package net.rustnotmc.client.gui;

import net.minecraft.client.gui.FontRenderer;
import net.minecraft.client.gui.GuiTextField;

/**
 * A text field that shows dots instead of what is in it.
 *
 * The game has no password field, and a password that appears on the screen
 * while it is typed is a password that ends up in a screenshot.
 *
 * The game draws the text field from its own private text, so the only way to
 * mask it without copying the whole field is to put the dots in for the moment
 * it takes to draw and put the real text back afterwards. The cursor ends up
 * at the end of the text, which for a password is where it is wanted anyway.
 */
public class RsxPasswordField extends GuiTextField {

    public RsxPasswordField(int id, FontRenderer font, int x, int y, int width, int height) {
        super(id, font, x, y, width, height);
    }

    @Override
    public void drawTextBox() {
        String real = getText();
        if (real.isEmpty()) {
            super.drawTextBox();
            return;
        }
        StringBuilder dots = new StringBuilder(real.length());
        for (int i = 0; i < real.length(); i++) {
            dots.append('*');
        }
        setText(dots.toString());
        super.drawTextBox();
        setText(real);
    }
}