Linux - More compatibility

README.md

@@ -124,6 +124,6 @@ g++ levelmaker.cpp -o levelmaker -std=c++17
 ...you will see a window like the one above, now you can create your own level by moving the cursor with `W`, `A`, `S`, `D` and placing or removing a block with `P` and `R`.
 
 ℹ️ - The blocks are placed under the `$` character if possible
-⚠️ - Due to problems with raw input, you will have to press `ENTER` after each key press
+⚠️ - Due to problems with raw input, you will have to press `ENTER` after each key press, since `v0.5` this is no longer the case for Linux users.
 
 Then you can save your level by pressing `Q` and the level will be saved in the `levels` folder.

fullkning.cpp

@@ -23,6 +23,31 @@
 
         tcsetattr(0, TCSANOW, &noecho);
     }
+#elif __linux__    
+    #include <unistd.h>
+    #include <termios.h>
+
+    char getch(void) {
+        char buf = 0;
+        struct termios old = {0};
+        fflush(stdout);
+        if(tcgetattr(0, &old) < 0)
+            perror("tcsetattr()");
+        old.c_lflag &= ~ICANON;
+        old.c_lflag &= ~ECHO;
+        old.c_cc[VMIN] = 1;
+        old.c_cc[VTIME] = 0;
+        if(tcsetattr(0, TCSANOW, &old) < 0)
+            perror("tcsetattr ICANON");
+        if(read(0, &buf, 1) < 0)
+            perror("read()");
+        old.c_lflag |= ICANON;
+        old.c_lflag |= ECHO;
+        if(tcsetattr(0, TCSADRAIN, &old) < 0)
+            perror("tcsetattr ~ICANON");
+        // printf("%c\n", buf);
+        return buf;
+    }
 #endif
 
 #define WIDTH 10
@@ -326,8 +351,8 @@ int main(int argc, char* argv[]) {
                 return getch();
             #elif __APPLE__
                 return getchar();
-            #else
-                return getchar();
+            #elif __linux__
+                return (int)getch();
             #endif
         });
         while (future.wait_for(std::chrono::milliseconds(300)) != std::future_status::ready) {
@@ -346,6 +371,9 @@ int main(int argc, char* argv[]) {
             std::cout << "Cooldown: " << std::max(game::frame_countdown, (short)0) << "      ";
             cursor.set(14, 15);
             std::cout << "Selected: " << (game::hooked_block == BlockType::Sand ? "Sand" : "Stone") << "      ";
+            #if __linux__ // Ubuntu 22.04 has a low refresh rate...
+                std::cout << std::flush;
+            #endif
         }
         if (victory())
             break;
@@ -382,9 +410,9 @@ int main(int argc, char* argv[]) {
     } else {
         std::cout << "You won with " << game::score << " points!" << std::endl;
     }
-    #ifdef _WIN32
+    #if defined(_WIN32) or defined(__linux__)
         getch();
-    #else
+    #elif __APPLE__
         getchar();
     #endif
     return 0;

levelmaker.cpp

@@ -3,6 +3,31 @@
 #include <fstream>
 #ifdef _WIN32
     #include <conio.h>
+#elif __linux__    
+    #include <unistd.h>
+    #include <termios.h>
+
+    char getch(void) {
+        char buf = 0;
+        struct termios old = {0};
+        fflush(stdout);
+        if(tcgetattr(0, &old) < 0)
+            perror("tcsetattr()");
+        old.c_lflag &= ~ICANON;
+        old.c_lflag &= ~ECHO;
+        old.c_cc[VMIN] = 1;
+        old.c_cc[VTIME] = 0;
+        if(tcsetattr(0, TCSANOW, &old) < 0)
+            perror("tcsetattr ICANON");
+        if(read(0, &buf, 1) < 0)
+            perror("read()");
+        old.c_lflag |= ICANON;
+        old.c_lflag |= ECHO;
+        if(tcsetattr(0, TCSADRAIN, &old) < 0)
+            perror("tcsetattr ~ICANON");
+        // printf("%c\n", buf);
+        return buf;
+    }
 #endif
 
 #define WIDTH 10
@@ -46,7 +71,7 @@ int main(int argc, char* argv[]) {
     std::cout << "Use {Q}+ENTER to quit" << std::endl;
 
     while (true) {
-        #ifdef _WIN32
+        #if _WIN32 or __linux__
             char input = getch();
         #elif __APPLE__
             cursor_handler.set({20, 30});