How to make your own simfphys vehicle

Did you ever request a vehicle to a simfphys creator, hoping that the creator would make it for you? Are you tired of waiting months for it? Do you want to make your own conversions? If the answer is yes, then this is the perfect guide for you!

Basic information

This tutorial is meant for this addon
https://steamcommunity.com/sharedfiles/filedetails/?id=771487490
The directory were you are supposed to start is:
...\steamapps\common\GarrysMod\garrysmod\addons
For a tutorial on how to get there by video, click here

You can use notepad to follow this tutorial, but it's recommended to use Notepad++ or Sublime Text.

Convertion

Here you will create new folders and a file that contains a basic script.

Creating Folders

• Create a new folder wearing whatever name you desire. In this example, I will use the name "my_first_simfphys_car"
  
• In the folder that you created, you create another folder called "lua".
  Important note: All letters should be lowercase!
  
• Enter the "lua" folder that you created and create a new folder called "autorun".
  Again, All letters lowercase.
  
• Go in the last folder that you created.

My path looks like this right now:
...\steamapps\common\GarrysMod\garrysmod\addons\my_first_simfphys_car\lua\autorun

Creating The File

• Create a txt file called as you prefer, in my example that would be "my_first_simfphys_car".
  
• Change the file extention from .txt to .lua. The name of the file should look like this right now: "my_first_simfphys_car.lua". This option is turned off by default, and if it is turned off, make sure to have it turned on.
  
• Open the file, copy and paste what's in the category called Conversion: File content and paste its content in your .lua file.

Changing Model In The File

In order to follow the next steps, you're supposed to start in-game
• Go to your Spawn Menu
  
• Click Browse
  
• Open Addons
  
• Select the addon of the model you would like to use
  
• Right-Click on the thumbnail of the model and press Copy to clipboard
  
• Open your .lua file and replace "models/buggy.mdl" with whatever model you will use

This simfphys vehicle is immediately accessible in-game when starting a new game. In case you're reading this while being in-game, you're supposed to restart your game in order to access it.

Convertion: File content

 
AddCSLuaFile()

local light_table = {
ModernLights = false, -- Modern or Old lights? True or false

R_HeadLampPos = Vector(0,0,0), -- the location of the headlights (Right - R)
R_HeadLampAng = Angle(180,-90,0), -- the angle of the headlights

L_HeadLampPos = Vector(0,0,0), -- the location of the headlights (Left - L)
L_HeadLampAng = Angle(180,-90,0), -- the angle of the headlights

R_RearLampPos = Vector(0,0,0), -- the location of the rear lights
R_RearLampAng = Angle(0,-90,0), -- the angle of the rear lights

L_RearLampPos = Vector(0,0,0), -- the location of the rear lights
L_RearLampAng = Angle(0,-90,0), -- the angle of the rear lights


	Headlight_sprites = {
		{pos = Vector(0,0,0), size = 100, material = "sprites/light_ignorez",color = Color(255,255,255,255)},
	},
	Headlamp_sprites = {
	},
	FogLight_sprites = {
	},
	Rearlight_sprites = {
	},
	Brakelight_sprites = {
	},
	Reverselight_sprites = {
	},
	Turnsignal_sprites = {
		Right = {
		},
		Left = {
		},
	}
}
list.Set( "simfphys_lights", "template", light_table) -- here you need to change "template", for example you can change it to "myfrstsimfcar"

local V = {
	Name = "Template Vehicle", -- Name of the vehicle in-game
	Model = "models/buggy.mdl", -- Vehicle model (in the tab add-ons and prop auto)
	Category = "Your Category", -- category of the vehicle

	Members = {
	Mass = 1700, -- the mass of your vehicle

	LightsTable = "template", -- name of light_table

	AirFriction = -1000,

	FrontWheelRadius = 21, -- how big is your front wheel? (those are physical, not visual)
	RearWheelRadius = 21, -- how big is your rear wheel? (those are physical, not visual)

	CustomMassCenter = Vector(0,0,-6),

	SeatOffset = Vector(-8,0,-6), -- the position of the driver seat
	SeatPitch = 0,

	SpeedoMax = 100, -- The maximum speed on the speedometer

	PassengerSeats = { -- where will the passengers sit?
		{
			pos = Vector(0,0,0),
			ang = Angle(0,0,14)
		},
	},

	ExhaustPositions = { -- where are your exhausts?
		{
			pos = Vector(0,0,0),
			ang = Angle(90,-90,0),
		},
	},

	StrengthenSuspension = false,

	FrontHeight = 10, -- the height of the front suspension
	FrontConstant = 43000, -- if it's higher, the suspension is set higher and will move less
	FrontDamping = 3000, -- if it's higher, the suspension will move less. watch out, don't set too high otherwise your wheels will act weird.
	FrontRelativeDamping = 1700, -- just copy the setting above

	RearHeight = 10, -- the height of the rear suspension
	RearConstant = 43000, -- if it's higher, the suspension is set higher and will move less
	RearDamping = 3000, -- if it's higher, the suspension will move less. watch out, don't set too high otherwise your wheels will act weird.
	RearRelativeDamping = 1700, -- just copy the setting above

	FastSteeringAngle = 10, -- how sharp it will turn until it reaches a paticular speed
	SteeringFadeFastSpeed = 535, -- yeah kinda the paticular speed
	
	TurnSpeed = 6, -- how fast will it turn? higher is faster. default is 8, but in my opinion, 6 is better.

	MaxGrip = 60, -- watch out, otherwise your car will slip or will roll over its head.
	Efficiency = 1, -- how fast you car will accelerate.
	GripOffset = -2, -- negative is for the rear and the positive for the front
	BrakePower = 35, -- If set really high, there's a chance your car will fly over his head

	IdleRPM = 750, -- just let it 720, it doesn't matter anyway
	LimitRPM = 8000, -- this is the limit. you can't go higher than the limit
	Revlimiter = false, -- If true - When the speedometer reaches of the red designation, it does not pass on, if false it is ignored
	PeakTorque = 140, -- how fast your wheels spin
	PowerbandStart = 1500, -- when will you transmit first? if set to 1000, it will transmit for the first time at 2000. just take the half of the powerband end
	PowerbandEnd = 6500, -- this is the red limit.
	Turbocharged = false, -- gives whistle sound and increases horsepower when active
	Supercharged = false, -- gives a miscellaneous sound and increases horsepower when active
	Backfire = false, -- will you car bang bang pew pew out of the exhaust?
	
	FuelFillPos = Vector(-33.61,-45.1,37.7), -- where can you fill your tank?
	FuelType = FUELTYPE_PETROL, -- type of fuel
	FuelTankSize = 80, -- size of fuel tank
	
	PowerBias = 1, -- if positive, it's rear wheel drive, if negative, it's front wheel drive. for example, a ford mustang is rear wheel drive (1) and lamborghini are mostly all wheel drive (0)
	
	EngineSoundPreset = -1,

		snd_pitch = 1, -- how high will it sound?
		snd_idle = "simulated_vehicles/jeep/jeep_idle.wav", -- if you start your vehicle, this is the sound it will make.
	
		snd_low = "simulated_vehicles/jeep/jeep_low.wav", -- if you drive underneath 3000 rpm, this is your engine sound
		snd_low_revdown = "simulated_vehicles/jeep/jeep_revdown.wav", -- if you release your forward button and don't use the brake
		snd_low_pitch = 0.8, -- how high will it sound?
	
		snd_mid = "simulated_vehicles/jeep/jeep_mid.wav", -- this is the first sound you will hear from the moment you start driving
		snd_mid_gearup = "simulated_vehicles/jeep/jeep_second.wav", -- after the first transmission, you will hear this.
		snd_mid_geardown = "simulated_vehicles/jeep/jeep_second.wav", -- you will hear this sounds when you shift down.
		snd_mid_pitch = 0.8, -- how high will it sound?$

		-- if EngineSoundPreset is 0 in-game then

		Sound_Idle = "simulated_vehicles/misc/nanjing_loop.wav", -- if you start your vehicle, this is the sound it will make.
		Sound_IdlePitch = 1,

		Sound_Mid = "simulated_vehicles/misc/m50.wav", -- if your rpm (in percentage) is below "Sound_MidFadeOutRPMpercent", you will hear this sound
		Sound_MidPitch = 0.9, -- how high will it sound?
		Sound_MidVolume = 1, -- how loud will it sound?
		Sound_MidFadeOutRPMpercent = 100, -- when this sound will fade out
		Sound_MidFadeOutRate = 1, --0.25 -- how fast it will fade out

		Sound_High = "simulated_vehicles/misc/v8high2.wav", -- if your rpm (in percentage) is above "Sound_HighFadeInRPMpercent", you will hear this sound
		Sound_HighPitch = 0.8, -- how high will it sound?
		Sound_HighVolume = 1, -- how loud will it sound?
		Sound_HighFadeInRPMpercent = 55, -- when this sound will fade in
		Sound_HighFadeInRate = 0.40, -- how fast it will fade in

		Sound_Throttle = "common/null.wav", -- how higher rpm, how louder it will sound.
		Sound_ThrottlePitch = 0, -- how high will it sound?
		Sound_ThrottleVolume = 0, -- how loud will it sound?
	
		snd_horn = "simulated_vehicles/horn_7.wav", -- if you push the button for the horn
--
	ForceTransmission = 0,
	DifferentialGear = 0.5, -- experiment with it.
	Gears = {-0.1,0,0.12,0.22,0.3,0.4} -- how many gears do you want?
	}
}
if (file.Exists( "models/buggy.mdl", "GAME" )) then -- name of the model (".mdl")
list.Set( "simfphys_vehicles", "sim_fphys_template", V ) -- change to any name (for example - sim_fphys_lalala)
end

End

You are free to repost this guide, however you must credit me as the creator of the guide.

Thank you for reading.

[crinoxium]

also i added you since i have a few questions

[crinoxium]

can you use a model outside of garrysmod? like a port from a different game?

[playmobilbus]

I might have to bring some changes in the guide concerning that part. Thank you for letting me know.

[Wolfe Tone]

UPDATE I FIGURED IT OUT you need to change "sim_fphys_template" change template part to smth unique and it works fine :)

[Wolfe Tone]

Im Having the same issue as gkee2002, any ideas for how to fix this?

[playmobilbus]

Send me a friend request, that way I can get a better idea of your issue and we get to find a solution together.

[gkee2002]

I made an awesome car with this guide, then I tried to make another one and it didn't work. I've been looking all over the internet trying to find a solution to making multiple cars plz help.

[Spy]

How to make a war vehicle(tank)?

[hathunghuan]

Thank's bro , I sent you a friend request

[playmobilbus]

Yes, I can try to help you solve your problem. I need a screenshot the vehicles tab in the spawn menu, and I need your .lua file. Send me a friend request so we can continue helping solving your problem.