Improve check for starting fire near fireplace

Author: sparr

src/avatar.cpp

@@ -263,6 +263,12 @@ const memorized_tile &avatar::get_memorized_tile( const tripoint_abs_ms &p ) con
     return mm_submap::default_tile;
 }
 
+bool avatar::has_memory_at( const tripoint_abs_ms &p ) const
+{
+    const memorized_tile &mt = get_memorized_tile( p );
+    return !mt.get_ter_id().empty() || !mt.get_dec_id().empty();
+}
+
 void avatar::memorize_terrain( const tripoint_abs_ms &p, std::string_view id,
                                int subtile, int rotation )
 {

src/avatar.h

@@ -146,6 +146,7 @@ class avatar : public Character
         bool should_show_map_memory() const;
         void prepare_map_memory_region( const tripoint_abs_ms &p1, const tripoint_abs_ms &p2 );
         const memorized_tile &get_memorized_tile( const tripoint_abs_ms &p ) const;
+        bool has_memory_at( const tripoint_abs_ms &p ) const;
         void memorize_terrain( const tripoint_abs_ms &p, std::string_view id,
                                int subtile, int rotation );
         void memorize_decoration( const tripoint_abs_ms &p, std::string_view id,

src/cata_tiles.cpp

@@ -1534,7 +1534,7 @@ void cata_tiles::draw( const point &dest, const tripoint_bub_ms &center, int wid
                     invisible[0] = false;
 
                     if( y < min_visible.y || y > max_visible.y || x < min_visible.x || x > max_visible.x ) {
-                        if( has_memory_at( pos_global ) ) {
+                        if( you.has_memory_at( pos_global ) ) {
                             ll = lit_level::MEMORIZED;
                             invisible[0] = true;
                         } else if( has_draw_override( pos ) ) {
@@ -1705,7 +1705,7 @@ void cata_tiles::draw( const point &dest, const tripoint_bub_ms &center, int wid
                         const visibility_type vis_type = here.get_visibility( ll, cache );
                         if( would_apply_vision_effects( vis_type ) ) {
                             const Creature *critter = creatures.creature_at( pos, true );
-                            if( has_draw_override( pos ) || has_memory_at( pos_global ) ||
+                            if( has_draw_override( pos ) || you.has_memory_at( pos_global ) ||
                                 ( critter &&
                                   ( critter->has_flag( mon_flag_ALWAYS_VISIBLE )
                                     || you.sees_with_specials( *critter ) ) ) ) {
@@ -3178,12 +3178,6 @@ bool cata_tiles::apply_vision_effects( const tripoint_bub_ms &pos,
     return true;
 }
 
-bool cata_tiles::has_memory_at( const tripoint_abs_ms &p ) const
-{
-    const memorized_tile &mt = get_avatar().get_memorized_tile( p );
-    return !mt.get_ter_id().empty() || !mt.get_dec_id().empty();
-}
-
 const memorized_tile &cata_tiles::get_terrain_memory_at( const tripoint_abs_ms &p ) const
 {
     const memorized_tile &mt = get_avatar().get_memorized_tile( p );

src/cata_tiles.h

@@ -577,7 +577,6 @@ class cata_tiles
         static int get_rotation_edge_ew( char rot_to );
 
         /** Map memory */
-        bool has_memory_at( const tripoint_abs_ms &p ) const;
         const memorized_tile &get_terrain_memory_at( const tripoint_abs_ms &p ) const;
         const memorized_tile &get_furniture_memory_at( const tripoint_abs_ms &p ) const;
         const memorized_tile &get_trap_memory_at( const tripoint_abs_ms &p ) const;

src/iuse_actor.cpp

@@ -1520,22 +1520,26 @@ firestarter_actor::start_type firestarter_actor::prep_firestarter_use( Character
             return start_type::NONE;
         }
     }
-    // Check for an adjacent fire container
-    for( const tripoint_bub_ms &query : here->points_in_radius( pos, 1 ) ) {
-        // Don't ask if we're setting a fire on top of a fireplace
-        if( here->has_flag_furn( "FIRE_CONTAINER", pos ) ) {
-            break;
-        }
-        // Skip the position we're trying to light on fire
-        if( query == pos ) {
-            continue;
-        }
-        if( here->has_flag_furn( "FIRE_CONTAINER", query ) ) {
-            if( !query_yn( _( "Are you sure you want to start fire here?  There's a fireplace adjacent." ) ) ) {
-                return start_type::NONE;
-            } else {
-                // Don't ask multiple times if they say no and there are multiple fireplaces
-                break;
+    // Don't check if we're setting a fire on top of a fireplace
+    if( !here->has_flag_furn( "FIRE_CONTAINER", pos ) ) {
+        // Check for an adjacent fire container
+        for( const tripoint_bub_ms &query : here->points_in_radius( pos, 1 ) ) {
+            // Skip the position we're trying to light on fire
+            if( query == pos ) {
+                continue;
+            }
+            // Skip positions we've never seen
+            if( p.is_avatar() && !p.as_avatar()->has_memory_at( here->get_abs( query ) ) ) {
+                continue;
+            }
+            if( here->has_flag_ter_or_furn( "FIRE_CONTAINER", query ) ) {
+                if( !query_yn(
+                        _( "Are you sure you want to start fire here?  There's a much more appropriate spot adjacent." ) ) ) {
+                    return start_type::NONE;
+                } else {
+                    // Don't ask multiple times if they say no and there are multiple fireplaces
+                    break;
+                }
             }
         }
     }