Add i18n system and spanish translation

2048.c

@@ -16,6 +16,8 @@
 #include <stdint.h>
 #include <time.h>
 #include <signal.h>
+// Locale language
+#include "language_header.h"
 
 #define SIZE 4
 uint32_t score=0;
@@ -75,7 +77,7 @@ void drawBoard(uint8_t board[SIZE][SIZE]) {
 		printf("\n");
 	}
 	printf("\n");
-	printf("        ←,↑,→,↓ or q        \n");
+	printf("        ←,↑,→,↓ %s q        \n",LOCALE_WORDS[0]);
 	printf("\033[A"); // one line up
 }
 
@@ -350,7 +352,7 @@ int test() {
 }
 
 void signal_callback_handler(int signum) {
-	printf("         TERMINATED         \n");
+	printf("         %s         \n",LOCALE_WORDS[1]);
 	setBufferedInput(true);
 	printf("\033[?25h\033[m");
 	exit(signum);
@@ -409,20 +411,20 @@ int main(int argc, char *argv[]) {
 			addRandom(board);
 			drawBoard(board);
 			if (gameEnded(board)) {
-				printf("         GAME OVER          \n");
+				printf("         %s          \n",LOCALE_WORDS[2]);
 				break;
 			}
 		}
 		if (c=='q') {
-			printf("        QUIT? (y/n)         \n");
+			printf("        %s (y/n)         \n",LOCALE_WORDS[3]);
 			c=getchar();
 			if (c=='y') {
 				break;
 			}
 			drawBoard(board);
 		}
 		if (c=='r') {
-			printf("       RESTART? (y/n)       \n");
+			printf("       %s (y/n)       \n",LOCALE_WORDS[4]);
 			c=getchar();
 			if (c=='y') {
 				initBoard(board);

README.md

@@ -44,6 +44,20 @@ For the blue-to-red color scheme (requires 256 colors):
 ./2048 bluered
 ```
 
+#### Internationalization
+The game supports English and Spanish but if you want to have a version in your locale language (and you have your system in that language), you can make your own tranlation. Run:
+
+```
+sh include_language_header.sh
+```
+
+That creates a file in "languages" directory which you have to edit. Finally compile 2048.c to apply changes:
+
+```
+gcc -o 2048 2048.c
+./2048
+```
+
 ### Contributing
 
 Contributions are very welcome. Always run the tests before committing using:

README_es.md

@@ -44,6 +44,19 @@ Para el esquema de colores de azul a rojo (requiere 256 colores):
 ./2048 bluered
 ```
 
+#### Internacionalización
+El juego soporta inglés y español pero si quieres tener una versión en tu lenguaje local (y tienes tu sistema en ese lenguaje), puedes hacer tu propia traducción. Corre:
+
+```
+sh include_language_header.sh
+```
+Eso crea un archivo en el directorio "languages" el cual tienes que editar. Finalmente compila 2048.c para aplicar los cambios:
+
+```
+gcc -o 2048 2048.c
+./2048
+```
+
 ### Contribuciones
 
 Las contribuciones son siempre bienvenidas. Siempre correr los tests antes de commitear usando:

include_language_header.sh

@@ -0,0 +1,16 @@
+lang=$(locale | grep LANGUAGE | cut -d= -f2 | cut -d_ -f1)
+if test -f language_header.h; then
+	rm language_header.h
+fi
+
+echo "#include \"languages/$lang.h\"" >> language_header.h
+
+if test ! -f languages/$lang.h; then
+	echo "// To get a translated version of the game replace/translate the words between braces in the same order" >> languages/$lang.h
+	echo "// and then compile 2048.c (execute \$gcc -o 2048 2048.c)" >> languages/$lang.h
+	echo "const char * LOCALE_WORDS[] = {\"or\",\"TERMINATED\",\"GAME OVER\",\"QUIT?\",\"RESET?\"};" >> languages/$lang.h
+	echo "languages/$lang.h file was created. Edit it and then compile 2048.c (execute \$gcc -o 2048 2048.c) to get a traslated version of the game"
+fi
+
+
+

language_header.h

@@ -0,0 +1 @@
+#include "languages/en.h"

languages/en.h

@@ -0,0 +1 @@
+const char * LOCALE_WORDS[] = {"or","TERMINATED","GAME OVER","QUIT?","RESET?"};

languages/es.h

@@ -0,0 +1 @@
+const char * LOCALE_WORDS[] = {"o","TERMINADO","FIN DEL JUEGO","¿SALIR?","¿REINICIAR?"};