first commit

src/main/java/de/winniepat/citrus/managers/ZoomManager.java

@@ -0,0 +1,14 @@
+package de.winniepat.citrus.managers;
+
+public class ZoomManager {
+    private static boolean zooming = false;
+    private static double zoomMultiplier = 4.0;
+
+    public static void setZooming(boolean value) { zooming = value; }
+    public static boolean isZooming() { return zooming; }
+    public static double getZoomMultiplier() { return zoomMultiplier; }
+
+    public static void changeZoom(double amount) {
+        zoomMultiplier = Math.max(1.0, Math.min(40.0, zoomMultiplier + amount));
+    }
+}