diff options
Diffstat (limited to 'src/Blocks/BlockPiston.h')
| -rw-r--r-- | src/Blocks/BlockPiston.h | 134 |
1 files changed, 133 insertions, 1 deletions
diff --git a/src/Blocks/BlockPiston.h b/src/Blocks/BlockPiston.h index 7632b5e5a..e6fa48e54 100644 --- a/src/Blocks/BlockPiston.h +++ b/src/Blocks/BlockPiston.h @@ -21,6 +21,138 @@ public: int a_CursorX, int a_CursorY, int a_CursorZ, BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta ) override; + + static NIBBLETYPE RotationPitchToMetaData(double a_Rotation, double a_Pitch) + { + if (a_Pitch >= 50) + { + return 0x1; + } + else if (a_Pitch <= -50) + { + return 0x0; + } + else + { + a_Rotation += 90 + 45; // So its not aligned with axis + + if (a_Rotation > 360) + { + a_Rotation -= 360; + } + if ((a_Rotation >= 0) && (a_Rotation < 90)) + { + 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; + } + } + } + + static eBlockFace MetaDataToDirection(NIBBLETYPE a_MetaData) + { + switch (a_MetaData) + { + case 0x0: return BLOCK_FACE_YM; + case 0x1: return BLOCK_FACE_YP; + case 0x2: return BLOCK_FACE_ZM; + case 0x3: return BLOCK_FACE_ZP; + case 0x4: return BLOCK_FACE_XM; + case 0x5: return BLOCK_FACE_XP; + default: + { + ASSERT(!"Invalid Metadata"); + return BLOCK_FACE_NONE; + } + } + } + + static void ExtendPiston(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World); + static void RetractPiston(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World); + +private: + + /// Returns true if the piston (specified by blocktype) is a sticky piston + static inline bool IsSticky(BLOCKTYPE a_BlockType) { return (a_BlockType == E_BLOCK_STICKY_PISTON); } + + /// Returns true if the piston (with the specified meta) is extended + static inline bool IsExtended(NIBBLETYPE a_PistonMeta) { return ((a_PistonMeta & 0x8) != 0x0); } + + /// Returns true if the specified block can be pushed by a piston (and left intact) + static inline bool CanPush(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) + { + switch (a_BlockType) + { + case E_BLOCK_ANVIL: + case E_BLOCK_BED: + case E_BLOCK_BEDROCK: + case E_BLOCK_BREWING_STAND: + case E_BLOCK_CHEST: + case E_BLOCK_COMMAND_BLOCK: + case E_BLOCK_DISPENSER: + case E_BLOCK_DROPPER: + case E_BLOCK_ENCHANTMENT_TABLE: + case E_BLOCK_END_PORTAL: + case E_BLOCK_END_PORTAL_FRAME: + case E_BLOCK_FURNACE: + case E_BLOCK_LIT_FURNACE: + case E_BLOCK_HOPPER: + case E_BLOCK_JUKEBOX: + case E_BLOCK_MOB_SPAWNER: + case E_BLOCK_NETHER_PORTAL: + case E_BLOCK_NOTE_BLOCK: + case E_BLOCK_OBSIDIAN: + case E_BLOCK_PISTON_EXTENSION: + { + return false; + } + case E_BLOCK_STICKY_PISTON: + case E_BLOCK_PISTON: + { + // A piston can only be pushed if retracted: + return !IsExtended(a_BlockMeta); + } + } + return true; + } + + /// Returns true if the specified block can be pushed by a piston and broken / replaced + static inline bool CanBreakPush(BLOCKTYPE a_BlockType) { return cBlockInfo::IsPistonBreakable(a_BlockType); } + + /// Returns true if the specified block can be pulled by a sticky piston + static inline bool CanPull(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) + { + switch (a_BlockType) + { + case E_BLOCK_LAVA: + case E_BLOCK_STATIONARY_LAVA: + case E_BLOCK_STATIONARY_WATER: + case E_BLOCK_WATER: + { + return false; + } + } + + if (CanBreakPush(a_BlockType)) + { + return false; // CanBreakPush returns true, but we need false to prevent pulling + } + + return CanPush(a_BlockType, a_BlockMeta); + } + + /// Returns how many blocks the piston has to push (where the first free space is); < 0 when unpushable + static int FirstPassthroughBlock(int a_PistonX, int a_PistonY, int a_PistonZ, NIBBLETYPE a_PistonMeta, cWorld * a_World); } ; @@ -40,7 +172,7 @@ public: virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override { // No pickups - // Also with 1.7, the item forms of these tecnical blocks have been removed, so giving someone this will crash their client... + // Also with 1.7, the item forms of these technical blocks have been removed, so giving someone this will crash their client... } } ; |