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- sprite rotation angle math

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This commit is contained in:
Christoph Oelckers 2022-09-10 21:07:26 +02:00
parent 18ade5e9bd
commit 31fcdd9e41
1 changed files with 4 additions and 5 deletions
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9
source/games/exhumed/src/sequence.cpp
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@ -479,9 +479,9 @@ int seq_GetSeqPicnum(int16_t nSeq, int16_t edx, int16_t ebx)
int seq_PlotArrowSequence(int nSprite, int16_t nSeq, int nVal)
{
tspritetype* pTSprite = mytspriteArray->get(nSprite);
int nAngle = getangle(nCamerapos.XY() - pTSprite->pos.XY());
DAngle nAngle = VecToAngle(nCamerapos.XY() - pTSprite->pos.XY());
int nSeqOffset = ((((pTSprite->int_ang() + 512) - nAngle) + 128) & kAngleMask) >> 8;
int nSeqOffset = (((pTSprite->angle + DAngle90 + DAngle22_5 - nAngle).Buildang()) & kAngleMask) >> 8;
int16_t nFrame = SeqBase[nSeqOffset + nSeq] + nVal;
@ -527,8 +527,6 @@ int seq_PlotArrowSequence(int nSprite, int16_t nSeq, int nVal)
int seq_PlotSequence(int nSprite, int16_t edx, int16_t nFrame, int16_t ecx)
{
tspritetype* pTSprite = mytspriteArray->get(nSprite);
int nAngle = getangle(nCamerapos.XY() - pTSprite->pos.XY());
int val;
@ -538,7 +536,8 @@ int seq_PlotSequence(int nSprite, int16_t edx, int16_t nFrame, int16_t ecx)
}
else
{
val = (((pTSprite->int_ang() - nAngle) + 128) & kAngleMask) >> 8;
DAngle nAngle = VecToAngle(nCamerapos.XY() - pTSprite->pos.XY());
val = (((pTSprite->angle + DAngle22_5 - nAngle).Buildang()) & kAngleMask) >> 8;
}
int eax = SeqBase[edx] + nFrame;