add ability to change language

data/language/dutch.txt

@@ -2774,9 +2774,9 @@ STR_2772    :Hogere spelsnelheid
 STR_2773    :???
 STR_2774    :???
 STR_2775    :???
-STR_2776    :???
+STR_2776    :Language
-STR_2777    :???
+STR_2777    :{MOVE_X}{SMALLFONT}{STRING}
-STR_2778    :???
+STR_2778    :{RIGHTGUILLEMET}{MOVE_X}{SMALLFONT}{STRING}
 STR_2779    :???
 STR_2780    :???
 STR_2781    :{STRINGID}:{MOVE_X}{195}{STRINGID}{STRINGID}

data/language/english_us.txt

@@ -2774,9 +2774,9 @@ STR_2772    :Faster Gamespeed
 STR_2773    :???
 STR_2774    :???
 STR_2775    :???
-STR_2776    :???
+STR_2776    :Language
-STR_2777    :???
+STR_2777    :{MOVE_X}{SMALLFONT}{STRING}
-STR_2778    :???
+STR_2778    :{RIGHTGUILLEMET}{MOVE_X}{SMALLFONT}{STRING}
 STR_2779    :???
 STR_2780    :???
 STR_2781    :{STRINGID}:{MOVE_X}{195}{STRINGID}{STRINGID}

projects/openrct2.vcxproj

@@ -29,6 +29,7 @@
     <ClInclude Include="..\src\gfx.h" />
     <ClInclude Include="..\src\graph.h" />
     <ClInclude Include="..\src\intro.h" />
+    <ClInclude Include="..\src\language.h" />
     <ClInclude Include="..\src\map.h" />
     <ClInclude Include="..\src\marketing.h" />
     <ClInclude Include="..\src\news_item.h" />
@@ -73,6 +74,7 @@
     <ClCompile Include="..\src\gfx.c" />
     <ClCompile Include="..\src\graph.c" />
     <ClCompile Include="..\src\intro.c" />
+    <ClCompile Include="..\src\language.c" />
     <ClCompile Include="..\src\map.c" />
     <ClCompile Include="..\src\marketing.c" />
     <ClCompile Include="..\src\news_item.c" />

projects/openrct2.vcxproj.filters

@@ -153,6 +153,9 @@
     <ClInclude Include="..\src\graph.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\src\language.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\src\game.c">
@@ -359,6 +362,9 @@
     <ClCompile Include="..\src\window_new_campaign.c">
       <Filter>Windows</Filter>
     </ClCompile>
+    <ClCompile Include="..\src\language.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\openrct2.exe">

src/config.c

@@ -23,6 +23,7 @@
 #include <ctype.h>
 #include "addresses.h"
 #include "config.h"
+#include "language.h"
 #include "rct2.h"
 
 
@@ -90,6 +91,7 @@ general_configuration_t gGeneral_config_default = {
 	0,		// show_height_as_units
 	1,		// save_plugin_data
 	0,		// fullscreen mode (default: windowed)
+	LANGUAGE_ENGLISH_UK
 };
 sound_configuration_t gSound_config;
 
@@ -381,6 +383,8 @@ void config_write_ini_general(FILE *fp)
 		fprintf(fp, "fullscreen_mode = fullscreen\n");
 	else
 		fprintf(fp, "fullscreen_mode = borderless_fullscreen\n");
+
+	fprintf(fp, "language = %d\n", gGeneral_config.language);
 }
 
 /**
@@ -621,6 +625,9 @@ static void config_general(char *setting, char *value){
 		else
 			gGeneral_config.fullscreen_mode = 2;
 	}
+	else if (strcmp(setting, "language") == 0) {
+		gGeneral_config.language = atoi(value);
+	}
 }
 
 /**

src/config.h

@@ -130,6 +130,7 @@ typedef struct general_configuration {
 
 	//new
 	uint8 fullscreen_mode;
+	uint16 language;
 } general_configuration_t;
 
 static const struct { char *key; int value; } _currencyLookupTable[] = {

src/language.c

@@ -0,0 +1,165 @@
+/*****************************************************************************
+ * Copyright (c) 2014 Ted John
+ * OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+ *
+ * This file is part of OpenRCT2.
+ *
+ * OpenRCT2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *****************************************************************************/
+
+#include <stdio.h>
+#include "addresses.h"
+#include "language.h"
+#include "string_ids.h"
+
+const char *language_names[LANGUAGE_COUNT] = {
+	"",					// LANGUAGE_UNDEFINED
+	"English (UK)",		// LANGUAGE_ENGLISH_UK
+	"English (US)",		// LANGUAGE_ENGLISH_US
+	"Nederlands"		// LANGUAGE_DUTCH
+};
+
+const char *language_filenames[LANGUAGE_COUNT] = {
+	"",					// LANGUAGE_UNDEFINED
+	"english_uk",		// LANGUAGE_ENGLISH_UK
+	"english_us",		// LANGUAGE_ENGLISH_US
+	"dutch"				// LANGUAGE_DUTCH
+};
+
+int gCurrentLanguage = LANGUAGE_UNDEFINED;
+
+// Buffer storing all the string data
+long language_buffer_size = 0;
+char *language_buffer = NULL;
+
+// List of string pointers into the string data
+int language_num_strings = 0;
+char **language_strings = NULL;
+
+static int language_open_file(const char *filename);
+
+const char *language_get_string(rct_string_id id)
+{
+	const char *rct = RCT2_ADDRESS(0x009BF2D4, const char*)[id];
+	const char *openrct = language_strings == NULL ? NULL : language_strings[id];
+	const char *str = (openrct == NULL || strlen(openrct) == 0 ? rct : openrct);
+	return str == NULL ? "" : str;
+}
+
+int language_open(int id)
+{
+	char filename[_MAX_PATH];
+
+	language_close();
+	if (id == LANGUAGE_UNDEFINED)
+		return 1;
+
+	sprintf(filename, "data/language/%s.txt", language_filenames[id]);
+	if (language_open_file(filename)) {
+		gCurrentLanguage = id;
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * Partial support to open a uncompiled language file which parses tokens and converts them to the corresponding character
+ * code. Due to resource strings (strings in scenarios and objects) being written to the original game's string table,
+ * get_string will use those if the same entry in the loaded language is empty.
+ * 
+ * Unsure at how the original game decides which entries to write resource strings to, but this could affect adding new
+ * strings for the time being. Further investigation is required.
+ *
+ * Also note that all strings are currently still ASCII. It probably can't be converted to UTF-8 until all game functions that
+ * read / write strings in some way is decompiled. The original game used a DIY extended 8-bit extended ASCII set for special
+ * characters, format codes and accents.
+ *
+ * In terms of reading the language files, the STR_XXXX part is completely ignored at the moment. It just parses each line from
+ * the colon and thus not allowing gaps in the string indices.
+ */
+static int language_open_file(const char *filename)
+{
+	FILE *f = fopen(filename, "rb");
+	if (f == NULL)
+		return 0;
+
+	fseek(f, 0, SEEK_END);
+	language_buffer_size = ftell(f);
+	language_buffer = calloc(1, language_buffer_size);
+	fseek(f, 0, SEEK_SET);
+	fread(language_buffer, language_buffer_size, 1, f);
+	fclose(f);
+
+	language_strings = calloc(STR_COUNT, sizeof(char*));
+
+	char *dst, *token;
+	char tokenBuffer[64];
+	int i, stringIndex = 0, mode = 0;
+	for (i = 0; i < language_buffer_size; i++) {
+		char *src = &language_buffer[i];
+
+		switch (mode) {
+		case 0:
+			// Search for colon
+			if (*src == ':') {
+				dst = src + 1;
+				language_strings[stringIndex++] = dst;
+				mode = 1;
+			}
+			break;
+		case 1:
+			// Copy string over, stop at line break
+			if (*src == '{') {
+				token = src + 1;
+				mode = 2;
+			} else if (*src == '\n' || *src == '\r') {
+				*dst = 0;
+				mode = 0;
+			} else {
+				*dst++ = *src;
+			}
+			break;
+		case 2:
+			// Read token, convert to code
+			if (*src == '}') {
+				int tokenLength = min(src - token, sizeof(tokenBuffer) - 1);
+				memcpy(tokenBuffer, token, tokenLength);
+				tokenBuffer[tokenLength] = 0;
+				char code = format_get_code(tokenBuffer);
+				if (code == 0)
+					code = atoi(tokenBuffer);
+				*dst++ = code;
+				mode = 1;
+			}
+			break;
+		}
+	}
+	language_num_strings = stringIndex;
+
+	return 1;
+}
+
+void language_close()
+{
+	if (language_buffer != NULL)
+		free(language_buffer);
+	language_buffer_size = 0;
+
+	if (language_strings != NULL)
+		free(language_strings);
+	language_num_strings = 0;
+
+	gCurrentLanguage = LANGUAGE_UNDEFINED;
+}

src/language.h

@@ -0,0 +1,42 @@
+/*****************************************************************************
+ * Copyright (c) 2014 Ted John
+ * OpenRCT2, an open source clone of Roller Coaster Tycoon 2.
+ *
+ * This file is part of OpenRCT2.
+ *
+ * OpenRCT2 is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *****************************************************************************/
+
+#ifndef _LANGUAGE_H_
+#define _LANGUAGE_H_
+
+#include "rct2.h"
+#include "string_ids.h"
+
+enum {
+	LANGUAGE_UNDEFINED,
+	LANGUAGE_ENGLISH_UK,
+	LANGUAGE_ENGLISH_US,
+	LANGUAGE_DUTCH,
+	LANGUAGE_COUNT
+};
+
+extern const char *language_names[LANGUAGE_COUNT];
+extern int gCurrentLanguage;
+
+const char *language_get_string(rct_string_id id);
+int language_open(int id);
+void language_close();
+
+#endif

src/rct2.c

@@ -37,6 +37,7 @@
 #include "game.h"
 #include "gfx.h"
 #include "intro.h"
+#include "language.h"
 #include "map.h"
 #include "news_item.h"
 #include "object.h"
@@ -76,9 +77,6 @@ __declspec(dllexport) int StartOpenRCT(HINSTANCE hInstance, HINSTANCE hPrevInsta
 {
 	print_launch_information();
 
-	// OpenRCT2 initialisation
-	language_open("data/language/english.txt");
-
 	// Begin RCT2
 	RCT2_GLOBAL(RCT2_ADDRESS_HINSTANCE, HINSTANCE) = hInstance;
 	RCT2_GLOBAL(RCT2_ADDRESS_CMDLINE, LPSTR) = lpCmdLine;
@@ -88,6 +86,7 @@ __declspec(dllexport) int StartOpenRCT(HINSTANCE hInstance, HINSTANCE hPrevInsta
 	audio_get_devices();
 	RCT2_CALLPROC(0x0040502E); // get_dsound_devices()
 	config_init();
+	language_open(gGeneral_config.language);
 	rct2_init();
 	rct2_loop();
 	osinterface_free();

src/string_ids.c

@@ -25,6 +25,7 @@
 #include "currency.h"
 #include "game.h"
 #include "date.h"
+#include "language.h"
 #include "rct2.h"
 #include "string_ids.h"
 #include "util.h"
@@ -1471,7 +1472,7 @@ void format_string_code(unsigned char format_code, char **dest, char **args)
 		value = *((uint16*)*args);
 		*args += 2;
 
-		strcpy(*dest, get_string(STR_MONTH_MARCH + date_get_month(value)));
+		strcpy(*dest, language_get_string(STR_MONTH_MARCH + date_get_month(value)));
 		*dest += strlen(*dest);
 		break;
 	case FORMAT_VELOCITY:
@@ -1591,7 +1592,7 @@ void format_string_part(char **dest, rct_string_id format, char **args)
 {
 	if (format < 0x8000) {
 		// Language string
-		format_string_part_from_raw(dest, get_string(format), args);
+		format_string_part_from_raw(dest, language_get_string(format), args);
 	} else if (format < 0x9000) {
 		// Custom string
 		format -= 0x8000;
@@ -1690,108 +1691,4 @@ void reset_saved_strings() {
 	for (int i = 0; i < 1024; i++) {
 		RCT2_ADDRESS(0x135A8F4, uint8)[i * 32] = 0;
 	}
-}
-
-// Buffer storing all the string data
-long language_buffer_size = 0;
-char *language_buffer = NULL;
-
-// List of string pointers into the string data
-int language_num_strings = 0;
-char **language_strings = NULL;
-
-const char *get_string(rct_string_id id)
-{
-	const char *rct = RCT2_ADDRESS(0x009BF2D4, const char*)[id];
-	const char *openrct = language_strings == NULL ? NULL : language_strings[id];
-	const char *str = (openrct == NULL || strlen(openrct) == 0 ? rct : openrct);
-	return str == NULL ? "" : str;
-}
-
-/**
- * Partial support to open a uncompiled language file which parses tokens and converts them to the corresponding character
- * code. Due to resource strings (strings in scenarios and objects) being written to the original game's string table,
- * get_string will use those if the same entry in the loaded language is empty.
- * 
- * Unsure at how the original game decides which entries to write resource strings to, but this could affect adding new
- * strings for the time being. Further investigation is required.
- *
- * Also note that all strings are currently still ASCII. It probably can't be converted to UTF-8 until all game functions that
- * read / write strings in some way is decompiled. The original game used a DIY extended 8-bit extended ASCII set for special
- * characters, format codes and accents.
- *
- * In terms of reading the language files, the STR_XXXX part is completely ignored at the moment. It just parses each line from
- * the colon and thus not allowing gaps in the string indices.
- */
-int language_open(const char *filename)
-{
-	FILE *f = fopen(filename, "rb");
-	if (f == NULL)
-		return 0;
-
-	fseek(f, 0, SEEK_END);
-	language_buffer_size = ftell(f);
-	language_buffer = calloc(1, language_buffer_size);
-	fseek(f, 0, SEEK_SET);
-	fread(language_buffer, language_buffer_size, 1, f);
-	fclose(f);
-
-	language_strings = calloc(STR_COUNT, sizeof(char*));
-
-	char *dst, *token;
-	char tokenBuffer[64];
-	int i, stringIndex = 0, mode = 0;
-	for (i = 0; i < language_buffer_size; i++) {
-		char *src = &language_buffer[i];
-
-		switch (mode) {
-		case 0:
-			// Search for colon
-			if (*src == ':') {
-				dst = src + 1;
-				language_strings[stringIndex++] = dst;
-				mode = 1;
-			}
-			break;
-		case 1:
-			// Copy string over, stop at line break
-			if (*src == '{') {
-				token = src + 1;
-				mode = 2;
-			} else if (*src == '\n' || *src == '\r') {
-				*dst = 0;
-				mode = 0;
-			} else {
-				*dst++ = *src;
-			}
-			break;
-		case 2:
-			// Read token, convert to code
-			if (*src == '}') {
-				int tokenLength = min(src - token, sizeof(tokenBuffer) - 1);
-				memcpy(tokenBuffer, token, tokenLength);
-				tokenBuffer[tokenLength] = 0;
-				char code = format_get_code(tokenBuffer);
-				if (code == 0)
-					code = atoi(tokenBuffer);
-				*dst++ = code;
-				mode = 1;
-			}
-			break;
-		}
-	}
-	language_num_strings = stringIndex;
-
-	return 1;
-}
-
-void language_close()
-{
-	if (language_buffer != NULL)
-		free(language_buffer);
-	language_buffer_size = 0;
-
-	if (language_strings != NULL)
-		free(language_strings);
-	language_num_strings = 0;
 }

src/string_ids.h

@@ -28,9 +28,8 @@ void generate_string_file();
 void reset_saved_strings();
 void error_string_quit(int error, rct_string_id format);
 
-const char *get_string(rct_string_id id);
+char format_get_code(const char *token);
-int language_open(const char *filename);
+const char *format_get_token(char code);
-void language_close();
 
 enum {
 	// Font format codes

src/window_options.c

@@ -22,6 +22,7 @@
 #include "audio.h"
 #include "config.h"
 #include "gfx.h"
+#include "language.h"
 #include "osinterface.h"
 #include "string_ids.h"
 #include "viewport.h"
@@ -67,11 +68,14 @@ enum WINDOW_OPTIONS_WIDGET_IDX {
 	WIDX_HOTKEY_DROPDOWN,
 	WIDX_GENERAL_GROUP,
 	WIDX_REAL_NAME_CHECKBOX,
-	WIDX_SAVE_PLUGIN_DATA_CHECKBOX
+	WIDX_SAVE_PLUGIN_DATA_CHECKBOX,
+	WIDX_LANGUAGE_GROUP,
+	WIDX_LANGUAGE_DROPDOWN,
+	WIDX_LANGUAGE_DROPDOWN_BUTTON
 };
 
 #define WW 310
-#define WH 399
+#define WH 437
 
 static rct_widget window_options_widgets[] = {
 	{ WWT_FRAME,			0,	0,		WW - 1,	0,		WH - 1,	STR_NONE,		STR_NONE },
@@ -110,6 +114,9 @@ static rct_widget window_options_widgets[] = {
 	{ WWT_GROUPBOX,			0,	3,		306,	344,	392,	STR_GENERAL,	STR_NONE },
 	{ WWT_CHECKBOX,			2,	10,		299,	358,	369,	STR_REAL_NAME,	STR_REAL_NAME_TIP },
 	{ WWT_CHECKBOX,			2,	10,		299,	372,	384,	STR_SAVE_PLUGIN_DATA, STR_SAVE_PLUGIN_DATA_TIP },
+	{ WWT_GROUPBOX,			0,	3,		306,	399,	430,	2776,			STR_NONE },
+	{ WWT_DROPDOWN,			0,	10,		299,	413,	424,	STR_NONE,		STR_NONE },	// language
+	{ WWT_DROPDOWN_BUTTON,	0,	288,	298,	414,	423,	0x36C,			STR_NONE },
 	{ WIDGETS_END },
 };
 
@@ -119,7 +126,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 static void window_options_dropdown();
 static void window_options_invalidate();
 static void window_options_paint();
-static void window_options_draw_dropdown_box(rct_window *w, rct_widget *widget, int num_items);
+static void window_options_show_dropdown(rct_window *w, rct_widget *widget, int num_items);
 static void window_options_update_height_markers();
 
 static void* window_options_events[] = {
@@ -326,7 +333,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 			gDropdownItemsArgs[i] = 1170 | ((uint64)(intptr_t)gAudioDevices[i].name << 16);
 		}
 
-		window_options_draw_dropdown_box(w, widget, gAudioDeviceCount);
+		window_options_show_dropdown(w, widget, gAudioDeviceCount);
 
 		gDropdownItemsChecked |= (1 << RCT2_GLOBAL(0x9AF280, uint32));
 		break;
@@ -336,7 +343,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 		gDropdownItemsArgs[0] = STR_UNITS;
 		gDropdownItemsArgs[1] = STR_REAL_VALUES;
 
-		window_options_draw_dropdown_box(w, widget, 2);
+		window_options_show_dropdown(w, widget, 2);
 
 		gDropdownItemsChecked =
 			(RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_FLAGS, uint8) &
@@ -348,7 +355,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 		gDropdownItemsArgs[0] = STR_OFF;
 		gDropdownItemsArgs[1] = STR_ON;
 
-		window_options_draw_dropdown_box(w, widget, 2);
+		window_options_show_dropdown(w, widget, 2);
 
 		gDropdownItemsChecked = 1 << RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_MUSIC, uint8);
 		break;
@@ -360,7 +367,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 			gDropdownItemsArgs[i] = STR_SOUND_LOW + i; // low, medium, high
 		}
 
-		window_options_draw_dropdown_box(w, widget, num_items);
+		window_options_show_dropdown(w, widget, num_items);
 
 		gDropdownItemsChecked = 1 << RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_SOUND_QUALITY, uint8);
 		break;
@@ -372,7 +379,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 			gDropdownItemsArgs[i] = STR_POUNDS + i; // all different currencies
 		}
 
-		window_options_draw_dropdown_box(w, widget, num_items);
+		window_options_show_dropdown(w, widget, num_items);
 
 		gDropdownItemsChecked = 1 << (RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_CURRENCY, uint8) & 0x3F);
 		break;
@@ -382,7 +389,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 		gDropdownItemsArgs[0] = STR_IMPERIAL;
 		gDropdownItemsArgs[1] = STR_METRIC;
 
-		window_options_draw_dropdown_box(w, widget, 2);
+		window_options_show_dropdown(w, widget, 2);
 
 		gDropdownItemsChecked = 1 << RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_METRIC, uint8);
 		break;
@@ -397,7 +404,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 		gDropdownItemsArgs[1] = STR_FAHRENHEIT;
 		gDropdownItemsArgs[2] = STR_METRIC;
 
-		window_options_draw_dropdown_box(w, widget, 3);
+		window_options_show_dropdown(w, widget, 3);
 
 		gDropdownItemsChecked = 1 << gGeneral_config.fullscreen_mode;
 		break;
@@ -407,7 +414,7 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 		gDropdownItemsArgs[0] = STR_CELSIUS;
 		gDropdownItemsArgs[1] = STR_FAHRENHEIT;
 
-		window_options_draw_dropdown_box(w, widget, 2);
+		window_options_show_dropdown(w, widget, 2);
 
 		gDropdownItemsChecked = 1 << RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_TEMPERATURE, uint8);
 		break;
@@ -417,10 +424,18 @@ static void window_options_mousedown(int widgetIndex, rct_window*w, rct_widget*
 		gDropdownItemsArgs[0] = STR_WHITE;
 		gDropdownItemsArgs[1] = STR_TRANSLUCENT;
 
-		window_options_draw_dropdown_box(w, widget, 2);
+		window_options_show_dropdown(w, widget, 2);
 
 		gDropdownItemsChecked = 1 << RCT2_GLOBAL(RCT2_ADDRESS_CONFIG_CONSTRUCTION_MARKER, uint8);
 		break;
+	case WIDX_LANGUAGE_DROPDOWN_BUTTON:
+		for (i = 1; i < LANGUAGE_COUNT; i++) {
+			gDropdownItemsFormat[i - 1] = 2777;
+			gDropdownItemsArgs[i - 1] = (sint64)language_names[i];
+		}
+		window_options_show_dropdown(w, widget, LANGUAGE_COUNT - 1);
+		gDropdownItemsChecked = 1 << (gCurrentLanguage - 1);
+		break;
 	}
 }
 
@@ -544,6 +559,14 @@ static void window_options_dropdown()
 			gfx_invalidate_screen();
 		}
 		break;
+	case WIDX_LANGUAGE_DROPDOWN_BUTTON:
+		if (dropdownIndex != gCurrentLanguage - 1) {
+			language_open(dropdownIndex + 1);
+			gGeneral_config.language = dropdownIndex + 1;
+			config_save();
+			gfx_invalidate_screen();
+		}
+		break;
 	}
 }
 
@@ -708,10 +731,19 @@ static void window_options_paint()
 		w->y + window_options_widgets[WIDX_MUSIC].top + 1);
 	gfx_draw_string_left(dpi, STR_SOUND_QUALITY, w, 0, w->x + 10,
 		w->y + window_options_widgets[WIDX_SOUND_QUALITY].top + 1);
+
+	// language
+	gfx_draw_string(
+		dpi,
+		(char*)language_names[gCurrentLanguage],
+		12,
+		w->x + window_options_widgets[WIDX_LANGUAGE_DROPDOWN].left + 1,
+		w->y + window_options_widgets[WIDX_LANGUAGE_DROPDOWN].top
+	);
 }
 
 // helper function, all dropdown boxes have similar properties
-static void window_options_draw_dropdown_box(rct_window *w, rct_widget *widget, int num_items)
+static void window_options_show_dropdown(rct_window *w, rct_widget *widget, int num_items)
 {
 	window_dropdown_show_text_custom_width(
 		w->x + widget->left,
@@ -721,7 +753,7 @@ static void window_options_draw_dropdown_box(rct_window *w, rct_widget *widget,
 		0x80,
 		num_items,
 		widget->right - widget->left - 3
-		);
+	);
 }
 
 static void window_options_update_height_markers()