haxe warnings since it doesnt work with 4.3.0

update/Update.hx

@@ -1,5 +1,6 @@
 import haxe.Json;
 import sys.io.File;
+import sys.io.Process;
 import sys.FileSystem;
 
 class Update {
@@ -26,11 +27,37 @@ class Update {
                     prettyPrint('Cannot resolve library of type "${lib.type}"');
             }
         }
+
+		var proc = new Process('haxe --version');
+		proc.exitCode(true);
+		var haxeVer = proc.stdout.readLine();
+		if (haxeVer != "4.2.5") {
+			// check for outdated haxe
+			var curHaxeVer = [for(v in haxeVer.split(".")) Std.parseInt(v)];
+			var requiredHaxeVer = [4, 2, 5];
+			for(i in 0...requiredHaxeVer.length) {
+				if (curHaxeVer[i] < requiredHaxeVer[i]) {
+					prettyPrint("!! WARNING !!");
+					Sys.println("Your current Haxe version is outdated.");
+					Sys.println('You\'re using ${haxeVer}, while the required version is 4.2.5.');
+					Sys.println('The engine may not compile with your current version of Haxe.');
+					Sys.println('We recommend upgrading to 4.2.5');
+					break;
+				} else if (curHaxeVer[i] > requiredHaxeVer[i]) {
+					prettyPrint("!! WARNING !!"
+					+ "\nHaxeFlixel has incompability issues with the latest version of Haxe, 4.3.0 and above, due to macros."
+					+ "\nProceeding will cause compilation issues related to macros (ex: cannot access flash package in macro)");
+					Sys.println('');
+					Sys.println('We recommend downgrading back to 4.2.5.');
+					break;
+				}
+			}
+		}
     }
 
     public static function prettyPrint(text:String) {
         var header = "══════";
-        for(i in 0...text.length)
+        for(i in 0...(text.length-(text.lastIndexOf("\n")+1)))
             header += "═";
         Sys.println("");
         Sys.println('╔$header╗');