improve language load fail behaviour

improve currencies
fix bug in supported glyph check

data/language/english_uk.txt

@@ -3899,7 +3899,7 @@ STR_5557    :Stay connected after desynchronisation (Multiplayer)
 STR_5558    :A restart is required for this setting to take effect
 STR_5559    :10 min. inspections
 STR_5560    :{SMALLFONT}{BLACK}Sets the inspection time to 'Every 10 minutes' on all rides
-STR_5561    :Failed to load language file
+STR_5561    :Failed to load language
 STR_5562    :WARNING!
 STR_5563    :This feature is currently unstable, take extra caution.
 STR_5564    :Insert Corrupt Element

src/drawing/font.c

@@ -134,7 +134,10 @@ bool font_supports_string(const utf8 *text, int fontSize)
 	uint32 codepoint;
 	while ((codepoint = utf8_get_next(src, &src)) != 0) {
 		if (gUseTrueTypeFont) {
-			return TTF_GlyphIsProvided(gCurrentTTFFontSet->size[fontSize].font, (uint16)codepoint);
+			bool supported = TTF_GlyphIsProvided(gCurrentTTFFontSet->size[fontSize].font, (uint16)codepoint);
+			if (!supported) {
+				return false;
+			}
 		} else {
 			bool supported = false;
 			switch (codepoint) {

src/drawing/string.c

@@ -881,8 +881,9 @@ static uint32 _ttf_getwidth_cache_get_or_add(TTF_Font *font, const utf8 *text)
 bool ttf_initialise()
 {
 	if (!_ttfInitialised) {
-		if (TTF_Init() != 0)
+		if (TTF_Init() != 0) {
 			return false;
+		}
 
 		for (int i = 0; i < 4; i++) {
 			TTFFontDescriptor *fontDesc = &(gCurrentTTFFontSet->size[i]);
@@ -893,6 +894,7 @@ bool ttf_initialise()
 			fontDesc->font = TTF_OpenFont(fontPath, fontDesc->ptSize);
 			if (fontDesc->font == NULL) {
 				log_error("Unable to load '%s'", fontPath);
+				return false;
 			}
 		}
 

src/localisation/currency.c

@@ -29,10 +29,10 @@ const currency_descriptor CurrencyDescriptors[CURRENCY_END] = {
 	{ 1000	, CURRENCY_PREFIX, "\xC2\xA5"		,	CURRENCY_SUFFIX,	"YEN"	, STR_YEN			},		// Japanese Yen
 	{ 10	, CURRENCY_SUFFIX, "Pts"			,	CURRENCY_SUFFIX,	"Pts"	, STR_PESETA		},		// Spanish Peseta
 	{ 1000	, CURRENCY_PREFIX, "L"				,	CURRENCY_PREFIX,	"L"		, STR_LIRA			},		// Italian Lira
-	{ 10	, CURRENCY_PREFIX, "fl. "			,	CURRENCY_PREFIX,	"fl."	, STR_GUILDERS		},		// Dutch Guilder
+	{ 10	, CURRENCY_PREFIX, "\xC6\x92"		,	CURRENCY_PREFIX,	"fl."	, STR_GUILDERS		},		// Dutch Guilder
 	{ 10	, CURRENCY_SUFFIX, "kr."			,	CURRENCY_SUFFIX,	"kr."	, STR_KRONA			},		// Swedish Krona
 	{ 10	, CURRENCY_PREFIX, "\xE2\x82\xAC"	,	CURRENCY_SUFFIX,	"EUR"	, STR_EUROS			},		// Euro
 	{ 10000 , CURRENCY_PREFIX, "\xE2\x82\xA9"	,	CURRENCY_PREFIX,	"W"		, STR_WON			},		// South Korean Won
 	{ 1000  , CURRENCY_PREFIX, "R "				,	CURRENCY_PREFIX,	"R "	, STR_ROUBLE		},		// Russian Rouble
-	{ 100	, CURRENCY_SUFFIX, "K\xC4\x8D"		,	CURRENCY_SUFFIX,	"Kc"	, STR_CZECH_KORUNA	},		// Czech koruna
+	{ 100	, CURRENCY_SUFFIX, " K\xC4\x8D"		,	CURRENCY_SUFFIX,	" Kc"	, STR_CZECH_KORUNA	},		// Czech koruna
 };

src/localisation/language.cpp

@@ -173,6 +173,11 @@ int language_open(int id)
 			gCurrentTTFFontSet = LanguagesDescriptors[id].font;
 			if (!ttf_initialise()) {
 				log_warning("Unable to initialise TrueType fonts.");
+
+				// Fall back to sprite font
+				gUseTrueTypeFont = false;
+				gCurrentTTFFontSet = nullptr;
+				return 0;
 			}
 		}
 

src/openrct2.c

@@ -251,10 +251,13 @@ bool openrct2_initialise()
 		audio_init();
 		audio_populate_devices();
 	}
-	if (!language_open(gConfigGeneral.language))
-	{
-		log_fatal("Failed to open language, exiting.");
-		return false;
+	if (!language_open(gConfigGeneral.language)) {
+		log_error("Failed to open configured language...");
+
+		if (!language_open(LANGUAGE_ENGLISH_UK)) {
+			log_fatal("Failed to open fallback language...");
+			return false;
+		}
 	}
 	http_init();