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authormadmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-09-24 00:09:57 +0200
committermadmaxoft@gmail.com <madmaxoft@gmail.com@0a769ca7-a7f5-676a-18bf-c427514a06d6>2012-09-24 00:09:57 +0200
commitecfe6ab65bd1fc2c7f5733fe6ef4e6ddaac44a26 (patch)
tree898e37fe747f0fdcefeb88f833557fd45db3347c /source/Piston.cpp
parentSource files cleanup: ChunkDataSerializer is Protocol-related (diff)
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Diffstat (limited to 'source/Piston.cpp')
-rw-r--r--source/Piston.cpp152
1 files changed, 152 insertions, 0 deletions
diff --git a/source/Piston.cpp b/source/Piston.cpp
new file mode 100644
index 000000000..a4c014729
--- /dev/null
+++ b/source/Piston.cpp
@@ -0,0 +1,152 @@
+
+#include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules
+
+#include "Piston.h"
+#include "Redstone.h"
+#include "ChunkDef.h"
+#include "Pickup.h"
+#include "Item.h"
+#include "Root.h"
+#include "ClientHandle.h"
+#include "World.h"
+#include "BlockID.h"
+#include "Server.h"
+#include "blocks/BlockHandler.h"
+
+extern bool g_BlockPistonBreakable[];
+
+#define AddDir( x, y, z, dir, amount ) switch(dir) { case 0: (y)-=(amount); break; case 1: (y)+=(amount); break;\
+ case 2: (z)-=(amount); break; case 3: (z)+=(amount); break;\
+ case 4: (x)-=(amount); break; case 5: (x)+=(amount); break; }
+
+
+
+
+
+cPiston::cPiston( cWorld* a_World )
+ :m_World ( a_World )
+{
+
+}
+
+unsigned short cPiston::FirstPassthroughBlock( int pistonX, int pistonY, int pistonZ, char pistonmeta ) {
+ unsigned short ret;
+ pistonmeta &= 7;
+ if(pistonmeta >= 6) { // just in case, it shouldn't happen but if it would, it'd case inf loop
+ printf("cPiston::FirstPassthroughBlock - piston has invalid meta data!\n");
+ return 9001;
+ }
+ char currBlock;
+ for( ret = 0; ret < 24; ret++ ) { // push up to 24 blocks
+ AddDir( pistonX, pistonY, pistonZ, pistonmeta, 1 )
+ currBlock = m_World->GetBlock( pistonX, pistonY, pistonZ );
+ if(currBlock == E_BLOCK_BEDROCK || currBlock == E_BLOCK_OBSIDIAN || currBlock == E_BLOCK_PISTON_EXTENSION ) {return 9001;}
+ if(g_BlockPistonBreakable[currBlock]) {return ret;}
+ }
+ return 9001;
+}
+
+
+
+
+
+void cPiston::ExtendPiston( int pistx, int pisty, int pistz )
+{
+ char pistonBlock = m_World->GetBlock( pistx, pisty, pistz );
+ char pistonMeta = m_World->GetBlockMeta( pistx, pisty, pistz );
+ char isSticky = (char)(pistonBlock == E_BLOCK_STICKY_PISTON) * 8;
+ bool recalc = false;
+ if ( (pistonMeta & 0x8) == 0x0 ) // only extend if piston is not already extended
+ {
+ unsigned short dist = FirstPassthroughBlock(pistx, pisty, pistz, pistonMeta);
+ if (dist > 9000) return; // too many blocks
+
+ AddDir( pistx, pisty, pistz, pistonMeta & 7, dist+1 )
+ BLOCKTYPE currBlock = m_World->GetBlock (pistx, pisty, pistz);
+ NIBBLETYPE currMeta = m_World->GetBlockMeta(pistx, pisty, pistz);
+ if (currBlock != E_BLOCK_AIR)
+ {
+ cBlockHandler * Handler = BlockHandler(currBlock);
+ if(Handler->DropOnUnsuitable())
+ {
+ Handler->DropBlock(m_World, pistx, pisty, pistz);
+ }
+ recalc = true;
+ }
+ int oldx = pistx, oldy = pisty, oldz = pistz;
+ char currBlockMeta;
+ for (int i = dist + 1; i>0; i--)
+ {
+ AddDir(pistx, pisty, pistz, pistonMeta & 7, -1)
+ currBlock = m_World->GetBlock(pistx, pisty, pistz);
+ currBlockMeta = m_World->GetBlockMeta(pistx, pisty, pistz);
+ m_World->SetBlock( oldx, oldy, oldz, currBlock, currBlockMeta);
+ oldx = pistx;
+ oldy = pisty;
+ oldz = pistz;
+ }
+ m_World->BroadcastBlockAction(pistx, pisty, pistz, 0, pistonMeta, E_BLOCK_PISTON);
+ m_World->FastSetBlock( pistx, pisty, pistz, pistonBlock, pistonMeta | 0x8 );
+
+ int extx = pistx;
+ int exty = pisty;
+ int extz = pistz;
+
+ AddDir(extx, exty, extz, pistonMeta & 7, 1)
+
+ m_World->SetBlock(extx, exty, extz, E_BLOCK_PISTON_EXTENSION, isSticky + pistonMeta & 7);
+
+ if (recalc)
+ {
+ cRedstone Redstone(m_World);
+ Redstone.ChangeRedstone(extx, exty, extz, false); // recalculate redstone around current device
+ Redstone.ChangeRedstone(pistx, pisty, pistz, false); // recalculate redstone around current device
+ }
+ }
+}
+
+
+
+
+
+void cPiston::RetractPiston( int pistx, int pisty, int pistz )
+{
+ char pistonBlock = m_World->GetBlock( pistx, pisty, pistz );
+ char pistonMeta = m_World->GetBlockMeta( pistx, pisty, pistz );
+ if (pistonMeta <= 6) // only retract if piston is not already retracted
+ {
+ return;
+ }
+ m_World->BroadcastBlockAction(pistx, pisty, pistz, 1, pistonMeta & ~(8), E_BLOCK_PISTON);
+ m_World->FastSetBlock(pistx, pisty, pistz, pistonBlock, pistonMeta & ~(8));
+
+ AddDir(pistx, pisty, pistz, pistonMeta & 7, 1)
+ if (m_World->GetBlock(pistx, pisty, pistz) == E_BLOCK_PISTON_EXTENSION)
+ {
+ if (pistonBlock == E_BLOCK_STICKY_PISTON)
+ {
+ int tempx = pistx, tempy = pisty, tempz = pistz;
+ AddDir( tempx, tempy, tempz, pistonMeta & 7, 1 )
+ char tempblock = m_World->GetBlock( tempx, tempy, tempz );
+ if (
+ (tempblock == E_BLOCK_OBSIDIAN) ||
+ (tempblock == E_BLOCK_BEDROCK) ||
+ (tempblock == E_BLOCK_PISTON_EXTENSION)
+ )
+ {
+ // These cannot be moved by the sticky piston, bail out
+ return;
+ }
+ m_World->SetBlock( pistx, pisty, pistz, tempblock, m_World->GetBlockMeta( tempx, tempy, tempz ) );
+ m_World->SetBlock( tempx, tempy, tempz, E_BLOCK_AIR, 0 );
+ }
+ else
+ {
+ m_World->SetBlock( pistx, pisty, pistz, E_BLOCK_AIR, 0 );
+ }
+ }
+}
+
+
+
+