feat: day 1 progress

src/main/java/eu/midnightdust/yaytris/ui/SettingsMenu.java

@@ -0,0 +1,38 @@
+package eu.midnightdust.yaytris.ui;
+
+import eu.midnightdust.yaytris.Settings;
+import eu.midnightdust.yaytris.Tetris;
+
+import javax.swing.*;
+import javax.swing.plaf.basic.BasicSliderUI;
+
+import java.awt.*;
+
+import static eu.midnightdust.yaytris.ui.TetrisUI.scale;
+import static eu.midnightdust.yaytris.ui.TetrisUI.setFontScale;
+
+public class SettingsMenu extends JPanel {
+    final TetrisUI ui;
+
+    SettingsMenu(int x, int y, int width, int height, TetrisUI ui) {
+        this.ui = ui;
+        this.setBounds(x, y, width, height);
+        this.setLayout(null);
+
+        JSlider scaleSlider = new JSlider(100, 500, (int) (Settings.guiScale * 100));
+        scaleSlider.setBounds(scale(10), scale(20), scale(200), scale(20));
+        scaleSlider.setBackground(Color.DARK_GRAY);
+        scaleSlider.addChangeListener(change -> {
+            Settings.guiScale = scaleSlider.getValue() / 100f;
+            Settings.write();
+        });
+        setFontScale(scaleSlider);
+        this.add(scaleSlider);
+
+        JButton backButton = new JButton("Back");
+        backButton.addActionListener(ui::openMainMenu);
+        backButton.setBounds(scale(60), scale(140), scale(100), scale(20));
+        setFontScale(backButton);
+        this.add(backButton);
+    }
+}