e168b4e4a6
Owner-authorized source migration: 31 helper-only translation units were merged into their callers or existing inline headers; both build manifests updated. Includes the preserved source payload, Lua configuration matching wowdecomp, and exact malloca expansion without diagnostic pragmas. 449 native units compiled locally and 449 staged units compiled by the pinned server toolchain. No previously byte-matched function regressed. Compiler mapping diagnostics remain recorded as needs_cleanup, not accepted or peer-confirmed. Existing independent review records are preserved. README.md is intentionally unchanged.
81 lines
2.3 KiB
C++
81 lines
2.3 KiB
C++
#include "Contents/Camera/CameraState.h"
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#include "Utility/Math/AffineMatrix.h"
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#include "Utility/Math/ScalarConversion.h"
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#include <cstdlib>
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#include <windows.h>
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#include <timeapi.h>
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namespace {
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// INLINED
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float Jitter(float divisor) {
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const int remainder = std::rand() % 5;
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const int selected = remainder >= 0 ? remainder : 0;
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return static_cast<float>(selected - 2) / divisor;
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}
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}
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// OFFSET: 0x00ADCAC0
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// FUNCTION: fn_17932
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void CameraShake::Start(int enabled, unsigned duration, float horizontal, float distance, float pitch) {
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this->enabled = enabled;
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const unsigned time = timeGetTime();
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this->distance = distance;
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this->start = time;
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this->horizontal = horizontal;
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this->pitch = pitch;
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this->duration = duration == 0 ? 650u : (duration == 1 ? 200u : duration);
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}
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// OFFSET: 0x00ADCB30
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// FUNCTION: fn_17933
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void CameraShake::SetAmplitudes(float horizontal, float distance, float pitch) {
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this->horizontal = horizontal;
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this->pitch = pitch;
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this->distance = distance;
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}
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// OFFSET: 0x00ADC7A0
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// FUNCTION: fn_17931
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void CameraShake::Apply(CameraState& camera, int& frameLatch) {
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if (!this->enabled) {
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return;
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}
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if (timeGetTime() >= this->start + this->duration) {
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camera.target[0] = camera.desiredTarget[0];
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camera.target[1] = camera.desiredTarget[1];
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camera.target[2] = camera.desiredTarget[2];
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camera.distance = camera.desiredDistance;
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this->enabled = 0;
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camera.pitch = camera.desiredPitch;
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return;
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}
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if (!frameLatch) {
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return;
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}
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frameLatch = 0;
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static float horizontal = this->horizontal;
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const float horizontalX = Jitter(10.0f) + horizontal;
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const int yawX = TruncateToInt(camera.yaw);
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const float x = static_cast<float>(static_cast<double>(ClientCosine(yawX)) * horizontalX);
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camera.target[0] = x + camera.target[0];
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const float horizontalZ = Jitter(10.0f) + horizontal;
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const int yawZ = TruncateToInt(camera.yaw);
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const float sine = -ClientSine(yawZ);
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horizontal = -horizontal;
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camera.target[2] = horizontalZ * sine + camera.target[2];
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static float distance = this->distance;
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const float distanceDelta = Jitter(10.0f) + distance;
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distance = -distance;
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camera.distance = distanceDelta + camera.distance;
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static float pitch = this->pitch;
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const float pitchDelta = Jitter(15.0f) + pitch;
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pitch = -pitch;
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camera.pitch = pitchDelta + camera.pitch;
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}
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