8.驾驶员下车后，车上人员需要可以切换驾驶位

server/gameserver/car.cc

@@ -72,6 +72,16 @@ void Car::FillMFObjectFull(Room* room, Human* hum, cs::MFObjectFull* full_data)
     FillBuffList(hum, p->mutable_buff_list());
 }
 
+Human* Car::GetPassengerBySeat(int seat)
+{
+    for (auto hum : passengers_) {
+        if (hum->GetSeat() == seat) {
+            return hum;
+        }
+    }
+    return nullptr;
+}
+
 void Car::GetDown(Human* passenger)
 {
     if (later_removed_) {
@@ -169,6 +179,31 @@ void Car::GetOn(Human* passenger)
     SyncAroundPlayers(__FILE__, __LINE__, __func__);
 }
 
+void Car::SwitchSeat(Human* passenger, int seat)
+{
+    if (seat != 0) {
+        return;
+    }
+    if (driver_) {
+        return;
+    }
+    if (!IsPassenger(passenger)) {
+        return;
+    }
+    if (passenger->GetSeat() == seat) {
+        return;
+    }
+    if (GetPassengerBySeat(seat)) {
+        return;
+    }
+    if (!IsDriver(passenger)) {
+        passenger->SetSeat(seat);
+        driver_ = passenger;
+        room->frame_event.AddCarChg(passenger);
+        SyncAroundPlayers(__FILE__, __LINE__, __func__);
+    }
+}
+
 bool Car::CanShot(Human* passenger)
 {
     if (!IsPassenger(passenger)) {

server/gameserver/car.h

@@ -28,8 +28,10 @@ class Car : public Creature
     virtual void GetAabbBox(AabbCollider& aabb_box) override;
 
     bool IsDriver(Human* hum) { return driver_ == hum && driver_; }
+    Human* GetPassengerBySeat(int seat);
     void GetDown(Human* passenger);
     void GetOn(Human* passenger);
+    void SwitchSeat(Human* passenger, int seat);
     bool CanShot(Human* passenger);
     void SyncPos();
     virtual float GetRadius() override;

server/gameserver/player.cc

@@ -114,6 +114,9 @@ void Player::InternalUpdate(int delta_time)
         if (get_on) {
             UpdateGetOn();
         }
+        if (switch_seat) {
+            UpdateSwitchSeat();
+        }
         if (shot_start || shot_hold) {
             UpdateShot();
         }
@@ -421,6 +424,14 @@ void Player::UpdateGetOn()
     get_on = 0;
 }
 
+void Player::UpdateSwitchSeat()
+{
+    if (GetCar()) {
+        GetCar()->SwitchSeat(this, switch_seat - 1);
+    }
+    switch_seat = 0;
+}
+
 void Player::UpdateUseSkill()
 {
     if (HasBuffEffect(kBET_Vertigo)) {
@@ -1114,6 +1125,9 @@ void Player::_CMMove(f8::MsgHdr& hdr, const cs::CMMove& msg)
     if (msg.has_get_on()) {
         get_on = msg.get_on();
     }
+    if (msg.has_switch_seat()) {
+        switch_seat = msg.has_switch_seat();
+    }
     if (msg.has_jump()) {
         jump = true;
     }

server/gameserver/player.h

@@ -65,6 +65,7 @@ class Player : public Human
 
     bool get_down = false;
     int get_on = 0;
+    int switch_seat = 0;
 
     ::google::protobuf::RepeatedField< ::google::protobuf::int32 > interaction_objids;
 
@@ -85,6 +86,7 @@ class Player : public Human
     void UpdateJump();
     void UpdateGetDown();
     void UpdateGetOn();
+    void UpdateSwitchSeat();
     void UpdateUseSkill();
     void UpdateAiming();
     void Shot();