Mercurial > mm7

annotate VectorTypes.cpp @ 2094:dbd8515924da

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m
author Ritor1
date Thu, 12 Dec 2013 21:42:18 +0600
parents 7a9477135943
children d44b7775fc06
rev   line source
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1 #include <utility>
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2
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3 #include "mm7_data.h"
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4 #include "OurMath.h"
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5
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6 //----- (004621DA) --------------------------------------------------------
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7 uint32_t int_get_vector_length(int32_t x, int32_t y, int32_t z)
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8 {
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9 if (x < y)
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10 {
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11 std::swap(x, y);
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12 }
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13 if (x < z)
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14 {
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15 std::swap(x, z);
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16 }
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17 if (y < z)
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18 {
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19 std::swap(y, z);
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20 }
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21
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22 return x + (11 * y >> 5) + (z >> 2);
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23 }
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24
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25 //----- (0044C362) --------------------------------------------------------
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26 template <class T>
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27 void Vec3<T>::Normalize_float()
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28 {
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29 double x = this->x;
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30 double y = this->y;
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31 double z = this->z;
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32 double s = sqrt(x * x + y * y + z * z);
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33
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34 this->x = bankersRounding(x / s);
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35 this->y = bankersRounding(y / s);
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36 this->z = bankersRounding(z / s);
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37 }
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38
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39 //----- (0043AA99) --------------------------------------------------------
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40 template <class T>
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41 void __fastcall Vec3<T>::Rotate(T sDepth, T sRotY, T sRotX, Vec3<T> v, T *outx, T *outy, T *outz)
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42 {
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43 float cosf_x = cosf(3.14159265f * sRotX / 1024.0f),
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44 sinf_x = sinf(3.14159265f * sRotX / 1024.0f),
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45 cosf_y = cosf(3.14159265f * sRotY / 1024.0f),
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46 sinf_y = sinf(3.14159265f * sRotY / 1024.0f);
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47
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48 *outx = v.x + ((unsigned __int64)(sinf_y * (signed __int64)((unsigned __int64)(cosf_x * (signed __int64)sDepth)>> 16)));
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49 *outy = v.y + ((unsigned __int64)(cosf_y * (signed __int64)((unsigned __int64)(cosf_x * (signed __int64)sDepth)>> 16)));
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50 *outz = v.z + ((unsigned __int64)(sinf_x * (signed __int64)sDepth) >> 16);
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51 }
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52
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53 //----- (0043AB61) --------------------------------------------------------
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54 template <class T>
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55 void Vec3<T>::Normalize(T *x, T *y, T *z)
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56 {
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57 *x *= 65536 / (integer_sqrt(*y * *y + *z * *z + *x * *x) | 1);
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58 *y *= 65536 / (integer_sqrt(*y * *y + *z * *z + *x * *x) | 1);
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59 *z *= 65536 / (integer_sqrt(*y * *y + *z * *z + *x * *x) | 1);
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60 }
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61
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62 template Vec3<int32_t>;