From 1a6f5303cf55ab7c6f25452bf50f72ed96fc503e Mon Sep 17 00:00:00 2001
From: sweetbread <glebzaharov1@gmail.com>
Date: Sun, 28 Jan 2024 00:13:35 +0300
Subject: [PATCH] feat: Languages

---
 example/hwa.rs         | 11 +++++++++--
 src/func_constants.inc |  2 ++
 src/modules/system.rs  | 32 ++++++++++++++++++++++++++++++++
 src/sys.rs             |  4 ++++
 src/syscalls.S         |  7 +++++++
 5 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/example/hwa.rs b/example/hwa.rs
index 8c0fcc5..e9fe2d6 100644
--- a/example/hwa.rs
+++ b/example/hwa.rs
@@ -6,6 +6,7 @@ use cstr_core::{cstr, CStr};
 use kos::{
     graphics::{display_message, Color, Dot, Size},
     input::fetch_key,
+    system::{get_lang, Lang},
     threads::{exit, fetch_event, Event},
     windows::{
         define_button, define_window, end_window_draw, get_button_id, start_window_draw,
@@ -43,11 +44,17 @@ fn draw_window(c: usize) {
         None,
     );
 
+    let btn_str = match get_lang() {
+        Lang::German => format!("Taste gedrückt: {} mal\0", c),
+        Lang::Russian => format!("Кнопка нажата: {} раз\0", c),
+        Lang::French => format!("Button enfoncé : {} fois\0", c),
+        _ => format!("Button pressed: {} times\0", c),
+    };
+
     display_message(
         Dot { x: 10, y: 30 },
         Color::rgb(0, 0, 0),
-        CStr::from_bytes_with_nul(format!("Button pressed: {} times\0", c).as_bytes())
-            .unwrap_or(cstr!("String error")),
+        CStr::from_bytes_with_nul(btn_str.as_bytes()).unwrap_or(cstr!("String error")),
         None,
     );
 
diff --git a/src/func_constants.inc b/src/func_constants.inc
index e9fff2c..636d5ab 100644
--- a/src/func_constants.inc
+++ b/src/func_constants.inc
@@ -10,6 +10,8 @@ SF_REDRAW               = 12
     SSF_BEGIN_DRAW  = 1
     SSF_END_DRAW    = 2
 SF_GET_BUTTON           = 17
+SF_SYSTEM_GET           = 26
+    SSF_SYS_LANG    = 5
 SF_BOARD                = 63
     SSF_DEBUG_WRITE = 1
 SF_SYS_MISC             = 68
diff --git a/src/modules/system.rs b/src/modules/system.rs
index d500d25..3506fac 100644
--- a/src/modules/system.rs
+++ b/src/modules/system.rs
@@ -1,4 +1,5 @@
 use crate::sys;
+use crate::throw_new;
 use alloc::string::String;
 use cstr_core::CStr;
 
@@ -24,6 +25,37 @@ impl Debuggable for &CStr {
     }
 }
 
+pub enum Lang {
+    English,
+    Finnish,
+    German,
+    Russian,
+    French,
+    Estonian,
+    Spanish,
+    Italian,
+}
+
+pub fn get_lang() -> Lang {
+    unsafe {
+        let l = sys::get_lang();
+        return match l {
+            1 => Lang::English,
+            2 => Lang::Finnish,
+            3 => Lang::German,
+            4 => Lang::Russian,
+            5 => Lang::French,
+            6 => Lang::Estonian,
+            7 => Lang::Spanish,
+            8 => Lang::Italian,
+            _ => {
+                throw_new!(format!("Unknown lang: {}", l));
+                Lang::English
+            }
+        };
+    }
+}
+
 pub fn debug_write<Str: Debuggable>(text: Str) {
     for byte in text.data_iter() {
         unsafe {
diff --git a/src/sys.rs b/src/sys.rs
index 9489c35..12fe67d 100644
--- a/src/sys.rs
+++ b/src/sys.rs
@@ -36,6 +36,10 @@ extern "C" {
     #[link_name = "_get_button_id"]
     pub fn get_button_id() -> u32;
 
+    // 26.5
+    #[link_name = "_get_lang"]
+    pub fn get_lang() -> u32;
+
     // 63.1
     #[link_name = "_debug_write"]
     pub fn _debug_write(cl: u8);
diff --git a/src/syscalls.S b/src/syscalls.S
index e4216e6..0ac2a77 100644
--- a/src/syscalls.S
+++ b/src/syscalls.S
@@ -16,6 +16,7 @@ section '.text'
     public _init_heap
     public _alloc
     public _free
+    public _get_lang
 
 _exit:
     mov eax, SF_TERMINATE_PROCESS
@@ -111,3 +112,9 @@ _free:
     int 0x40
     ret
 
+_get_lang:
+    mov eax, SF_SYSTEM_GET
+    mov ebx, SSF_SYS_LANG
+    int 0x40
+    ret
+