change word colour system

index.php

@@ -6,13 +6,12 @@ header("Cache-Control: no-cache, no-store, must-revalidate");
 
 <?php
 
-function get_color_from_ip($ip) {
+function get_color_from_userdata($data) {
-	$ip_elem = explode(".", $ip);
 	$css = "background-color: hsl(";
-	$number = abs(crc32($ip));
+	$number = abs(crc32($data));
 	$css .= ($number % 360).", ";
 	$css .= (50 + (($number >> 3) % 51))."%, ";
-	$css .= (50 + (($number >> 5) % 51))."%);";
+	$css .= (50 + (($number >> 5) % 31))."%);"; // maximal 80%, es soll nicht einfach weiß sein
 	
 	return $css;
 }
@@ -47,7 +46,8 @@ if (array_key_exists("submitted", $_REQUEST)) {
 	if ($botrequest) {
 		$content .= "background-color: darksalmon; color: white;'>";
 	} else {
-		$content .= get_color_from_ip($_SERVER['REMOTE_ADDR'])."'>";
+		// Farbe hängt ab von Benutzer und ändert sich nach gewisser Zeit.
+		$content .= get_color_from_userdata($_REQUEST["user"].strval(intdiv(time(),60*60*24*7)))."'>";
 	}
 	
 	$ends_of_sentence = ['.', '!', '?'];

style.css

@@ -115,6 +115,7 @@ input, .send_button {
 .word_input_area {
 	border: 2px solid white;
 	display: inline-flex;
+	margin: 30px 0px;
 }
 
 table {