diff options
| -rw-r--r-- | src/Blocks/BlockDoor.h | 59 |
1 files changed, 40 insertions, 19 deletions
diff --git a/src/Blocks/BlockDoor.h b/src/Blocks/BlockDoor.h index eaa039c50..bc59051c3 100644 --- a/src/Blocks/BlockDoor.h +++ b/src/Blocks/BlockDoor.h @@ -111,19 +111,19 @@ public: } if ((a_Yaw >= 0) && (a_Yaw < 90)) { - return 0x0; + return 0x00; } else if ((a_Yaw >= 180) && (a_Yaw < 270)) { - return 0x2; + return 0x02; } else if ((a_Yaw >= 90) && (a_Yaw < 180)) { - return 0x1; + return 0x01; } else { - return 0x3; + return 0x03; } } @@ -137,29 +137,45 @@ public: static NIBBLETYPE IsOpen(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ) { - NIBBLETYPE Meta = GetTrueDoorMeta(a_ChunkInterface, a_BlockX, a_BlockY, a_BlockZ); - return ((Meta & 0x4) != 0); + NIBBLETYPE Meta = GetCompleteDoorMeta(a_ChunkInterface, a_BlockX, a_BlockY, a_BlockZ); + return ((Meta & 0x04) != 0); } - /** Read the meta from the true part of the door and returns a meta with all infos include. */ - static NIBBLETYPE GetTrueDoorMeta(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ) + /** Returns the complete meta composed from the both parts of the door as (TopMeta << 4) | BottomMeta + The coords may point to either part of the door. + The returned value has bit 3 (0x08) set iff the coords point to the top part of the door. + Fails gracefully for (invalid) doors on the world's top and bottom. */ + static NIBBLETYPE GetCompleteDoorMeta(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ) { NIBBLETYPE Meta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY, a_BlockZ); - if ((Meta & 0x8) != 0) + if ((Meta & 0x08) != 0) { - NIBBLETYPE DownMeta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY - 1, a_BlockZ); - return (DownMeta & 0x7) | 0x8 | (((Meta & 0x1) != 0) ? 16 : 0); + // The coords are pointing at the top part of the door + if (a_BlockX > 0) + { + NIBBLETYPE DownMeta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY - 1, a_BlockZ); + return (DownMeta & 0x07) | 0x08 | (Meta << 4); + } + // This is the top part of the door at the bottommost layer of the world, there's no bottom: + return 0x08 | (Meta << 4); } else { - NIBBLETYPE UpMeta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY + 1, a_BlockZ); - return (Meta & 0x7) | (((UpMeta & 0x1) != 0) ? 16 : 0); + // The coords are pointing at the bottom part of the door + if (a_BlockY < cChunkDef::Height - 1) + { + NIBBLETYPE UpMeta = a_ChunkInterface.GetBlockMeta(a_BlockX, a_BlockY + 1, a_BlockZ); + return Meta | (UpMeta << 4); + } + // This is the bottom part of the door at the topmost layer of the world, there's no top: + return Meta; } } + /** Sets the door to the specified state. If the door is already in that state, does nothing. */ static void SetOpen(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ, bool a_Open) { BLOCKTYPE Block = a_ChunkInterface.GetBlock(a_BlockX, a_BlockY, a_BlockZ); @@ -168,22 +184,27 @@ public: return; } - NIBBLETYPE Meta = GetTrueDoorMeta(a_ChunkInterface, a_BlockX, a_BlockY, a_BlockZ); - bool Opened = (Meta & 0x4) != 0; - if (Opened == a_Open) + NIBBLETYPE Meta = GetCompleteDoorMeta(a_ChunkInterface, a_BlockX, a_BlockY, a_BlockZ); + bool IsOpened = ((Meta & 0x04) != 0); + if (IsOpened == a_Open) { return; } // Change the door - NIBBLETYPE NewMeta = (Meta & 0x7) ^ 0x4; - if ((Meta & 0x8) == 0) + NIBBLETYPE NewMeta = (Meta & 0x07) ^ 0x04; // Flip the "IsOpen" bit (0x04) + if ((Meta & 0x08) == 0) { + // The block is the bottom part of the door a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY, a_BlockZ, NewMeta); } else { - a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY - 1, a_BlockZ, NewMeta); + // The block is the top part of the door, set the meta to the corresponding top part + if (a_BlockY > 0) + { + a_ChunkInterface.SetBlockMeta(a_BlockX, a_BlockY - 1, a_BlockZ, NewMeta); + } } } |