Add max-projectile-speed option

Projectils can load chunks pretty intensively if too fast.

Essentials/src/com/earth2me/essentials/ISettings.java

@@ -335,4 +335,6 @@ public interface ISettings extends IConf {
     boolean logCommandBlockCommands();
 
     Set<Predicate<String>> getNickBlacklist();
+
+    double getMaxProjectileSpeed();
 }

Essentials/src/com/earth2me/essentials/Settings.java

@@ -557,6 +557,7 @@ public class Settings implements net.ess3.api.ISettings {
         isSafeUsermap = _isSafeUsermap();
         logCommandBlockCommands = _logCommandBlockCommands();
         nickBlacklist = _getNickBlacklist();
+        maxProjectileSpeed = _getMaxProjectileSpeed();
     }
 
     void _lateLoadItemSpawnBlacklist() {
@@ -1611,4 +1612,15 @@ public class Settings implements net.ess3.api.ISettings {
     public Set<Predicate<String>> getNickBlacklist() {
         return nickBlacklist;
     }
+
+    private double maxProjectileSpeed;
+
+    private double _getMaxProjectileSpeed() {
+        return config.getDouble("max-projectile-speed", 8);
+    }
+
+    @Override
+    public double getMaxProjectileSpeed() {
+        return maxProjectileSpeed;
+    }
 }

Essentials/src/com/earth2me/essentials/commands/Commandfireball.java

@@ -47,10 +47,11 @@ public class Commandfireball extends EssentialsCommand {
         if (args.length > 1) {
             try {
                 speed = FloatUtil.parseDouble(args[1]);
+                speed = Double.max(0, Double.min(speed, ess.getSettings().getMaxProjectileSpeed()));
             } catch (Exception ignored) {}
         }
 
-        if (args.length > 2 && args[2].equalsIgnoreCase("ride")) {
+        if (args.length > 2 && args[2].equalsIgnoreCase("ride") && user.isAuthorized("essentials.fireball.ride")) {
             ride = true;
         }
 

Essentials/src/config.yml

@@ -614,6 +614,9 @@ sethome-multiple:
 # change the compass' direction to point towards their first home.
 compass-towards-home-perm: false
 
+# Set the maximum speed for projectiles spawned with /fireball.
+max-projectile-speed: 8
+
 ############################################################
 # +------------------------------------------------------+ #
 # |                    EssentialsEco                     | #

Essentials/src/net/ess3/api/ISettings.java

@@ -2,5 +2,4 @@ package net.ess3.api;
 
 
 public interface ISettings extends com.earth2me.essentials.ISettings {
-
 }