From 0ab1dd9ba8baa8c66d4f7351ea9c64f198479889 Mon Sep 17 00:00:00 2001
From: Fris0uman <41293484+Fris0uman@users.noreply.github.com>
Date: Mon, 6 Sep 2021 11:43:37 +0200
Subject: [PATCH] Overwrite tiles with same id (#51080)

* Overwrite tiles with same id

* report duplicated id

* Don't delete comment

Co-authored-by: olanti-p <olanti-p@yandex.ru>
Co-authored-by: Zhilkin Serg <ZhilkinSerg@users.noreply.github.com>
---
 src/cata_tiles.cpp | 27 ++++++++++++++++++++++++++-
 src/cata_tiles.h   |  9 +++++++++
 2 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/src/cata_tiles.cpp b/src/cata_tiles.cpp
index 5e14eff3c789a..ea7825fde8bf6 100644
--- a/src/cata_tiles.cpp
+++ b/src/cata_tiles.cpp
@@ -256,7 +256,11 @@ tileset::find_tile_type_by_season( const std::string &id, season_type season ) c
 
 tile_type &tileset::create_tile_type( const std::string &id, tile_type &&new_tile_type )
 {
-    auto inserted = tile_ids.insert( std::make_pair( id, new_tile_type ) ).first;
+    // Must overwrite existing tile
+    // TODO: c++17 - replace [] + find() with insert_or_assign()
+    tile_ids[id] = std::move( new_tile_type );
+    auto inserted = tile_ids.find( id );
+
     const std::string &inserted_id = inserted->first;
     tile_type &inserted_tile = inserted->second;
 
@@ -976,6 +980,9 @@ void tileset_loader::load_tilejson_from_file( const JsonObject &config )
  */
 tile_type &tileset_loader::load_tile( const JsonObject &entry, const std::string &id )
 {
+    if( ts.find_tile_type( id ) ) {
+        ts.duplicate_ids.insert( id );
+    }
     tile_type curr_subtile;
 
     load_tile_spritelists( entry, curr_subtile.fg, "fg" );
@@ -3734,6 +3741,23 @@ void cata_tiles::draw_footsteps_frame( const tripoint &center )
 }
 /* END OF ANIMATION FUNCTIONS */
 
+void cata_tiles::tile_loading_report_dups()
+{
+
+    std::vector<std::string> dups_list;
+    const std::unordered_set<std::string> &dups_set = tileset_ptr->get_duplicate_ids();
+    std::copy( dups_set.begin(), dups_set.end(), std::back_inserter( dups_list ) );
+    // NOLINTNEXTLINE(cata-use-localized-sorting)
+    std::sort( dups_list.begin(), dups_list.end() );
+
+    std::string res;
+    for( const std::string &s : dups_list ) {
+        res += s;
+        res += " ";
+    }
+    DebugLog( D_INFO, DC_ALL ) << "Have duplicates: " << res;
+}
+
 void cata_tiles::init_light()
 {
     g->reset_light_level();
@@ -3983,6 +4007,7 @@ void cata_tiles::do_tile_loading_report()
     tile_loading_report( vpart_info::all(), C_VEHICLE_PART, "vp_" );
     tile_loading_report<trap>( trap::count(), C_TRAP, "" );
     tile_loading_report<field_type>( field_type::count(), C_FIELD, "" );
+    tile_loading_report_dups();
 
     // needed until DebugLog ostream::flush bugfix lands
     DebugLog( D_INFO, DC_ALL );
diff --git a/src/cata_tiles.h b/src/cata_tiles.h
index c736c3c76a5fa..45309a5499ee0 100644
--- a/src/cata_tiles.h
+++ b/src/cata_tiles.h
@@ -126,6 +126,8 @@ class tileset
         std::vector<texture> overexposed_tile_values;
         std::vector<texture> memory_tile_values;
 
+        std::unordered_set<std::string> duplicate_ids;
+
         std::unordered_map<std::string, tile_type> tile_ids;
         // caches both "default" and "_season_XXX" tile variants (to reduce the number of lookups)
         // either variant can be either a `nullptr` or a pointer/reference to the real value (stored inside `tile_ids`)
@@ -168,6 +170,10 @@ class tileset
             return get_if_available( index, memory_tile_values );
         }
 
+        const std::unordered_set<std::string> &get_duplicate_ids() const {
+            return duplicate_ids;
+        }
+
         tile_type &create_tile_type( const std::string &id, tile_type &&new_tile_type );
         const tile_type *find_tile_type( const std::string &id ) const;
         /**
@@ -563,6 +569,9 @@ class cata_tiles
         template<typename Iter, typename Func>
         void lr_generic( Iter begin, Iter end, Func id_func, TILE_CATEGORY category,
                          const std::string &prefix );
+
+        void tile_loading_report_dups();
+
         /** Lighting */
         void init_light();