crates/menu.h at master · compycore/crates · GitHub

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typedef struct Menu {
    // start menu
    bool selected = false;
    uint8_t currentSelection = 1;
    bool submenu = false;
    uint8_t currentSubmenu = 0;

    bool show() {
        // return if we've already selected "play"
        if (selected) {
            return true;
        }

        // selection movement
        if (!submenu) {
            if (arduboy.justPressed(LEFT_BUTTON)) {
                sound.tone(2093, 10);

                if (currentSelection) {
                    currentSelection--;
                }
            } else if (arduboy.justPressed(RIGHT_BUTTON)) {
                sound.tone(2093, 10);

                if (currentSelection < 3) {
                    currentSelection++;
                }
            }
        }

        // selection with a and b
        if (arduboy.justPressed(B_BUTTON)) {
            sound.tone(2093, 10, 2093, 10);
            if (currentSelection == 1) // play button
            {
                selected = true;
                arduboy.initRandomSeed();
                return true;
            } else if (currentSelection == 3) // configuration menu
            {
                audio.toggle();
                audio.saveOnOff();
            } else {
                currentSubmenu = currentSelection;
                submenu = true;
            }
        } else if (arduboy.justPressed(A_BUTTON)) {
            sound.tone(1046, 10);
            submenu = false;
        }

        // drawing
        if (!submenu) // default menu
        {
            arduboy.drawCompressed(0, 0, MENU, WHITE);

            // selection box
            uint8_t selectionX = currentSelection * 25 + 15;
            arduboy.fillRect(selectionX, 55, 23, 10);
            arduboy.drawRect(selectionX - 1, 54, 25, 11, BLACK);

            // buttons
            sprites.drawPlusMask(16, 56, MENU_INFO, 0);
            sprites.drawPlusMask(41, 56, MENU_PLAY, 0);
            sprites.drawPlusMask(66, 56, MENU_HELP, 0);
            sprites.drawPlusMask(91, 56, MENU_FX, 0);
            sprites.drawPlusMask(106, 56, MENU_FX_NY, audio.enabled());
        } else if (currentSubmenu == 0) // info menu
        {
            arduboy.drawCompressed(32, 0, QRCODE, WHITE);
        } else if (currentSubmenu == 2) // help menu
        {
            arduboy.drawCompressed(0, 0, INSTRUCTIONS, WHITE);
        }

        arduboy.display(CLEAR_BUFFER);
        return false;
    }
} Menu;