[nostalgia/core] Fix TileSheet validation/repair to ensure pixels gets cleared if there are subsheets

src/nostalgia/modules/core/include/nostalgia/core/tilesheet.hpp

@@ -237,7 +237,9 @@ struct TileSheetV4 {
 [[nodiscard]]
 constexpr bool valid(TileSheetV4::SubSheet const&ss, int bpp) noexcept {
 	auto const bytes = static_cast<size_t>(ss.columns * ss.rows * PixelsPerTile) / (bpp == 4 ? 2 : 1);
-	return ox::all_of(ss.subsheets.begin(), ss.subsheets.end(),
+	return
+		(ss.pixels.empty() || ss.subsheets.empty()) &&
+		ox::all_of(ss.subsheets.begin(), ss.subsheets.end(),
 				[bpp, bytes](TileSheetV4::SubSheet const&s) {
 			return bytes == s.pixels.size() && valid(s, bpp);
 		});
@@ -249,8 +251,14 @@ constexpr bool valid(TileSheetV4 const&ts) noexcept {
 }
 
 constexpr void repair(TileSheetV4::SubSheet &ss, int bpp) noexcept {
+	if (ss.subsheets.empty()) {
 		auto const bytes = static_cast<size_t>(ss.columns * ss.rows * PixelsPerTile) / (bpp == 4 ? 2 : 1);
 		ss.pixels.resize(bytes);
+	} else {
+		ss.pixels.clear();
+		ss.columns = -1;
+		ss.rows = -1;
+	}
 	for (auto &s : ss.subsheets) {
 		repair(s, bpp);
 	}

src/nostalgia/modules/core/src/studio/tilesheeteditor/tilesheeteditor-imgui.cpp

@@ -544,7 +544,7 @@ void TileSheetEditorImGui::SubSheetEditor::draw(turbine::Context &tctx) noexcept
 	auto const popupHeight = modSize ? 130.f : 85.f;
 	auto const popupSz = ImVec2{popupWidth, popupHeight};
 	if (ig::BeginPopup(tctx, popupName, m_show, popupSz)) {
-		ImGui::InputText("Name", m_name.data(), m_name.cap());
+		ig::InputText("Name", m_name);
 		if (modSize) {
 			ImGui::InputInt("Columns", &m_cols);
 			ImGui::InputInt("Rows", &m_rows);

src/olympic/studio/applib/src/newproject.cpp

@@ -50,7 +50,7 @@ void NewProject::draw(studio::StudioContext &ctx) noexcept {
 
 void NewProject::drawNewProjectName(studio::StudioContext &sctx) noexcept {
 	drawWindow(sctx.tctx, &m_open, [this, &sctx] {
-		ImGui::InputText("Name", m_projectName.data(), m_projectName.cap());
+		ig::InputText("Name", m_projectName);
 		ImGui::Text("Path: %s", m_projectPath.c_str());
 		if (ImGui::Button("Browse")) {
 			oxLogError(studio::chooseDirectory().moveTo(m_projectPath));