From a496b9d72b9191dd9c10bad41a30968cbea6a461 Mon Sep 17 00:00:00 2001
From: Gleb Mazovetskiy <glex.spb@gmail.com>
Date: Thu, 16 Dec 2021 23:42:01 +0000
Subject: [PATCH] Emscripten: Fix assets/ loading

---
 CMake/platforms/emscripten.cmake | 1 +
 CMakeLists.txt                   | 4 ++++
 Source/utils/paths.cpp           | 4 ++++
 3 files changed, 9 insertions(+)

diff --git a/CMake/platforms/emscripten.cmake b/CMake/platforms/emscripten.cmake
index a98453003..c5737c081 100644
--- a/CMake/platforms/emscripten.cmake
+++ b/CMake/platforms/emscripten.cmake
@@ -1,4 +1,5 @@
 set(BUILD_TESTING OFF)
+set(BUILD_ASSETS_MPQ OFF)
 set(DISABLE_ZERO_TIER ON)
 set(DEVILUTIONX_SYSTEM_SDL_AUDIOLIB OFF)
 set(DEVILUTIONX_SYSTEM_LIBSODIUM OFF)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ad5d7a1e..0caa875cf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -448,6 +448,10 @@ else()
 endif()
 target_link_libraries(${BIN_TARGET} PRIVATE libdevilutionx)
 
+if(EMSCRIPTEN)
+  target_link_options(${BIN_TARGET} PRIVATE --preload-file assets)
+endif()
+
 if(BUILD_TESTING)
   if(ENABLE_CODECOVERAGE)
     if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
diff --git a/Source/utils/paths.cpp b/Source/utils/paths.cpp
index c635531ac..8a5fc8eb7 100644
--- a/Source/utils/paths.cpp
+++ b/Source/utils/paths.cpp
@@ -91,7 +91,11 @@ const std::string &ConfigPath()
 const std::string &AssetsPath()
 {
 	if (!assetsPath)
+#if __EMSCRIPTEN__
+		assetsPath.emplace("assets/");
+#else
 		assetsPath.emplace(FromSDL(SDL_GetBasePath()) + "assets/");
+#endif
 	return *assetsPath;
 }