Terminal Screens

Ratatui TUIs often use an alternate screen (separate from stdout). Bevy REPL favors a "partial-TUI" that renders the prompt while keeping stdout usable.

• When REPL is active, the terminal runs in raw mode and prints to stdout.
• Prefer bevy_repl::repl_println! over println! while REPL is active to avoid cursor/newline glitches.
• If you enable a full alternate screen via bevy_ratatui::RatatuiPlugins, REPL still works but output behavior changes.

repl_println! ensures safe, consistent output:

#![allow(unused)]
fn main() {
fn on_ping(_t: Trigger<Ping>) {
    bevy_repl::repl_println!("Pong");
}

fn instructions() {
    bevy_repl::repl_println!();
    bevy_repl::repl_println!("Welcome to the Bevy REPL!");
}
}