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First, include a mutations.xml in your mod that defines a new mutation.
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<?xml version="1.0" encoding="utf-8" ?>
<mutations>
<category Name="Physical">
<mutation Name="Udder" Cost="1" MaxSelected="1" Class="FreeholdTutorial_Udder" Exclusions="" Code="ea"></mutation>
</category>
</mutations> |
Then add a new .cs file in your mod that implements the class. Here's a skeletal implementation of the entry above. It must be in the XRL.World.Parts.Mutation namespace and must ultimately descend from BaseMutation. (Though not necessarily directly, if you have a very complex mod)
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using System;
using System.Collections.Generic;
using System.Text;
using XRL.Rules;
using XRL.Messages;
using ConsoleLib.Console;
namespace XRL.World.Parts.Mutation
{
[Serializable]
class FreeholdTutorial_Udder : BaseMutation
{
public FreeholdTutorial_Udder()
{
Name = "FreeholdTutorial_Udder";
DisplayName = "Udder";
}
public override void Register(GameObject Object)
{
}
public override string GetDescription()
{
return "";
}
public override string GetLevelText(int Level)
{
string Ret = "You have udders.\n";
return Ret;
}
public override bool BeforeRender(Event E)
{
if (ParentObject.IsPlayer())
{
if (ParentObject.pPhysics != null && ParentObject.pPhysics.CurrentCell != null)
{
ParentObject.pPhysics.CurrentCell.ParentZone.AddLight(ParentObject.pPhysics.CurrentCell.X, ParentObject.pPhysics.CurrentCell.Y, Level, LightLevel.Darkvision);
}
}
return true;
}
public override bool FireEvent(Event E)
{
return base.FireEvent(E);
}
public override bool ChangeLevel(int NewLevel)
{
return true;
}
public override bool Mutate(GameObject GO, int Level)
{
return true;
}
public override bool Unmutate(GameObject GO)
{
return true;
}
}
}
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Here's a full example of the Flaming Hands mutation from the game's source code.
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using System;
using System.Collections.Generic;
using XRL.UI;
using ConsoleLib.Console;
namespace XRL.World.Parts.Mutation
{
[Serializable]
class FlamingHands : BaseMutation
{
public FlamingHands()
{
Name = "FlamingHands";
DisplayName = "Flaming Hands";
}
public Guid FlamingHandsActivatedAbilityID = Guid.Empty;
public ActivatedAbilityEntry FlamingHandsActivatedAbility = null;
public override void Register(GameObject Object)
{
Object.RegisterPartEvent(this, "BeginEquip");
Object.RegisterPartEvent(this, "CommandFlamingHands");
Object.RegisterPartEvent(this, "AIGetOffensiveMutationList");
}
public override string GetDescription()
{
return "You emit jets of flame from your hands.";
}
public override string GetLevelText(int Level)
{
string Ret = "Emits a 9-square ray of flame in the direction of your choice\n";
Ret += "Cooldown: 10 rounds\n";
Ret += "Damage: " + Level + "d6\n";
Ret += "Cannot wear gloves";
return Ret;
}
public void Flame(Cell C, ScreenBuffer Buffer)
{
string Damage = Level + "d6";
Body pBody = ParentObject.GetPart("Body") as Body;
int nHandCount = pBody.GetPart("Hands").Count-1;
if (nHandCount > 0) Damage += "+" + nHandCount.ToString();
if (C != null)
{
List<GameObject> Objects = C.GetObjectsInCell();
foreach (GameObject GO in Objects)
{
if( GO.PhasedMatches( ParentObject ) )
{
GO.FireEvent(Event.New("TemperatureChange", "Amount", 310 + (30 * Level), "Owner", ParentObject));
for (int x = 0; x < 5; x++) GO.ParticleText("&r" + (char)(219 + Rules.Stat.Random(0, 4)), 2.9f, 1);
for (int x = 0; x < 5; x++) GO.ParticleText("&R" + (char)(219 + Rules.Stat.Random(0, 4)), 2.9f, 1);
for (int x = 0; x < 5; x++) GO.ParticleText("&W" + (char)(219 + Rules.Stat.Random(0, 4)), 2.9f, 1);
}
}
foreach (GameObject GO in C.GetObjectsWithPart("Combat"))
{
if( GO.PhasedMatches( ParentObject ) )
{
Damage Dmg = new Damage(Rules.Stat.Roll(Damage));
Dmg.AddAttribute("Fire");
Dmg.AddAttribute("Heat");
Event eTakeDamage = Event.New("TakeDamage");
eTakeDamage.AddParameter("Damage", Dmg);
eTakeDamage.AddParameter("Owner", ParentObject);
eTakeDamage.AddParameter("Attacker", ParentObject);
eTakeDamage.AddParameter("Message", "from %o flames!");
GO.FireEvent(eTakeDamage);
}
}
}
Buffer.Goto(C.X, C.Y);
string sColor = "&C";
int r = Rules.Stat.Random(1, 3);
if (r == 1) sColor = "&R";
if (r == 2) sColor = "&r";
if (r == 3) sColor = "&W";
r = Rules.Stat.Random(1, 3);
if (r == 1) sColor += "^R";
if (r == 2) sColor += "^r";
if (r == 3) sColor += "^W";
if( C.ParentZone == XRL.Core.XRLCore.Core.Game.ZoneManager.ActiveZone )
{
r = Rules.Stat.Random(1, 3);
Buffer.Write(sColor + (char)(219 + Rules.Stat.Random(0, 4)));
Popup._TextConsole.DrawBuffer(Buffer);
System.Threading.Thread.Sleep(10);
}
}
public override bool FireEvent(Event E)
{
if (E.ID == "AIGetOffensiveMutationList")
{
int Distance = (int)E.GetParameter("Distance");
GameObject Target = E.GetParameter("Target") as GameObject;
List<XRL.World.AI.GoalHandlers.AICommandList> CommandList = (List<XRL.World.AI.GoalHandlers.AICommandList>)E.GetParameter("List");
if (FlamingHandsActivatedAbility != null && FlamingHandsActivatedAbility.Cooldown <= 0 && Distance <= 9 && ParentObject.HasLOSTo(Target) ) CommandList.Add(new XRL.World.AI.GoalHandlers.AICommandList("CommandFlamingHands", 1));
return true;
}
if (E.ID == "CommandFlamingHands")
{
ScreenBuffer Buffer = new ScreenBuffer(80, 25);
Core.XRLCore.Core.RenderMapToBuffer(Buffer);
List<Cell> TargetCell = PickLine(9, AllowVis.Any);
if (TargetCell == null) return true;
if (TargetCell.Count <= 0) return true;
if (TargetCell != null)
{
if (TargetCell.Count == 1)
{
if (ParentObject.IsPlayer())
if (UI.Popup.ShowYesNoCancel("Are you sure you want to target yourself?") != DialogResult.Yes)
{
return true;
}
}
if( FlamingHandsActivatedAbility != null ) FlamingHandsActivatedAbility.Cooldown = 110;
ParentObject.FireEvent(Event.New("UseEnergy", "Amount", 1000, "Type", "Physical Mutation"));
for (int x = 0; x < 9 && x < TargetCell.Count; x++)
{
if (TargetCell.Count == 1 || TargetCell[x] != ParentObject.pPhysics.CurrentCell)
Flame(TargetCell[x],Buffer);
foreach( GameObject GO in TargetCell[x].GetObjectsWithPart("Physics") )
{
if (GO.pPhysics.Solid)
{
x = 999;
break;
}
}
}
}
}
if (E.ID == "BeginEquip")
{
GameObject Equipment = E.GetParameter("Object") as GameObject;
string BodyPartName = E.GetParameter("BodyPartName") as string;
if (BodyPartName == "Hands")
{
if (IsPlayer())
{
UI.Popup.Show("Your flaming hands prevents you from equipping " + Equipment.DisplayName + "!");
}
E.bCancelled = true;
return false;
}
}
return true;
}
int OldFlame = -1;
int OldVapor = -1;
public override bool ChangeLevel(int NewLevel)
{
Physics pPhysics = ParentObject.GetPart("Physics") as Physics;
TemperatureOnHit pTemp = FlamesObject.GetPart("TemperatureOnHit") as TemperatureOnHit;
pTemp.Amount = (Level*2) + "d8";
return base.ChangeLevel(NewLevel);
}
public override bool Mutate(GameObject GO, int Level)
{
Unmutate(GO);
ActivatedAbilities pAA = GO.GetPart("ActivatedAbilities") as ActivatedAbilities;
Physics pPhysics = GO.GetPart("Physics") as Physics;
if (pPhysics != null)
{
OldFlame = pPhysics.FlameTemperature;
OldVapor = pPhysics.VaporTemperature;
}
Body pBody = GO.GetPart("Body") as Body;
if (pBody != null)
{
GO.FireEvent(Event.New("CommandForceUnequipObject", "BodyPartName", "Hands"));
FlamesObject = GameObjectFactory.Factory.CreateObject("Ghostly Flames");
Event eCommandEquipObject = Event.New("CommandEquipObject");
eCommandEquipObject.AddParameter("Object", FlamesObject);
eCommandEquipObject.AddParameter("BodyPartName", "Hands");
GO.FireEvent(eCommandEquipObject);
}
FlamingHandsActivatedAbilityID = pAA.AddAbility("Flaming Hands", "CommandFlamingHands", "Physical Mutation");
FlamingHandsActivatedAbility = pAA.AbilityByGuid[FlamingHandsActivatedAbilityID];
return true;
}
public GameObject FlamesObject = null;
public override bool Unmutate(GameObject GO)
{
Physics pPhysics = GO.GetPart("Physics") as Physics;
if (pPhysics != null)
{
if (OldFlame != -1) pPhysics.FlameTemperature = OldFlame;
if (OldVapor != -1) pPhysics.BrittleTemperature = OldVapor;
OldFlame = -1;
OldVapor = -1;
pPhysics.Temperature = 25;
}
Body pBody = GO.GetPart("Body") as Body;
if (pBody != null)
{
BodyPart pMainBody = pBody.GetPartByName("Hands");
if( pMainBody != null )
if (pMainBody.Equipped != null)
{
if (pMainBody.Equipped.Blueprint == "Ghostly Flames")
{
pMainBody.Equipped.FireEvent(Event.New("Unequipped", "UnequippingObject", ParentObject, "BodyPart", pMainBody));
pMainBody.Unequip();
}
}
}
if (FlamingHandsActivatedAbilityID != Guid.Empty)
{
ActivatedAbilities pAA = GO.GetPart("ActivatedAbilities") as ActivatedAbilities;
pAA.RemoveAbility(FlamingHandsActivatedAbilityID);
FlamingHandsActivatedAbilityID = Guid.Empty;
}
return true;
}
}
} |
Your namespace should be XRL.World.Parts.Mutations, the class should be marked serializeable and derived from BaseMutation.
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using System;
using System.Collections.Generic;
using XRL.UI;
using ConsoleLib.Console;
namespace XRL.World.Parts.Mutation
{
[Serializable]
class FlamingHands : BaseMutation
{ |
GetDescription and GetLevelText are called to generate the descriptive for a given level of the mutation.
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public override string GetDescription()
{
return "You emit jets of flame from your hands.";
}
public override string GetLevelText(int Level)
{
string Ret = "Emits a 9-square ray of flame in the direction of your choice\n";
Ret += "Cooldown: 10 rounds\n";
Ret += "Damage: " + Level + "d6\n";
Ret += "Cannot wear gloves";
return Ret;
} |
Change level is called any time the mutation changes level.
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public override bool ChangeLevel(int NewLevel)
{
Physics pPhysics = ParentObject.GetPart("Physics") as Physics;
TemperatureOnHit pTemp = FlamesObject.GetPart("TemperatureOnHit") as TemperatureOnHit;
pTemp.Amount = (Level*2) + "d8";
return base.ChangeLevel(NewLevel);
} |
Mutate and Unmutate are called on an object when it gains or loses the mutation.
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public override bool Mutate(GameObject GO, int Level) public override bool Unmutate(GameObject GO) |
BaseMutation derives from Part, so the typical event registration and handling functions are available
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public override void Register(GameObject Object) public override bool FireEvent(Event E) |
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You can remove mutations by including a tag with just the Name of the mutation you want with a - in front. For example:
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