Implementation of LeachHealth Descriptor

[Invader_Zim]

This is mainly for Lord Ruthven, but this will be a short tutorial on how to implement this descriptor.

Step 1. On your enemy object, add <LeachHealth/> to its XML.

Step 2. In file 'Descriptors.cs', make a public bool variable named 'LeachHealth', preferably under the other object descriptions. Then in the class 'ObjectDesc', write to your variable using your XML tag.

public bool LeachHealth { get; private set; }

LeachHealth = elem.Element("LeachHealth") != null;

Step 3. In file 'Player.cs', find 'public void Damage', and add this code underneath the reduction of player HP. We do this just because it's after the damage calculations.

                if (chr.ObjectDesc.LeachHealth)
                {
                    Enemy enemy = chr as Enemy;

                    if (enemy.HP > 0 && enemy.HP < chr.ObjectDesc.MaxHP)
                    {
                        enemy.HP += dmg;

                        chr.Owner.BroadcastPacket(new ShowEffectPacket
                        {
                            EffectType = EffectType.Potion,
                            TargetId = chr.Id,
                            Color = new ARGB(0xffffffff)
                        }, null);
                        chr.Owner.BroadcastPacket(new NotificationPacket
                        {
                            ObjectId = chr.Id,
                            Text = "{\"key\":\"blank\",\"tokens\":{\"data\":\"+" + dmg + "\"}}",
                            Color = new ARGB(0xff00ff00)
                        }, null);
                    }
                }

Then you're done. Now your Lord Ruthven will heal itself from damaging players. You could take this a step further by making the tag a projectile descriptor, which should be self explanatory.