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17 lines
650 B
17 lines
650 B
#ifndef __QMATH_H__
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#define __QMATH_H__
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MATRIX *RotMatrixQ(SVECTOR *r, MATRIX *m);
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#define m_dot12(a, b) ((((int)((a)->vx) * (b)->vx) >> 12) + (((int)((a)->vy) * (b)->vy) >> 12) + (((int)((a)->vz) * (b)->vz) >> 12))
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// TODO: worth a benchmark: is it faster to copy these vectors and use them from the stack, or to do six pointer dereferences?
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INLINE int m_pointPlaneDist2(const VECTOR* point2, const SVECTOR* normal12, int dist2)
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{
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int x = ((int)point2->vx * normal12->vx) >> 12;
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int y = ((int)point2->vy * normal12->vy) >> 12;
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int z = ((int)point2->vz * normal12->vz) >> 12;
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return (x + y + z - dist2);
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}
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#endif // __QMATH_H__
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