From e1285eb84f357c3111f5c7382c94bccc7068c660 Mon Sep 17 00:00:00 2001 From: narroo Date: Tue, 25 Mar 2014 17:17:05 -0400 Subject: Changed Rotater to Rotator. Added partial sign post rotation support. --- src/Blocks/MetaRotator.h | 120 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+) create mode 100644 src/Blocks/MetaRotator.h (limited to 'src/Blocks/MetaRotator.h') diff --git a/src/Blocks/MetaRotator.h b/src/Blocks/MetaRotator.h new file mode 100644 index 000000000..dde88e6db --- /dev/null +++ b/src/Blocks/MetaRotator.h @@ -0,0 +1,120 @@ +// MetaRotater.h + +// Provides a mixin for rotations and reflections + +#pragma once + +// MSVC generates warnings for the templated AssertIfNotMatched parameter conditions, so disable it: +#ifdef _MSC_VER + #pragma warning(disable: 4127) // Conditional expression is constant +#endif + + + + + +/* +Provides a mixin for rotations and reflections following the standard pattern of apply mask then use case. + +Usage: +Inherit from this class providing your base class as Base, the BitMask for the direction bits in bitmask and the masked value for the directions in North, East, South, West. There is also an aptional parameter AssertIfNotMatched. Set this if it is invalid for a block to exist in any other state. +*/ + +template +class cMetaRotater : public Base +{ +public: + + cMetaRotater(BLOCKTYPE a_BlockType) : + Base(a_BlockType) + {} + + virtual ~cMetaRotater() {} + + virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override; + virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) override; + virtual NIBBLETYPE MetaMirrorXY(NIBBLETYPE a_Meta) override; + virtual NIBBLETYPE MetaMirrorYZ(NIBBLETYPE a_Meta) override; +}; + + + + + +template +NIBBLETYPE cMetaRotater::MetaRotateCW(NIBBLETYPE a_Meta) +{ + NIBBLETYPE OtherMeta = a_Meta & (~BitMask); + switch (a_Meta & BitMask) + { + case South: return West | OtherMeta; + case West: return North | OtherMeta; + case North: return East | OtherMeta; + case East: return South | OtherMeta; + } + if (AssertIfNotMatched) + { + ASSERT(!"Invalid Meta value"); + } + return a_Meta; +} + + + + + +template +NIBBLETYPE cMetaRotater::MetaRotateCCW(NIBBLETYPE a_Meta) +{ + NIBBLETYPE OtherMeta = a_Meta & (~BitMask); + switch (a_Meta & BitMask) + { + case South: return East | OtherMeta; + case East: return North | OtherMeta; + case North: return West | OtherMeta; + case West: return South | OtherMeta; + } + if (AssertIfNotMatched) + { + ASSERT(!"Invalid Meta value"); + } + return a_Meta; +} + + + + + +template +NIBBLETYPE cMetaRotater::MetaMirrorXY(NIBBLETYPE a_Meta) +{ + NIBBLETYPE OtherMeta = a_Meta & (~BitMask); + switch (a_Meta & BitMask) + { + case South: return North | OtherMeta; + case North: return South | OtherMeta; + } + // Not Facing North or South; No change. + return a_Meta; +} + + + + + +template +NIBBLETYPE cMetaRotater::MetaMirrorYZ(NIBBLETYPE a_Meta) +{ + NIBBLETYPE OtherMeta = a_Meta & (~BitMask); + switch (a_Meta & BitMask) + { + case West: return East | OtherMeta; + case East: return West | OtherMeta; + } + // Not Facing East or West; No change. + return a_Meta; +} + + + + -- cgit v1.2.3 From 3df4f8609dc2e28c2328ddf448fa53f5483f4262 Mon Sep 17 00:00:00 2001 From: narroo Date: Tue, 25 Mar 2014 17:26:13 -0400 Subject: Fixed spelling; Rotater to Rotator. --- src/Blocks/MetaRotator.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'src/Blocks/MetaRotator.h') diff --git a/src/Blocks/MetaRotator.h b/src/Blocks/MetaRotator.h index dde88e6db..899c583e1 100644 --- a/src/Blocks/MetaRotator.h +++ b/src/Blocks/MetaRotator.h @@ -1,4 +1,4 @@ -// MetaRotater.h +// MetaRotator.h // Provides a mixin for rotations and reflections @@ -21,15 +21,15 @@ Inherit from this class providing your base class as Base, the BitMask for the d */ template -class cMetaRotater : public Base +class cMetaRotator : public Base { public: - cMetaRotater(BLOCKTYPE a_BlockType) : + cMetaRotator(BLOCKTYPE a_BlockType) : Base(a_BlockType) {} - virtual ~cMetaRotater() {} + virtual ~cMetaRotator() {} virtual NIBBLETYPE MetaRotateCCW(NIBBLETYPE a_Meta) override; virtual NIBBLETYPE MetaRotateCW(NIBBLETYPE a_Meta) override; @@ -42,7 +42,7 @@ public: template -NIBBLETYPE cMetaRotater::MetaRotateCW(NIBBLETYPE a_Meta) +NIBBLETYPE cMetaRotator::MetaRotateCW(NIBBLETYPE a_Meta) { NIBBLETYPE OtherMeta = a_Meta & (~BitMask); switch (a_Meta & BitMask) @@ -64,7 +64,7 @@ NIBBLETYPE cMetaRotater -NIBBLETYPE cMetaRotater::MetaRotateCCW(NIBBLETYPE a_Meta) +NIBBLETYPE cMetaRotator::MetaRotateCCW(NIBBLETYPE a_Meta) { NIBBLETYPE OtherMeta = a_Meta & (~BitMask); switch (a_Meta & BitMask) @@ -86,7 +86,7 @@ NIBBLETYPE cMetaRotater -NIBBLETYPE cMetaRotater::MetaMirrorXY(NIBBLETYPE a_Meta) +NIBBLETYPE cMetaRotator::MetaMirrorXY(NIBBLETYPE a_Meta) { NIBBLETYPE OtherMeta = a_Meta & (~BitMask); switch (a_Meta & BitMask) @@ -103,7 +103,7 @@ NIBBLETYPE cMetaRotater -NIBBLETYPE cMetaRotater::MetaMirrorYZ(NIBBLETYPE a_Meta) +NIBBLETYPE cMetaRotator::MetaMirrorYZ(NIBBLETYPE a_Meta) { NIBBLETYPE OtherMeta = a_Meta & (~BitMask); switch (a_Meta & BitMask) -- cgit v1.2.3