metaforce/Runtime/World/CScriptTrigger.cpp

#include "CScriptTrigger.hpp"
#include "CActorParameters.hpp"
#include "CStateManager.hpp"
#include "TCastTo.hpp"
#include "World/CPlayer.hpp"
#include "Weapon/CGameProjectile.hpp"
#include "Camera/CGameCamera.hpp"

namespace urde {

CScriptTrigger::CScriptTrigger(TUniqueId uid, std::string_view name, const CEntityInfo& info,
                               const zeus::CVector3f& pos, const zeus::CAABox& bounds, const CDamageInfo& dInfo,
                               const zeus::CVector3f& forceField, ETriggerFlags triggerFlags, bool active,
                               bool deactivateOnEntered, bool deactivateOnExited)
: CActor(uid, active, name, info, zeus::CTransform::Translate(pos), CModelData::CModelDataNull(),
         CMaterialList(EMaterialTypes::Trigger), CActorParameters::None(), kInvalidUniqueId)
, x100_damageInfo(dInfo)
, x11c_forceField(forceField)
, x128_forceMagnitude(forceField.magnitude())
, x12c_flags(triggerFlags)
, x130_bounds(bounds) {
  x148_24_detectCamera = false;
  x148_25_camSubmerged = false;
  x148_26_deactivateOnEntered = deactivateOnEntered;
  x148_27_deactivateOnExited = deactivateOnExited;
  x148_28_playerTriggerProc = false;
  x148_29_didPhazonDamage = false;
  SetCallTouch(false);
}

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

void CScriptTrigger::Think(float dt, CStateManager& mgr) {
  if (GetActive())
    UpdateInhabitants(dt, mgr);
}

void CScriptTrigger::AcceptScriptMsg(EScriptObjectMessage msg, TUniqueId uid, CStateManager& mgr) {
  if (GetActive() && (msg == EScriptObjectMessage::Deactivate || msg == EScriptObjectMessage::Deleted)) {
    if (msg == EScriptObjectMessage::Deactivate) {
      xe8_inhabitants.clear();
      x148_25_camSubmerged = false;
    }

    if (x148_28_playerTriggerProc) {
      x148_28_playerTriggerProc = false;
      if (x148_29_didPhazonDamage) {
        mgr.Player()->DecrementPhazon();
        x148_29_didPhazonDamage = false;
      }

      if (x8_uid == mgr.GetLastTriggerId())
        mgr.SetLastTriggerId(kInvalidUniqueId);
    }
  }

  CEntity::AcceptScriptMsg(msg, uid, mgr);
}

CScriptTrigger::CObjectTracker* CScriptTrigger::FindObject(TUniqueId id) {
  auto& inhabitants = GetInhabitants();
  const auto& iter = std::find(inhabitants.begin(), inhabitants.end(), id);

  if (iter != inhabitants.end())
    return &(*iter);
  return nullptr;
}

void CScriptTrigger::UpdateInhabitants(float dt, CStateManager& mgr) {
  bool sendInside = false;
  bool sendExited = false;
  std::list<CObjectTracker>::iterator nextIt;
  for (auto it = xe8_inhabitants.begin(); it != xe8_inhabitants.end(); it = nextIt) {
    nextIt = it;
    ++nextIt;
    if (TCastToPtr<CActor> act = mgr.ObjectById(it->GetObjectId())) {
      bool playerValid = true;
      if (it->GetObjectId() == mgr.GetPlayer().GetUniqueId()) {
        if ((x12c_flags & ETriggerFlags::DetectPlayer) == ETriggerFlags::None &&
            ((mgr.GetPlayer().GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Morphed &&
              (x12c_flags & ETriggerFlags::DetectUnmorphedPlayer) != ETriggerFlags::None) ||
             (mgr.GetPlayer().GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Unmorphed &&
              (x12c_flags & ETriggerFlags::DetectMorphedPlayer) != ETriggerFlags::None))) {
          playerValid = false;
        }
        if (!playerValid) {
          xe8_inhabitants.erase(it);
          sendExited = true;
          if (x148_28_playerTriggerProc) {
            x148_28_playerTriggerProc = false;
            if (x148_29_didPhazonDamage) {
              mgr.GetPlayer().DecrementPhazon();
              x148_29_didPhazonDamage = false;
            }

            if (mgr.GetLastTriggerId() == GetUniqueId())
              mgr.SetLastTriggerId(kInvalidUniqueId);
          }

          InhabitantExited(*act, mgr);
          continue;
        }
      }

      auto touchBounds = GetTouchBounds();
      auto actTouchBounds = act->GetTouchBounds();
      if (touchBounds && actTouchBounds && touchBounds->intersects(*actTouchBounds)) {
        sendInside = true;
        InhabitantIdle(*act, mgr);
        if (act->HealthInfo(mgr) && x100_damageInfo.GetDamage() > 0.f)
          mgr.ApplyDamage(GetUniqueId(), act->GetUniqueId(), GetUniqueId(), {x100_damageInfo, dt},
                          CMaterialFilter::MakeIncludeExclude({EMaterialTypes::Solid}, {}), zeus::CVector3f::skZero);

        if (x128_forceMagnitude > 0.f) {
          if (TCastToPtr<CPhysicsActor> pact = act.GetPtr()) {
            float forceMult = 1.f;
            if ((x12c_flags & ETriggerFlags::UseBooleanIntersection) != ETriggerFlags::None)
              forceMult = touchBounds->booleanIntersection(*actTouchBounds).volume() / actTouchBounds->volume();

            zeus::CVector3f force = forceMult * x11c_forceField;
            if ((x12c_flags & ETriggerFlags::UseCollisionImpulses) != ETriggerFlags::None) {
              pact->ApplyImpulseWR(force, zeus::CAxisAngle::sIdentity);
              pact->UseCollisionImpulses();
            } else
              pact->ApplyForceWR(force, zeus::CAxisAngle::sIdentity);
          }
        }
      } else {
        TUniqueId tmpId = it->GetObjectId();
        xe8_inhabitants.erase(it);
        sendExited = true;
        if (mgr.GetPlayer().GetUniqueId() == tmpId && x148_28_playerTriggerProc) {
          x148_28_playerTriggerProc = false;
          if (x148_29_didPhazonDamage) {
            mgr.Player()->DecrementPhazon();
            x148_29_didPhazonDamage = false;
          }

          if (mgr.GetLastTriggerId() == GetUniqueId())
            mgr.SetLastTriggerId(kInvalidUniqueId);
        }

        InhabitantExited(*act, mgr);
      }
    } else {
      TUniqueId tmpId = it->GetObjectId();
      xe8_inhabitants.erase(it);
      if (mgr.GetPlayer().GetUniqueId() == tmpId && x148_28_playerTriggerProc) {
        x148_28_playerTriggerProc = false;
        if (x148_29_didPhazonDamage) {
          mgr.Player()->DecrementPhazon();
          x148_29_didPhazonDamage = false;
        }

        if (mgr.GetLastTriggerId() == GetUniqueId())
          mgr.SetLastTriggerId(kInvalidUniqueId);
      }
    }
  }

  if ((x12c_flags & ETriggerFlags::DetectCamera) != ETriggerFlags::None || x148_24_detectCamera) {
    CGameCamera* cam = mgr.GetCameraManager()->GetCurrentCamera(mgr);
    bool camInTrigger = GetTriggerBoundsWR().pointInside(cam->GetTranslation());
    if (x148_25_camSubmerged) {
      if (!camInTrigger) {
        x148_25_camSubmerged = false;
        if ((x12c_flags & ETriggerFlags::DetectCamera) != ETriggerFlags::None) {
          sendExited = true;
          InhabitantExited(*cam, mgr);
        }
      } else {
        if ((x12c_flags & ETriggerFlags::DetectCamera) != ETriggerFlags::None) {
          InhabitantIdle(*cam, mgr);
          sendInside = true;
        }
      }
    } else {
      if (camInTrigger) {
        x148_25_camSubmerged = true;
        if ((x12c_flags & ETriggerFlags::DetectCamera) != ETriggerFlags::None) {
          InhabitantAdded(*cam, mgr);
          SendScriptMsgs(EScriptObjectState::Entered, mgr, EScriptObjectMessage::Activate);
        }
      }
    }
  }

  if (sendInside) {
    SendScriptMsgs(EScriptObjectState::Inside, mgr, EScriptObjectMessage::Activate);
  }

  if (sendExited) {
    SendScriptMsgs(EScriptObjectState::Exited, mgr, EScriptObjectMessage::Activate);
    if (x148_27_deactivateOnExited) {
      mgr.SendScriptMsg(GetUniqueId(), mgr.GetEditorIdForUniqueId(GetUniqueId()), EScriptObjectMessage::Deactivate,
                        EScriptObjectState::Exited);
    }
  }
}

std::list<CScriptTrigger::CObjectTracker>& CScriptTrigger::GetInhabitants() { return xe8_inhabitants; }

std::experimental::optional<zeus::CAABox> CScriptTrigger::GetTouchBounds() const {
  if (x30_24_active)
    return {GetTriggerBoundsWR()};
  return {};
}
static const CWeaponMode sktonOHurtWeaponMode = CWeaponMode(EWeaponType::Power, false, false, true);

void CScriptTrigger::Touch(CActor& act, CStateManager& mgr) {
  if (!act.GetActive() || act.GetMaterialList().HasMaterial(EMaterialTypes::Trigger))
    return;

  if (FindObject(act.GetUniqueId()) == nullptr) {
    ETriggerFlags testFlags = ETriggerFlags::None;
    TCastToPtr<CPlayer> pl(act);
    if (pl) {
      if (x128_forceMagnitude > 0.f && (x12c_flags & ETriggerFlags::DetectPlayer) != ETriggerFlags::None &&
          mgr.GetLastTriggerId() == kInvalidUniqueId)
        mgr.SetLastTriggerId(x8_uid);

      testFlags |= ETriggerFlags::DetectPlayer;
      if (pl->GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Unmorphed)
        testFlags |= ETriggerFlags::DetectUnmorphedPlayer;
      else if (pl->GetMorphballTransitionState() == CPlayer::EPlayerMorphBallState::Morphed)
        testFlags |= ETriggerFlags::DetectMorphedPlayer;
    } else if (TCastToPtr<CAi>(act)) {
      testFlags |= ETriggerFlags::DetectAI;
    } else if (TCastToPtr<CGameProjectile>(act)) {
      testFlags |= ETriggerFlags::DetectProjectiles1 | ETriggerFlags::DetectProjectiles2 |
                   ETriggerFlags::DetectProjectiles3 | ETriggerFlags::DetectProjectiles4 |
                   ETriggerFlags::DetectProjectiles5 | ETriggerFlags::DetectProjectiles6 |
                   ETriggerFlags::DetectProjectiles7;
    } else if (CWeapon* weap = TCastToPtr<CWeapon>(act)) {
      if ((weap->GetAttribField() & EProjectileAttrib::Bombs) == EProjectileAttrib::Bombs)
        testFlags |= ETriggerFlags::DetectBombs;
      else if ((weap->GetAttribField() & EProjectileAttrib::PowerBombs) == EProjectileAttrib::PowerBombs)
        testFlags |= ETriggerFlags::DetectPowerBombs;
    }

    if ((testFlags & x12c_flags) != ETriggerFlags::None) {
      xe8_inhabitants.push_back(act.GetUniqueId());
      InhabitantAdded(act, mgr);

      if (pl) {
        if (!x148_28_playerTriggerProc) {
          x148_28_playerTriggerProc = true;
          if (x148_29_didPhazonDamage) {
            mgr.Player()->DecrementPhazon();
            x148_29_didPhazonDamage = false;
          } else if (x100_damageInfo.GetDamage() > 0.f) {
            const CDamageVulnerability* dVuln = mgr.Player()->GetDamageVulnerability();
            if (dVuln->WeaponHurts(x100_damageInfo.GetWeaponMode(), 0) &&
                x100_damageInfo.GetWeaponMode().GetType() == EWeaponType::Phazon &&
                !mgr.GetPlayerState()->HasPowerUp(CPlayerState::EItemType::PhazonSuit)) {
              pl->IncrementPhazon();
              x148_29_didPhazonDamage = true;
            }
          }
        }
      }

      SendScriptMsgs(EScriptObjectState::Entered, mgr, EScriptObjectMessage::None);

      if (x148_26_deactivateOnEntered) {
        mgr.SendScriptMsg(x8_uid, mgr.GetEditorIdForUniqueId(x8_uid), EScriptObjectMessage::Deactivate,
                          EScriptObjectState::Entered);
        if (act.HealthInfo(mgr) && x100_damageInfo.GetDamage() > 0.f) {
          mgr.ApplyDamage(x8_uid, act.GetUniqueId(), x8_uid, x100_damageInfo,
                          CMaterialFilter::MakeIncludeExclude({EMaterialTypes::Solid}, {0ull}),
                          zeus::CVector3f::skZero);
        }
      }

      if ((x12c_flags & ETriggerFlags::KillOnEnter) != ETriggerFlags::None && act.HealthInfo(mgr)) {
        CHealthInfo* hInfo = act.HealthInfo(mgr);
        mgr.ApplyDamage(x8_uid, act.GetUniqueId(), x8_uid, {sktonOHurtWeaponMode, 10.f * hInfo->GetHP(), 0.f, 0.f},
                        CMaterialFilter::MakeIncludeExclude({EMaterialTypes::Solid}, {0ull}), zeus::CVector3f::skZero);
      }
    } else
      InhabitantRejected(act, mgr);
  }
}

zeus::CAABox CScriptTrigger::GetTriggerBoundsWR() const {
  return {x130_bounds.min + x34_transform.origin, x130_bounds.max + x34_transform.origin};
}
} // namespace urde