X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=mathlib.c;h=d6170d28977c27645f71b9987887854670d34916;hp=ae9ff6343883948c1485a8422df4b6acbe4f9f52;hb=f575e5ad7f9eab64e89b714e75ff5dd92e49f373;hpb=ea7c24e1fb41f3b1df984ac0eed6881c9fde16f5 diff --git a/mathlib.c b/mathlib.c index ae9ff634..d6170d28 100644 --- a/mathlib.c +++ b/mathlib.c @@ -19,10 +19,9 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ // mathlib.c -- math primitives -#include #include "quakedef.h" -void Sys_Error (char *error, ...); +#include vec3_t vec3_origin = {0,0,0}; float ixtable[4096]; @@ -31,90 +30,91 @@ float ixtable[4096]; float m_bytenormals[NUMVERTEXNORMALS][3] = { -{-0.525731, 0.000000, 0.850651}, {-0.442863, 0.238856, 0.864188}, -{-0.295242, 0.000000, 0.955423}, {-0.309017, 0.500000, 0.809017}, -{-0.162460, 0.262866, 0.951056}, {0.000000, 0.000000, 1.000000}, -{0.000000, 0.850651, 0.525731}, {-0.147621, 0.716567, 0.681718}, -{0.147621, 0.716567, 0.681718}, {0.000000, 0.525731, 0.850651}, -{0.309017, 0.500000, 0.809017}, {0.525731, 0.000000, 0.850651}, -{0.295242, 0.000000, 0.955423}, {0.442863, 0.238856, 0.864188}, -{0.162460, 0.262866, 0.951056}, {-0.681718, 0.147621, 0.716567}, -{-0.809017, 0.309017, 0.500000}, {-0.587785, 0.425325, 0.688191}, +{-0.525731, 0.000000, 0.850651}, {-0.442863, 0.238856, 0.864188}, +{-0.295242, 0.000000, 0.955423}, {-0.309017, 0.500000, 0.809017}, +{-0.162460, 0.262866, 0.951056}, {0.000000, 0.000000, 1.000000}, +{0.000000, 0.850651, 0.525731}, {-0.147621, 0.716567, 0.681718}, +{0.147621, 0.716567, 0.681718}, {0.000000, 0.525731, 0.850651}, +{0.309017, 0.500000, 0.809017}, {0.525731, 0.000000, 0.850651}, +{0.295242, 0.000000, 0.955423}, {0.442863, 0.238856, 0.864188}, +{0.162460, 0.262866, 0.951056}, {-0.681718, 0.147621, 0.716567}, +{-0.809017, 0.309017, 0.500000}, {-0.587785, 0.425325, 0.688191}, {-0.850651, 0.525731, 0.000000}, {-0.864188, 0.442863, 0.238856}, -{-0.716567, 0.681718, 0.147621}, {-0.688191, 0.587785, 0.425325}, -{-0.500000, 0.809017, 0.309017}, {-0.238856, 0.864188, 0.442863}, -{-0.425325, 0.688191, 0.587785}, {-0.716567, 0.681718, -0.147621}, -{-0.500000, 0.809017, -0.309017}, {-0.525731, 0.850651, 0.000000}, -{0.000000, 0.850651, -0.525731}, {-0.238856, 0.864188, -0.442863}, -{0.000000, 0.955423, -0.295242}, {-0.262866, 0.951056, -0.162460}, -{0.000000, 1.000000, 0.000000}, {0.000000, 0.955423, 0.295242}, -{-0.262866, 0.951056, 0.162460}, {0.238856, 0.864188, 0.442863}, -{0.262866, 0.951056, 0.162460}, {0.500000, 0.809017, 0.309017}, -{0.238856, 0.864188, -0.442863}, {0.262866, 0.951056, -0.162460}, -{0.500000, 0.809017, -0.309017}, {0.850651, 0.525731, 0.000000}, -{0.716567, 0.681718, 0.147621}, {0.716567, 0.681718, -0.147621}, -{0.525731, 0.850651, 0.000000}, {0.425325, 0.688191, 0.587785}, -{0.864188, 0.442863, 0.238856}, {0.688191, 0.587785, 0.425325}, -{0.809017, 0.309017, 0.500000}, {0.681718, 0.147621, 0.716567}, -{0.587785, 0.425325, 0.688191}, {0.955423, 0.295242, 0.000000}, +{-0.716567, 0.681718, 0.147621}, {-0.688191, 0.587785, 0.425325}, +{-0.500000, 0.809017, 0.309017}, {-0.238856, 0.864188, 0.442863}, +{-0.425325, 0.688191, 0.587785}, {-0.716567, 0.681718, -0.147621}, +{-0.500000, 0.809017, -0.309017}, {-0.525731, 0.850651, 0.000000}, +{0.000000, 0.850651, -0.525731}, {-0.238856, 0.864188, -0.442863}, +{0.000000, 0.955423, -0.295242}, {-0.262866, 0.951056, -0.162460}, +{0.000000, 1.000000, 0.000000}, {0.000000, 0.955423, 0.295242}, +{-0.262866, 0.951056, 0.162460}, {0.238856, 0.864188, 0.442863}, +{0.262866, 0.951056, 0.162460}, {0.500000, 0.809017, 0.309017}, +{0.238856, 0.864188, -0.442863}, {0.262866, 0.951056, -0.162460}, +{0.500000, 0.809017, -0.309017}, {0.850651, 0.525731, 0.000000}, +{0.716567, 0.681718, 0.147621}, {0.716567, 0.681718, -0.147621}, +{0.525731, 0.850651, 0.000000}, {0.425325, 0.688191, 0.587785}, +{0.864188, 0.442863, 0.238856}, {0.688191, 0.587785, 0.425325}, +{0.809017, 0.309017, 0.500000}, {0.681718, 0.147621, 0.716567}, +{0.587785, 0.425325, 0.688191}, {0.955423, 0.295242, 0.000000}, {1.000000, 0.000000, 0.000000}, {0.951056, 0.162460, 0.262866}, -{0.850651, -0.525731, 0.000000}, {0.955423, -0.295242, 0.000000}, -{0.864188, -0.442863, 0.238856}, {0.951056, -0.162460, 0.262866}, +{0.850651, -0.525731, 0.000000}, {0.955423, -0.295242, 0.000000}, +{0.864188, -0.442863, 0.238856}, {0.951056, -0.162460, 0.262866}, {0.809017, -0.309017, 0.500000}, {0.681718, -0.147621, 0.716567}, {0.850651, 0.000000, 0.525731}, {0.864188, 0.442863, -0.238856}, -{0.809017, 0.309017, -0.500000}, {0.951056, 0.162460, -0.262866}, -{0.525731, 0.000000, -0.850651}, {0.681718, 0.147621, -0.716567}, +{0.809017, 0.309017, -0.500000}, {0.951056, 0.162460, -0.262866}, +{0.525731, 0.000000, -0.850651}, {0.681718, 0.147621, -0.716567}, {0.681718, -0.147621, -0.716567}, {0.850651, 0.000000, -0.525731}, -{0.809017, -0.309017, -0.500000}, {0.864188, -0.442863, -0.238856}, -{0.951056, -0.162460, -0.262866}, {0.147621, 0.716567, -0.681718}, -{0.309017, 0.500000, -0.809017}, {0.425325, 0.688191, -0.587785}, -{0.442863, 0.238856, -0.864188}, {0.587785, 0.425325, -0.688191}, -{0.688191, 0.587785, -0.425325}, {-0.147621, 0.716567, -0.681718}, -{-0.309017, 0.500000, -0.809017}, {0.000000, 0.525731, -0.850651}, -{-0.525731, 0.000000, -0.850651}, {-0.442863, 0.238856, -0.864188}, -{-0.295242, 0.000000, -0.955423}, {-0.162460, 0.262866, -0.951056}, -{0.000000, 0.000000, -1.000000}, {0.295242, 0.000000, -0.955423}, -{0.162460, 0.262866, -0.951056}, {-0.442863, -0.238856, -0.864188}, -{-0.309017, -0.500000, -0.809017}, {-0.162460, -0.262866, -0.951056}, -{0.000000, -0.850651, -0.525731}, {-0.147621, -0.716567, -0.681718}, -{0.147621, -0.716567, -0.681718}, {0.000000, -0.525731, -0.850651}, -{0.309017, -0.500000, -0.809017}, {0.442863, -0.238856, -0.864188}, -{0.162460, -0.262866, -0.951056}, {0.238856, -0.864188, -0.442863}, -{0.500000, -0.809017, -0.309017}, {0.425325, -0.688191, -0.587785}, -{0.716567, -0.681718, -0.147621}, {0.688191, -0.587785, -0.425325}, +{0.809017, -0.309017, -0.500000}, {0.864188, -0.442863, -0.238856}, +{0.951056, -0.162460, -0.262866}, {0.147621, 0.716567, -0.681718}, +{0.309017, 0.500000, -0.809017}, {0.425325, 0.688191, -0.587785}, +{0.442863, 0.238856, -0.864188}, {0.587785, 0.425325, -0.688191}, +{0.688191, 0.587785, -0.425325}, {-0.147621, 0.716567, -0.681718}, +{-0.309017, 0.500000, -0.809017}, {0.000000, 0.525731, -0.850651}, +{-0.525731, 0.000000, -0.850651}, {-0.442863, 0.238856, -0.864188}, +{-0.295242, 0.000000, -0.955423}, {-0.162460, 0.262866, -0.951056}, +{0.000000, 0.000000, -1.000000}, {0.295242, 0.000000, -0.955423}, +{0.162460, 0.262866, -0.951056}, {-0.442863, -0.238856, -0.864188}, +{-0.309017, -0.500000, -0.809017}, {-0.162460, -0.262866, -0.951056}, +{0.000000, -0.850651, -0.525731}, {-0.147621, -0.716567, -0.681718}, +{0.147621, -0.716567, -0.681718}, {0.000000, -0.525731, -0.850651}, +{0.309017, -0.500000, -0.809017}, {0.442863, -0.238856, -0.864188}, +{0.162460, -0.262866, -0.951056}, {0.238856, -0.864188, -0.442863}, +{0.500000, -0.809017, -0.309017}, {0.425325, -0.688191, -0.587785}, +{0.716567, -0.681718, -0.147621}, {0.688191, -0.587785, -0.425325}, {0.587785, -0.425325, -0.688191}, {0.000000, -0.955423, -0.295242}, -{0.000000, -1.000000, 0.000000}, {0.262866, -0.951056, -0.162460}, -{0.000000, -0.850651, 0.525731}, {0.000000, -0.955423, 0.295242}, -{0.238856, -0.864188, 0.442863}, {0.262866, -0.951056, 0.162460}, -{0.500000, -0.809017, 0.309017}, {0.716567, -0.681718, 0.147621}, -{0.525731, -0.850651, 0.000000}, {-0.238856, -0.864188, -0.442863}, -{-0.500000, -0.809017, -0.309017}, {-0.262866, -0.951056, -0.162460}, +{0.000000, -1.000000, 0.000000}, {0.262866, -0.951056, -0.162460}, +{0.000000, -0.850651, 0.525731}, {0.000000, -0.955423, 0.295242}, +{0.238856, -0.864188, 0.442863}, {0.262866, -0.951056, 0.162460}, +{0.500000, -0.809017, 0.309017}, {0.716567, -0.681718, 0.147621}, +{0.525731, -0.850651, 0.000000}, {-0.238856, -0.864188, -0.442863}, +{-0.500000, -0.809017, -0.309017}, {-0.262866, -0.951056, -0.162460}, {-0.850651, -0.525731, 0.000000}, {-0.716567, -0.681718, -0.147621}, -{-0.716567, -0.681718, 0.147621}, {-0.525731, -0.850651, 0.000000}, +{-0.716567, -0.681718, 0.147621}, {-0.525731, -0.850651, 0.000000}, {-0.500000, -0.809017, 0.309017}, {-0.238856, -0.864188, 0.442863}, -{-0.262866, -0.951056, 0.162460}, {-0.864188, -0.442863, 0.238856}, +{-0.262866, -0.951056, 0.162460}, {-0.864188, -0.442863, 0.238856}, {-0.809017, -0.309017, 0.500000}, {-0.688191, -0.587785, 0.425325}, -{-0.681718, -0.147621, 0.716567}, {-0.442863, -0.238856, 0.864188}, -{-0.587785, -0.425325, 0.688191}, {-0.309017, -0.500000, 0.809017}, -{-0.147621, -0.716567, 0.681718}, {-0.425325, -0.688191, 0.587785}, -{-0.162460, -0.262866, 0.951056}, {0.442863, -0.238856, 0.864188}, -{0.162460, -0.262866, 0.951056}, {0.309017, -0.500000, 0.809017}, -{0.147621, -0.716567, 0.681718}, {0.000000, -0.525731, 0.850651}, -{0.425325, -0.688191, 0.587785}, {0.587785, -0.425325, 0.688191}, -{0.688191, -0.587785, 0.425325}, {-0.955423, 0.295242, 0.000000}, -{-0.951056, 0.162460, 0.262866}, {-1.000000, 0.000000, 0.000000}, -{-0.850651, 0.000000, 0.525731}, {-0.955423, -0.295242, 0.000000}, -{-0.951056, -0.162460, 0.262866}, {-0.864188, 0.442863, -0.238856}, -{-0.951056, 0.162460, -0.262866}, {-0.809017, 0.309017, -0.500000}, +{-0.681718, -0.147621, 0.716567}, {-0.442863, -0.238856, 0.864188}, +{-0.587785, -0.425325, 0.688191}, {-0.309017, -0.500000, 0.809017}, +{-0.147621, -0.716567, 0.681718}, {-0.425325, -0.688191, 0.587785}, +{-0.162460, -0.262866, 0.951056}, {0.442863, -0.238856, 0.864188}, +{0.162460, -0.262866, 0.951056}, {0.309017, -0.500000, 0.809017}, +{0.147621, -0.716567, 0.681718}, {0.000000, -0.525731, 0.850651}, +{0.425325, -0.688191, 0.587785}, {0.587785, -0.425325, 0.688191}, +{0.688191, -0.587785, 0.425325}, {-0.955423, 0.295242, 0.000000}, +{-0.951056, 0.162460, 0.262866}, {-1.000000, 0.000000, 0.000000}, +{-0.850651, 0.000000, 0.525731}, {-0.955423, -0.295242, 0.000000}, +{-0.951056, -0.162460, 0.262866}, {-0.864188, 0.442863, -0.238856}, +{-0.951056, 0.162460, -0.262866}, {-0.809017, 0.309017, -0.500000}, {-0.864188, -0.442863, -0.238856}, {-0.951056, -0.162460, -0.262866}, -{-0.809017, -0.309017, -0.500000}, {-0.681718, 0.147621, -0.716567}, -{-0.681718, -0.147621, -0.716567}, {-0.850651, 0.000000, -0.525731}, -{-0.688191, 0.587785, -0.425325}, {-0.587785, 0.425325, -0.688191}, -{-0.425325, 0.688191, -0.587785}, {-0.425325, -0.688191, -0.587785}, -{-0.587785, -0.425325, -0.688191}, {-0.688191, -0.587785, -0.425325}, +{-0.809017, -0.309017, -0.500000}, {-0.681718, 0.147621, -0.716567}, +{-0.681718, -0.147621, -0.716567}, {-0.850651, 0.000000, -0.525731}, +{-0.688191, 0.587785, -0.425325}, {-0.587785, 0.425325, -0.688191}, +{-0.425325, 0.688191, -0.587785}, {-0.425325, -0.688191, -0.587785}, +{-0.587785, -0.425325, -0.688191}, {-0.688191, -0.587785, -0.425325}, }; -qbyte NormalToByte(const vec3_t n) +#if 0 +unsigned char NormalToByte(const vec3_t n) { int i, best; float bestdistance, distance; @@ -134,7 +134,7 @@ qbyte NormalToByte(const vec3_t n) } // note: uses byte partly to force unsigned for the validity check -void ByteToNormal(qbyte num, vec3_t n) +void ByteToNormal(unsigned char num, vec3_t n) { if (num < NUMVERTEXNORMALS) VectorCopy(m_bytenormals[num], n); @@ -142,23 +142,11 @@ void ByteToNormal(qbyte num, vec3_t n) VectorClear(n); // FIXME: complain? } -float Q_RSqrt(float number) -{ - float y; - - if (number == 0.0f) - return 0.0f; - - *((int *)&y) = 0x5f3759df - ((* (int *) &number) >> 1); - return y * (1.5f - (number * 0.5f * y * y)); -} - - // assumes "src" is normalized void PerpendicularVector( vec3_t dst, const vec3_t src ) { // LordHavoc: optimized to death and beyond - int pos; + int pos; float minelem; if (src[0]) @@ -204,6 +192,7 @@ void PerpendicularVector( vec3_t dst, const vec3_t src ) dst[2] = 0; } } +#endif // LordHavoc: like AngleVectors, but taking a forward vector instead of angles, useful! @@ -216,10 +205,8 @@ void VectorVectors(const vec3_t forward, vec3_t right, vec3_t up) right[2] = forward[1]; d = DotProduct(forward, right); - right[0] -= d * forward[0]; - right[1] -= d * forward[1]; - right[2] -= d * forward[2]; - VectorNormalizeFast(right); + VectorMA(right, -d, forward, right); + VectorNormalize(right); CrossProduct(right, forward, up); } @@ -232,28 +219,21 @@ void VectorVectorsDouble(const double *forward, double *right, double *up) right[2] = forward[1]; d = DotProduct(forward, right); - right[0] -= d * forward[0]; - right[1] -= d * forward[1]; - right[2] -= d * forward[2]; + VectorMA(right, -d, forward, right); VectorNormalize(right); CrossProduct(right, forward, up); } void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees ) { - float t0, t1; - float angle, c, s; - vec3_t vr, vu, vf; + float t0, t1; + float angle, c, s; + vec3_t vr, vu, vf; angle = DEG2RAD(degrees); - c = cos(angle); s = sin(angle); - - vf[0] = dir[0]; - vf[1] = dir[1]; - vf[2] = dir[2]; - + VectorCopy(dir, vf); VectorVectors(vf, vr, vu); t0 = vr[0] * c + vu[0] * -s; @@ -277,84 +257,28 @@ void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, /*-----------------------------------------------------------------*/ - -// LordHavoc note 1: -// BoxOnPlaneSide did a switch on a 'signbits' value and had optimized -// assembly in an attempt to accelerate it further, very inefficient -// considering that signbits of the frustum planes only changed each -// frame, and the world planes changed only at load time. -// So, to optimize it further I took the obvious route of storing a function -// pointer in the plane struct itself, and shrunk each of the individual -// cases to a single return statement. -// LordHavoc note 2: -// realized axial cases would be a nice speedup for world geometry, although -// never useful for the frustum planes. -int BoxOnPlaneSideX (vec3_t emins, vec3_t emaxs, mplane_t *p) {return p->dist <= emins[0] ? 1 : (p->dist >= emaxs[0] ? 2 : 3);} -int BoxOnPlaneSideY (vec3_t emins, vec3_t emaxs, mplane_t *p) {return p->dist <= emins[1] ? 1 : (p->dist >= emaxs[1] ? 2 : 3);} -int BoxOnPlaneSideZ (vec3_t emins, vec3_t emaxs, mplane_t *p) {return p->dist <= emins[2] ? 1 : (p->dist >= emaxs[2] ? 2 : 3);} -int BoxOnPlaneSide0 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2]) >= p->dist) | (((p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2]) < p->dist) << 1));} -int BoxOnPlaneSide1 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2]) >= p->dist) | (((p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2]) < p->dist) << 1));} -int BoxOnPlaneSide2 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2]) >= p->dist) | (((p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2]) < p->dist) << 1));} -int BoxOnPlaneSide3 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2]) >= p->dist) | (((p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2]) < p->dist) << 1));} -int BoxOnPlaneSide4 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2]) >= p->dist) | (((p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2]) < p->dist) << 1));} -int BoxOnPlaneSide5 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emins[2]) >= p->dist) | (((p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emaxs[2]) < p->dist) << 1));} -int BoxOnPlaneSide6 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emaxs[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2]) >= p->dist) | (((p->normal[0]*emins[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2]) < p->dist) << 1));} -int BoxOnPlaneSide7 (vec3_t emins, vec3_t emaxs, mplane_t *p) {return (((p->normal[0]*emins[0] + p->normal[1]*emins[1] + p->normal[2]*emins[2]) >= p->dist) | (((p->normal[0]*emaxs[0] + p->normal[1]*emaxs[1] + p->normal[2]*emaxs[2]) < p->dist) << 1));} - -void BoxOnPlaneSideClassify(mplane_t *p) +// returns the smallest integer greater than or equal to "value", or 0 if "value" is too big +unsigned int CeilPowerOf2(unsigned int value) { - switch(p->type) - { - case 0: // x axis - p->BoxOnPlaneSideFunc = BoxOnPlaneSideX; - break; - case 1: // y axis - p->BoxOnPlaneSideFunc = BoxOnPlaneSideY; - break; - case 2: // z axis - p->BoxOnPlaneSideFunc = BoxOnPlaneSideZ; - break; - default: - if (p->normal[2] < 0) // 4 - { - if (p->normal[1] < 0) // 2 - { - if (p->normal[0] < 0) // 1 - p->BoxOnPlaneSideFunc = BoxOnPlaneSide7; - else - p->BoxOnPlaneSideFunc = BoxOnPlaneSide6; - } - else - { - if (p->normal[0] < 0) // 1 - p->BoxOnPlaneSideFunc = BoxOnPlaneSide5; - else - p->BoxOnPlaneSideFunc = BoxOnPlaneSide4; - } - } - else - { - if (p->normal[1] < 0) // 2 - { - if (p->normal[0] < 0) // 1 - p->BoxOnPlaneSideFunc = BoxOnPlaneSide3; - else - p->BoxOnPlaneSideFunc = BoxOnPlaneSide2; - } - else - { - if (p->normal[0] < 0) // 1 - p->BoxOnPlaneSideFunc = BoxOnPlaneSide1; - else - p->BoxOnPlaneSideFunc = BoxOnPlaneSide0; - } - } - break; - } + unsigned int ceilvalue; + + if (value > (1U << (sizeof(int) * 8 - 1))) + return 0; + + ceilvalue = 1; + while (ceilvalue < value) + ceilvalue <<= 1; + + return ceilvalue; } + +/*-----------------------------------------------------------------*/ + + void PlaneClassify(mplane_t *p) { + // for optimized plane comparisons if (p->normal[0] == 1) p->type = 0; else if (p->normal[1] == 1) @@ -363,7 +287,127 @@ void PlaneClassify(mplane_t *p) p->type = 2; else p->type = 3; - BoxOnPlaneSideClassify(p); + // for BoxOnPlaneSide + p->signbits = 0; + if (p->normal[0] < 0) // 1 + p->signbits |= 1; + if (p->normal[1] < 0) // 2 + p->signbits |= 2; + if (p->normal[2] < 0) // 4 + p->signbits |= 4; +} + +int BoxOnPlaneSide(const vec3_t emins, const vec3_t emaxs, const mplane_t *p) +{ + if (p->type < 3) + return ((emaxs[p->type] >= p->dist) | ((emins[p->type] < p->dist) << 1)); + switch(p->signbits) + { + default: + case 0: return (((p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2]) >= p->dist) | (((p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2]) < p->dist) << 1)); + case 1: return (((p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2]) >= p->dist) | (((p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2]) < p->dist) << 1)); + case 2: return (((p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2]) >= p->dist) | (((p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2]) < p->dist) << 1)); + case 3: return (((p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2]) >= p->dist) | (((p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2]) < p->dist) << 1)); + case 4: return (((p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2]) >= p->dist) | (((p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2]) < p->dist) << 1)); + case 5: return (((p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2]) >= p->dist) | (((p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2]) < p->dist) << 1)); + case 6: return (((p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2]) >= p->dist) | (((p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2]) < p->dist) << 1)); + case 7: return (((p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2]) >= p->dist) | (((p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2]) < p->dist) << 1)); + } +} + +#if 0 +int BoxOnPlaneSide_Separate(const vec3_t emins, const vec3_t emaxs, const vec3_t normal, const vec_t dist) +{ + switch((normal[0] < 0) | ((normal[1] < 0) << 1) | ((normal[2] < 0) << 2)) + { + default: + case 0: return (((normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2]) >= dist) | (((normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emins[2]) < dist) << 1)); + case 1: return (((normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2]) >= dist) | (((normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emins[2]) < dist) << 1)); + case 2: return (((normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emaxs[2]) >= dist) | (((normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emins[2]) < dist) << 1)); + case 3: return (((normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emaxs[2]) >= dist) | (((normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emins[2]) < dist) << 1)); + case 4: return (((normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emins[2]) >= dist) | (((normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emaxs[2]) < dist) << 1)); + case 5: return (((normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emins[2]) >= dist) | (((normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emaxs[2]) < dist) << 1)); + case 6: return (((normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emins[2]) >= dist) | (((normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2]) < dist) << 1)); + case 7: return (((normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emins[2]) >= dist) | (((normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2]) < dist) << 1)); + } +} +#endif + +void BoxPlaneCorners(const vec3_t emins, const vec3_t emaxs, const mplane_t *p, vec3_t outnear, vec3_t outfar) +{ + if (p->type < 3) + { + outnear[0] = outnear[1] = outnear[2] = outfar[0] = outfar[1] = outfar[2] = 0; + outnear[p->type] = emins[p->type]; + outfar[p->type] = emaxs[p->type]; + return; + } + switch(p->signbits) + { + default: + case 0: outnear[0] = emaxs[0];outnear[1] = emaxs[1];outnear[2] = emaxs[2];outfar[0] = emins[0];outfar[1] = emins[1];outfar[2] = emins[2];break; + case 1: outnear[0] = emins[0];outnear[1] = emaxs[1];outnear[2] = emaxs[2];outfar[0] = emaxs[0];outfar[1] = emins[1];outfar[2] = emins[2];break; + case 2: outnear[0] = emaxs[0];outnear[1] = emins[1];outnear[2] = emaxs[2];outfar[0] = emins[0];outfar[1] = emaxs[1];outfar[2] = emins[2];break; + case 3: outnear[0] = emins[0];outnear[1] = emins[1];outnear[2] = emaxs[2];outfar[0] = emaxs[0];outfar[1] = emaxs[1];outfar[2] = emins[2];break; + case 4: outnear[0] = emaxs[0];outnear[1] = emaxs[1];outnear[2] = emins[2];outfar[0] = emins[0];outfar[1] = emins[1];outfar[2] = emaxs[2];break; + case 5: outnear[0] = emins[0];outnear[1] = emaxs[1];outnear[2] = emins[2];outfar[0] = emaxs[0];outfar[1] = emins[1];outfar[2] = emaxs[2];break; + case 6: outnear[0] = emaxs[0];outnear[1] = emins[1];outnear[2] = emins[2];outfar[0] = emins[0];outfar[1] = emaxs[1];outfar[2] = emaxs[2];break; + case 7: outnear[0] = emins[0];outnear[1] = emins[1];outnear[2] = emins[2];outfar[0] = emaxs[0];outfar[1] = emaxs[1];outfar[2] = emaxs[2];break; + } +} + +void BoxPlaneCorners_Separate(const vec3_t emins, const vec3_t emaxs, const vec3_t normal, vec3_t outnear, vec3_t outfar) +{ + switch((normal[0] < 0) | ((normal[1] < 0) << 1) | ((normal[2] < 0) << 2)) + { + default: + case 0: outnear[0] = emaxs[0];outnear[1] = emaxs[1];outnear[2] = emaxs[2];outfar[0] = emins[0];outfar[1] = emins[1];outfar[2] = emins[2];break; + case 1: outnear[0] = emins[0];outnear[1] = emaxs[1];outnear[2] = emaxs[2];outfar[0] = emaxs[0];outfar[1] = emins[1];outfar[2] = emins[2];break; + case 2: outnear[0] = emaxs[0];outnear[1] = emins[1];outnear[2] = emaxs[2];outfar[0] = emins[0];outfar[1] = emaxs[1];outfar[2] = emins[2];break; + case 3: outnear[0] = emins[0];outnear[1] = emins[1];outnear[2] = emaxs[2];outfar[0] = emaxs[0];outfar[1] = emaxs[1];outfar[2] = emins[2];break; + case 4: outnear[0] = emaxs[0];outnear[1] = emaxs[1];outnear[2] = emins[2];outfar[0] = emins[0];outfar[1] = emins[1];outfar[2] = emaxs[2];break; + case 5: outnear[0] = emins[0];outnear[1] = emaxs[1];outnear[2] = emins[2];outfar[0] = emaxs[0];outfar[1] = emins[1];outfar[2] = emaxs[2];break; + case 6: outnear[0] = emaxs[0];outnear[1] = emins[1];outnear[2] = emins[2];outfar[0] = emins[0];outfar[1] = emaxs[1];outfar[2] = emaxs[2];break; + case 7: outnear[0] = emins[0];outnear[1] = emins[1];outnear[2] = emins[2];outfar[0] = emaxs[0];outfar[1] = emaxs[1];outfar[2] = emaxs[2];break; + } +} + +void BoxPlaneCornerDistances(const vec3_t emins, const vec3_t emaxs, const mplane_t *p, vec_t *outneardist, vec_t *outfardist) +{ + if (p->type < 3) + { + *outneardist = emins[p->type] - p->dist; + *outfardist = emaxs[p->type] - p->dist; + return; + } + switch(p->signbits) + { + default: + case 0: *outneardist = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2] - p->dist;*outfardist = p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2] - p->dist;break; + case 1: *outneardist = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2] - p->dist;*outfardist = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2] - p->dist;break; + case 2: *outneardist = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2] - p->dist;*outfardist = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2] - p->dist;break; + case 3: *outneardist = p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2] - p->dist;*outfardist = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2] - p->dist;break; + case 4: *outneardist = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2] - p->dist;*outfardist = p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2] - p->dist;break; + case 5: *outneardist = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emins[2] - p->dist;*outfardist = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emaxs[2] - p->dist;break; + case 6: *outneardist = p->normal[0] * emaxs[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2] - p->dist;*outfardist = p->normal[0] * emins[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2] - p->dist;break; + case 7: *outneardist = p->normal[0] * emins[0] + p->normal[1] * emins[1] + p->normal[2] * emins[2] - p->dist;*outfardist = p->normal[0] * emaxs[0] + p->normal[1] * emaxs[1] + p->normal[2] * emaxs[2] - p->dist;break; + } +} + +void BoxPlaneCornerDistances_Separate(const vec3_t emins, const vec3_t emaxs, const vec3_t normal, vec_t *outneardist, vec_t *outfardist) +{ + switch((normal[0] < 0) | ((normal[1] < 0) << 1) | ((normal[2] < 0) << 2)) + { + default: + case 0: *outneardist = normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2];*outfardist = normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emins[2];break; + case 1: *outneardist = normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2];*outfardist = normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emins[2];break; + case 2: *outneardist = normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emaxs[2];*outfardist = normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emins[2];break; + case 3: *outneardist = normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emaxs[2];*outfardist = normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emins[2];break; + case 4: *outneardist = normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emins[2];*outfardist = normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emaxs[2];break; + case 5: *outneardist = normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emins[2];*outfardist = normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emaxs[2];break; + case 6: *outneardist = normal[0] * emaxs[0] + normal[1] * emins[1] + normal[2] * emins[2];*outfardist = normal[0] * emins[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2];break; + case 7: *outneardist = normal[0] * emins[0] + normal[1] * emins[1] + normal[2] * emins[2];*outfardist = normal[0] * emaxs[0] + normal[1] * emaxs[1] + normal[2] * emaxs[2];break; + } } void AngleVectors (const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up) @@ -384,20 +428,38 @@ void AngleVectors (const vec3_t angles, vec3_t forward, vec3_t right, vec3_t up) } if (right || up) { - angle = angles[ROLL] * (M_PI*2 / 360); - sr = sin(angle); - cr = cos(angle); - if (right) + if (angles[ROLL]) { - right[0] = -1*(sr*sp*cy+cr*-sy); - right[1] = -1*(sr*sp*sy+cr*cy); - right[2] = -1*(sr*cp); + angle = angles[ROLL] * (M_PI*2 / 360); + sr = sin(angle); + cr = cos(angle); + if (right) + { + right[0] = -1*(sr*sp*cy+cr*-sy); + right[1] = -1*(sr*sp*sy+cr*cy); + right[2] = -1*(sr*cp); + } + if (up) + { + up[0] = (cr*sp*cy+-sr*-sy); + up[1] = (cr*sp*sy+-sr*cy); + up[2] = cr*cp; + } } - if (up) + else { - up[0] = (cr*sp*cy+-sr*-sy); - up[1] = (cr*sp*sy+-sr*cy); - up[2] = cr*cp; + if (right) + { + right[0] = sy; + right[1] = -cy; + right[2] = 0; + } + if (up) + { + up[0] = (sp*cy); + up[1] = (sp*sy); + up[2] = cp; + } } } } @@ -420,24 +482,119 @@ void AngleVectorsFLU (const vec3_t angles, vec3_t forward, vec3_t left, vec3_t u } if (left || up) { - angle = angles[ROLL] * (M_PI*2 / 360); - sr = sin(angle); - cr = cos(angle); - if (left) + if (angles[ROLL]) { - left[0] = sr*sp*cy+cr*-sy; - left[1] = sr*sp*sy+cr*cy; - left[2] = sr*cp; + angle = angles[ROLL] * (M_PI*2 / 360); + sr = sin(angle); + cr = cos(angle); + if (left) + { + left[0] = sr*sp*cy+cr*-sy; + left[1] = sr*sp*sy+cr*cy; + left[2] = sr*cp; + } + if (up) + { + up[0] = cr*sp*cy+-sr*-sy; + up[1] = cr*sp*sy+-sr*cy; + up[2] = cr*cp; + } } + else + { + if (left) + { + left[0] = -sy; + left[1] = cy; + left[2] = 0; + } + if (up) + { + up[0] = sp*cy; + up[1] = sp*sy; + up[2] = cp; + } + } + } +} + +// LordHavoc: calculates pitch/yaw/roll angles from forward and up vectors +void AnglesFromVectors (vec3_t angles, const vec3_t forward, const vec3_t up, qboolean flippitch) +{ + if (forward[0] == 0 && forward[1] == 0) + { + if(forward[2] > 0) + { + angles[PITCH] = -M_PI * 0.5; + angles[YAW] = up ? atan2(-up[1], -up[0]) : 0; + } + else + { + angles[PITCH] = M_PI * 0.5; + angles[YAW] = up ? atan2(up[1], up[0]) : 0; + } + angles[ROLL] = 0; + } + else + { + angles[YAW] = atan2(forward[1], forward[0]); + angles[PITCH] = -atan2(forward[2], sqrt(forward[0]*forward[0] + forward[1]*forward[1])); if (up) { - up[0] = cr*sp*cy+-sr*-sy; - up[1] = cr*sp*sy+-sr*cy; - up[2] = cr*cp; + vec_t cp = cos(angles[PITCH]), sp = sin(angles[PITCH]); + vec_t cy = cos(angles[YAW]), sy = sin(angles[YAW]); + vec3_t tleft, tup; + tleft[0] = -sy; + tleft[1] = cy; + tleft[2] = 0; + tup[0] = sp*cy; + tup[1] = sp*sy; + tup[2] = cp; + angles[ROLL] = -atan2(DotProduct(up, tleft), DotProduct(up, tup)); + } + else + angles[ROLL] = 0; + } + + // now convert radians to degrees, and make all values positive + VectorScale(angles, 180.0 / M_PI, angles); + if (flippitch) + angles[PITCH] *= -1; + if (angles[PITCH] < 0) angles[PITCH] += 360; + if (angles[YAW] < 0) angles[YAW] += 360; + if (angles[ROLL] < 0) angles[ROLL] += 360; + +#if 0 +{ + // debugging code + vec3_t tforward, tleft, tup, nforward, nup; + VectorCopy(forward, nforward); + VectorNormalize(nforward); + if (up) + { + VectorCopy(up, nup); + VectorNormalize(nup); + AngleVectors(angles, tforward, tleft, tup); + if (VectorDistance(tforward, nforward) > 0.01 || VectorDistance(tup, nup) > 0.01) + { + Con_Printf("vectoangles('%f %f %f', '%f %f %f') = %f %f %f\n", nforward[0], nforward[1], nforward[2], nup[0], nup[1], nup[2], angles[0], angles[1], angles[2]); + Con_Printf("^3But that is '%f %f %f', '%f %f %f'\n", tforward[0], tforward[1], tforward[2], tup[0], tup[1], tup[2]); } } + else + { + AngleVectors(angles, tforward, tleft, tup); + if (VectorDistance(tforward, nforward) > 0.01) + { + Con_Printf("vectoangles('%f %f %f') = %f %f %f\n", nforward[0], nforward[1], nforward[2], angles[0], angles[1], angles[2]); + Con_Printf("^3But that is '%f %f %f'\n", tforward[0], tforward[1], tforward[2]); + } + } +} +#endif } +#if 0 void AngleMatrix (const vec3_t angles, const vec3_t translate, vec_t matrix[][4]) { double angle, sr, sp, sy, cr, cp, cy; @@ -464,15 +621,16 @@ void AngleMatrix (const vec3_t angles, const vec3_t translate, vec_t matrix[][4] matrix[2][2] = cr*cp; matrix[2][3] = translate[2]; } +#endif -// LordHavoc: renamed these to Length, and made the normal ones #define +// LordHavoc: renamed this to Length, and made the normal one a #define float VectorNormalizeLength (vec3_t v) { - float length, ilength; + float length, ilength; length = v[0]*v[0] + v[1]*v[1] + v[2]*v[2]; - length = sqrt (length); // FIXME + length = sqrt (length); if (length) { @@ -481,7 +639,7 @@ float VectorNormalizeLength (vec3_t v) v[1] *= ilength; v[2] *= ilength; } - + return length; } @@ -494,15 +652,15 @@ R_ConcatRotations */ void R_ConcatRotations (const float in1[3*3], const float in2[3*3], float out[3*3]) { - out[0*3+ 0] = in1[0*3+ 0] * in2[0*3+ 0] + in1[0*3+ 1] * in2[1*3+ 0] + in1[0*3+ 2] * in2[2*3+ 0]; - out[0*3+ 1] = in1[0*3+ 0] * in2[0*3+ 1] + in1[0*3+ 1] * in2[1*3+ 1] + in1[0*3+ 2] * in2[2*3+ 1]; - out[0*3+ 2] = in1[0*3+ 0] * in2[0*3+ 2] + in1[0*3+ 1] * in2[1*3+ 2] + in1[0*3+ 2] * in2[2*3+ 2]; - out[1*3+ 0] = in1[1*3+ 0] * in2[0*3+ 0] + in1[1*3+ 1] * in2[1*3+ 0] + in1[1*3+ 2] * in2[2*3+ 0]; - out[1*3+ 1] = in1[1*3+ 0] * in2[0*3+ 1] + in1[1*3+ 1] * in2[1*3+ 1] + in1[1*3+ 2] * in2[2*3+ 1]; - out[1*3+ 2] = in1[1*3+ 0] * in2[0*3+ 2] + in1[1*3+ 1] * in2[1*3+ 2] + in1[1*3+ 2] * in2[2*3+ 2]; - out[2*3+ 0] = in1[2*3+ 0] * in2[0*3+ 0] + in1[2*3+ 1] * in2[1*3+ 0] + in1[2*3+ 2] * in2[2*3+ 0]; - out[2*3+ 1] = in1[2*3+ 0] * in2[0*3+ 1] + in1[2*3+ 1] * in2[1*3+ 1] + in1[2*3+ 2] * in2[2*3+ 1]; - out[2*3+ 2] = in1[2*3+ 0] * in2[0*3+ 2] + in1[2*3+ 1] * in2[1*3+ 2] + in1[2*3+ 2] * in2[2*3+ 2]; + out[0*3+0] = in1[0*3+0] * in2[0*3+0] + in1[0*3+1] * in2[1*3+0] + in1[0*3+2] * in2[2*3+0]; + out[0*3+1] = in1[0*3+0] * in2[0*3+1] + in1[0*3+1] * in2[1*3+1] + in1[0*3+2] * in2[2*3+1]; + out[0*3+2] = in1[0*3+0] * in2[0*3+2] + in1[0*3+1] * in2[1*3+2] + in1[0*3+2] * in2[2*3+2]; + out[1*3+0] = in1[1*3+0] * in2[0*3+0] + in1[1*3+1] * in2[1*3+0] + in1[1*3+2] * in2[2*3+0]; + out[1*3+1] = in1[1*3+0] * in2[0*3+1] + in1[1*3+1] * in2[1*3+1] + in1[1*3+2] * in2[2*3+1]; + out[1*3+2] = in1[1*3+0] * in2[0*3+2] + in1[1*3+1] * in2[1*3+2] + in1[1*3+2] * in2[2*3+2]; + out[2*3+0] = in1[2*3+0] * in2[0*3+0] + in1[2*3+1] * in2[1*3+0] + in1[2*3+2] * in2[2*3+0]; + out[2*3+1] = in1[2*3+0] * in2[0*3+1] + in1[2*3+1] * in2[1*3+1] + in1[2*3+2] * in2[2*3+1]; + out[2*3+2] = in1[2*3+0] * in2[0*3+2] + in1[2*3+1] * in2[1*3+2] + in1[2*3+2] * in2[2*3+2]; } @@ -527,6 +685,21 @@ void R_ConcatTransforms (const float in1[3*4], const float in2[3*4], float out[3 out[2*4+3] = in1[2*4+0] * in2[0*4+3] + in1[2*4+1] * in2[1*4+3] + in1[2*4+2] * in2[2*4+3] + in1[2*4+3]; } +float RadiusFromBounds (const vec3_t mins, const vec3_t maxs) +{ + vec3_t m1, m2; + VectorMultiply(mins, mins, m1); + VectorMultiply(maxs, maxs, m2); + return sqrt(max(m1[0], m2[0]) + max(m1[1], m2[1]) + max(m1[2], m2[2])); +} + +float RadiusFromBoundsAndOrigin (const vec3_t mins, const vec3_t maxs, const vec3_t origin) +{ + vec3_t m1, m2; + VectorSubtract(mins, origin, m1);VectorMultiply(m1, m1, m1); + VectorSubtract(maxs, origin, m2);VectorMultiply(m2, m2, m2); + return sqrt(max(m1[0], m2[0]) + max(m1[1], m2[1]) + max(m1[2], m2[2])); +} void Mathlib_Init(void) { @@ -538,3 +711,48 @@ void Mathlib_Init(void) ixtable[a] = 1.0f / a; } +#include "matrixlib.h" + +void Matrix4x4_Print(const matrix4x4_t *in) +{ + Con_Printf("%f %f %f %f\n%f %f %f %f\n%f %f %f %f\n%f %f %f %f\n" + , in->m[0][0], in->m[0][1], in->m[0][2], in->m[0][3] + , in->m[1][0], in->m[1][1], in->m[1][2], in->m[1][3] + , in->m[2][0], in->m[2][1], in->m[2][2], in->m[2][3] + , in->m[3][0], in->m[3][1], in->m[3][2], in->m[3][3]); +} + +int Math_atov(const char *s, vec3_t out) +{ + int i; + VectorClear(out); + if (*s == '\'') + s++; + for (i = 0;i < 3;i++) + { + while (*s == ' ' || *s == '\t') + s++; + out[i] = atof (s); + if (out[i] == 0 && *s != '-' && *s != '+' && (*s < '0' || *s > '9')) + break; // not a number + while (*s && *s != ' ' && *s !='\t' && *s != '\'') + s++; + if (*s == '\'') + break; + } + return i; +} + +void BoxFromPoints(vec3_t mins, vec3_t maxs, int numpoints, vec_t *point3f) +{ + int i; + VectorCopy(point3f, mins); + VectorCopy(point3f, maxs); + for (i = 1, point3f += 3;i < numpoints;i++, point3f += 3) + { + mins[0] = min(mins[0], point3f[0]);maxs[0] = max(maxs[0], point3f[0]); + mins[1] = min(mins[1], point3f[1]);maxs[1] = max(maxs[1], point3f[1]); + mins[2] = min(mins[2], point3f[2]);maxs[2] = max(maxs[2], point3f[2]); + } +} +