From 81887d976ebb809b612cd0d271ebb45d78268c24 Mon Sep 17 00:00:00 2001
From: Dnomd343 <i@343.re>
Date: Fri, 6 Jan 2023 11:44:19 +0800
Subject: [PATCH] feat: common code check function

---
 klotski/CMakeLists.txt |  2 +-
 klotski/common_code.cc | 11 +++++++++++
 klotski/common_code.h  |  8 ++++++++
 klotski/main.cc        | 16 ++++++++++++----
 4 files changed, 32 insertions(+), 5 deletions(-)
 create mode 100644 klotski/common_code.cc
 create mode 100644 klotski/common_code.h

diff --git a/klotski/CMakeLists.txt b/klotski/CMakeLists.txt
index 261c9d5..7a19422 100644
--- a/klotski/CMakeLists.txt
+++ b/klotski/CMakeLists.txt
@@ -1,4 +1,4 @@
 cmake_minimum_required(VERSION 3.0)
 set(CMAKE_CXX_STANDARD 14)
 
-add_executable(klotski main.cc common.cc all_cases.cc short_code.cc)
+add_executable(klotski main.cc common.cc all_cases.cc short_code.cc common_code.cc)
diff --git a/klotski/common_code.cc b/klotski/common_code.cc
new file mode 100644
index 0000000..fae0267
--- /dev/null
+++ b/klotski/common_code.cc
@@ -0,0 +1,11 @@
+#include "common.h"
+#include "common_code.h"
+
+bool CommonCode::check(uint64_t common_code) {
+    uint32_t head = common_code >> 32;
+    auto range = (uint32_t)common_code;
+    if (head >= 16 || (head & 0b11) == 0b11) { // check 2x2 block address
+        return false; // invalid common code
+    }
+    return Common::check_case(head, Common::range_reverse(range)); // check by head and range
+}
diff --git a/klotski/common_code.h b/klotski/common_code.h
new file mode 100644
index 0000000..9a2005c
--- /dev/null
+++ b/klotski/common_code.h
@@ -0,0 +1,8 @@
+#pragma once
+
+#include <cstdint>
+
+class CommonCode {
+public:
+    static bool check(uint64_t common_code);
+};
diff --git a/klotski/main.cc b/klotski/main.cc
index 1ced2bb..659653e 100644
--- a/klotski/main.cc
+++ b/klotski/main.cc
@@ -1,6 +1,7 @@
 #include <iostream>
 //#include "all_cases.h"
 #include "short_code.h"
+#include "common_code.h"
 
 int main() {
 
@@ -31,11 +32,18 @@ int main() {
 //    s.speed_up(ShortCode::Mode::NORMAL);
 //    std::cout << s.basic_ranges.size() << std::endl;
 
-    auto s = ShortCode();
-    s.speed_up(ShortCode::Mode::NORMAL); // enter normal mode first
+//    auto s = ShortCode();
+//    s.speed_up(ShortCode::Mode::NORMAL); // enter normal mode first
+//
+//    printf("%d\n", s.tiny_encode(0x6EC0F8800));
+//    printf("%09lX\n", s.tiny_decode(14323231));
+
 
-    printf("%d\n", s.tiny_encode(0x6EC0F8800));
-    printf("%09lX\n", s.tiny_decode(14323231));
+    if (CommonCode::check(0x4FEA13400)) {
+        std::cout << "true" << std::endl;
+    } else {
+        std::cout << "false" << std::endl;
+    }
 
     return 0;
 }