metaforce/Runtime/World/CScriptSound.cpp

#include "Runtime/World/CScriptSound.hpp"

#include "Runtime/CStateManager.hpp"
#include "Runtime/Character/CModelData.hpp"
#include "Runtime/Collision/CMaterialList.hpp"
#include "Runtime/World/CActorParameters.hpp"
#include "Runtime/World/CWorld.hpp"

#include "TCastTo.hpp" // Generated file, do not modify include path

namespace metaforce {
bool CScriptSound::sFirstInFrame = false;

CScriptSound::CScriptSound(TUniqueId uid, std::string_view name, const CEntityInfo& info, const zeus::CTransform& xf,
                           u16 soundId, bool active, float maxDist, float distComp, float startDelay, u32 minVol,
                           u32 vol, u32 w3, u32 prio, u32 pan, u32 w6, bool looped, bool nonEmitter, bool autoStart,
                           bool occlusionTest, bool acoustics, bool worldSfx, bool allowDuplicates, s32 pitch)
: CActor(uid, active, name, info, xf, CModelData::CModelDataNull(), CMaterialList(EMaterialTypes::NoStepLogic),
         CActorParameters::None(), kInvalidUniqueId)
, xfc_startDelay(startDelay)
, x100_soundId(CSfxManager::TranslateSFXID(soundId))
, x104_maxDist(maxDist)
, x108_distComp(distComp)
, x10c_minVol(minVol / 127.f)
, x10e_vol(vol / 127.f)
, x110_(w3)
, x112_prio(s16(prio))
, x114_pan(amuse::convertMusyXPanToAmusePan(pan))
, x116_(w6)
, x118_pitch(pitch / 8192.f)
, x11c_25_looped(looped)
, x11c_26_nonEmitter(nonEmitter)
, x11c_27_autoStart(autoStart)
, x11c_28_occlusionTest(occlusionTest)
, x11c_29_acoustics(acoustics)
, x11c_30_worldSfx(worldSfx)
, x11d_24_allowDuplicates(allowDuplicates) {
  if (x11c_30_worldSfx && (!x11c_26_nonEmitter || !x11c_25_looped)) {
    x11c_30_worldSfx = false;
  }
}

void CScriptSound::Accept(IVisitor& visitor) { visitor.Visit(this); }

void CScriptSound::PreThink(float dt, CStateManager& mgr) {
  CEntity::PreThink(dt, mgr);
  sFirstInFrame = true;
  x11d_25_processedThisFrame = false;
}

constexpr CMaterialFilter kSolidFilter =
    CMaterialFilter::MakeIncludeExclude({EMaterialTypes::Solid}, {EMaterialTypes::ProjectilePassthrough});

float CScriptSound::GetOccludedVolumeAmount(const zeus::CVector3f& pos, const CStateManager& mgr) {
  const zeus::CTransform camXf = mgr.GetCameraManager()->GetCurrentCameraTransform(mgr);
  const zeus::CVector3f soundToCam = camXf.origin - pos;
  const float soundToCamMag = soundToCam.magnitude();
  const zeus::CVector3f soundToCamNorm = soundToCam * (1.f / soundToCamMag);
  const zeus::CVector3f thirdEdge = zeus::skUp - soundToCamNorm * soundToCamNorm.dot(zeus::skUp);
  const zeus::CVector3f cross = soundToCamNorm.cross(thirdEdge);
  static float kInfluenceAmount = 3.f / soundToCamMag;
  static float kInfluenceIncrement = kInfluenceAmount;

  int totalCount = 0;
  int invalCount = 0;
  float f17 = -kInfluenceAmount;
  while (f17 <= kInfluenceAmount) {
    const zeus::CVector3f angledDir = thirdEdge * f17 + soundToCamNorm;
    float f16 = -kInfluenceAmount;
    while (f16 <= kInfluenceAmount) {
      if (mgr.RayStaticIntersection(pos, (cross * f16 + angledDir).normalized(), soundToCamMag, kSolidFilter)
              .IsInvalid()) {
        ++invalCount;
      }
      ++totalCount;
      f16 += kInfluenceIncrement;
    }
    f17 += kInfluenceIncrement;
  }

  return invalCount / float(totalCount) * 0.42f + 0.58f;
}

void CScriptSound::Think(float dt, CStateManager& mgr) {
  if (x11c_31_selfFree && (!GetActive() || x11c_25_looped || !x11c_27_autoStart)) {
    mgr.FreeScriptObject(GetUniqueId());
  } else if (GetActive()) {
    if (!x11c_25_looped && x11c_27_autoStart && !x11c_24_playRequested && xec_sfxHandle &&
        !CSfxManager::IsPlaying(xec_sfxHandle)) {
      mgr.FreeScriptObject(GetUniqueId());
    }

    if (!x11c_26_nonEmitter && xec_sfxHandle) {
      if (xf8_updateTimer <= 0.f) {
        xf8_updateTimer = 0.25f;
        CSfxManager::UpdateEmitter(xec_sfxHandle, GetTranslation(), zeus::skZero3f, xf2_maxVolUpd);
      } else {
        xf8_updateTimer -= dt;
      }
    }

    if (xec_sfxHandle && !x11c_26_nonEmitter && x11c_28_occlusionTest) {
      if (xe8_occUpdateTimer <= 0.f && sFirstInFrame) {
        sFirstInFrame = false;
        const float occVol = GetOccludedVolumeAmount(GetTranslation(), mgr);
        const float newMaxVol = std::max(occVol * x10e_vol, x10c_minVol);
        if (newMaxVol != xf0_maxVol) {
          xf0_maxVol = newMaxVol;
          const float delta = xf0_maxVol - xf2_maxVolUpd;
          xf4_maxVolUpdDelta = delta / 10.5f;
          if (xf4_maxVolUpdDelta == 0.f) {
            if (xf2_maxVolUpd < xf0_maxVol) {
              xf4_maxVolUpdDelta = 1.f / 127.f;
            } else {
              xf4_maxVolUpdDelta = -1.f / 127.f;
            }
          }
        }
        xe8_occUpdateTimer = 0.5f;
      } else {
        xe8_occUpdateTimer -= dt;
      }

      if (xf2_maxVolUpd != xf0_maxVol) {
        xf2_maxVolUpd += xf4_maxVolUpdDelta;
        if (xf4_maxVolUpdDelta > 0.f && xf2_maxVolUpd > xf0_maxVol) {
          xf2_maxVolUpd = xf0_maxVol;
        }
        if (xf4_maxVolUpdDelta < 0.f && xf2_maxVolUpd < xf0_maxVol) {
          xf2_maxVolUpd = xf0_maxVol;
        }
        CSfxManager::UpdateEmitter(xec_sfxHandle, GetTranslation(), zeus::skZero3f, xf2_maxVolUpd);
      }
    }

    if (x11c_24_playRequested) {
      xfc_startDelay -= dt;
      if (xfc_startDelay <= 0.f) {
        x11c_24_playRequested = false;
        PlaySound(mgr);
      }
    }

    if (x118_pitch != 0.f && xec_sfxHandle) {
      CSfxManager::PitchBend(xec_sfxHandle, x118_pitch);
    }
  }
}

void CScriptSound::AcceptScriptMsg(EScriptObjectMessage msg, TUniqueId uid, CStateManager& mgr) {
  CActor::AcceptScriptMsg(msg, uid, mgr);

  switch (msg) {
  case EScriptObjectMessage::Registered: {
    if (GetActive() && x11c_27_autoStart) {
      x11c_24_playRequested = true;
    }
    x11c_31_selfFree = mgr.GetIsGeneratingObject();
  } break;
  case EScriptObjectMessage::Play: {
    if (GetActive()) {
      PlaySound(mgr);
    }
  } break;
  case EScriptObjectMessage::Stop: {
    if (GetActive()) {
      StopSound(mgr);
    }
  } break;
  case EScriptObjectMessage::Deactivate: {
    StopSound(mgr);
  } break;
  case EScriptObjectMessage::Activate: {
    if (GetActive()) {
      x11c_24_playRequested = true;
    }
  } break;
  case EScriptObjectMessage::Deleted: {
    if (!x11c_30_worldSfx) {
      StopSound(mgr);
    }
  } break;
  default:
    break;
  }
}

void CScriptSound::PlaySound(CStateManager& mgr) {
  if ((!x11d_24_allowDuplicates && xec_sfxHandle && !xec_sfxHandle->IsClosed()) || x11d_25_processedThisFrame) {
    return;
  }

  x11d_25_processedThisFrame = true;
  if (x11c_26_nonEmitter) {
    if (!x11c_30_worldSfx || !mgr.GetWorld()->HasGlobalSound(x100_soundId)) {
      xec_sfxHandle = CSfxManager::SfxStart(x100_soundId, x10e_vol, x114_pan, x11c_29_acoustics, x112_prio,
                                            x11c_25_looped, x11c_30_worldSfx ? kInvalidAreaId : GetAreaIdAlways());
      if (x11c_30_worldSfx) {
        mgr.GetWorld()->AddGlobalSound(xec_sfxHandle);
      }
    }
  } else {
    const float occVol = x11c_28_occlusionTest ? GetOccludedVolumeAmount(GetTranslation(), mgr) : 1.f;
    xf0_maxVol = xf2_maxVolUpd = x10e_vol * occVol;
    CAudioSys::C3DEmitterParmData data = {};
    data.x0_pos = GetTranslation();
    data.x18_maxDist = x104_maxDist;
    data.x1c_distComp = x108_distComp;
    data.x20_flags = 1; // Continuous parameter update
    data.x24_sfxId = x100_soundId;
    data.x26_maxVol = xf0_maxVol;
    data.x27_minVol = x10c_minVol;
    data.x29_prio = 0x7f;
    xec_sfxHandle = CSfxManager::AddEmitter(data, x11c_29_acoustics, x112_prio, x11c_25_looped, GetAreaIdAlways());
  }
}

void CScriptSound::StopSound(CStateManager& mgr) {
  x11c_24_playRequested = false;
  if (x11c_30_worldSfx && x11c_26_nonEmitter) {
    mgr.GetWorld()->StopGlobalSound(x100_soundId);
    xec_sfxHandle.reset();
  } else if (xec_sfxHandle) {
    CSfxManager::RemoveEmitter(xec_sfxHandle);
    xec_sfxHandle.reset();
  }
}
} // namespace metaforce