Abandon camp NPC talk and bulletin board mission

data/json/npcs/TALK_FACTION_CAMP.json

@@ -20,6 +20,12 @@
         "switch": true,
         "default": true
       },
+      {
+        "text": "We need to abandon this camp...",
+        "condition": { "npc_at_om_location": "FACTION_CAMP_ANY" },
+        "topic": "TALK_DONE",
+        "effect": "abandon_camp"
+      },
       {
         "text": "Show me what needs to be done at the camp.",
         "topic": "TALK_DONE",

src/basecamp.h

@@ -144,6 +144,7 @@ class basecamp
         //change name of camp
         void set_name( const std::string &new_name );
         void query_new_name();
+        void abandon_camp();
         void add_expansion( const std::string &terrain, const tripoint &new_pos );
         void add_expansion( const std::string &bldg, const tripoint &new_pos,
                             const point &dir );

src/faction_camp.cpp

@@ -1266,6 +1266,9 @@ void basecamp::get_available_missions( mission_data &mission_key )
                                   "\n\nRisk: None\n"
                                   "Time: Ongoing" ) );
         mission_key.add( "Assign Jobs", _( "Assign Jobs" ), entry );
+        entry = _( "Notes:\nAbandon this camp" );
+                                  "Abandon this camp" ) );
+        mission_key.add( "Abandon Camp", _( "Abandon Camp" ), entry );
     }
     // Missions assigned to the central tile that could be done by an expansion
     get_available_missions_by_dir( mission_key, base_camps::base_dir );
@@ -1319,6 +1322,9 @@ bool basecamp::handle_mission( const std::string &miss_id, cata::optional<point>
     if( miss_id == "Assign Jobs" ) {
         job_assignment_ui();
     }
+    if( miss_id == "Abandon Camp" ) {
+        abandon_camp();
+    }
 
     if( miss_id == "Expand Base" ) {
         start_mission( "_faction_camp_expansion", 3_hours, true,
@@ -1561,6 +1567,27 @@ void basecamp::start_upgrade( const std::string &bldg, const point &dir,
     }
 }
 
+void basecamp::abandon_camp()
+{
+    validate_assignees();
+    npc_ptr random_guy;
+    for( npc_ptr &guy : overmap_buffer.get_companion_mission_npcs( 10 ) ) {
+        npc_companion_mission c_mission = guy->get_companion_mission();
+        if( c_mission.role_id != base_camps::id ) {
+            continue;
+        }
+        random_guy = guy;
+        const std::string return_msg = _( "responds to the emergency recall…" );
+        finish_return( *guy, false, return_msg, "menial", 0, true );
+    }
+    for( npc_ptr &guy : get_npcs_assigned() ) {
+        talk_function::stop_guard( *guy );
+    }
+    overmap_buffer.remove_camp( *this );
+    g->m.remove_submap_camp( random_guy->pos() );
+    add_msg( m_info, _( "You abandon %s." ), name );
+}
+
 void basecamp::job_assignment_ui()
 {
     int term_x = TERMY > FULL_SCREEN_HEIGHT ? ( TERMY - FULL_SCREEN_HEIGHT ) / 2 : 0;

src/npctalk.cpp

@@ -2571,6 +2571,7 @@ void talk_effect_t::parse_string_effect( const std::string &effect_id, const Jso
             WRAP( do_farming ),
             WRAP( assign_guard ),
             WRAP( assign_camp ),
+            WRAP( abandon_camp ),
             WRAP( stop_guard ),
             WRAP( start_camp ),
             WRAP( buy_cow ),

src/npctalk.h

@@ -51,6 +51,7 @@ void goto_location( npc & );
 void assign_base( npc & );
 void assign_guard( npc & );
 void assign_camp( npc & );
+void abandon_camp( npc & );
 void stop_guard( npc & );
 void end_conversation( npc & );
 void insult_combat( npc & );

src/npctalk_funcs.cpp

@@ -346,6 +346,15 @@ void talk_function::assign_guard( npc &p )
     p.set_omt_destination();
 }
 
+void talk_function::abandon_camp( npc &p )
+{
+    cata::optional<basecamp *> bcp = overmap_buffer.find_camp( p.global_omt_location().xy() );
+    if( bcp ) {
+        basecamp *temp_camp = *bcp;
+        temp_camp->abandon_camp();
+    }
+}
+
 void talk_function::assign_camp( npc &p )
 {
     cata::optional<basecamp *> bcp = overmap_buffer.find_camp( p.global_omt_location().xy() );

src/overmapbuffer.cpp

@@ -1089,11 +1089,11 @@ std::vector<overmap *> overmapbuffer::get_overmaps_near( const point &p, const i
     return get_overmaps_near( tripoint( p, 0 ), radius );
 }
 
-std::vector<shared_ptr_fast<npc>> overmapbuffer::get_companion_mission_npcs()
+std::vector<shared_ptr_fast<npc>> overmapbuffer::get_companion_mission_npcs( int range )
 {
     std::vector<shared_ptr_fast<npc>> available;
     // TODO: this is an arbitrary radius, replace with something sane.
-    for( const auto &guy : get_npcs_near_player( 100 ) ) {
+    for( const auto &guy : get_npcs_near_player( range ) ) {
         if( guy->has_companion_mission() ) {
             available.push_back( guy );
         }

src/overmapbuffer.h

@@ -233,7 +233,7 @@ class overmapbuffer
          * Get all (currently loaded!) npcs that have a companion
          * mission set.
          */
-        std::vector<shared_ptr_fast<npc>> get_companion_mission_npcs();
+        std::vector<shared_ptr_fast<npc>> get_companion_mission_npcs( int range = 100 );
         /**
          * Uses overmap terrain coordinates, this also means radius is
          * in overmap terrain.