tww/src/JSystem/JParticle/JPAMath.cpp

//
// Generated by dtk
// Translation Unit: JPAMath.cpp
//

#include "JSystem/JParticle/JPAMath.h"
#include "JSystem/JMath/JMath.h"
#include "JSystem/JMath/JMATrigonometric.h"
#include "dolphin/types.h"

static void dummy() {
    fabsf(1.0f);
}

/* 8025991C-802599A0       .text JPAGetYZRotateMtx__FssPA4_f */
void JPAGetYZRotateMtx(s16 y, s16 z, Mtx dst) {
    f32 cosY = JMASCos(y);
    f32 cosZ = JMASCos(z);
    f32 sinY = JMASSin(y);
    f32 sinZ = JMASSin(z);
    dst[0][0] = (cosY * cosZ);
    dst[0][1] = -sinZ;
    dst[0][2] = (sinY * cosZ);
    dst[1][0] = (cosY * sinZ);
    dst[1][1] = cosZ;
    dst[1][2] = (sinY * sinZ);
    dst[2][0] = -sinY;
    dst[2][2] = cosY;
    dst[2][3] = 0.0f;
    dst[2][1] = 0.0f;
    dst[1][3] = 0.0f;
    dst[0][3] = 0.0f;
}

/* 802599A0-80259A64       .text JPAGetXYZRotateMtx__FsssPA4_f */
void JPAGetXYZRotateMtx(s16 x, s16 y, s16 z, Mtx dst) {
    f32 cosx = JMASCos(x);
    f32 cosY = JMASCos(y);
    f32 cosZ = JMASCos(z);
    f32 sinX = JMASSin(x);
    f32 sinY = JMASSin(y);
    f32 sinZ = JMASSin(z);
    dst[0][0] = cosY * cosZ;
    dst[1][0] = cosY * sinZ;
    dst[2][0] = -sinY;
    dst[2][1] = sinX * cosY;
    dst[2][2] = cosx * cosY;
    f32 cosXsinZ = cosx * sinZ;
    f32 sinXcosZ = sinX * cosZ;
    dst[0][1] = sinXcosZ * sinY - cosXsinZ;
    dst[1][2] = cosXsinZ * sinY - sinXcosZ;
    f32 sinXsinZ = sinX * sinZ;
    f32 cosXcosZ = cosx * cosZ;
    dst[0][2] = sinXsinZ + cosXcosZ * sinY;
    dst[1][1] = cosXcosZ + sinXsinZ * sinY;
    dst[2][3] = 0.0f;
    dst[1][3] = 0.0f;
    dst[0][3] = 0.0f;
}

/* 80259A64-80259B6C       .text JPAGetDirMtx__FRCQ29JGeometry8TVec3<f>PA4_f */
void JPAGetDirMtx(const JGeometry::TVec3<f32>& dir, Mtx dst) {
    /* Nonmatching */
    JGeometry::TVec3<f32> perp;
    perp.x = dir.y;
    perp.y = -dir.x;
    f32 z = dir.z;
    perp.z = 0.0f;

    f32 mag = perp.squared();
    mag *= JGeometry::TUtil<f32>::inv_sqrt(mag);
    if (mag <= JGeometry::TUtil<f32>::epsilon()) {
        perp.x = perp.y = 0.0f;
    } else {
        perp.x *= (1.0f / mag);
        perp.y *= (1.0f / mag);
    }

    f32 x = perp.x, y = perp.y;
    dst[0][0] = x*x + z * (1.0f - x*x);
    dst[0][1] = (1.0f - z) * (x * y);
    dst[0][2] = -y * mag;
    dst[0][3] = 0.0f;

    dst[1][0] = (1.0f - z) * (x * y);
    dst[1][1] = y*y + z * (1.0f - y*y);
    dst[1][2] = x*mag;
    dst[1][3] = 0.0f;

    dst[2][0] = y * mag;
    dst[2][1] = -x * mag;
    dst[2][2] = z;
    dst[2][3] = 0.0f;
}

/* 80259B6C-80259C90       .text JPASetSVecfromMtx__FPA4_fRQ29JGeometry8TVec3<f> */
void JPASetSVecfromMtx(Mtx mtx, JGeometry::TVec3<f32>& scale) {
    f32 m00 = mtx[0][0], m10 = mtx[1][0], m20 = mtx[2][0];
    scale.x = JGeometry::TUtil<f32>::sqrt(m00*m00 + m10*m10 + m20*m20);

    f32 m01 = mtx[0][1], m11 = mtx[1][1], m21 = mtx[2][1];
    scale.y = JGeometry::TUtil<f32>::sqrt(m01*m01 + m11*m11 + m21*m21);

    f32 m02 = mtx[0][2], m12 = mtx[1][2], m22 = mtx[2][2];
    scale.z = JGeometry::TUtil<f32>::sqrt(m02*m02 + m12*m12 + m22*m22);
}

/* 80259C90-80259CB8       .text JPASetRMtxTVecfromMtx__FPA4_fPA4_fRQ29JGeometry8TVec3<f> */
void JPASetRMtxTVecfromMtx(Mtx src, Mtx dst, JGeometry::TVec3<f32>& translate) {
    JGeometry::TVec3<f32> scale;
    JPASetRMtxSTVecfromMtx(src, dst, scale, translate);
}

/* 80259CB8-80259DD0       .text JPASetRMtxSTVecfromMtx__FPA4_fPA4_fRQ29JGeometry8TVec3<f>RQ29JGeometry8TVec3<f> */
void JPASetRMtxSTVecfromMtx(Mtx src, Mtx dst, JGeometry::TVec3<f32>& scale, JGeometry::TVec3<f32>& translate) {
    JPASetSVecfromMtx(src, scale);
    MTXIdentity(dst);
    if (scale.x != 0.0f) {
        f32 inv = 1.0f / scale.x;
        dst[0][0] = src[0][0] * inv;
        dst[1][0] = src[1][0] * inv;
        dst[2][0] = src[2][0] * inv;
    }
    if (scale.y != 0.0f) {
        f32 inv = 1.0f / scale.y;
        dst[0][1] = src[0][1] * inv;
        dst[1][1] = src[1][1] * inv;
        dst[2][1] = src[2][1] * inv;
    }
    if (scale.z != 0.0f) {
        f32 inv = 1.0f / scale.z;
        dst[0][2] = src[0][2] * inv;
        dst[1][2] = src[1][2] * inv;
        dst[2][2] = src[2][2] * inv;
    }
    translate.set(src[0][3], src[1][3], src[2][3]);
}

/* 80259DD0-80259E7C       .text JPAGetKeyFrameValue__FfUsPCf */
f32 JPAGetKeyFrameValue(f32 time, u16 frameNum, const f32* pFrames) {
    /* keyframes are time, value, tangent out, tangent in */

    if (time < pFrames[0])
        return pFrames[1];

    if (pFrames[(frameNum - 1) * 4] <= time)
        return pFrames[(frameNum - 1) * 4 + 1];

    /* binary search; find keyframe */
    s32 frame = frameNum;
    while (frame > 1) {
        u32 idx = frame / 2;
        if (time >= pFrames[idx * 4]) {
            pFrames += idx * 4;
            frame -= idx;
        } else {
            frame = idx;
        }
    }

    return JMAHermiteInterpolation(time, pFrames[0], pFrames[1], pFrames[3], pFrames[4], pFrames[5], pFrames[6]);
}

/* 80259E7C-80259EE8       .text JPAGetUnitVec__FssRQ29JGeometry8TVec3<f> */
void JPAGetUnitVec(s16 x, s16 y, JGeometry::TVec3<f32>& dst) {
    f32 sinX = JMASSin(x);
    dst.x = sinX * JMASCos(y);
    dst.y = sinX * JMASSin(y);
    dst.z = JMASCos(x);
}