Adds an ASCII banner (not ascii art)

src/main/java/dev/zontreck/ariaslib/terminal/Banners.java

@@ -0,0 +1,47 @@
+package dev.zontreck.ariaslib.terminal;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Banners
+{
+
+    public static String generateBanner(String text) {
+        int maxLength = calculateMaxLength(text);
+        List<String> bannerLines = new ArrayList<>();
+        StringBuilder border = new StringBuilder();
+        for (int i = 0; i < maxLength + 4; i++) {
+            border.append("*");
+        }
+        bannerLines.add(border.toString());
+        bannerLines.add("* " + centerText(text, maxLength) + " *");
+        bannerLines.add(border.toString());
+        return String.join("\n", bannerLines);
+    }
+
+    private static String centerText(String text, int maxLength) {
+        StringBuilder centeredText = new StringBuilder();
+        int spacesToAdd = (maxLength - text.length()) / 2;
+        for (int i = 0; i < spacesToAdd; i++) {
+            centeredText.append(" ");
+        }
+        centeredText.append(text);
+        for (int i = 0; i < spacesToAdd; i++) {
+            centeredText.append(" ");
+        }
+        if (centeredText.length() < maxLength) {
+            centeredText.append(" ");
+        }
+        return centeredText.toString();
+    }
+
+    private static int calculateMaxLength(String text) {
+        int maxLength = 0;
+        for (String line : text.split("\n")) {
+            if (line.length() > maxLength) {
+                maxLength = line.length();
+            }
+        }
+        return maxLength;
+    }
+}