Chat style

core/src/main/java/mc/core/ChatStyle.java

@@ -0,0 +1,58 @@
+/*
+ * DmitriyMX <dimon550@gmail.com>
+ * 2018-04-30
+ */
+package mc.core;
+
+import java.util.regex.Pattern;
+
+public enum ChatStyle {
+    BLACK     ('0'),
+    DARK_BLUE ('1'),
+    DARK_GREEN('2'),
+    DARK_CYAN ('3'),
+    DARK_RED  ('4'),
+    PURPLE    ('5'),
+    GOLD      ('6'),
+    GRAY      ('7'),
+    DARK_GRAY ('8'),
+    BLUE      ('9'),
+    GREEN     ('a'),
+    CYAN      ('b'),
+    RED       ('c'),
+    PINK      ('d'),
+    YELLOW('e'),
+    WHITE     ('f');
+
+    private static final char COLOR_CHAR = '\u00a7'; // §
+    private static final String codes = "0123456789aAbBcCdDeEfF";
+    private static final Pattern EXCAPE_PATTERN = Pattern.compile(COLOR_CHAR + "[0-9a-f]", Pattern.CASE_INSENSITIVE);
+
+    public static String format(char colorChar, String message) {
+        char[] chars = message.toCharArray();
+        for (int i = 0; i < chars.length; i++) {
+            if (chars[i] == colorChar && codes.indexOf(chars[i+1]) > -1) {
+                chars[i] = COLOR_CHAR;
+                chars[i+1] = Character.toLowerCase(chars[i+1]);
+                i++;
+            }
+        }
+
+        return String.valueOf(chars);
+    }
+
+    public static String escapeStyle(String message) {
+        return EXCAPE_PATTERN.matcher(message).replaceAll("");
+    }
+
+    private char[] toString;
+
+    ChatStyle(char ch) {
+        toString = new char[]{ COLOR_CHAR, ch };
+    }
+
+    @Override
+    public String toString() {
+        return String.valueOf(toString);
+    }
+}