Update #0 - First Release

sources/main/java/net/lax1dude/eaglercraft/v1_8/EagUtils.java

@@ -0,0 +1,73 @@
+package net.lax1dude.eaglercraft.v1_8;
+
+/**
+ * Copyright (c) 2022 LAX1DUDE. All Rights Reserved.
+ * 
+ * WITH THE EXCEPTION OF PATCH FILES, MINIFIED JAVASCRIPT, AND ALL FILES
+ * NORMALLY FOUND IN AN UNMODIFIED MINECRAFT RESOURCE PACK, YOU ARE NOT ALLOWED
+ * TO SHARE, DISTRIBUTE, OR REPURPOSE ANY FILE USED BY OR PRODUCED BY THE
+ * SOFTWARE IN THIS REPOSITORY WITHOUT PRIOR PERMISSION FROM THE PROJECT AUTHOR.
+ * 
+ * NOT FOR COMMERCIAL OR MALICIOUS USE
+ * 
+ * (please read the 'LICENSE' file this repo's root directory for more info) 
+ * 
+ */
+public class EagUtils {
+	
+	private static final String hex = "0123456789ABCDEF";
+	
+	public static String hexString(int value, int digits) {
+		String ret = "";
+		for(int i = 0, l = digits << 2; i < l; i += 4) {
+			ret = hex.charAt((value >> i) & 0xF) + ret;
+		}
+		return ret;
+	}
+	
+	public static int decodeHex(CharSequence num) {
+		int ret = 0;
+		for(int i = 0, l = num.length(); i < l; ++i) {
+			ret = ret << 4;
+			int v = hex.indexOf(num.charAt(i));
+			if(v >= 0) {
+				ret |= v;
+			}
+		}
+		return ret;
+	}
+	
+	public static int decodeHexByte(CharSequence str, int off) {
+		return str.length() < off + 2 ? decodeHex(str.subSequence(off, 2)) : 0;
+	}
+	
+	public static void sleep(long millis) {
+		try {
+			Thread.sleep(millis);
+		}catch(InterruptedException ex) {
+		}
+	}
+	
+	public static String toASCIIEagler(String str) {
+		char[] ascii = new char[str.length()];
+		for(int i = 0; i < ascii.length; ++i) {
+			int c = (int)str.charAt(i);
+			if(c < 32 || c > 126) {
+				ascii[i] = '_';
+			}else {
+				ascii[i] = (char)c;
+			}
+		}
+		return new String(ascii);
+	}
+	
+	public static void validateASCIIEagler(String str) {
+		for(int i = 0, l = str.length(); i < l; ++i) {
+			int c = (int)str.charAt(i);
+			if(c < 32 || c > 126) {
+				throw new IllegalArgumentException("invalid ascii");
+			}
+		}
+	}
+
+}