How to implement a new alien class?

countbasie

<div class="IPBDescription">Noob trying to mod</div>Hey,

I want to add a new alien class. Basically just to have another model for the skulk. I know how to implement the model, but I can only apply it to the original skulk.
I want a lua file called like 'skulk1' and a console command to choose it in cheats mode. So that I can have an original skulk and the other skulk standing next to it. Any ideas?

I tried changing
<!--c1--><div class='codetop'>CODE</div><div class='codemain'><!--ec1-->class 'Skulk' (Alien)


Skulk.kMapName = "skulk"<!--c2--></div><!--ec2-->
to
<!--c1--><div class='codetop'>CODE</div><div class='codemain'><!--ec1-->class 'Skulk1' (Alien)


Skulk.kMapName = "skulk1"<!--c2--></div><!--ec2-->
But it doesn't work - is there a file that defines all classes that are in the game?

Soul_Rider

I have loads of invented classes in various mods....

If you want to have a different skulk model, you just change the model in the skulk file to the name of the new model.

If you want to create a new alien based off the skulk, then copy the file, and rename it entirely to skulk1.

For example, just fixing what you have done above:

<!--c1--><div class='codetop'>CODE</div><div class='codemain'><!--ec1-->class 'Skulk1' (Alien)

Skulk1.kMapName = "skulk1"

Skulk1.kModelName = PrecacheAsset("models/alien/skulk/skulk1.model")
local kViewModelName = PrecacheAsset("models/alien/skulk/skulk1_view.model")
local kSkulkAnimationGraph = PrecacheAsset("models/alien/skulk/skulk1.animation_graph")

if Server then
    Script.Load("lua/Skulk1_Server.lua", true)
elseif Client then
    Script.Load("lua/Skulk1_Client.lua", true)
end


Skulk1.kAirAcceleration = 40

function Skulk1:OnCreate()<!--c2--></div><!--ec2-->

Gives you an idea of what you'll be editing etc. I've deleted a lot of line here, as this is just to demonstrate...

Then you need to go into TechData.lua and add the Tech data for the new skulk, goto to TechTree Constants, to add the skulk1, also you need to go to the alien team and add skulk1 there, and so on throughout the neccesary files..

If you want to do it this way it is a lot of work, or you could just point the skulk at a different model for the simple fix.

As a special bonus here is one of my customised aliens, although It isn't an alien, because I have changed the base class as well.... It is a Gorge created for v2 of GorgeCraft. Note this is not an alien anymore, it is a Fort1. (Yes I have designed new Teams and Player Classes for GorgeCraft v2, as well as new game modes.)

Here is a code box incorporating the code, so you can get an idea of what you would need to do to create a new skulk. This is still a vanilla Gorge in code at teh moment, yet to amend it though..

<div class='codetop'>CODE</div><div class='codemain' style='height:200px;white-space:pre;overflow:auto'>
// ======= Copyright © 2003-2011, Unknown Worlds Entertainment, Inc. All rights reserved. =======
//
// lua\FortsGorge.lua
//
// Created by: Andy Wilson for GorgeCraft (soulrider@modbeans.com)
//
// ========= For more information, visit us at <a href="http://www.unknownworlds.com" target="_blank">http://www.unknownworlds.com</a> =====================

Script.Load("lua/Utility.lua")
Script.Load("lua/Fort1.lua")
Script.Load("lua/Weapons/Alien/SpitSpray.lua")
Script.Load("lua/Weapons/Alien/InfestationAbility.lua")
Script.Load("lua/Weapons/Alien/DropStructureAbility.lua")
Script.Load("lua/Weapons/Alien/DropStructureAbility2.lua")
Script.Load("lua/Weapons/Alien/DropStructureAbility3.lua")
Script.Load("lua/Weapons/Alien/WebStalk.lua")
Script.Load("lua/Weapons/Alien/BileBomb.lua")
Script.Load("lua/Weapons/Alien/Absorb.lua")
Script.Load("lua/Mixins/BaseMoveMixin.lua")
Script.Load("lua/Mixins/GroundMoveMixin.lua")
Script.Load("lua/Mixins/CameraHolderMixin.lua")
Script.Load("lua/DissolveMixin.lua")

class 'FortsGorge' (Fort1)

if Server then
Script.Load("lua/FortsGorge_Server.lua")
end

local networkVars =
{
bellyYaw = "private float",
timeSlideEnd = "private time",
startedSliding = "private boolean",
sliding = "boolean"
}

AddMixinNetworkVars(BaseMoveMixin, networkVars)
AddMixinNetworkVars(GroundMoveMixin, networkVars)
AddMixinNetworkVars(CameraHolderMixin, networkVars)
AddMixinNetworkVars(DissolveMixin, networkVars)

FortsGorge.kMapName = "fortsgorge"

FortsGorge.kModelName = PrecacheAsset("models/alien/gorge/gorge.model")
local kViewModelName = PrecacheAsset("models/alien/gorge/gorge_view.model")
local kGorgeAnimationGraph = PrecacheAsset("models/alien/gorge/gorge.animation_graph")

FortsGorge.kSlideLoopSound = PrecacheAsset("sound/NS2.fev/alien/gorge/slide_loop")
FortsGorge.kBuildSoundInterval = .5
FortsGorge.kBuildSoundName = PrecacheAsset("sound/NS2.fev/alien/gorge/build")

FortsGorge.kXZExtents = 0.5
FortsGorge.kYExtents = 0.475

local kMass = 80
local kJumpHeight = 2.4
local kInfestationStartSlideForce = 7.5
local kStartSlideForce = 7
local kViewOffsetHeight = 0.6
local kMaxGroundSpeed = 9
local kMaxSlidingSpeed = 17
local kSlidingMoveInputScalar = 0.1
local kBuildingModeMovementScalar = 0.001
local kSlideCoolDown = 0.5

FortsGorge.kAirZMoveWeight = 2.5
FortsGorge.kAirStrafeWeight = 2.5
FortsGorge.kAirBrakeWeight = 0.1

local kGorgeBellyYaw = "belly_yaw"
local kGorgeLeanSpeed = 2

function FortsGorge:OnCreate()

InitMixin(self, BaseMoveMixin, { kGravity = Player.kGravity })
InitMixin(self, GroundMoveMixin)
InitMixin(self, CameraHolderMixin, { kFov = kGorgeFov })

Fort1.OnCreate(self)

InitMixin(self, DissolveMixin)

self.bellyYaw = 0
self.timeSlideEnd = 0
self.startedSliding = false
self.sliding = false
self.verticalVelocity = 0

end

function FortsGorge:OnInitialized()

Fort1.OnInitialized(self)

self:SetModel(FortsGorge.kModelName, kGorgeAnimationGraph)

if Server then

self.slideLoopSound = Server.CreateEntity(SoundEffect.kMapName)
self.slideLoopSound:SetAsset(FortsGorge.kSlideLoopSound)
self.slideLoopSound:SetParent(self)

else

self:AddHelpWidget("GUIGorgeHealHelp", 2)
self:AddHelpWidget("GUIGorgeBellySlideHelp", 2)

end

end

function FortsGorge:GetInfestationBonus()
return kGorgeInfestationSpeedBonus
end

function FortsGorge:GetCeleritySpeedModifier()
return kGorgeCeleritySpeedModifier
end

function FortsGorge:GetCarapaceSpeedReduction()
return kGorgeCarapaceSpeedReduction
end

if Client then

local kGorgeHealthbarOffset = Vector(0, 0.7, 0)
function Gorge:GetHealthbarOffset()
return kGorgeHealthbarOffset
end

function FortsGorge:OverrideInput(input)

local activeWeapon = self:GetActiveWeapon()
if activeWeapon and (activeWeapon:isa("DropStructureAbility") or activeWeapon:isa("DropStructureAbility2")or activeWeapon:isa("DropStructureAbility3")) then
input = activeWeapon:OverrideInput(input)
end

Player.OverrideInput(self, input)

end

end

function FortsGorge:GetBaseArmor()
return kGorgeArmor
end

function FortsGorge:GetArmorFullyUpgradedAmount()
return kGorgeArmorFullyUpgradedAmount
end

function FortsGorge:GetMaxViewOffsetHeight()
return kViewOffsetHeight
end

function FortsGorge:GetCrouchShrinkAmount()
return 0
end

function FortsGorge:GetExtentsCrouchShrinkAmount()
return 0
end

function FortsGorge:GetViewModelName()
return kViewModelName
end

function FortsGorge:GetJumpHeight()
return kJumpHeight
end

function FortsGorge:GetIsBellySliding()
return self.sliding
end

function FortsGorge:HandleJump(input, velocity)

if not self:GetIsBellySliding() then
return Fort1.HandleJump(self, input, velocity)
end

return false

end

local function GetIsSlidingDesired(self, input)

if bit.band(input.commands, Move.MovementModifier) == 0 then
return false
end

if self.crouching then
return false
end

if self:GetVelocity():GetLengthXZ() < 3 then

if self:GetIsBellySliding() then
return false
end

else

local zAxis = self:GetViewCoords().zAxis
zAxis.y = 0
zAxis:Normalize()

if GetNormalizedVectorXZ(self:GetVelocity()):DotProduct( zAxis ) < 0.2 then
return false
end

end

return true

end

// Handle transitions between starting-sliding, sliding, and ending-sliding
local function UpdateGorgeSliding(self, input)

PROFILE("FortsGorge:UpdateGorgeSliding")

local slidingDesired = GetIsSlidingDesired(self, input)
if slidingDesired and not self.sliding and self.timeSlideEnd + kSlideCoolDown < Shared.GetTime() and self:GetIsOnGround() and self:GetEnergy() >= kBellySlideCost then

self.sliding = true
self.startedSliding = true

if Server then
if not GetHasSilenceUpgrade(self) then
self.slideLoopSound:Start()
end
end

self:DeductAbilityEnergy(kBellySlideCost)

end

if not slidingDesired and self.sliding then

self.sliding = false

if Server then
self.slideLoopSound:Stop()
end

self.timeSlideEnd = Shared.GetTime()

end

// Have Gorge lean into turns depending on input. He leans more at higher rates of speed.
if self:GetIsBellySliding() then

local desiredBellyYaw = 2 * (-input.move.x / kSlidingMoveInputScalar) * (self:GetVelocity():GetLength() / self:GetMaxSpeed())
self.bellyYaw = Slerp(self.bellyYaw, desiredBellyYaw, input.time * kGorgeLeanSpeed)

end

end

function FortsGorge:GetCanRepairOverride(target)
return true
end

function FortsGorge:HandleButtons(input)

PROFILE("FortsGorge:HandleButtons")

Fort1.HandleButtons(self, input)

UpdateGorgeSliding(self, input)

end

function FortsGorge:OnUpdatePoseParameters(viewModel)

PROFILE("FortsGorge:OnUpdatePoseParameters")

Fort1.OnUpdatePoseParameters(self, viewModel)

self:SetPoseParam(kGorgeBellyYaw, self.bellyYaw * 45)

end

function FortsGorge:ConstrainMoveVelocity(moveVelocity)

Fort1.ConstrainMoveVelocity(self, moveVelocity)

if self:GetIsBellySliding() then
moveVelocity:Scale(0)
end

end

function FortsGorge:GetGroundFrictionForce()

if self:GetIsBellySliding() then
return ConditionalValue(self:GetGameEffectMask(kGameEffect.OnInfestation), 0.1, 0.3)
end

return Fort1.GetGroundFrictionForce(self)
end

function FortsGorge:SetCrouchState(newCrouchState)
self.crouching = newCrouchState
end

function FortsGorge:GetMaxSpeed(possible)

if possible then
return kMaxGroundSpeed
end

return kMaxGroundSpeed * self:GetMovementSpeedModifier()

end

function FortsGorge:GetMass()
return kMass
end

function FortsGorge:OnUpdateAnimationInput(modelMixin)

PROFILE("FortsGorge:OnUpdateAnimationInput")

Fort1.OnUpdateAnimationInput(self, modelMixin)

if self:GetIsBellySliding() then
modelMixin:SetAnimationInput("move", "belly")
end

end

function FortsGorge:GetAirMoveScalar()
return 0
end

function FortsGorge:GetCanCloakOverride()
return not self:GetIsBellySliding()
end

FortsGorge.kSlideControl = 1

function FortsGorge:ModifyVelocity(input, velocity)

Fort1.ModifyVelocity(self, input, velocity)

if not self:GetIsOnGround() and input.move:GetLength() ~= 0 or self:GetIsBellySliding() then

local moveLengthXZ = velocity:GetLengthXZ()
local previousY = velocity.y
local adjustedZ = false
local bellySliding = self:GetIsBellySliding()

if input.move.z ~= 0 then

local redirectedVelocityZ = GetNormalizedVectorXZ(self:GetViewCoords().zAxis) * input.move.z

if input.move.z < 0 then

redirectedVelocityZ = GetNormalizedVectorXZ(velocity)
redirectedVelocityZ:Normalize()

local xzVelocity = Vector(velocity)
xzVelocity.y = 0

VectorCopy(velocity - (xzVelocity * input.time * FortsGorge.kAirBrakeWeight), velocity)

else

redirectedVelocityZ = redirectedVelocityZ * input.time * ConditionalValue(bellySliding, FortsGorge.kSlideControl, FortsGorge.kAirZMoveWeight) + GetNormalizedVectorXZ(velocity)
redirectedVelocityZ:Normalize()
redirectedVelocityZ:Scale(moveLengthXZ)
redirectedVelocityZ.y = previousY
VectorCopy(redirectedVelocityZ, velocity)
adjustedZ = true

end

end

if input.move.x ~= 0 then

local redirectedVelocityX = GetNormalizedVectorXZ(self:GetViewCoords().xAxis) * input.move.x

if adjustedZ then
redirectedVelocityX = redirectedVelocityX * input.time * ConditionalValue(bellySliding, FortsGorge.kSlideControl, FortsGorge.kAirStrafeWeight) + GetNormalizedVectorXZ(velocity)
else
redirectedVelocityX = redirectedVelocityX * input.time * ConditionalValue(bellySliding, FortsGorge.kSlideControl, 2) + GetNormalizedVectorXZ(velocity)
end

redirectedVelocityX:Normalize()
redirectedVelocityX:Scale(moveLengthXZ)
redirectedVelocityX.y = previousY
VectorCopy(redirectedVelocityX, velocity)

end

end

// Give a little push forward to make sliding useful
if self.startedSliding then

if self:GetIsOnGround() then

local pushDirection = GetNormalizedVectorXZ(self:GetViewCoords().zAxis)
local force = ConditionalValue(self:GetGameEffectMask(kGameEffect.OnInfestation), kInfestationStartSlideForce, kStartSlideForce) * self:GetSlowSpeedModifier()

local impulse = pushDirection * force

velocity.x = velocity.x * 0.7 + impulse.x
velocity.y = velocity.y * 0.7 + impulse.y
velocity.z = velocity.z * 0.7 + impulse.z

end

self.startedSliding = false

end

end

function FortsGorge:GetPitchSmoothRate()
return 1
end

function FortsGorge:GetPitchRollRate()
return 3
end

local kMaxSlideRoll = math.rad(20)

function FortsGorge:GetDesiredAngles()

local desiredAngles = Alien.GetDesiredAngles(self)

if self:GetIsBellySliding() then
desiredAngles.pitch = - self.verticalVelocity / 10
desiredAngles.roll = GetNormalizedVectorXZ(self:GetVelocity()):DotProduct(self:GetViewCoords().xAxis) * kMaxSlideRoll
end

return desiredAngles

end

function FortsGorge:PreUpdateMove(input, runningPrediction)

self.prevY = self:GetOrigin().y

end

function FortsGorge:PostUpdateMove(input, runningPrediction)

if self:GetIsBellySliding() and self:GetIsOnGround() then

local velocity = self:GetVelocity()

local yTravel = self:GetOrigin().y - self.prevY
local xzSpeed = velocity:GetLengthXZ()

xzSpeed = xzSpeed + yTravel * -4

if xzSpeed < kMaxSlidingSpeed or yTravel > 0 then

local directionXZ = GetNormalizedVectorXZ(velocity)
directionXZ:Scale(xzSpeed)

velocity.x = directionXZ.x
velocity.z = directionXZ.z

self:SetVelocity(velocity)

end

self.verticalVelocity = yTravel / input.time

end

end

if Client then

function FortsGorge:OnProcessMove(input)

Fort1.OnProcessMove(self, input)

self.currentTechId = nil
self.ghostStructureCoords = nil
self.ghostStructureValid = false
self.showGhostModel = false

local weapon = self:GetActiveWeapon()

if weapon and (weapon:isa("DropStructureAbility") or weapon:isa("DropStructureAbility2") or weapon:isa("DropStructureAbility3")) then

self.currentTechId = weapon:GetActiveStructure():GetDropStructureId()
self.ghostStructureCoords = weapon:GetGhostModelCoords()
self.ghostStructureValid = weapon:GetIsPlacementValid()
self.showGhostModel = weapon:GetShowGhostModel()

end

end

function FortsGorge:GetShowGhostModel()
return self.showGhostModel
end

function FortsGorge:GetGhostModelTechId()
return self.currentTechId
end

function FortsGorge:GetGhostModelCoords()
return self.ghostStructureCoords
end

function FortsGorge:GetIsPlacementValid()
return self.ghostStructureValid
end

end

function FortsGorge:GetCanAttack()
return Fort1.GetCanAttack(self) and not self:GetIsBellySliding()
end

Shared.LinkClassToMap("FortsGorge", FortsGorge.kMapName, networkVars)</div>

Jibrail

I just want to ask were you able to import the model into the game successfully? I am having a hard time making my model work.

countbasie

Soul_Rider:

Thanks a lot mate! I'll check it out.

Jibrail:

I didn't apply a new model yet, I just checked if I can replace the Skulk model with the Lerk one. That works pretty well, of course. (Just replace the paths in here
<!--c1--><div class='codetop'>CODE</div><div class='codemain'><!--ec1-->Skulk.kModelName = PrecacheAsset("models/alien/skulk/skulk.model")
local kViewModelName = PrecacheAsset("models/alien/skulk/skulk_view.model")
local kSkulkAnimationGraph = PrecacheAsset("models/alien/skulk/skulk.animation_graph")<!--c2--></div><!--ec2-->
Since I'm completely new to modding I will try to get an own model in it sometime, but not now :D