diff --git a/.Jules/palette.md b/.Jules/palette.md index c4e3778..925ae53 100644 --- a/.Jules/palette.md +++ b/.Jules/palette.md @@ -25,3 +25,7 @@ ## 2026-03-02 - Hiding the Cursor in CLI Games **Learning:** In terminal applications that require rapid visual updates or where user input doesn't involve typing text, an actively blinking cursor can be a visual distraction. Hiding it during interaction (`\033[?25l`) and rigorously ensuring it is restored (`\033[?25h`) on exit—including signal interrupts—significantly improves the aesthetic and focus. **Action:** Always hide the cursor for interactive CLI games and explicitly restore it across all exit paths, including async-signal-safe signal handlers. + +## 2026-06-15 - Erase in Line (`\033[K`) for clean terminal updates +**Learning:** When updating a terminal line dynamically using a carriage return (`\r`), relying on hardcoded padding spaces to overwrite old content is fragile and messy. If the new string is shorter than the old one, the trailing characters from the previous string remain visible, leading to visual artifacts. +**Action:** Use the ANSI escape sequence `\033[K` (Erase in Line) immediately after `\r`. This clears the line from the cursor to the end, ensuring that whatever follows is printed on a clean slate. diff --git a/.gitignore b/.gitignore index eb2c19a..d07c78a 100644 --- a/.gitignore +++ b/.gitignore @@ -44,3 +44,4 @@ highscore.txt # Persistent data highscore.txt +venv/ diff --git a/src/main.cpp b/src/main.cpp index e72f1da..0231ec5 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -94,7 +94,7 @@ int main() { } for (int i = 3; i > 0; --i) { - std::cout << "\rStarting in " << i << "... " << std::flush; + std::cout << "\r\033[KStarting in " << i << "... " << std::flush; auto start_wait = std::chrono::steady_clock::now(); while (std::chrono::duration_cast(std::chrono::steady_clock::now() - start_wait).count() < 1000) { int elapsed = std::chrono::duration_cast(std::chrono::steady_clock::now() - start_wait).count(); @@ -108,7 +108,7 @@ int main() { } } } - std::cout << "\rGO! \n" << std::flush; + std::cout << "\r\033[KGO!\n" << std::flush; std::this_thread::sleep_for(std::chrono::milliseconds(200)); tcflush(STDIN_FILENO, TCIFLUSH); @@ -137,10 +137,10 @@ int main() { } if (updateUI) { - std::cout << "\r" << CLR_SCORE << "Score: " << score << CLR_RESET << " " + std::cout << "\r\033[K" << CLR_SCORE << "Score: " << score << CLR_RESET << " " << (hardMode ? CLR_HARD "[HARD MODE]" : CLR_NORM "[NORMAL MODE]") << (score > initialHighscore && initialHighscore > 0 ? " NEW BEST! 🥳" : "") - << " " << std::flush; + << std::flush; updateUI = false; } }