264 lines
9.6 KiB
C++
264 lines
9.6 KiB
C++
#include "Contents/EffectPrimitiveMotion.h"
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#include "Contents/EffectPrimitiveState.h"
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#include "Contents/RagEffectState.h"
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#include "Contents/RenderObjectState.h"
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#include "Utility/AffineMatrix.h"
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#include <bit>
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#include <cmath>
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#include <cstring>
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#include <emmintrin.h>
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namespace {
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int Add(int left, std::uint32_t right) {
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return std::bit_cast<int>(static_cast<std::uint32_t>(left) + right);
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}
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int Integer(float value) {
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return _mm_cvttss_si32(_mm_set_ss(value));
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}
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// Preserve every zero product and the original summation order.
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EffectVector3 Forward(float distance, const float* matrix) {
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return {
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((matrix[3] * 0.0f + matrix[0] * 0.0f) + distance * matrix[6]) + matrix[9],
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((matrix[4] * 0.0f + matrix[1] * 0.0f) + distance * matrix[7]) + matrix[10],
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((matrix[5] * 0.0f + matrix[2] * 0.0f) + distance * matrix[8]) + matrix[11]
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};
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}
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}
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// OFFSET: 0x00BB8C50
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// FUNCTION: fn_19785
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bool MoveEffectPrimitive(EffectPrimitiveState& particle, RenderObjectState& render, EffectMotionContext& context) {
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particle.origin = {
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context.parentRender.position[0] + particle.velocity.x, context.parentRender.position[1] + particle.velocity.y,
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context.parentRender.position[2] + particle.velocity.z
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};
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if (static_cast<std::uint32_t>(particle.unknown_0200) == particle.unknown_01E0) {
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particle.unknown_0138 = 1;
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constexpr float sentinel = 0.0001f;
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if (particle.unknown_02C8 != sentinel) {
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particle.unknown_0358 = particle.unknown_02C8;
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}
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if (particle.unknown_02CC != sentinel) {
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particle.unknown_0364 = particle.unknown_02CC;
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}
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if (particle.unknown_029C != sentinel) {
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particle.unknown_02BC = particle.unknown_029C;
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}
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if (particle.unknown_02C4 != sentinel) {
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particle.unknown_035C = std::bit_cast<std::uint32_t>(particle.unknown_02C4);
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}
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if (particle.unknown_02D0 != sentinel) {
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particle.unknown_0368 = std::bit_cast<std::uint32_t>(particle.unknown_02D0);
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}
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if (particle.unknown_02A0 != sentinel) {
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particle.unknown_02C0 = particle.unknown_02A0;
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}
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if (particle.unknown_02A4.x != sentinel) {
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particle.unknown_0370.x = particle.unknown_02A4.x;
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}
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if (particle.unknown_02A4.y != sentinel) {
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particle.unknown_0370.y = particle.unknown_02A4.y;
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}
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if (particle.unknown_02A4.z != sentinel) {
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particle.unknown_0370.z = particle.unknown_02A4.z;
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}
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particle.unknown_02C8 = sentinel;
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particle.unknown_02CC = sentinel;
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particle.unknown_029C = sentinel;
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particle.unknown_02C4 = sentinel;
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particle.unknown_02D0 = sentinel;
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particle.unknown_02A0 = sentinel;
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particle.unknown_02A4 = {sentinel, sentinel, sentinel};
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particle.unknown_02B0 = {sentinel, sentinel, sentinel};
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}
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particle.unknown_0370.x = particle.unknown_0370.x + particle.unknown_03AC.x;
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particle.unknown_0370.y = particle.unknown_03AC.y + particle.unknown_0370.y;
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particle.unknown_0370.z = particle.unknown_03AC.z + particle.unknown_0370.z;
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particle.unknown_0358 = std::bit_cast<float>(particle.unknown_035C) + particle.unknown_0358;
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particle.unknown_02BC = particle.unknown_02C0 + particle.unknown_02BC;
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particle.unknown_0364 = std::bit_cast<float>(particle.unknown_0368) + particle.unknown_0364;
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particle.unknown_0330 = std::bit_cast<std::uint32_t>(
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std::bit_cast<float>(particle.unknown_033C) + std::bit_cast<float>(particle.unknown_0330)
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);
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particle.unknown_0334 = std::bit_cast<std::uint32_t>(
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std::bit_cast<float>(particle.unknown_0340) + std::bit_cast<float>(particle.unknown_0334)
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);
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if ((particle.flags & 0x400u) != 0) {
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particle.unknown_0370 = {};
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particle.unknown_0370 = Forward(particle.unknown_02BC, particle.matrix1);
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particle.offset.x = particle.unknown_0370.x + particle.offset.x;
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particle.offset.z = particle.unknown_0370.z + particle.offset.z;
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particle.offset.y = particle.unknown_0370.y + particle.offset.y;
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} else if ((particle.flags & 0x100u) != 0) {
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particle.offset.x = particle.unknown_0370.x + particle.offset.x;
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particle.offset.y = particle.unknown_0370.y + particle.offset.y;
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particle.offset.z = particle.unknown_0370.z + particle.offset.z;
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} else {
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particle.unknown_0370 = Forward(particle.unknown_02BC, particle.matrix1);
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particle.offset.x = particle.unknown_0370.x + particle.offset.x;
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particle.offset.z = particle.unknown_0370.z + particle.offset.z;
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particle.offset.y = particle.unknown_0370.y + particle.offset.y;
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}
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if ((particle.flags & 0x400u) != 0) {
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const float x = particle.parent->offset[0] - render.position[0];
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const float z = particle.parent->offset[2] - render.position[2];
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const float distance = std::sqrt(z * z + x * x);
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if (3.0f >= distance) {
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particle.unknown_014C.x = std::bit_cast<float>(1u);
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return false;
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}
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particle.unknown_030C = std::bit_cast<std::uint32_t>(render.angle);
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}
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render.position[0] = particle.origin.x + particle.offset.x;
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render.position[1] = particle.offset.y + particle.origin.y;
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render.position[2] = particle.offset.z + particle.origin.z;
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particle.unknown_0354 = particle.unknown_0358 + particle.unknown_0354;
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particle.unknown_0360 = particle.unknown_0364 + particle.unknown_0360;
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particle.unknown_030C = std::bit_cast<std::uint32_t>(
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std::bit_cast<float>(particle.unknown_030C) + std::bit_cast<float>(particle.unknown_0330)
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);
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particle.unknown_0310 = std::bit_cast<std::uint32_t>(
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std::bit_cast<float>(particle.unknown_0310) + std::bit_cast<float>(particle.unknown_0334)
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);
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if (!(particle.unknown_0360 <= particle.unknown_036C)) {
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particle.unknown_0368 = 0;
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particle.unknown_0364 = 0;
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}
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AffineMatrix matrix;
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if ((particle.flags & 0x200u) != 0) {
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matrix.SetZRotation(context.cameraPitch);
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} else if ((particle.flags & 0x40u) != 0) {
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particle.unknown_030C = std::bit_cast<std::uint32_t>(context.cameraYaw + 90.0f);
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particle.unknown_0314 = context.cameraPitch;
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matrix.SetXRotation(ClientRadians(Integer(std::bit_cast<float>(particle.unknown_0310))));
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matrix.RotateZ(ClientRadians(Integer(particle.unknown_0314)));
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} else {
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matrix.SetZRotation(ClientRadians(Integer(particle.unknown_0314)));
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matrix.RotateX(ClientRadians(Integer(std::bit_cast<float>(particle.unknown_0310))));
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}
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const float angle = (particle.flags & 0x200u) != 0 ? render.angle : std::bit_cast<float>(particle.unknown_030C);
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matrix.RotateY(ClientRadians(Integer(angle)));
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std::memcpy(particle.matrix2, matrix.values, sizeof(particle.matrix2));
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if ((particle.flags & 2u) != 0) {
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const auto index = particle.unknown_01D4;
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particle.unknown_01D4 = index + 1u == 10u ? 0u : index + 1u;
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const float offset = static_cast<float>(std::bit_cast<int>(index)) / 10.0f;
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particle.unknown_02E4 = std::bit_cast<std::uint32_t>(offset);
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particle.unknown_02E8 = offset + 1.0f;
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}
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if ((particle.flags & 0x10u) != 0) {
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particle.parent->offset[0] = particle.velocity.x + particle.offset.x;
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particle.parent->offset[1] = particle.offset.y + particle.velocity.y;
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particle.parent->offset[2] = particle.offset.z + particle.velocity.z;
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}
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if (
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(particle.flags & 4u) != 0 && render.position[1] > context.ground.Height(render.position[0], render.position[2])
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) {
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particle.flags &= ~4u;
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particle.unknown_01E0 = static_cast<std::uint32_t>(particle.lifetime) - 25u;
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particle.unknown_02BC = 0;
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particle.parent->unknown_0170 = 1;
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}
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const int frame = std::bit_cast<int>(particle.unknown_01E0);
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if ((particle.flags & 0x20u) != 0 && frame % std::bit_cast<int>(particle.unknown_01CC) == 0) {
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particle.unknown_0364 *= -1.0f;
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}
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const bool wrap254 = (particle.flags & 0x800u) != 0;
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const bool gated = wrap254 && (particle.red == 254 || particle.green == 254 || particle.blue == 254);
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bool advance = true;
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if (gated) {
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if (particle.unknown_0234 != 0) {
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++particle.unknown_01FC;
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}
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advance = particle.unknown_0234 == particle.unknown_01FC;
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}
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if (advance) {
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particle.red = Add(particle.red, particle.unknown_0248);
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particle.green = Add(particle.green, particle.unknown_024C);
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particle.blue = Add(particle.blue, particle.unknown_0250);
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if (gated) {
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particle.unknown_01FC = 0;
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}
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}
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if (wrap254) {
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particle.red = particle.red > 254 ? 0 : particle.red < 0 ? 254 : particle.red;
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particle.green = particle.green > 254 ? 0 : particle.green < 0 ? 254 : particle.green;
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particle.blue = particle.blue > 254 ? 0 : particle.blue < 0 ? 254 : particle.blue;
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} else {
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particle.red = particle.red > 255 ? 0 : particle.red < 0 ? 255 : particle.red;
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particle.green = particle.green > 255 ? 255 : particle.green < 0 ? 0 : particle.green;
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particle.blue = particle.blue > 255 ? 255 : particle.blue < 0 ? 0 : particle.blue;
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}
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particle.UpdateColor();
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if (std::bit_cast<int>(particle.unknown_01E0) % particle.unknown_01E8 == 0) {
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const auto next = render.unknown_003C + 1u;
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render.unknown_003C = next;
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if (particle.unknown_0254 != 0) {
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render.unknown_003C = std::bit_cast<int>(next) % std::bit_cast<int>(particle.textureCount);
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} else if (next == particle.textureCount) {
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return false;
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}
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}
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return true;
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}
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// OFFSET: 0x00BAE7D0
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// FUNCTION: fn_19769
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// Only the incremented signed frame/lifetime comparison determines expiry.
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bool UpdateEffectPrimitive15(
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EffectPrimitiveState& particle,
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RenderObjectState& render,
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EffectMotionContext& context,
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int updateTick
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) {
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if (!particle.parent) {
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return false;
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}
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if (updateTick == 0) {
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return true;
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}
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MoveEffectPrimitive(particle, render, context);
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++particle.unknown_01E0;
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return std::bit_cast<int>(particle.unknown_01E0) <= particle.lifetime;
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}
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