X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=mathlib.c;h=d6170d28977c27645f71b9987887854670d34916;hb=9829ccb76b1b5f2cb18d14cae0092ab94f183ece;hp=83f39a823a48836dd4a09534b224ae556fcdf802;hpb=9a92c162766f97f86ca5ad08771adb11a1e6bee4;p=xonotic%2Fdarkplaces.git diff --git a/mathlib.c b/mathlib.c index 83f39a82..d6170d28 100644 --- a/mathlib.c +++ b/mathlib.c @@ -19,9 +19,10 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ // mathlib.c -- math primitives -#include #include "quakedef.h" +#include + vec3_t vec3_origin = {0,0,0}; float ixtable[4096]; @@ -113,7 +114,7 @@ float m_bytenormals[NUMVERTEXNORMALS][3] = }; #if 0 -qbyte NormalToByte(const vec3_t n) +unsigned char NormalToByte(const vec3_t n) { int i, best; float bestdistance, distance; @@ -133,7 +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); @@ -141,17 +142,6 @@ 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 ) { @@ -215,10 +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); } @@ -231,9 +219,7 @@ 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); } @@ -269,6 +255,24 @@ void RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, + (t0 * vr[2] + t1 * vu[2] + vf[2] * vf[2]) * point[2]; } +/*-----------------------------------------------------------------*/ + +// returns the smallest integer greater than or equal to "value", or 0 if "value" is too big +unsigned int CeilPowerOf2(unsigned int value) +{ + unsigned int ceilvalue; + + if (value > (1U << (sizeof(int) * 8 - 1))) + return 0; + + ceilvalue = 1; + while (ceilvalue < value) + ceilvalue <<= 1; + + return ceilvalue; +} + + /*-----------------------------------------------------------------*/ @@ -293,29 +297,116 @@ void PlaneClassify(mplane_t *p) p->signbits |= 4; } -int BoxOnPlaneSide (const vec3_t emins, const vec3_t emaxs, const mplane_t *p) +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)); + 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; } } @@ -337,20 +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; + } } } } @@ -373,22 +482,116 @@ 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]) + { + 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) { - left[0] = sr*sp*cy+cr*-sy; - left[1] = sr*sp*sy+cr*cy; - left[2] = sr*cp; + 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 @@ -510,7 +713,7 @@ void Mathlib_Init(void) #include "matrixlib.h" -void Matrix4x4_Print (const matrix4x4_t *in) +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] @@ -540,3 +743,16 @@ int Math_atov(const char *s, vec3_t out) 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]); + } +} +