76 lines
1.9 KiB
C++
76 lines
1.9 KiB
C++
#include "Contents/ModelActor.h"
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#include <bit>
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#include <emmintrin.h>
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#include <windows.h>
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namespace {
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unsigned UnsignedFrame(float value) {
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const unsigned bits = std::bit_cast<unsigned>(value);
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const unsigned magnitude = (bits & 0x7FFFFFFFu) << 1;
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if (bits & 0x80000000u) {
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return magnitude >= 0x7F000000u ? 0xFFFFFFFFu : static_cast<unsigned>(_mm_cvttss_si32(_mm_set_ss(value)));
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}
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if (magnitude >= 0x9F000000u) {
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return 0xFFFFFFFFu;
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}
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return magnitude >= 0x9E000000u ? (magnitude << 7) | 0x80000000u
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: static_cast<unsigned>(_mm_cvttss_si32(_mm_set_ss(value)));
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}
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unsigned UnsignedFrame(double value) {
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if (!(value < 0x1p32) || value <= -1.0) {
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return 0xFFFFFFFFu;
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}
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return value < 0.0 ? 0u : static_cast<unsigned>(value);
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}
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}
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// OFFSET: 0x00AB7930
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// FUNCTION: fn_17493
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void C3dActorV1::Update() {
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if (this->playback != 1 && this->playback != 2) {
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return;
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}
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const unsigned tick = GetTickCount();
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if (tick == this->lastTick) {
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return;
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}
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this->frame = _mm_cvttss_si32(_mm_set_ss(this->speed * 100.0f + static_cast<float>(this->frame)));
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if (this->frame >= this->animationLength) {
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this->frame = this->playback == 1 ? std::bit_cast<int>(static_cast<unsigned>(this->animationLength) - 1u) : 0;
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}
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this->Animate(static_cast<double>(this->frame));
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this->lastTick = tick;
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}
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// OFFSET: 0x00AB7A10
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// FUNCTION: fn_17494
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void C3dActorV2::Update() {
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if (this->playback != 1 && this->playback != 2) {
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return;
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}
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const unsigned tick = GetTickCount();
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unsigned frame = UnsignedFrame(static_cast<float>(tick - this->startTick) * this->speed);
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if (static_cast<double>(frame) >= this->duration) {
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if (this->playback == 1) {
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frame = UnsignedFrame(this->duration - 1.0);
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} else {
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this->startTick = tick;
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frame = 0;
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}
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}
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this->Animate(static_cast<double>(frame));
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}
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