Yup, cannot form a triple-chest, refuse: + return false; + } + + // Check if this forms a doublechest, if so, need to adjust the meta: + cBlockArea Area; + if (!Area.Read(a_World, a_BlockX - 1, a_BlockX + 1, a_BlockY, a_BlockY, a_BlockZ - 1, a_BlockZ + 1)) + { + return false; + } + double rot = a_Player->GetRotation(); + if ( + (Area.GetRelBlockType(0, 0, 1) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(2, 0, 1) == E_BLOCK_CHEST) + ) + { + a_BlockMeta = ((rot >= -90) && (rot < 90)) ? 2 : 3; + return true; + } + if ( + (Area.GetRelBlockType(0, 0, 1) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(2, 0, 1) == E_BLOCK_CHEST) + ) + { + a_BlockMeta = (rot < 0) ? 4 : 5; + return true; + } + + // Single chest, get meta from rotation only + a_BlockMeta = RotationToMetaData(rot); + return true; + } + + + virtual void OnPlacedByPlayer( + cWorld * a_World, cPlayer * a_Player, + int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, + int a_CursorX, int a_CursorY, int a_CursorZ, + BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta + ) override + { + // Check if this forms a doublechest, if so, need to adjust the meta: + cBlockArea Area; + if (!Area.Read(a_World, a_BlockX - 1, a_BlockX + 1, a_BlockY, a_BlockY, a_BlockZ - 1, a_BlockZ + 1)) + { + return; + } + + double rot = a_Player->GetRotation(); + // Choose meta from player rotation, choose only between 2 or 3 + NIBBLETYPE NewMeta = ((rot >= -90) && (rot < 90)) ? 2 : 3; + if ( + CheckAndAdjustNeighbor(a_World, Area, 0, 1, NewMeta) || + CheckAndAdjustNeighbor(a_World, Area, 2, 1, NewMeta) + ) + { + // Forming a double chest in the X direction + return; + } + // Choose meta from player rotation, choose only between 4 or 5 + NewMeta = (rot < 0) ? 4 : 5; + if ( + CheckAndAdjustNeighbor(a_World, Area, 1, 0, NewMeta) || + CheckAndAdjustNeighbor(a_World, Area, 2, 2, NewMeta) + ) + { + // Forming a double chest in the Z direction + return; + } + + // Single chest, no further processing needed + } + + + virtual const char * GetStepSound(void) override + { + return "step.wood"; + } + + + virtual bool CanBeAt(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ) + { + cBlockArea Area; + if (!Area.Read(a_World, a_BlockX - 2, a_BlockX + 2, a_BlockY, a_BlockY, a_BlockZ - 2, a_BlockZ + 2)) + { + // Cannot read the surroundings, probably at the edge of loaded chunks. Disallow. + return false; + } + + int NumChestNeighbors = 0; + if (Area.GetRelBlockType(1, 0, 2) == E_BLOCK_CHEST) + { + if ( + (Area.GetRelBlockType(0, 0, 2) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(1, 0, 1) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(1, 0, 3) == E_BLOCK_CHEST) + ) + { + // Already a doublechest neighbor, disallow: + return false; + } + NumChestNeighbors += 1; + } + if (Area.GetRelBlockType(3, 0, 2) == E_BLOCK_CHEST) + { + if ( + (Area.GetRelBlockType(4, 0, 2) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(3, 0, 1) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(3, 0, 3) == E_BLOCK_CHEST) + ) + { + // Already a doublechest neighbor, disallow: + return false; + } + NumChestNeighbors += 1; + } + if (Area.GetRelBlockType(2, 0, 1) == E_BLOCK_CHEST) + { + if ( + (Area.GetRelBlockType(2, 0, 0) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(1, 0, 1) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(3, 0, 1) == E_BLOCK_CHEST) + ) + { + // Already a doublechest neighbor, disallow: + return false; + } + NumChestNeighbors += 1; + } + if (Area.GetRelBlockType(2, 0, 3) == E_BLOCK_CHEST) + { + if ( + (Area.GetRelBlockType(2, 0, 4) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(1, 0, 3) == E_BLOCK_CHEST) || + (Area.GetRelBlockType(3, 0, 3) == E_BLOCK_CHEST) + ) + { + // Already a doublechest neighbor, disallow: + return false; + } + NumChestNeighbors += 1; + } + return (NumChestNeighbors < 2); + } + + + /// Translates player rotation when placing a chest into the chest block metadata. Valid for single chests only + static NIBBLETYPE RotationToMetaData(double a_Rotation) + { + a_Rotation += 90 + 45; // So its not aligned with axis + + if (a_Rotation > 360.f) + { + a_Rotation -= 360.f; + } + if ((a_Rotation >= 0.f) && (a_Rotation < 90.f)) + { + return 0x4; + } + else if ((a_Rotation >= 180) && (a_Rotation < 270)) + { + return 0x5; + } + else if ((a_Rotation >= 90) && (a_Rotation < 180)) + { + return 0x2; + } + else + { + return 0x3; + } + } + + + /// If there's a chest in the a_Area in the specified coords, modifies its meta to a_NewMeta and returns true. + bool CheckAndAdjustNeighbor(cWorld * a_World, const cBlockArea & a_Area, int a_RelX, int a_RelZ, NIBBLETYPE a_NewMeta) + { + if (a_Area.GetRelBlockType(a_RelX, 0, a_RelZ) != E_BLOCK_CHEST) + { + return false; + } + a_World->SetBlockMeta(a_Area.GetOriginX() + a_RelX, a_Area.GetOriginY(), a_Area.GetOriginZ() + a_RelZ, a_NewMeta); + return true; + } +} ; + + + + |