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Add gethiq16angle and the getq16angle wrapper to the engine

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NY00123 2020-04-17 16:21:22 +03:00 committed by Christoph Oelckers
parent e2a789b8cc
commit 6fcb8f7a6a
2 changed files with 27 additions and 0 deletions
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6
source/build/include/build.h
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@ -935,6 +935,12 @@ int32_t krand(void);
int32_t ksqrt(uint32_t num);
int32_t LUNATIC_FASTCALL getangle(int32_t xvect, int32_t yvect);
fix16_t LUNATIC_FASTCALL gethiq16angle(int32_t xvect, int32_t yvect);
static FORCE_INLINE fix16_t LUNATIC_FASTCALL getq16angle(int32_t xvect, int32_t yvect)
{
return fix16_from_int(getangle(xvect, yvect));
}
static FORCE_INLINE CONSTEXPR uint32_t uhypsq(int32_t const dx, int32_t const dy)
{

21
source/build/src/engine.cpp
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@ -4023,6 +4023,27 @@ int32_t LUNATIC_FASTCALL getangle(int32_t xvect, int32_t yvect)
return rv;
}
fix16_t LUNATIC_FASTCALL gethiq16angle(int32_t xvect, int32_t yvect)
{
fix16_t rv;
if ((xvect | yvect) == 0)
rv = 0;
else if (xvect == 0)
rv = fix16_from_int(512 + ((yvect < 0) << 10));
else if (yvect == 0)
rv = fix16_from_int(((xvect < 0) << 10));
else if (xvect == yvect)
rv = fix16_from_int(256 + ((xvect < 0) << 10));
else if (xvect == -yvect)
rv = fix16_from_int(768 + ((xvect > 0) << 10));
else if (klabs(xvect) > klabs(yvect))
rv = ((qradarang[5120 + scale(1280, yvect, xvect)] >> 6) + fix16_from_int(((xvect < 0) << 10))) & 0x7FFFFFF;
else rv = ((qradarang[5120 - scale(1280, xvect, yvect)] >> 6) + fix16_from_int(512 + ((yvect < 0) << 10))) & 0x7FFFFFF;
return rv;
}
//
// ksqrt
//