Display ordered NPC path on map, move TALK_GOTO_LOCATION to top-level menu

data/json/npcs/common_chat/TALK_COMMON_ALLY.json

@@ -51,6 +51,7 @@
         "topic": "TALK_FRIEND",
         "effect": "reveal_stats"
       },
+      { "text": "Please go to this location.", "topic": "TALK_GOTO_LOCATION", "effect": "goto_location" },
       { "text": "There's something I want you to do.", "topic": "TALK_ALLY_ORDERS" },
       { "text": "I just wanted to talk for a bit.", "topic": "TALK_ALLY_SOCIAL" },
       { "text": "Can you help me understand something?  (HELP/TUTORIAL)", "topic": "TALK_ALLY_TUTORIAL" },
@@ -1017,7 +1018,10 @@
   {
     "id": "TALK_GOTO_LOCATION",
     "type": "talk_topic",
-    "dynamic_line": "Sure thing, I'll make my way there.",
+    "dynamic_line": {
+      "npc_is_travelling": "Sure thing, I'll make my way there.",
+      "no": "All right, tell me if you want me to go somewhere."
+    },
     "responses": [ { "text": "Affirmative.", "topic": "TALK_DONE" } ]
   },
   {
@@ -1037,12 +1041,6 @@
         "topic": "TALK_FRIEND_GUARD",
         "effect": "assign_camp"
       },
-      {
-        "text": "Please go to this location.",
-        "topic": "TALK_GOTO_LOCATION",
-        "condition": { "or": [ "is_by_radio", "u_has_camp" ] },
-        "effect": "goto_location"
-      },
       {
         "text": "I want you to build a camp here.",
         "topic": "TALK_HALLU_CAMP",

doc/NPCs.md

@@ -961,6 +961,8 @@ Condition | Type | Description
 `"has_available_mission" or "u_has_available_mission" or "npc_has_available_mission"` | simple string | `true` if u or the NPC has one job available for the player character.
 `"has_many_available_missions"` | simple string | `true` if the NPC has several jobs available for the player character.
 `"mission_goal" or "npc_mission_goal" or "u_mission_goal"` | string or [variable object](#variable-object) | `true` if u or the NPC's current mission has the same goal as `mission_goal`.
+`"u_has_activity" or "npc_has_activity" | simple string | `true` if the [selected talker](EFFECT_ON_CONDITION.md#alpha-and-beta-talkers) is currently performing an [activity](PLAYER_ACTIVITY.md).
+`"u_is_travelling" or "npc_is_travelling" | simple string | `true` if the [selected talker](EFFECT_ON_CONDITION.md#alpha-and-beta-talkers) has a current destination. Note that this just checks the destination exists, not whether u or npc is actively moving to it.
 `"mission_complete" or "npc_mission_complete" or "u_mission_complete"` | simple string | `true` if u or the NPC has completed the other's current mission.
 `"mission_incomplete" or "npc_mission_incomplete" or "u_mission_incomplete"` | simple string | `true` if u or the NPC hasn't completed the other's current mission.
 `"mission_failed" or "npc_mission_failed" or "u_mission_failed"` | simple string | `true` if u or the NPC has failed the other's current mission.

lang/string_extractor/parsers/talk_topic.py

@@ -22,6 +22,7 @@ def gender_options(subject):
     "npc_available", "npc_following", "npc_friend", "npc_hostile",
     "npc_train_skills", "npc_train_styles", "npc_train_spells",
     "at_safe_space", "is_day", "npc_has_activity",
+    "u_is_travelling", "npc_is_travelling",
     "is_outside", "u_is_outside", "npc_is_outside", "u_has_camp",
     "u_can_stow_weapon", "npc_can_stow_weapon", "u_can_drop_weapon",
     "npc_can_drop_weapon", "u_has_weapon", "npc_has_weapon",

src/condition.cpp

@@ -1099,6 +1099,17 @@ conditional_t::func f_npc_role_nearby( const JsonObject &jo, std::string_view me
     };
 }
 
+conditional_t::func f_npc_is_travelling( bool is_npc )
+{
+    return [is_npc]( dialogue const & d ) {
+        const Character *traveller = d.actor( is_npc )->get_character();
+        if( !traveller ) {
+            return false;
+        }
+        return !traveller->omt_path.empty();
+    };
+}
+
 conditional_t::func f_npc_allies( const JsonObject &jo, std::string_view member )
 {
     dbl_or_var dov = get_dbl_or_var( jo, member );
@@ -2487,6 +2498,7 @@ std::vector<condition_parser>
 parsers_simple = {
     {"u_male", "npc_male", &conditional_fun::f_is_male },
     {"u_female", "npc_female", &conditional_fun::f_is_female },
+    {"u_is_travelling", "npc_is_travelling", &conditional_fun::f_npc_is_travelling },
     {"has_no_assigned_mission", &conditional_fun::f_no_assigned_mission },
     {"has_assigned_mission", &conditional_fun::f_has_assigned_mission },
     {"has_many_assigned_missions", &conditional_fun::f_has_many_assigned_missions },

src/do_turn.cpp

@@ -654,7 +654,7 @@ bool do_turn()
     // consider a stripped down cache just for monsters.
     m.build_map_cache( levz, true );
     monmove();
-    if( calendar::once_every( 5_minutes ) ) {
+    if( calendar::once_every( time_between_npc_OM_moves ) ) {
         overmap_npc_move();
     }
     if( calendar::once_every( 10_seconds ) ) {

src/game.h

@@ -1154,6 +1154,9 @@
         // show NPC pathfinding on overmap ui
         bool debug_pathfinding = false; // NOLINT(cata-serialize)
 
+        //Ugly kludge to pass info to tile overmaps
+        npc *follower_path_to_show = nullptr;
+
         /* tile overlays */
         // Toggle all other overlays off and flip the given overlay on/off.
         void display_toggle_overlay( action_id );

src/game_constants.h

@@ -4,6 +4,7 @@
 
 #include <map>
 #include <string>
+#include "calendar.h"
 #include "units.h"
 
 // Fixed window sizes.
@@ -145,6 +146,9 @@ constexpr int BIO_CQB_LEVEL = 5;
 // Minimum size of a horde to show up on the minimap.
 constexpr int HORDE_VISIBILITY_SIZE = 3;
 
+// How often a NPC can move one tile on the overmap
+constexpr time_duration time_between_npc_OM_moves = 5_minutes;
+
 /**
  * Average annual temperature in Kelvin used for climate, weather and temperature calculation.
  * Average New England temperature = 43F/6C rounded to int.

src/npctalk_funcs.cpp

@@ -49,6 +49,7 @@
 #include "npctrade.h"
 #include "output.h"
 #include "overmap.h"
+#include "overmap_ui.h"
 #include "overmapbuffer.h"
 #include "pimpl.h"
 #include "player_activity.h"
@@ -372,7 +373,7 @@ void talk_function::goto_location( npc &p )
         camps.push_back( temp_camp );
     }
     for( const basecamp *iter : camps ) {
-        //~ %1$s: camp name, %2$d and %3$d: coordinates
+        //~ %1$s: camp name, %2$s: coordinates of the camp
         selection_menu.addentry( i++, true, MENU_AUTOASSIGN, pgettext( "camp", "%1$s at %2$s" ),
                                  iter->camp_name(), iter->camp_omt_pos().to_string() );
     }
@@ -406,6 +407,19 @@ void talk_function::goto_location( npc &p )
         add_msg( m_info, _( "That is not a valid destination for %s." ), p.disp_name() );
         return;
     }
+    g->follower_path_to_show = &p; // Necessary for overmap display in tiles version...
+    ui::omap::display_npc_path( p.global_omt_location(), p.omt_path );
+    g->follower_path_to_show = nullptr;
+    int tiles_to_travel = p.omt_path.size();
+    time_duration ETA = time_between_npc_OM_moves * tiles_to_travel;
+    ETA = ETA * rng_float( 0.8, 1.2 ); // Add +-20% variance in our estimate
+    if( !query_yn(
+            _( "Estimated time to arrival: %1$s  \nTiles to travel: %2$s  \nIs this path and destination acceptable?" ),
+            to_string_approx( ETA ), tiles_to_travel ) ) {
+        p.goal = npc::no_goal_point;
+        p.omt_path.clear();
+        return;
+    }
     p.set_mission( NPC_MISSION_TRAVELLING );
     p.chatbin.first_topic = p.chatbin.talk_friend_guard;
     p.guard_pos = std::nullopt;

src/overmap_ui.cpp

@@ -538,7 +538,8 @@
 static void draw_ascii(
     const catacurses::window &w, const tripoint_abs_omt &center,
     const tripoint_abs_omt &orig, bool blink, bool show_explored, bool /* fast_scroll */,
-    input_context * /* inp_ctxt */, const draw_data_t &data )
+    input_context * /* inp_ctxt */, const draw_data_t &data,
+    std::vector<tripoint_abs_omt> display_path )
 {
 
     const int om_map_width = OVERMAP_WINDOW_WIDTH;
@@ -689,6 +690,11 @@
             npc *npc_to_add = npc_to_get.get();
             followers.push_back( npc_to_add );
         }
+        if( !display_path.empty() ) {
+            for( auto &elem : display_path ) {
+                npc_path_route.insert( elem );
+            }
+        }
         // get all traveling NPCs for the debug menu to show pathfinding routes.
         if( g->debug_pathfinding ) {
             for( auto &elem : overmap_buffer.get_npcs_near_player( 200 ) ) {
@@ -1257,7 +1263,7 @@
 static void draw(
     ui_adaptor &ui, const tripoint_abs_omt &center, const tripoint_abs_omt &orig,
     bool blink, bool show_explored, bool fast_scroll,
-    input_context *inp_ctxt, const draw_data_t &data )
+    input_context *inp_ctxt, const draw_data_t &data, std::vector<tripoint_abs_omt> display_path )
 {
     draw_om_sidebar( ui, g->w_omlegend, center, orig, blink, fast_scroll, inp_ctxt, data );
 #if defined( TILES )
@@ -1269,7 +1275,8 @@
         return;
     }
 #endif // TILES
-    draw_ascii( g->w_overmap, center, orig, blink, show_explored, fast_scroll, inp_ctxt, data );
+    draw_ascii( g->w_overmap, center, orig, blink, show_explored, fast_scroll, inp_ctxt, data,
+                display_path );
 }
 
 static void create_note( const tripoint_abs_omt &curs )
@@ -1773,7 +1780,7 @@
 }
 
 static tripoint_abs_omt display( const tripoint_abs_omt &orig,
-                                 const draw_data_t &data = draw_data_t() )
+                                 const draw_data_t &data = draw_data_t(), std::vector<tripoint_abs_omt> display_path = {} )
 {
     const int previous_zoom = g->get_zoom();
     g->set_zoom( overmap_zoom_level );
@@ -1861,10 +1868,13 @@
     int fast_scroll_offset = get_option<int>( "FAST_SCROLL_OFFSET" );
     std::optional<tripoint> mouse_pos;
     std::chrono::time_point<std::chrono::steady_clock> last_blink = std::chrono::steady_clock::now();
+    std::chrono::time_point<std::chrono::steady_clock> last_advance = std::chrono::steady_clock::now();
+    auto display_path_iter = display_path.rbegin();
+    std::chrono::milliseconds cursor_advance_time = std::chrono::milliseconds( 0 );
 
     ui.on_redraw( [&]( ui_adaptor & ui ) {
         draw( ui, curs, orig, uistate.overmap_show_overlays,
-              show_explored, fast_scroll, &ictxt, data );
+              show_explored, fast_scroll, &ictxt, data, display_path );
     } );
 
     do {
@@ -1880,6 +1890,22 @@
 #else
         action = ictxt.handle_input( get_option<int>( "BLINK_SPEED" ) );
 #endif
+        if( !display_path.empty() ) {
+            std::chrono::time_point<std::chrono::steady_clock> now = std::chrono::steady_clock::now();
+            // We go faster per-tile the more we have to go
+            cursor_advance_time = std::chrono::milliseconds( 1000 ) / display_path.size();
+            cursor_advance_time = std::max( cursor_advance_time, std::chrono::milliseconds( 1 ) );
+            if( now > last_advance + cursor_advance_time ) {
+                if( display_path_iter != display_path.rend() ) {
+                    curs = *display_path_iter;
+                    last_advance = now;
+                    display_path_iter++;
+                } else if( now > last_advance + cursor_advance_time * 10 ) {
+                    action = "QUIT";
+                    break;
+                }
+            }
+        }
         if( const std::optional<tripoint> vec = ictxt.get_direction( action ) ) {
             int scroll_d = fast_scroll ? fast_scroll_offset : 1;
             curs += vec->xy() * scroll_d;
@@ -2053,6 +2079,12 @@
     overmap_ui::display( get_player_character().global_omt_location(), overmap_ui::draw_data_t() );
 }
 
+void ui::omap::display_npc_path( tripoint_abs_omt starting_pos,
+                                 std::vector<tripoint_abs_omt> display_path )
+{
+    overmap_ui::display( starting_pos, overmap_ui::draw_data_t(), display_path );
+}
+
 void ui::omap::display_hordes()
 {
     overmap_ui::draw_data_t data;

src/overmap_ui.h

@@ -31,6 +31,10 @@ namespace omap
  * Display overmap centered at the player's position.
  */
 void display();
+/**
+ * Display overmap centered at the given NPC's position and visually move across their intended OMT path.
+ */
+void display_npc_path( tripoint_abs_omt starting_pos, std::vector<tripoint_abs_omt> display_path );
 /**
  * Display overmap like with @ref display() and display hordes.
  */

src/sdltiles.cpp

@@ -979,6 +979,15 @@ void cata_tiles::draw_om( const point &dest, const tripoint_abs_omt &center_abs_
             }
         }
 
+        if( g->follower_path_to_show ) {
+            for( const tripoint_abs_omt &pos : g->follower_path_to_show->omt_path ) {
+                if( pos.z() == center_abs_omt.z() ) {
+                    draw_from_id_string( "highlight", global_omt_to_draw_position( pos ), 0, 0, lit_level::LIT,
+                                         false );
+                }
+            }
+        }
+
         // only draw in full tiles so it doesn't get cut off
         const std::optional<std::pair<tripoint_abs_omt, std::string>> mission_arrow =
                     get_mission_arrow( full_om_tile_area, center_abs_omt );