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author | madmaxoft <github@xoft.cz> | 2014-06-14 12:06:48 +0200 |
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committer | madmaxoft <github@xoft.cz> | 2014-06-14 12:06:48 +0200 |
commit | f8f7748a09b936cc888c0c4a1f0ae9e9e444ba5b (patch) | |
tree | d2f3e35f37821e93d92143db2055bcedeaf57142 /src/Blocks/BlockPiston.cpp | |
parent | Player.h: Moved doxy-comments to Entity.h (diff) | |
parent | Fixed a repeater issue (diff) | |
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Diffstat (limited to 'src/Blocks/BlockPiston.cpp')
-rw-r--r-- | src/Blocks/BlockPiston.cpp | 177 |
1 files changed, 172 insertions, 5 deletions
diff --git a/src/Blocks/BlockPiston.cpp b/src/Blocks/BlockPiston.cpp index 542eb33b5..faf639312 100644 --- a/src/Blocks/BlockPiston.cpp +++ b/src/Blocks/BlockPiston.cpp @@ -4,14 +4,14 @@ #include "../Item.h" #include "../World.h" #include "../Entities/Player.h" -#include "../Piston.h" +#include "BlockInServerPluginInterface.h" #define AddPistonDir(x, y, z, dir, amount) \ - switch (dir) \ + switch (dir & 0x07) \ { \ case 0: (y) -= (amount); break; \ case 1: (y) += (amount); break; \ @@ -19,8 +19,16 @@ case 3: (z) += (amount); break; \ case 4: (x) -= (amount); break; \ case 5: (x) += (amount); break; \ + default: \ + { \ + LOGWARNING("%s: invalid direction %d, ignoring", __FUNCTION__, dir & 0x07); \ + break; \ + } \ } +#define PISTON_TICK_DELAY 1 +#define PISTON_MAX_PUSH_DISTANCE 12 + @@ -40,7 +48,7 @@ void cBlockPistonHandler::OnDestroyed(cChunkInterface & a_ChunkInterface, cWorld int newX = a_BlockX; int newY = a_BlockY; int newZ = a_BlockZ; - AddPistonDir(newX, newY, newZ, OldMeta & ~(8), 1); + AddPistonDir(newX, newY, newZ, OldMeta, 1); if (a_ChunkInterface.GetBlock(newX, newY, newZ) == E_BLOCK_PISTON_EXTENSION) { @@ -60,7 +68,7 @@ bool cBlockPistonHandler::GetPlacementBlockTypeMeta( ) { a_BlockType = m_BlockType; - a_BlockMeta = cPiston::RotationPitchToMetaData(a_Player->GetYaw(), a_Player->GetPitch()); + a_BlockMeta = RotationPitchToMetaData(a_Player->GetYaw(), a_Player->GetPitch()); return true; } @@ -68,6 +76,165 @@ bool cBlockPistonHandler::GetPlacementBlockTypeMeta( +int cBlockPistonHandler::FirstPassthroughBlock(int a_PistonX, int a_PistonY, int a_PistonZ, NIBBLETYPE pistonmeta, cWorld * a_World) +{ + // Examine each of the 12 blocks ahead of the piston: + for (int ret = 0; ret < PISTON_MAX_PUSH_DISTANCE; ret++) + { + BLOCKTYPE currBlock; + NIBBLETYPE currMeta; + AddPistonDir(a_PistonX, a_PistonY, a_PistonZ, pistonmeta, 1); + a_World->GetBlockTypeMeta(a_PistonX, a_PistonY, a_PistonZ, currBlock, currMeta); + if (CanBreakPush(currBlock)) + { + // This block breaks when pushed, extend up to here + return ret; + } + if (!CanPush(currBlock, currMeta)) + { + // This block cannot be pushed at all, the piston can't extend + return -1; + } + } + // There is no space for the blocks to move, piston can't extend + return -1; +} + + + + + +void cBlockPistonHandler::ExtendPiston(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World) +{ + BLOCKTYPE pistonBlock; + NIBBLETYPE pistonMeta; + a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta); + + if (IsExtended(pistonMeta)) + { + // Already extended, bail out + return; + } + + int dist = FirstPassthroughBlock(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, a_World); + if (dist < 0) + { + // FirstPassthroughBlock says piston can't push anything, bail out + return; + } + + a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 0, pistonMeta, pistonBlock); + a_World->BroadcastSoundEffect("tile.piston.out", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, 0.7f); + + // Drop the breakable block in the line, if appropriate: + AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, dist + 1); // "a_Block" now at the breakable / empty block + BLOCKTYPE currBlock; + NIBBLETYPE currMeta; + a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, currBlock, currMeta); + if (currBlock != E_BLOCK_AIR) + { + cBlockHandler * Handler = BlockHandler(currBlock); + if (Handler->DoesDropOnUnsuitable()) + { + cChunkInterface ChunkInterface(a_World->GetChunkMap()); + cBlockInServerPluginInterface PluginInterface(*a_World); + Handler->DropBlock(ChunkInterface, *a_World, PluginInterface, NULL, a_BlockX, a_BlockY, a_BlockZ); + } + } + + // Push blocks, from the furthest to the nearest: + int oldx = a_BlockX, oldy = a_BlockY, oldz = a_BlockZ; + NIBBLETYPE currBlockMeta; + std::vector<Vector3i> ScheduledBlocks; + ScheduledBlocks.reserve(PISTON_MAX_PUSH_DISTANCE); + + for (int i = dist + 1; i > 1; i--) + { + AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1); + a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, currBlock, currBlockMeta); + a_World->SetBlock(oldx, oldy, oldz, currBlock, currBlockMeta, false); + ScheduledBlocks.push_back(Vector3i(oldx, oldy, oldz)); + oldx = a_BlockX; + oldy = a_BlockY; + oldz = a_BlockZ; + } + + int extx = a_BlockX; + int exty = a_BlockY; + int extz = a_BlockZ; + ScheduledBlocks.push_back(Vector3i(extx, exty, extz)); + AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1); + // "a_Block" now at piston body, "ext" at future extension + + a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta | 0x8); + a_World->SetBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, pistonMeta | (IsSticky(pistonBlock) ? 8 : 0), false); + a_World->ScheduleTask(PISTON_TICK_DELAY, new cWorld::cTaskSendBlockToAllPlayers(ScheduledBlocks)); +} + + + + + +void cBlockPistonHandler::RetractPiston(int a_BlockX, int a_BlockY, int a_BlockZ, cWorld * a_World) +{ + BLOCKTYPE pistonBlock; + NIBBLETYPE pistonMeta; + a_World->GetBlockTypeMeta(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta); + + if (!IsExtended(pistonMeta)) + { + // Already retracted, bail out + return; + } + + // Check the extension: + AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1); + if (a_World->GetBlock(a_BlockX, a_BlockY, a_BlockZ) != E_BLOCK_PISTON_EXTENSION) + { + LOGD("%s: Piston without an extension - still extending, or just in an invalid state?", __FUNCTION__); + return; + } + + AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, -1); + a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, pistonBlock, pistonMeta & ~(8)); + a_World->BroadcastBlockAction(a_BlockX, a_BlockY, a_BlockZ, 1, pistonMeta & ~(8), pistonBlock); + a_World->BroadcastSoundEffect("tile.piston.in", a_BlockX * 8, a_BlockY * 8, a_BlockZ * 8, 0.5f, 0.7f); + AddPistonDir(a_BlockX, a_BlockY, a_BlockZ, pistonMeta, 1); + + // Retract the extension, pull block if appropriate + if (IsSticky(pistonBlock)) + { + int tempx = a_BlockX, tempy = a_BlockY, tempz = a_BlockZ; + AddPistonDir(tempx, tempy, tempz, pistonMeta, 1); + BLOCKTYPE tempBlock; + NIBBLETYPE tempMeta; + a_World->GetBlockTypeMeta(tempx, tempy, tempz, tempBlock, tempMeta); + if (CanPull(tempBlock, tempMeta)) + { + // Pull the block + a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, tempBlock, tempMeta, false); + a_World->SetBlock(tempx, tempy, tempz, E_BLOCK_AIR, 0, false); + + std::vector<Vector3i> ScheduledBlocks; + ScheduledBlocks.push_back(Vector3i(a_BlockX, a_BlockY, a_BlockZ)); + ScheduledBlocks.push_back(Vector3i(tempx, tempy, tempz)); + a_World->ScheduleTask(PISTON_TICK_DELAY + 1, new cWorld::cTaskSendBlockToAllPlayers(ScheduledBlocks)); + return; + } + } + + // Retract without pulling + a_World->SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_AIR, 0, false); + + std::vector<Vector3i> ScheduledBlocks; + ScheduledBlocks.push_back(Vector3i(a_BlockX, a_BlockY, a_BlockZ)); + a_World->ScheduleTask(PISTON_TICK_DELAY + 1, new cWorld::cTaskSendBlockToAllPlayers(ScheduledBlocks)); +} + + + + + /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // cBlockPistonHeadHandler: @@ -87,7 +254,7 @@ void cBlockPistonHeadHandler::OnDestroyedByPlayer(cChunkInterface & a_ChunkInter int newX = a_BlockX; int newY = a_BlockY; int newZ = a_BlockZ; - AddPistonDir(newX, newY, newZ, OldMeta & ~(8), -1); + AddPistonDir(newX, newY, newZ, OldMeta, -1); BLOCKTYPE Block = a_ChunkInterface.GetBlock(newX, newY, newZ); if ((Block == E_BLOCK_STICKY_PISTON) || (Block == E_BLOCK_PISTON)) |