metaforce/Runtime/World/CScriptEffect.cpp

#include "Runtime/World/CScriptEffect.hpp"

#include "Runtime/CPlayerState.hpp"
#include "Runtime/CSimplePool.hpp"
#include "Runtime/CStateManager.hpp"
#include "Runtime/GameGlobalObjects.hpp"
#include "Runtime/Camera/CGameCamera.hpp"
#include "Runtime/Character/CModelData.hpp"
#include "Runtime/Collision/CMaterialList.hpp"
#include "Runtime/Particle/CElementGen.hpp"
#include "Runtime/Particle/CParticleElectric.hpp"
#include "Runtime/World/CActorParameters.hpp"
#include "Runtime/World/CGameLight.hpp"
#include "Runtime/World/CScriptTrigger.hpp"
#include "Runtime/World/CWorld.hpp"

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

namespace metaforce {

u32 CScriptEffect::g_NumParticlesUpdating = 0;
u32 CScriptEffect::g_NumParticlesRendered = 0;

CScriptEffect::CScriptEffect(TUniqueId uid, std::string_view name, const CEntityInfo& info, const zeus::CTransform& xf,
                             const zeus::CVector3f& scale, CAssetId partId, CAssetId elscId, bool hotInThermal,
                             bool noTimerUnlessAreaOccluded, bool rebuildSystemsOnActivate, bool active,
                             bool useRateInverseCamDist, float rateInverseCamDist, float rateInverseCamDistRate,
                             float duration, float durationResetWhileVisible, bool useRateCamDistRange,
                             float rateCamDistRangeMin, float rateCamDistRangeMax, float rateCamDistRangeFarRate,
                             bool combatVisorVisible, bool thermalVisorVisible, bool xrayVisorVisible,
                             const CLightParameters& lParms, bool dieWhenSystemsDone)
: CActor(uid, active, name, info, xf, CModelData::CModelDataNull(), CMaterialList(),
         CActorParameters::None().HotInThermal(hotInThermal), kInvalidUniqueId)
, x10c_partId(partId)
, x110_24_enable(active)
, x110_25_noTimerUnlessAreaOccluded(noTimerUnlessAreaOccluded)
, x110_26_rebuildSystemsOnActivate(rebuildSystemsOnActivate)
, x110_27_useRateInverseCamDist(useRateInverseCamDist)
, x110_28_combatVisorVisible(combatVisorVisible)
, x110_29_thermalVisorVisible(thermalVisorVisible)
, x110_30_xrayVisorVisible(xrayVisorVisible)
, x110_31_anyVisorVisible(xrayVisorVisible && thermalVisorVisible && combatVisorVisible)
, x111_24_useRateCamDistRange(useRateCamDistRange)
, x111_25_dieWhenSystemsDone(dieWhenSystemsDone)
, x114_rateInverseCamDist(rateInverseCamDist)
, x118_rateInverseCamDistSq(rateInverseCamDist * rateInverseCamDist)
, x11c_rateInverseCamDistRate(rateInverseCamDistRate)
, x120_rateCamDistRangeMin(rateCamDistRangeMin)
, x124_rateCamDistRangeMax(rateCamDistRangeMax)
, x128_rateCamDistRangeFarRate(rateCamDistRangeFarRate)
, x12c_remTime(duration)
, x130_duration(duration)
, x134_durationResetWhileVisible(durationResetWhileVisible)
, x138_actorLights(lParms.MakeActorLights()) {
  if (partId.IsValid()) {
    xf8_particleSystemToken = g_SimplePool->GetObj({FOURCC('PART'), partId});
    x104_particleSystem = std::make_unique<CElementGen>(xf8_particleSystemToken);
    zeus::CTransform newXf = xf;
    newXf.origin = zeus::skZero3f;
    x104_particleSystem->SetOrientation(newXf);
    x104_particleSystem->SetGlobalTranslation(xf.origin);
    x104_particleSystem->SetGlobalScale(scale);
    x104_particleSystem->SetParticleEmission(active);
    x104_particleSystem->SetModulationColor(lParms.GetNoLightsAmbient());
    x104_particleSystem->SetModelsUseLights(x138_actorLights != nullptr);
  }

  if (elscId.IsValid()) {
    xe8_electricToken = g_SimplePool->GetObj({FOURCC('ELSC'), elscId});
    xf4_electric = std::make_unique<CParticleElectric>(xe8_electricToken);
    zeus::CTransform newXf = xf;
    newXf.origin = zeus::skZero3f;
    xf4_electric->SetOrientation(newXf);
    xf4_electric->SetGlobalTranslation(xf.origin);
    xf4_electric->SetGlobalScale(scale);
    xf4_electric->SetParticleEmission(active);
    xf4_electric->SetModulationColor(lParms.GetNoLightsAmbient());
  }
  xe7_29_drawEnabled = true;
}

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

void CScriptEffect::AcceptScriptMsg(EScriptObjectMessage msg, TUniqueId uid, CStateManager& mgr) {
  bool oldActive = GetActive();

  switch (msg) {
  case EScriptObjectMessage::Activate:
    if (x110_26_rebuildSystemsOnActivate) {
      if (x104_particleSystem) {
        const zeus::CVector3f scale = x104_particleSystem->GetGlobalScale();
        const zeus::CColor color = x104_particleSystem->GetModulationColor();
        x104_particleSystem = std::make_unique<CElementGen>(xf8_particleSystemToken);
        zeus::CTransform newXf = GetTransform();
        newXf.origin = zeus::skZero3f;
        x104_particleSystem->SetOrientation(newXf);
        x104_particleSystem->SetGlobalTranslation(GetTranslation());
        x104_particleSystem->SetGlobalScale(scale);
        x104_particleSystem->SetModulationColor(color);
        x104_particleSystem->SetModelsUseLights(x138_actorLights != nullptr);
      }

      if (xf4_electric) {
        const zeus::CVector3f scale = xf4_electric->GetGlobalScale();
        const zeus::CColor color = xf4_electric->GetModulationColor();
        xf4_electric = std::make_unique<CParticleElectric>(xe8_electricToken);
        zeus::CTransform newXf = GetTransform();
        newXf.origin = zeus::skZero3f;
        xf4_electric->SetOrientation(newXf);
        xf4_electric->SetGlobalTranslation(GetTranslation());
        xf4_electric->SetGlobalScale(scale);
        xf4_electric->SetModulationColor(color);
      }
    }
    break;
  case EScriptObjectMessage::Registered:
    if (x104_particleSystem && x104_particleSystem->SystemHasLight()) {
      x108_lightId = mgr.AllocateUniqueId();
      mgr.AddObject(new CGameLight(x108_lightId, GetAreaIdAlways(), GetActive(),
                                   std::string("EffectPLight_") + GetName().data(), x34_transform, GetUniqueId(),
                                   x104_particleSystem->GetLight(), x10c_partId.Value(), 1, 0.f));
    }
    break;
  case EScriptObjectMessage::Deleted:
    if (x108_lightId != kInvalidUniqueId) {
      mgr.FreeScriptObject(x108_lightId);
      x108_lightId = kInvalidUniqueId;
    }
    break;
  case EScriptObjectMessage::InitializedInArea:
    for (const SConnection& conn : x20_conns) {
      if ((conn.x0_state == EScriptObjectState::Modify && conn.x4_msg == EScriptObjectMessage::Follow) ||
          (conn.x0_state == EScriptObjectState::InheritBounds && conn.x4_msg == EScriptObjectMessage::Activate)) {
        const auto search = mgr.GetIdListForScript(conn.x8_objId);
        for (auto it = search.first; it != search.second; ++it) {
          if (TCastToConstPtr<CScriptTrigger>(mgr.GetObjectById(it->second))) {
            x13c_triggerId = it->second;
          }
        }
      }
    }
    break;
  default:
    break;
  }

  CActor::AcceptScriptMsg(msg, uid, mgr);

  const TCastToPtr<CActor> light = mgr.ObjectById(x108_lightId);
  mgr.SendScriptMsg(light, uid, msg);

  if (oldActive != GetActive()) {
    if (GetActive()) {
      std::vector<TUniqueId> playIds;
      for (const SConnection& conn : x20_conns) {
        if (conn.x0_state != EScriptObjectState::Play || conn.x4_msg != EScriptObjectMessage::Activate) {
          continue;
        }

        const TUniqueId scriptId = mgr.GetIdForScript(conn.x8_objId);
        if (scriptId != kInvalidUniqueId) {
          playIds.push_back(scriptId);
        }
      }

      if (!playIds.empty()) {
        const TCastToConstPtr<CActor> otherAct =
            mgr.GetObjectById(playIds[u32(0.99f * playIds.size() * mgr.GetActiveRandom()->Float())]);
        if (otherAct) {
          SetTransform(otherAct->GetTransform());
          if (light) {
            light->SetTransform(otherAct->GetTransform());
          }
        }
      }
    }

    x110_24_enable = true;
    if (x104_particleSystem) {
      x104_particleSystem->SetParticleEmission(GetActive());
    }
    if (xf4_electric) {
      xf4_electric->SetParticleEmission(GetActive());
    }

    if (GetActive()) {
      x12c_remTime = zeus::max(x12c_remTime, x130_duration);
    }
  }
}

void CScriptEffect::PreRender(CStateManager& mgr, const zeus::CFrustum&) {
  if (x110_27_useRateInverseCamDist || x111_24_useRateCamDistRange) {
    float genRate = 1.f;
    const CGameCamera* cam = mgr.GetCameraManager()->GetCurrentCamera(mgr);
    const float camMagSq = (cam->GetTranslation() - GetTranslation()).magSquared();

    float camMag = 0.f;
    if (camMagSq > 0.001f) {
      camMag = std::sqrt(camMagSq);
    }
    if (x110_27_useRateInverseCamDist && camMagSq < x118_rateInverseCamDistSq) {
      genRate = (1.f - x11c_rateInverseCamDistRate) * (camMag / x114_rateInverseCamDist) + x11c_rateInverseCamDistRate;
    }
    if (x111_24_useRateCamDistRange) {
      const float t = zeus::min(1.f, zeus::max(0.f, camMag - x120_rateCamDistRangeMin) /
                                         (x124_rateCamDistRangeMax - x120_rateCamDistRangeMin));
      genRate = (1.f - t) * genRate + t * x128_rateCamDistRangeFarRate;
    }

    x104_particleSystem->SetGeneratorRate(genRate);
  }

  if (!mgr.GetObjectById(x13c_triggerId)) {
    x13c_triggerId = kInvalidUniqueId;
  }
}

void CScriptEffect::AddToRenderer(const zeus::CFrustum& frustum, CStateManager& mgr) {
  if (!x111_26_canRender) {
    x12c_remTime = zeus::max(x12c_remTime, x134_durationResetWhileVisible);
    return;
  }

  if (!frustum.aabbFrustumTest(x9c_renderBounds)) {
    return;
  }
  x12c_remTime = zeus::max(x12c_remTime, x134_durationResetWhileVisible);

  if (x110_31_anyVisorVisible) {
    bool visible = false;
    const CPlayerState::EPlayerVisor visor = mgr.GetPlayerState()->GetActiveVisor(mgr);
    if (visor == CPlayerState::EPlayerVisor::Combat || visor == CPlayerState::EPlayerVisor::Scan) {
      visible = x110_28_combatVisorVisible;
    } else if (visor == CPlayerState::EPlayerVisor::XRay) {
      visible = x110_30_xrayVisorVisible;
    } else if (visor == CPlayerState::EPlayerVisor::Thermal) {
      visible = x110_29_thermalVisorVisible;
    }

    if (visible && x138_actorLights) {
      const CGameArea* area = mgr.GetWorld()->GetAreaAlways(GetAreaIdAlways());
      x138_actorLights->BuildAreaLightList(mgr, *area,
                                           zeus::CAABox{x9c_renderBounds.center(), x9c_renderBounds.center()});
      x138_actorLights->BuildDynamicLightList(mgr, x9c_renderBounds);
    }
    EnsureRendered(mgr);
  }
}

void CScriptEffect::Render(CStateManager& mgr) {
  /* The following code is kept for reference, this is now performed in CElementGen
  if (x138_actorLights)
  x138_actorLights->ActivateLights();
  */
  if (x104_particleSystem && x104_particleSystem->GetParticleCountAll() > 0) {
    g_NumParticlesRendered += x104_particleSystem->GetParticleCountAll();
    x104_particleSystem->Render(x138_actorLights.get());
  }

  if (xf4_electric && xf4_electric->GetParticleCount() > 0) {
    g_NumParticlesRendered += xf4_electric->GetParticleCount();
    xf4_electric->Render(x138_actorLights.get());
  }
}

void CScriptEffect::Think(float dt, CStateManager& mgr) {
  if (xe4_28_transformDirty) {
    if (x104_particleSystem) {
      zeus::CTransform newXf = x34_transform;
      newXf.origin = zeus::skZero3f;
      x104_particleSystem->SetOrientation(newXf);
      x104_particleSystem->SetGlobalTranslation(x34_transform.origin);
    }
    if (xf4_electric) {
      zeus::CTransform newXf = x34_transform;
      newXf.origin = zeus::skZero3f;
      xf4_electric->SetOrientation(newXf);
      xf4_electric->SetGlobalTranslation(x34_transform.origin);
    }

    if (const TCastToPtr<CActor> act = mgr.ObjectById(x108_lightId)) {
      act->SetTransform(GetTransform());
    }

    xe4_28_transformDirty = false;
  }

  if (x110_25_noTimerUnlessAreaOccluded) {
    const CGameArea* area = mgr.GetWorld()->GetAreaAlways(GetAreaIdAlways());
    const auto visible = area->IsPostConstructed() ? area->GetOcclusionState() : CGameArea::EOcclusionState::Occluded;

    if (visible == CGameArea::EOcclusionState::Occluded && x12c_remTime <= 0.f) {
      return;
    }
  } else if (x12c_remTime <= 0.f) {
    return;
  }

  x12c_remTime -= dt;

  if (x110_24_enable) {
    if (x104_particleSystem) {
      x104_particleSystem->Update(dt);
      g_NumParticlesUpdating += x104_particleSystem->GetParticleCountAll();
    }

    if (xf4_electric) {
      xf4_electric->Update(dt);
      g_NumParticlesUpdating += xf4_electric->GetParticleCount();
    }

    if (x108_lightId != kInvalidUniqueId) {
      if (const TCastToPtr<CGameLight> light = mgr.ObjectById(x108_lightId)) {
        if (x30_24_active) {
          light->SetLight(x104_particleSystem->GetLight());
        }
      }
    }

    if (x111_25_dieWhenSystemsDone) {
      x140_destroyDelayTimer += dt;
      if (x140_destroyDelayTimer > 15.f || AreBothSystemsDeleteable()) {
        mgr.FreeScriptObject(GetUniqueId());
        return;
      }
    }
  }

  if (x104_particleSystem) {
    if (xb4_drawFlags.x0_blendMode != 0) {
      x104_particleSystem->SetModulationColor(xb4_drawFlags.x4_color);
    } else {
      x104_particleSystem->SetModulationColor(zeus::skWhite);
    }
  }
}

void CScriptEffect::CalculateRenderBounds() {
  std::optional<zeus::CAABox> particleBounds;
  if (x104_particleSystem) {
    particleBounds = x104_particleSystem->GetBounds();
  }

  std::optional<zeus::CAABox> electricBounds;
  if (xf4_electric) {
    electricBounds = xf4_electric->GetBounds();
  }

  if (particleBounds || electricBounds) {
    zeus::CAABox renderBounds = zeus::CAABox();
    if (particleBounds) {
      renderBounds.accumulateBounds(particleBounds->min);
      renderBounds.accumulateBounds(particleBounds->max);
    }
    if (electricBounds) {
      renderBounds.accumulateBounds(electricBounds->min);
      renderBounds.accumulateBounds(electricBounds->max);
    }
    x9c_renderBounds = renderBounds;
    x111_26_canRender = true;
  } else {
    x9c_renderBounds = {GetTranslation(), GetTranslation()};
    x111_26_canRender = false;
  }
}

zeus::CAABox CScriptEffect::GetSortingBounds(const CStateManager& mgr) const {
  if (x13c_triggerId == kInvalidUniqueId) {
    return x9c_renderBounds;
  }

  return static_cast<const CScriptTrigger*>(mgr.GetObjectById(x13c_triggerId))->GetTriggerBoundsWR();
}

bool CScriptEffect::AreBothSystemsDeleteable() const {
  if (x104_particleSystem && !x104_particleSystem->IsSystemDeletable()) {
    return false;
  }

  if (xf4_electric && !xf4_electric->IsSystemDeletable()) {
    return false;
  }

  return true;
}
} // namespace metaforce