Issue #2: Merge chat code into main game server, add nickname storage.

Also visually reorganized the database EER diagram to make it nicer.

chat.php

@@ -0,0 +1,71 @@
+<?php
+
+/*
+ * Coordinate decimal places to earth resolution
+  decimal
+  places   degrees          distance
+  -------  -------          --------
+  0        1                111  km
+  1        0.1              11.1 km
+  2        0.01             1.11 km
+  3        0.001            111  m
+  4        0.0001           11.1 m
+  5        0.00001          1.11 m
+  6        0.000001         11.1 cm
+  7        0.0000001        1.11 cm
+  8        0.00000001       1.11 mm
+ */
+
+require 'required.php';
+require 'onlyloggedin.php';
+
+use AnthonyMartin\GeoLocation\GeoLocation as GeoLocation;
+
+if (!preg_match('/-?[0-9]{1,3}\.[0-9]{2,}/', $VARS['lat'])) {
+    sendError("Latitude (lat) is in the wrong format.", true);
+}
+if (!preg_match('/-?[0-9]{1,3}\.[0-9]{2,}/', $VARS['long'])) {
+    sendError("Longitude (long) is in the wrong format.", true);
+}
+
+if (GET) {
+    // Get messages
+    if (is_empty($VARS['lat']) || is_empty($VARS['long'])) {
+        sendError("Missing information.", true);
+    }
+
+    $radius = 50;
+    if (!is_empty($VARS['radius']) && is_numeric($VARS['radius'])) {
+        $radius = intval($VARS['radius']);
+    }
+
+    $userlocation = GeoLocation::fromDegrees($VARS['lat'], $VARS['long']);
+    $searchbounds = $userlocation->boundingCoordinates($radius, 'miles');
+
+    //echo $searchbounds[0]->getLatitudeInDegrees();
+    //echo $searchbounds[0]->getLongitudeInDegrees();
+    //echo $searchbounds[1]->getLatitudeInDegrees();
+    //echo $searchbounds[1]->getLongitudeInDegrees();
+
+    $msgs = $database->select('messages', ["[>]players" => ["uuid" => "uuid"]], ['messages.uuid', 'messages.message', 'messages.time', 'players.nickname'], ['AND' => [
+            'lat[>]' => $searchbounds[0]->getLatitudeInDegrees(),
+            'lat[<]' => $searchbounds[1]->getLatitudeInDegrees(),
+            'long[>]' => $searchbounds[0]->getLongitudeInDegrees(),
+            'long[<]' => $searchbounds[1]->getLongitudeInDegrees()],
+        "ORDER" => "messages.time DESC",
+        "LIMIT" => 30
+    ]);
+
+    echo json_encode($msgs);
+} else {
+    // Post message
+    if (is_empty($VARS['lat']) || is_empty($VARS['long']) || is_empty($VARS['msg'])) {
+        sendError("Missing information.", true);
+    }
+    
+    $msg = strip_tags($VARS['msg']);
+
+    $database->insert('messages', ['#time' => 'NOW()', 'uuid' => $_SESSION['uuid'], 'message' => $msg, 'lat' => $VARS['lat'], 'long' => $VARS['long']]);
+
+    sendOK();
+}

login.php

@@ -10,8 +10,12 @@ if (is_empty($VARS['pass'])) {
     sendError("Missing password.", true);
 }
 
+/* Insert code to check login here, it should return "OK" or an error string */
+/* ------------------------------- */
+
 $logininfo = file_get_contents("https://sso.netsyms.com/api/simplehashauth.php?get=1&user=" . urlencode($VARS['user']) . "&pass=" . hash('sha1', $VARS['pass']));
 
+/* ------------------------------- */
 if ($logininfo != "OK") {
     sendError(str_replace("Error: ", "", $logininfo), true);
 }
@@ -20,14 +24,12 @@ $guid = file_get_contents("https://sso.netsyms.com/api/getguid.php?user=" . urle
 
 if (is_empty($guid)) {
     sendError("Account does not exist.", true);
-} else {
-    
 }
 
 if ($database->has('players', ['uuid' => $guid])) {
     sendOK();
 } else {
-    $database->insert('players', ['uuid' => $guid, 'level' => 1.0, 'energy' => 100, 'maxenergy' => 100, '#lastping' => 'NOW()']);
+    $database->insert('players', ['uuid' => $guid, 'level' => 1.0, 'energy' => 100, 'maxenergy' => 100, '#lastping' => 'NOW()', 'nickname' => $VARS['user']]);
     sendOK("Successfully synced Netsyms account to TerranQuest.");
     ini_set("sendmail_from", "sso@netsyms.com");
 

pinglogin.php

@@ -15,7 +15,7 @@ if (is_empty($guid)) {
 if ($database->has('players', ['uuid' => $guid])) {
     sendOK();
 } else {
-    $database->insert('players', ['uuid' => $guid, 'level' => 1.0, 'energy' => 100, 'maxenergy' => 100, '#lastping' => 'NOW()']);
+    $database->insert('players', ['uuid' => $guid, 'level' => 1.0, 'energy' => 100, 'maxenergy' => 100, '#lastping' => 'NOW()', 'nickname' => $VARS['user']]);
     sendOK("Successfully synced Netsyms account to TerranQuest.");
     ini_set("sendmail_from", "sso@netsyms.com");