metaforce/Runtime/Weapon/CGameProjectile.hpp

#pragma once

#include <optional>
#include <vector>

#include "Runtime/CToken.hpp"
#include "Runtime/RetroTypes.hpp"
#include "Runtime/Collision/CMaterialList.hpp"
#include "Runtime/Collision/CRayCastResult.hpp"
#include "Runtime/Weapon/CProjectileWeapon.hpp"
#include "Runtime/Weapon/CWeapon.hpp"
#include "Runtime/Weapon/CWeaponMode.hpp"
#include "Runtime/World/CDamageInfo.hpp"

#include <zeus/CAABox.hpp>
#include <zeus/CVector3f.hpp>

namespace urde {
class CGenDescription;
class CWeaponDescription;

class CProjectileTouchResult {
  TUniqueId x0_id;
  std::optional<CRayCastResult> x4_result;

public:
  CProjectileTouchResult(TUniqueId id, const std::optional<CRayCastResult>& result)
  : x0_id(id), x4_result(result) {}
  TUniqueId GetActorId() const { return x0_id; }
  bool HasRayCastResult() const { return x4_result.operator bool(); }
  const CRayCastResult& GetRayCastResult() const { return *x4_result; }
};

class CGameProjectile : public CWeapon {
protected:
  std::optional<TLockedToken<CGenDescription>> x158_visorParticle;
  u16 x168_visorSfx;
  CProjectileWeapon x170_projectile;
  zeus::CVector3f x298_previousPos;
  float x2a4_projExtent;
  float x2a8_homingDt = 0.03f;
  double x2b0_targetHomingTime = 0.0;
  double x2b8_curHomingTime = x2a8_homingDt;
  TUniqueId x2c0_homingTargetId;
  TUniqueId x2c2_lastResolvedObj = kInvalidUniqueId;
  TUniqueId x2c4_ = kInvalidUniqueId;
  TUniqueId x2c6_pendingDamagee = kInvalidUniqueId;
  TUniqueId x2c8_projectileLight = kInvalidUniqueId;
  CAssetId x2cc_wpscId;
  std::vector<CProjectileTouchResult> x2d0_touchResults;
  float x2e0_minHomingDist = 0.f;
  union {
    struct {
      bool x2e4_24_active : 1;
      bool x2e4_25_startedUnderwater : 1;
      bool x2e4_26_waterUpdate : 1;
      bool x2e4_27_inWater : 1;
      bool x2e4_28_sendProjectileCollideMsg : 1;
    };
  };

public:
  CGameProjectile(bool active, const TToken<CWeaponDescription>&, std::string_view name, EWeaponType wType,
                  const zeus::CTransform& xf, EMaterialTypes excludeMat, const CDamageInfo& dInfo, TUniqueId uid,
                  TAreaId aid, TUniqueId owner, TUniqueId homingTarget, EProjectileAttrib attribs, bool underwater,
                  const zeus::CVector3f& scale,
                  const std::optional<TLockedToken<CGenDescription>>& visorParticle, u16 visorSfx,
                  bool sendCollideMsg);

  void Accept(IVisitor& visitor) override;
  virtual void ResolveCollisionWithActor(const CRayCastResult& res, CActor& act, CStateManager& mgr);
  void AcceptScriptMsg(EScriptObjectMessage, TUniqueId, CStateManager&) override;
  static EProjectileAttrib GetBeamAttribType(EWeaponType wType);
  void DeleteProjectileLight(CStateManager&);
  void CreateProjectileLight(std::string_view, const CLight&, CStateManager&);
  void Chase(float dt, CStateManager& mgr);
  void UpdateHoming(float dt, CStateManager& mgr);
  void UpdateProjectileMovement(float dt, CStateManager& mgr);
  CRayCastResult DoCollisionCheck(TUniqueId& idOut, CStateManager& mgr);
  void ApplyDamageToActors(CStateManager& mgr, const CDamageInfo& dInfo);
  void FluidFXThink(EFluidState state, CScriptWater& water, CStateManager& mgr) override;
  CRayCastResult RayCollisionCheckWithWorld(TUniqueId& idOut, const zeus::CVector3f& start, const zeus::CVector3f& end,
                                            float mag, const rstl::reserved_vector<TUniqueId, 1024>& nearList,
                                            CStateManager& mgr);
  CProjectileTouchResult CanCollideWith(CActor& act, CStateManager& mgr) const;
  CProjectileTouchResult CanCollideWithComplexCollision(CActor& act, CStateManager& mgr) const;
  CProjectileTouchResult CanCollideWithGameObject(CActor& act, CStateManager& mgr) const;
  CProjectileTouchResult CanCollideWithTrigger(CActor& act, CStateManager& mgr) const;
  zeus::CAABox GetProjectileBounds() const;
  std::optional<zeus::CAABox> GetTouchBounds() const override;
  CProjectileWeapon& ProjectileWeapon() { return x170_projectile; }
  const CProjectileWeapon& GetProjectileWeapon() const { return x170_projectile; }
  TUniqueId GetHomingTargetId() const { return x2c0_homingTargetId; }
  zeus::CVector3f GetPreviousPos() const { return x298_previousPos; }
  void SetMinHomingDistance(float dist) { x2e0_minHomingDist = dist; }
};
} // namespace urde