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- Blood: Create high-precision Sinf() and Cosf() inlines and use for player's horizon, using calcSinTableValue() from the backend, bypassing game's costable[].

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This commit is contained in:
Mitchell Richters 2020-09-16 12:31:32 +10:00
parent c38c1cb1f1
commit 547bf110b2
3 changed files with 14 additions and 4 deletions
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10
source/blood/src/misc.h
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@ -90,6 +90,16 @@ inline int Cos(int ang)
return costable[ang & 2047];
}
inline double Sinf(double ang)
{
return (1 << 30) * sin(BANG2RAD * ang);
}
inline double Cosf(double ang)
{
return (1 << 30) * sin(BANG2RAD * (ang + 512.));
}
inline int SinScale16(int ang)
{
return FixedToInt(costable[(ang - 512) & 2047]);

4
source/blood/src/player.cpp
View file

@ -1558,9 +1558,9 @@ void ProcessInput(PLAYER *pPlayer)
}
pPlayer->q16look = clamp(pPlayer->q16look+pInput->q16horz, IntToFixed(-60), IntToFixed(60));
if (pPlayer->q16look > 0)
pPlayer->q16horiz = IntToFixed(mulscale30(120, Sin(FixedToInt(pPlayer->q16look)<<3)));
pPlayer->q16horiz = FloatToFixed(fmulscale30(120., Sinf(FixedToFloat(pPlayer->q16look) * 8.)));
else if (pPlayer->q16look < 0)
pPlayer->q16horiz = IntToFixed(mulscale30(180, Sin(FixedToInt(pPlayer->q16look)<<3)));
pPlayer->q16horiz = FloatToFixed(fmulscale30(180., Sinf(FixedToFloat(pPlayer->q16look) * 8.)));
else
pPlayer->q16horiz = 0;
int nSector = pSprite->sectnum;

4
source/blood/src/prediction.cpp
View file

@ -232,9 +232,9 @@ static void fakeProcessInput(PLAYER *pPlayer, InputPacket *pInput)
predict.at20 = clamp(predict.at20+pInput->q16horz, IntToFixed(-60), IntToFixed(60));
if (predict.at20 > 0)
predict.at24 = mulscale30(IntToFixed(120), Sin(FixedToInt(predict.at20<<3)));
predict.at24 = FloatToFixed(fmulscale30(120., Sinf(FixedToFloat(predict.at20) * 8.)));
else if (predict.at20 < 0)
predict.at24 = mulscale30(IntToFixed(180), Sin(FixedToInt(predict.at20<<3)));
predict.at24 = FloatToFixed(fmulscale30(180., Sinf(FixedToFloat(predict.at20) * 8.)));
else
predict.at24 = 0;