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#include "d/dolzel.h" // IWYU pragma: keep
#include "d/d_npc_lib.h"
#include "SSystem/SComponent/c_math.h"
dNpcLib_lookat_c::dNpcLib_lookat_c() {}
void dNpcLib_lookat_c::init(J3DModel* i_mdl_p, int* param_1, csXyz* param_2, csXyz* param_3) {
int i;
for (i = 0; i < 4; i++) {
field_0xbc[i] = -1;
}
mCount = 0;
for (i = 0; i < 3; i++) {
int a_jntNum = param_1[i];
if (a_jntNum < 0) {
break;
}
JUT_ASSERT(649, a_jntNum < i_mdl_p->getModelData()->getJointNum());
mDoMtx_stack_c::copy(i_mdl_p->getAnmMtx(a_jntNum));
mDoMtx_stack_c::multVecZero(&field_0x04[mCount]);
field_0xbc[i] = a_jntNum;
field_0x94[i] = param_2[i];
field_0x7c[i] = param_3[i];
mCount++;
}
}
void dNpcLib_lookat_c::action(cXyz param_0, cXyz param_1, fopAc_ac_c* param_2, Mtx param_3, int param_4) {
cXyz sp90;
Mtx spA0;
cMtx_copy(param_3, spA0);
spA0[0][3] = spA0[1][3] = spA0[2][3] = 0.0f;
mDoMtx_stack_c::copy(spA0);
mDoMtx_stack_c::inverse();
cMtx_copy(mDoMtx_stack_c::get(), spA0);
for (int i = 0; i < mCount; i++) {
sp90 = field_0x04[i] - param_2->current.pos;
mDoMtx_stack_c::transS(param_2->current.pos);
mDoMtx_stack_c::concat(spA0);
mDoMtx_stack_c::multVec(&sp90, &field_0x04[i]);
}
sp90 = param_0 - param_2->current.pos;
mDoMtx_stack_c::transS(param_2->current.pos);
mDoMtx_stack_c::concat(spA0);
mDoMtx_stack_c::multVec(&sp90, ¶m_0);
sp90 = param_1 - param_2->current.pos;
mDoMtx_stack_c::transS(param_2->current.pos);
mDoMtx_stack_c::concat(spA0);
mDoMtx_stack_c::multVec(&sp90, &field_0x04[mCount]);
setPrm();
update();
cXyz sp84;
cXyz sp78;
s16 sp1A, sp18, sp16, sp14;
f32 var_f30 = 0.0f;
f32 var_f31 = 1.0f;
for (int i = mCount - 1; i >= 0 && param_4 == 1; i--) {
sp84 = param_0 - field_0x04[i];
if (!sp84.isZero()) {
sp84.normalize();
sp78 = field_0x04[mCount] - field_0x04[i];
if (!sp78.isZero()) {
sp78.normalize();
sp1A = -cM_atan2s(sp84.y, sp84.absXZ());
sp18 = cM_atan2s(sp84.x, sp84.z);
sp16 = -cM_atan2s(sp78.y, sp78.absXZ());
sp14 = cM_atan2s(sp78.x, sp78.z);
ANGLE_ADD(field_0x4c[i].x, var_f31 * (f32)(sp1A - sp16));
ANGLE_ADD(field_0x4c[i].y, var_f31 * (f32)(sp18 - sp14));
limitter(&field_0x4c[i].x, field_0x34[i].x, field_0x94[i].x, field_0x7c[i].x);
limitter(&field_0x4c[i].y, field_0x34[i].y, field_0x94[i].y, field_0x7c[i].y);
}
}
var_f31 *= 0.5f;
update();
}
csXyz sp114(csXyz::Zero);
for (int i = 0; i < 4; i++) {
sp114 += field_0x4c[i];
field_0x64[i].x = sp114.x;
field_0x64[i].y = sp114.y;
field_0x64[i].z = 0;
}
}
void dNpcLib_lookat_c::dbView() {}
void dNpcLib_lookat_c::setPrm() {
cXyz sp14;
int i;
for (i = 0; i < mCount; i++) {
field_0x34[i] = csXyz::Zero;
field_0xac[i] = 0.0f;
}
for (i = 0; i < mCount; i++) {
field_0x4c[i].x = 0.4f * field_0x4c[i].x;
field_0x4c[i].y = 0.4f * field_0x4c[i].y;
sp14 = field_0x04[i + 1] - field_0x04[i];
field_0x34[i].x = -cM_atan2s(sp14.y, sp14.absXZ());
field_0x34[i].y = cM_atan2s(sp14.x, sp14.z);
field_0xac[i] = sp14.abs();
}
}
void dNpcLib_lookat_c::update() {
cXyz sp50;
csXyz sp58(csXyz::Zero);
Mtx m;
int i;
for (i = 0; i < mCount; i++) {
mDoMtx_stack_c::XYZrotS(field_0x34[i]);
cMtx_copy(mDoMtx_stack_c::get(), m);
mDoMtx_stack_c::transS(field_0x04[i]);
sp58.x += field_0x4c[i].x;
sp58.y += field_0x4c[i].y;
mDoMtx_stack_c::ZXYrotM(sp58);
mDoMtx_stack_c::concat(m);
sp50.set(0.0f, 0.0f, field_0xac[i]);
mDoMtx_stack_c::multVec(&sp50, &field_0x04[i + 1]);
}
}
int dNpcLib_lookat_c::limitter(s16* o_value, s16 param_1, s16 param_2, s16 param_3) {
int limit = param_1 + *o_value;
BOOL rt = FALSE;
if (param_2 <= limit) {
if (param_2 <= param_1) {
*o_value = 0;
} else {
S16_SUB(*o_value, limit - param_2);
rt = TRUE;
}
}
if (limit <= param_3) {
if (param_1 <= param_3) {
*o_value = 0;
} else {
S16_SUB(*o_value, limit - param_3);
rt = TRUE;
}
}
return 1;
}
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