96 lines
1.7 KiB
C++
96 lines
1.7 KiB
C++
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/*************************/
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/*** Math Table Header ***/
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/*************************/
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#ifndef __MATHTABLE_HEADER__
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#define __MATHTABLE_HEADER__
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#ifndef _GLOBAL_HEADER_
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#include "system\global.h"
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#endif
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/*****************************************************************************/
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extern VECTOR upVec;
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extern const s16 ACosTable[4097];
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extern const s16 SinTable[1024];
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extern const s32 OneSinTable[1024];
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/*****************************************************************************/
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inline s32 macos(const s32 &a)
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{
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return(ACosTable[a>>1]);
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}
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/*****************************************************************************/
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inline s32 msin(const s32 &a)
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{
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if (a>3071)
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{
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return(-SinTable[1023 - (a&1023)]);
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} else
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if (a>2047)
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{
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return(-SinTable[a&1023]);
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} else
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if (a>1023)
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{
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return(SinTable[1023 - (a&1023)]);
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} else
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{
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return(SinTable[a]);
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}
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}
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/*****************************************************************************/
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inline s32 mcos(const s32 &a)
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{
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if (a>3071)
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{
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return(SinTable[(a&1023)]);
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} else
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if (a>2047)
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{
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return(-SinTable[1023 - (a&1023)]);
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} else
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if (a>1023)
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{
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return(-SinTable[a&1023]);
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} else
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{
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return(SinTable[1023 - a]);
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}
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}
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/*****************************************************************************/
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inline s32 monesin(const s32 &a)
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{
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if (a>3071)
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{
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return(-OneSinTable[1024 - (a&1023)]);
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} else
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if (a>2047)
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{
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return(-OneSinTable[a&1023]);
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} else
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if (a>1023)
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{
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return(OneSinTable[1024 - (a&1023)]);
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} else
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{
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return(OneSinTable[a]);
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}
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}
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/*****************************************************************************/
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/*
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#define msin(x) rsin((x))
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#define mcos(x) rcos((x))
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#define monesin(x) (((s32)4096<<12)/rsin((x)))
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*/
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#endif
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