Fixed output of texture.filename when path is empty

Author: houmain

src/common.cpp

@@ -405,7 +405,7 @@ std::string make_identifier(std::string string) {
 
   // remove duplicate underscores and also from front and back
   auto after_underscore = true;
-  for (auto i = 0; i < string.size(); ) {
+  for (auto i = 0u; i < string.size(); ) {
     if (string[i] == '_') {
       if (after_underscore) {
         string.erase(i, 1);

src/output_description.cpp

@@ -165,7 +165,8 @@ namespace {
       json_texture["spriteIndices"] = slice_sprites[slice.index];
       json_texture["path"] = path_to_utf8(settings.output_path);
       json_texture["filename"] = path_to_utf8(
-        std::filesystem::relative(texture.filename, settings.output_path));
+        settings.output_path.empty() ? texture.filename :
+          std::filesystem::relative(texture.filename, settings.output_path));
       json_texture["scale"] = output.scale;
       json_texture["width"] = to_int(slice.width * output.scale);
       json_texture["height"] = to_int(slice.height * output.scale);

src/pack_binpack.cpp

@@ -38,15 +38,13 @@ void pack_binpack(const SheetPtr& sheet_ptr, SpriteSpan sprites,
 
   // update sprite rects
   auto slice_index = 0;
-  auto packed_sprites = size_t{ };
   for (const auto& pack_sheet : pack_sheets) {
     for (const auto& pack_rect : pack_sheet.rects) {
       auto& sprite = sprites[to_unsigned(pack_rect.id)];
       sprite.rotated = pack_rect.rotated;
       sprite.slice_index = slice_index;
       sprite.trimmed_rect.x = pack_rect.x;
       sprite.trimmed_rect.y = pack_rect.y;
-      ++packed_sprites;
     }
     ++slice_index;
   }