Attack strength now decreases far away from a location (closes #6)

attackplace.php

@@ -3,11 +3,13 @@
 require 'required.php';
 require 'onlyloggedin.php';
 
+use AnthonyMartin\GeoLocation\GeoLocation as GeoLocation;
+
 if (is_empty($VARS['locationid'])) {
     sendError("No target!", true);
 }
 
-$place = $database->select('locations', ['locationid', 'teamid', 'owneruuid', 'currentlife', 'maxlife'], ['locationid' => $VARS['locationid']])[0];
+$place = $database->select('locations', ['locationid', 'teamid', 'owneruuid', 'currentlife', 'maxlife', 'osmid'], ['locationid' => $VARS['locationid']])[0];
 $user = $database->select('players', ['level', 'teamid', 'energy', 'maxenergy', 'latitude', 'longitude'], ['uuid' => $_SESSION['uuid']])[0];
 
 // This (probably) shouldn't happen in normal play
@@ -27,8 +29,25 @@ if ($type_mod == 0.5) {
 
 $terrain_mod = 1.0;
 $weather_mod = 1.0;
+$distance_mod = 1.0;
 if (!is_empty($VARS['lat']) && !is_empty($VARS['long'])) {
+    try {
+        require_once 'latlong_validate.php';
+        if (!is_empty(DARKSKY_APIKEY)) {
             require 'weather_inc.php';
+            $weather_icon = $currently['icon'];
+            $weather_mod = $WEATHER_GRID[$weather_icon][$user['teamid'] - 1];
+            if ($weather_mod == 0.5) {
+                $weather_mod = .9;
+            } else if ($weather_mod == 2) {
+                $weather_mod = 1.1;
+            }
+        }
+    } catch (Exception $e) {
+        $weather_mod = 1.0;
+    }
+
+    try {
         $terrain = json_decode(file_get_contents("http://gis.terranquest.net/terrain.php?key=" . GIS_API_KEY . "&lat=" . $VARS['lat'] . "&long=" . $VARS['long']), TRUE);
         if ($terrain['status'] == 'OK') {
             $terraintype = $terrain['type'];
@@ -41,16 +60,26 @@ if (!is_empty($VARS['lat']) && !is_empty($VARS['long'])) {
                 $terrain_mod = 1.3;
             }
         }
-    $weather_icon = $currently['icon'];
-    $weather_mod = $WEATHER_GRID[$weather_icon][$user['teamid'] - 1];
-    if ($weather_mod == 0.5) {
-            $weather_mod = .9;
-        } else if ($weather_mod == 2) {
-            $weather_mod = 1.1;
+    } catch (Exception $e) {
+        $terrain_mod = 1.0;
+    }
+
+    try {
+        // Round to 2 digits (approx. 1.11 meters/3.6 feet)
+        $lat = number_format((float) $VARS['lat'], 5, '.', '');
+        $long = number_format((float) $VARS['long'], 5, '.', '');
+        $placedata = json_decode(file_get_contents("http://gis.terranquest.net/place.php?key=" . GIS_API_KEY . "&osmid=" . $place['osmid']), true);
+        $placelong = $placedata['features'][0]['geometry']['coordinates'][0];
+        $placelat = $placedata['features'][0]['geometry']['coordinates'][1];
+        $playerlocation = GeoLocation::fromDegrees($lat, $long);
+        $placelocation = GeoLocation::fromDegrees($placelat, $placelong);
+        $distance_mod = DISTANCE_GRID($playerlocation->distanceTo($placelocation, 'miles'));
+    } catch (Exception $e) {
+        $distance_mod = 1.0;
     }
 }
 
-$damage = pow(floor($user['level']), 0.5) * 4 * $type_mod * $terrain_mod * $weather_mod;
+$damage = pow(floor($user['level']), 0.5) * 4 * $type_mod * $terrain_mod * $weather_mod * $distance_mod;
 //$damage = 2 * $userdrain * $TYPE_GRID[$user['teamid']][$place['teamid']];
 // Check if action possible
 if ($user['energy'] < $userdrain) {

type_grid.php

@@ -46,3 +46,25 @@ $WEATHER_GRID = [
     "wind" => [1, 1, 1, 2, 1, 1],
     "fog" => [1, 1, 1, 1, 1, 1]
 ];
+
+/**
+ * Get a multiplier for the distance between the player and place.
+ * @param float $d the number of miles between
+ * @return float The damage multiplier
+ */
+function DISTANCE_GRID($d) {
+    $distance = floor($d * 100.0);
+    if ($distance <= 5) { // ~250 feet
+        return 1;
+    } else if ($distance <= 10) { // ~500 feet
+        return 0.95;
+    } else if ($distance <= 20) { // ~1000 feet
+        return 0.8;
+    } else if ($distance <= 50) { // ~2500 feet
+        return 0.6;
+    } else if ($distance <= 100) { // 1 mile (5280 feet)
+        return 0.4;
+    } else { // Greater than 1 mile
+        return 0.2;
+    }
+}

weather_inc.php

@@ -5,7 +5,7 @@
  * Get the contents of the current weather with $currently
  */
 
-require 'latlong_validate.php';
+require_once 'latlong_validate.php';
 
 // Round to 2 digits (approx. 1.1km)
 $lat = number_format((float) $VARS['lat'], 2, '.', '');