# lib.rs - source
Source of the Rust file `Examples\Arduboy-Tutorials\progmem\src\lib.rs`.

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    #![no_std]
    #![allow(non_upper_case_globals)]
    #![feature(const_trait_impl)]

    //Include the Arduboy Library
    //Initialize the arduboy object
    use arduboy_rust::prelude::*;
    use arduboy_tones::tones_pitch::*;
    const arduboy: Arduboy2 = Arduboy2::new();
    const sound: ArduboyTones = ArduboyTones::new();
    // Progmem data
    progmem!(
        static text1: [u8; _] = *b"I'm a PROGMEM Text\0";
        static player_sprite1: [u8; _] = [
            16, 16, 0xfe, 0x01, 0x3d, 0x25, 0x25, 0x3d, 0x01, 0x01, 0xc1, 0x01, 0x3d, 0x25, 0x25, 0x3d,
            0x01, 0xfe, 0x7f, 0x80, 0x9c, 0xbc, 0xb0, 0xb0, 0xb2, 0xb2, 0xb3, 0xb0, 0xb0, 0xb0, 0xbc,
            0x9c, 0x80, 0x7f,
        ];
        static tones: [u16; _] = [
            NOTE_E4,
            400,
            NOTE_D4,
            200,
            NOTE_C4,
            400,
            NOTE_REST,
            200,
            NOTE_D4,
            200,
            NOTE_C4,
            300,
            NOTE_REST,
            100,
            NOTE_C4,
            300,
            NOTE_REST,
            100,
            NOTE_E4,
            300,
            NOTE_REST,
            100,
            NOTE_G4,
            300,
            NOTE_REST,
            100,
            NOTE_F4,
            300,
            NOTE_REST,
            100,
            NOTE_A4,
            300,
            NOTE_REST,
            100,
            NOTE_D5H,
            200,
            NOTE_REST,
            200,
            NOTE_D5H,
            200,
            NOTE_REST,
            1500,
            TONES_REPEAT,
        ];
    );

    // dynamic ram variables
    static mut playerx: c_int = 5;
    static mut playery: c_int = 10;

    // The setup() function runs once when you turn your Arduboy on
    #[no_mangle]
    pub unsafe extern "C" fn setup() {
        // put your setup code here, to run once:
        arduboy.begin();
        arduboy.clear();
        arduboy.set_frame_rate(60);
        // load sound sequence from progmem
        sound.tones(get_tones_addr!(tones));
    }
    // The loop() function repeats forever after setup() is done
    #[no_mangle]
    #[export_name = "loop"]
    pub unsafe extern "C" fn loop_() {
        // put your main code here, to run repeatedly:
        if !arduboy.next_frame() {
            return;
        }
        arduboy.poll_buttons();
        if arduboy.pressed(LEFT) {
            playerx -= 1;
        }
        if arduboy.pressed(RIGHT) {
            playerx += 1;
        }
        if arduboy.pressed(UP) {
            playery -= 1;
        }
        if arduboy.pressed(DOWN) {
            playery += 1;
        }
        if arduboy.just_pressed(A) {
            if arduboy.audio_enabled() {
                arduboy.audio_off()
            } else {
                arduboy.audio_on()
            }
        }
        arduboy.clear();
        arduboy.set_cursor((WIDTH as i16 / 2) - (text1.len() as i16 * FONT_SIZE as i16 / 2), 10);
        arduboy.print(get_string_addr!(text1));
        sprites::draw_override(playerx, playery, get_sprite_addr!(player_sprite1), 0);
        arduboy.display();
    }