Added variables to build SDL2_ttf with HarfBuzz and added functions to

the engine to support defining the text direction and script name

extern/SDL2/CMakeLists.txt

@@ -6,6 +6,8 @@ set(SDL2_DISABLE_UNINSTALL OFF CACHE BOOL "" FORCE)
 set(SDL2IMAGE_VENDORED ON CACHE BOOL "" FORCE)
 set(SDL2MIXER_VENDORED ON CACHE BOOL "" FORCE)
 set(SDL2TTF_VENDORED ON CACHE BOOL "" FORCE)
+set(SDL2TTF_HARFBUZZ ON CACHE BOOL "" FORCE)
+set(TTF_USE_HARFBUZZ ON CACHE BOOL "" FORCE)
 set(SDL2IMAGE_TIF ON CACHE BOOL "" FORCE)
 
 add_subdirectory(SDL)

include/GameEngine.h

@@ -14,6 +14,13 @@
 extern "C" {
 #endif // !__cplusplus
 
+typedef enum {
+  FONT_DIRECTION_LTR = TTF_DIRECTION_LTR,
+  FONT_DIRECTION_RTL = TTF_DIRECTION_RTL,
+  FONT_DIRECTION_TTB = TTF_DIRECTION_TTB,
+  FONT_DIRECTION_BTT = TTF_DIRECTION_BTT,
+} FontDirection;
+
 // GENERAL ENGINE API
 
 /**
@@ -80,6 +87,8 @@ TextSize get_text_size_from_font_asset(AssetID id, const char *text);
 void render_text_with_font_asset(AssetID id, const char *text, f32 x, f32 y,
                                  SDL_Color color);
 void set_font_asset_size(AssetID id, u32 size);
+i32 set_font_direction(AssetID id, FontDirection direction);
+i32 set_font_script_name(AssetID id, const char *script);
 // END RENDERING API
 
 // AUDIO API

src/GameEngine.c

@@ -413,6 +413,32 @@ void set_font_asset_size(AssetID id, u32 size) {
   TTF_SetFontSize(font, size);
 }
 
+i32 set_font_direction(AssetID id, FontDirection direction) {
+  if (id < 0) {
+    return -2;
+  }
+
+  TTF_Font *font = get_font(GameEngine.asset_manager, id);
+  if (!font) {
+    return -2;
+  }
+
+  return TTF_SetFontDirection(font, (TTF_Direction)direction);
+}
+
+i32 set_font_script_name(AssetID id, const char *script) {
+  if (id < 0) {
+    return -2;
+  }
+
+  TTF_Font *font = get_font(GameEngine.asset_manager, id);
+  if (!font) {
+    return -2;
+  }
+
+  return TTF_SetFontScriptName(font, script);
+}
+
 i8 play_audio_asset(AssetID id, i16 loops, bool fade_in,
                     u32 fade_length_in_ms) {
   if (id < 0) {