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#include "JSystem/JSystem.h" // IWYU pragma: keep
#include "JSystem/J3DU/J3DUClipper.h"
#include <cmath>
void J3DUClipper::init() {
mNear = 1.0f;
mFar = 100000.0f;
}
void J3DUClipper::calcViewFrustum() {
static const f32 unused[3] = {0.0f};
f32 f0 = tan(0.5f * mFovY * (M_PI / 180.0f));
f32 f4 = mNear * f0;
f32 f5 = mAspect * f4;
Vec tmp1 = {-f5, -f4, -mNear};
Vec tmp2 = {-f5, f4, -mNear};
Vec tmp3 = {f5, f4, -mNear};
Vec tmp4 = {f5, -f4, -mNear};
VECCrossProduct(&tmp2, &tmp1, &_04);
VECCrossProduct(&tmp3, &tmp2, &_10);
VECCrossProduct(&tmp4, &tmp3, &_1C);
VECCrossProduct(&tmp1, &tmp4, &_28);
VECNormalize(&_04, &_04);
VECNormalize(&_10, &_10);
VECNormalize(&_1C, &_1C);
VECNormalize(&_28, &_28);
}
int J3DUClipper::clip(f32 const (*param_0)[4], Vec param_1, f32 param_2) const {
Vec vec1;
MTXMultVec(param_0, ¶m_1, &vec1);
if (-vec1.z < mNear - param_2) {
return 1;
}
if (-vec1.z > mFar + param_2) {
return 1;
}
if (vec1.x * _04.x + vec1.y * _04.y + vec1.z * _04.z > param_2) {
return 1;
}
if (vec1.x * _10.x + vec1.y * _10.y + vec1.z * _10.z > param_2) {
return 1;
}
if (vec1.x * _1C.x + vec1.y * _1C.y + vec1.z * _1C.z > param_2) {
return 1;
}
if (vec1.x * _28.x + vec1.y * _28.y + vec1.z * _28.z > param_2) {
return 1;
}
return 0;
}
int J3DUClipper::clip(f32 const (*param_1)[4], Vec* param_2, Vec* param_3) const {
s32 local_98[6];
for (int i = 0; i < 6; i++) {
local_98[i] = 0;
}
Vec local_80[8];
local_80[0].x = param_3->x;
local_80[0].y = param_3->y;
local_80[0].z = param_2->z;
local_80[1].x = param_3->x;
local_80[1].y = param_3->y;
local_80[1].z = param_3->z;
local_80[2].x = param_2->x;
local_80[2].y = param_3->y;
local_80[2].z = param_3->z;
local_80[3].x = param_2->x;
local_80[3].y = param_3->y;
local_80[3].z = param_2->z;
local_80[4].x = param_3->x;
local_80[4].y = param_2->y;
local_80[4].z = param_2->z;
local_80[5].x = param_3->x;
local_80[5].y = param_2->y;
local_80[5].z = param_3->z;
local_80[6].x = param_2->x;
local_80[6].y = param_2->y;
local_80[6].z = param_3->z;
local_80[7].x = param_2->x;
local_80[7].y = param_2->y;
local_80[7].z = param_2->z;
for (u32 i = 0; i < 8; i++) {
Vec vec1;
MTXMultVec(param_1, local_80 + i, &vec1);
s32 r4 = 0;
if (-vec1.z < mNear) {
local_98[4]++;
r4 = 1;
}
if (-vec1.z > mFar) {
local_98[5]++;
r4++;
}
if (vec1.x * _04.x + vec1.y * _04.y + vec1.z * _04.z > 0.0f) {
local_98[0]++;
r4++;
}
if (vec1.x * _10.x + vec1.y * _10.y + vec1.z * _10.z > 0.0f) {
local_98[1]++;
r4++;
}
if (vec1.x * _1C.x + vec1.y * _1C.y + vec1.z * _1C.z > 0.0f) {
local_98[2]++;
r4++;
}
if (vec1.x * _28.x + vec1.y * _28.y + vec1.z * _28.z > 0.0f) {
local_98[3]++;
r4++;
}
if (r4 == 0) {
return 0;
}
}
if (local_98[0] == 8) {
return 1;
}
if (local_98[2] == 8) {
return 1;
}
if (local_98[1] == 8) {
return 1;
}
if (local_98[3] == 8) {
return 1;
}
if (local_98[4] == 8) {
return 1;
}
if (local_98[5] == 8) {
return 1;
}
return 0;
}
static char const* const stringBase_8039A984 = " J3DUClipper::mFovy = %f";
static char const* const stringBase_8039A99D = " J3DUClipper::mAspect = %f";
static char const* const stringBase_8039A9B8 = " J3DUClipper::mNear = %f";
static char const* const stringBase_8039A9D1 = " J3DUClipper::mFar = %f";
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