metaforce/Runtime/Graphics/CRainSplashGenerator.hpp

76 lines
2.6 KiB
C++

#pragma once
#include "RetroTypes.hpp"
#include "CRandom16.hpp"
#include "zeus/CVector3f.hpp"
#include "Graphics/CLineRenderer.hpp"
namespace urde
{
class CStateManager;
class CRainSplashGenerator
{
struct SSplashLine
{
float x0_t = 0.f;
float x4_xEnd = 0.f;
float x8_yEnd = 0.f;
float xc_speed = 4.f;
float x10_zParabolaHeight = 0.015625f;
u8 x14_ = 3;
u8 x15_length = 1;
bool x16_active = true; // used to be one-bit bitfield
mutable CLineRenderer m_renderer;
explicit SSplashLine(boo::IGraphicsDataFactory::Context& ctx);
void Update(float dt, CStateManager& mgr);
void Draw(float alpha, float dt, const zeus::CVector3f& pos) const;
void SetActive() { x16_active = true; }
};
struct SRainSplash
{
rstl::reserved_vector<SSplashLine, 4> x0_lines;
zeus::CVector3f x64_pos;
float x70_ = 0.f;
explicit SRainSplash(boo::IGraphicsDataFactory::Context& ctx);
SRainSplash(const SRainSplash&) = delete;
SRainSplash& operator=(const SRainSplash&) = delete;
SRainSplash(SRainSplash&&) = default;
SRainSplash& operator=(SRainSplash&&) = default;
void Update(float dt, CStateManager& mgr);
bool IsActive() const;
void Draw(float alpha, float dt, const zeus::CVector3f& pos) const;
void SetPoint(const zeus::CVector3f& pos);
};
std::vector<SRainSplash> x0_rainSplashes;
CRandom16 x10_random = {99};
zeus::CVector3f x14_scale;
float x20_generateTimer = 0.f;
float x24_generateInterval;
float x28_dt = 0.f;
float x2c_minZ;
float x30_alpha;
u32 x34_curPoint = 0;
u32 x38_queueTail = 0;
u32 x3c_queueHead = 0;
u32 x40_queueSize = 0;
u32 x44_genRate;
bool x48_24 : 1;
bool x48_25_raining : 1;
void UpdateRainSplashRange(CStateManager& mgr, int start, int end, float dt);
void UpdateRainSplashes(CStateManager& mgr, float magnitude, float dt);
void DoDraw(const zeus::CTransform& xf) const;
static u32 GetNextBestPt(u32 pt, const std::vector<std::pair<zeus::CVector3f, zeus::CVector3f>>& vn,
CRandom16& rand, float minZ);
void AddPoint(const zeus::CVector3f& pos);
public:
CRainSplashGenerator(const zeus::CVector3f& scale, u32 maxSplashes, u32 genRate, float minZ, float alpha);
void Update(float dt, CStateManager& mgr);
void GeneratePoints(const std::vector<std::pair<zeus::CVector3f, zeus::CVector3f>>& vn);
void Draw(const zeus::CTransform& xf) const;
bool IsRaining() const { return x48_25_raining; }
};
}