Added basic locale support

src/dusk/CMakeLists.txt

@@ -26,6 +26,7 @@ add_subdirectory(assert)
 add_subdirectory(display)
 add_subdirectory(entity)
 add_subdirectory(item)
+add_subdirectory(locale)
 add_subdirectory(physics)
 add_subdirectory(ui)
 add_subdirectory(util)

src/dusk/entity/npc.c

@@ -6,8 +6,8 @@
  */
 
 #include "npc.h"
-
 #include "ui/uitextbox.h"
+#include "locale/language.h"
 
 void npcInit(entity_t *entity) {
 
@@ -18,10 +18,11 @@ void npcUpdate(entity_t *entity) {
 }
 
 void npcInteract(entity_t *player, entity_t *self) {
-  uiTextboxSetText(
-    "Hello World how are you today? Hope things are going well for you! I am "
-    "having a great day, hope you are too. Did I ever tell you about the tragedy "
-    "of Darth Plagueis the Wise? He was a dark lord of the Sith, "
-    "so powerful and so wise he could use the Force to influence the midichlorians"
-  );
+  // uiTextboxSetText(
+  //   "Hello World how are you today? Hope things are going well for you! I am "
+  //   "having a great day, hope you are too. Did I ever tell you about the tragedy "
+  //   "of Darth Plagueis the Wise? He was a dark lord of the Sith, "
+  //   "so powerful and so wise he could use the Force to influence the midichlorians"
+  // );
+  uiTextboxSetText(languageGet("meta.language.name"));
 }

src/dusk/locale/CMakeLists.txt

@@ -0,0 +1,10 @@
+# Copyright (c) 2025 Dominic Masters
+#
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+# Sources
+target_sources(${DUSK_TARGET_NAME}
+  PRIVATE
+    language.c
+)

src/dusk/locale/language.c

@@ -0,0 +1,47 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "language.h"
+#include "assert/assert.h"
+
+language_t LANGUAGE;
+
+void languageInit(void) {
+  LANGUAGE.current = LANGUAGE_EN;
+}
+
+const char_t * languageGet(const char_t *key) {
+  assertNotNull(key, "Key cannot be NULL");
+  assertTrue(LANGUAGE.current < LANGUAGE_COUNT, "Invalid language index");
+
+  int16_t keyIndex = -1;
+  for(uint16_t i = 0; i < LANGUAGE_COUNT; i++) {
+    if(strcmp(LANGUAGE_KEYS[LANGUAGE.current][i], key) != 0) {
+      continue;
+    }
+    keyIndex = i;
+    break;
+  }
+  assertTrue(keyIndex != -1, "Key not found in language");
+  return LANGUAGE_VALUES[LANGUAGE.current][keyIndex];
+}
+
+uint16_t langaugeGetLength(const char_t *key) {
+  assertNotNull(key, "Key cannot be NULL");
+  assertTrue(LANGUAGE.current < LANGUAGE_COUNT, "Invalid language index");
+
+  int16_t keyIndex = -1;
+  for(uint16_t i = 0; i < LANGUAGE_COUNT; i++) {
+    if(strcmp(LANGUAGE_KEYS[LANGUAGE.current][i], key) != 0) {
+      continue;
+    }
+    keyIndex = i;
+    break;
+  }
+  assertTrue(keyIndex != -1, "Key not found in language");
+  return strlen(LANGUAGE_VALUES[LANGUAGE.current][keyIndex]);
+}

src/dusk/locale/language.h

@@ -0,0 +1,39 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "locale/language/languages.h"
+
+typedef struct {
+  uint8_t current;
+} language_t;
+
+extern language_t LANGUAGE;
+
+/**
+ * Initializes the language system.
+ * 
+ * This function sets up the language system, loading the default language
+ * and preparing any necessary resources for language handling.
+ */
+void languageInit(void);
+
+/**
+ * Gets a language string by its key.
+ * 
+ * @param key The key for the language string.
+ * @return The language string associated with the key.
+ */
+const char_t * languageGet(const char_t *key);
+
+/**
+ * Gets the length of a language string by its key.
+ * 
+ * @param key The key for the language string.
+ * @return The length of the language string associated with the key.
+ */
+uint16_t langaugeGetLength(const char_t *key);

tools/languagecompile/languagecompile.py

@@ -77,7 +77,7 @@ for jsonFile in jsonFiles:
 
     f.write(f"#define LANGUAGE_{langUpper}_CODE \"{languageName}\"\n")
     f.write(f"#define LANGUAGE_{langUpper}_NAME \"{keyValues['meta.language.name']}\"\n")
-    f.write(f"#define LANGUAGE_{langUpper}_COUNT_KEYS {len(keyValues)}\n\n")
+    f.write(f"#define LANGUAGE_{langUpper}_COUNT {len(keyValues)}\n\n")
 
     # Write keys
     f.write(f"static const char_t *LANGUAGE_{langUpper}_KEYS[] = {{\n")
@@ -113,24 +113,35 @@ with open(mainOutputFile, 'w', encoding='utf-8') as f:
     f.write(f'#include "locale/language/{lang.lower()}.h"\n')
   f.write("\n")
 
-  f.write(f"#define LANGUAGES_COUNT {len(languages)}\n\n")
+  f.write(f"#define LANGUAGE_COUNT {len(languages)}\n\n")
 
-  f.write("static const char_t *LANGUAGE_CODES[] = {\n")
+  index = 0
+  for lang in languages:
+    f.write(f"#define LANGUAGE_{lang} {index}\n")
+    index += 1
+  f.write("\n")
+
+  f.write("static const char_t* LANGUAGE_CODES[] = {\n")
   for lang in languages:
     f.write(f'  LANGUAGE_{lang}_CODE,\n')
   f.write("};\n\n")
 
-  f.write("static const char_t *LANGUAGE_NAMES[] = {\n")
+  f.write("static const char_t* LANGUAGE_NAMES[] = {\n")
   for lang in languages:
     f.write(f'  LANGUAGE_{lang}_NAME,\n')
   f.write("};\n\n")
 
-  f.write("static const char_t *LANGUAGE_KEYS[] = {\n")
+  f.write("static const char_t** LANGUAGE_KEYS[] = {\n")
   for lang in languages:
     f.write(f'  LANGUAGE_{lang}_KEYS,\n')
   f.write("};\n\n")
 
-  f.write("static const char_t *LANGUAGE_VALUES[] = {\n")
+  f.write("static const int LANGUAGE_COUNTS[] = {\n")
+  for lang in languages:
+    f.write(f'  LANGUAGE_{lang}_COUNT,\n')
+  f.write("};\n\n")
+
+  f.write("static const char_t** LANGUAGE_VALUES[] = {\n")
   for lang in languages:
     f.write(f'  LANGUAGE_{lang}_VALUES,\n')
   f.write("};\n\n")