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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:19:41 +0100
commit675b4aa878f16291ce33fced48a2bc7425f635ae (patch)
tree409914df27a98f65adf866da669429c4de141b6f /src/Piston.h
parentLineBlockTracer: Using the coord-based block faces. (diff)
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Diffstat (limited to 'src/Piston.h')
-rw-r--r--src/Piston.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/src/Piston.h b/src/Piston.h
new file mode 100644
index 000000000..cc051e454
--- /dev/null
+++ b/src/Piston.h
@@ -0,0 +1,94 @@
+
+#pragma once
+
+
+
+
+
+// fwd: World.h
+class cWorld;
+
+
+
+
+
+class cPiston
+{
+public:
+
+ cPiston(cWorld * a_World);
+
+ 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;
+ }
+ }
+ }
+
+ void ExtendPiston( int, int, int );
+ void RetractPiston( int, int, int );
+
+ /// Returns true if the piston (specified by blocktype) is a sticky piston
+ static bool IsSticky(BLOCKTYPE a_BlockType);
+
+ /// Returns true if the piston (with the specified meta) is extended
+ static bool IsExtended(NIBBLETYPE a_PistonMeta);
+
+ /// Returns true if the extension (with the specified meta) is sticky
+ static bool IsStickyExtension(NIBBLETYPE a_ExtMeta);
+
+ /// Returns true if the specified block can be pushed by a piston (and left intact)
+ static bool CanPush(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+
+ /// Returns true if the specified block can be pushed by a piston and broken / replaced
+ static bool CanBreakPush(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+
+ /// Returns true if the specified block can be pulled by a sticky piston
+ static bool CanPull(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
+
+ /// Updates the coords by the specified amount in the direction a piston of the specified meta is facing
+ static void AddDir(int & a_BlockX, int & a_BlockY, int & a_BlockZ, NIBBLETYPE a_PistonMeta, int a_Amount);
+
+
+ cWorld * m_World;
+
+private:
+ void ChainMove( int, int, int, char, unsigned short * );
+
+ /// Returns how many blocks the piston has to push (where the first free space is); <0 when unpushable
+ int FirstPassthroughBlock(int a_PistonX, int a_PistonY, int a_PistonZ, NIBBLETYPE a_PistonMeta);
+} ;
+
+
+
+