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-rw-r--r--src/Blocks/BlockRail.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/src/Blocks/BlockRail.h b/src/Blocks/BlockRail.h
index 07e9814cd..f56ec7152 100644
--- a/src/Blocks/BlockRail.h
+++ b/src/Blocks/BlockRail.h
@@ -434,6 +434,141 @@ public:
}
return true;
}
+
+
+ virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override
+ {
+ // Bit 0x08 is a flag when a_Meta is in the range 0x00--0x05 and 0x0A--0x0F.
+ // Bit 0x08 specifies direction when a_Meta is in the range 0x06-0x09.
+ if ((a_Meta < 0x06) || (a_Meta > 0x09))
+ {
+ // Save powered rail flag.
+ NIBBLETYPE OtherMeta = a_Meta & 0x08;
+ // Rotates according to table; 0x07 == 0111.
+ // Rails can either be flat (North/South) or Ascending (Asc. East)
+ switch (a_Meta & 0x07)
+ {
+ case 0x00: return 0x01 + OtherMeta; // North/South -> East/West
+ case 0x01: return 0x00 + OtherMeta; // East/West -> North/South
+
+ case 0x02: return 0x04 + OtherMeta; // Asc. East -> Asc. North
+ case 0x04: return 0x03 + OtherMeta; // Asc. North -> Asc. West
+ case 0x03: return 0x05 + OtherMeta; // Asc. West -> Asc. South
+ case 0x05: return 0x02 + OtherMeta; // Asc. South -> Asc. East
+ }
+ }
+ else
+ {
+ switch (a_Meta)
+ {
+ // Corner Directions
+ case 0x06: return 0x09; // Northwest Cnr. -> Southwest Cnr.
+ case 0x07: return 0x06; // Northeast Cnr. -> Northwest Cnr.
+ case 0x08: return 0x07; // Southeast Cnr. -> Northeast Cnr.
+ case 0x09: return 0x08; // Southwest Cnr. -> Southeast Cnr.
+ }
+ }
+ // To avoid a compiler warning;
+ return a_Meta;
+ }
+
+
+ virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) override
+ {
+ // Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
+ if ((a_Meta < 0x06) || (a_Meta > 0x09))
+ {
+ // Save powered rail flag.
+ NIBBLETYPE OtherMeta = a_Meta & 0x08;
+ // Rotates according to table; 0x07 == 0111.
+ // Rails can either be flat (North/South) or Ascending (Asc. East)
+ switch (a_Meta & 0x07)
+ {
+ case 0x00: return 0x01 + OtherMeta; // North/South -> East/West
+ case 0x01: return 0x00 + OtherMeta; // East/West -> North/South
+
+ case 0x02: return 0x05 + OtherMeta; // Asc. East -> Asc. South
+ case 0x05: return 0x03 + OtherMeta; // Asc. South -> Asc. West
+ case 0x03: return 0x04 + OtherMeta; // Asc. West -> Asc. North
+ case 0x04: return 0x02 + OtherMeta; // Asc. North -> Asc. East
+ }
+ }
+ else
+ {
+ switch (a_Meta)
+ {
+ // Corner Directions
+ case 0x06: return 0x07; // Northwest Cnr. -> Northeast Cnr.
+ case 0x07: return 0x08; // Northeast Cnr. -> Southeast Cnr.
+ case 0x08: return 0x09; // Southeast Cnr. -> Southwest Cnr.
+ case 0x09: return 0x06; // Southwest Cnr. -> Northwest Cnr.
+ }
+ }
+ // To avoid a compiler warning;
+ return a_Meta;
+ }
+
+
+ virtual NIBBLETYPE MetaMirrorXY(NIBBLETYPE a_Meta) override
+ {
+ // Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
+ if ((a_Meta < 0x06) || (a_Meta > 0x09))
+ {
+ // Save powered rail flag.
+ NIBBLETYPE OtherMeta = a_Meta & 0x08;
+ // Mirrors according to table; 0x07 == 0111.
+ // Rails can either be flat (North/South) or Ascending (Asc. East)
+ switch (a_Meta & 0x07)
+ {
+ case 0x05: return 0x04 + OtherMeta; // Asc. South -> Asc. North
+ case 0x04: return 0x05 + OtherMeta; // Asc. North -> Asc. South
+ }
+ }
+ else
+ {
+ switch (a_Meta)
+ {
+ // Corner Directions
+ case 0x06: return 0x09; // Northwest Cnr. -> Southwest Cnr.
+ case 0x07: return 0x08; // Northeast Cnr. -> Southeast Cnr.
+ case 0x08: return 0x07; // Southeast Cnr. -> Northeast Cnr.
+ case 0x09: return 0x06; // Southwest Cnr. -> Northwest Cnr.
+ }
+ }
+ // To avoid a compiler warning;
+ return a_Meta;
+ }
+
+
+ virtual NIBBLETYPE MetaMirrorYZ(NIBBLETYPE a_Meta) override
+ {
+ // Bit 0x08 is a flag for value in the range 0x00--0x05 and specifies direction for values withint 0x006--0x09.
+ if ((a_Meta < 0x06) || (a_Meta > 0x09))
+ {
+ // Save powered rail flag.
+ NIBBLETYPE OtherMeta = a_Meta & 0x08;
+ // Mirrors according to table; 0x07 == 0111.
+ // Rails can either be flat (North/South) or Ascending (Asc. East)
+ switch (a_Meta & 0x07)
+ {
+ case 0x02: return 0x03 + OtherMeta; // Asc. East -> Asc. West
+ case 0x03: return 0x02 + OtherMeta; // Asc. West -> Asc. East
+ }
+ }
+ else
+ {
+ switch (a_Meta)
+ {
+ // Corner Directions
+ case 0x06: return 0x07; // Northwest Cnr. -> Northeast Cnr.
+ case 0x07: return 0x06; // Northeast Cnr. -> Northwest Cnr.
+ case 0x08: return 0x09; // Southeast Cnr. -> Southwest Cnr.
+ case 0x09: return 0x08; // Southwest Cnr. -> Southeast Cnr.
+ }
+ }
+ // To avoid a compiler warning;
+ return a_Meta;
+ }
} ;