How do I make a gravity code

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1

Hello! I’m planning to make a very realistic space simulator, but I’m having difficulties with the physics part, how do I make code about gravity? I would like to use the equation F = G m1.m2/r2 in which depending on the mass of the object or model, the player would be attracted by gravity, the mass could be a variable, and in empty spaces the gravity would be zero, anyway, please help me, thanks

-Foxy

2

Make a script that calculates the gravitational force between the player (or object) and a celestial body based on their masses and distance, applying a force to the player to simulate gravity. Xx

1 Like
3

But how do I do it? Do I use vector3?

4

The Code Here Shows it, but it’s also not the most efficient way to update planet velocities

5

Sure there are many ways to do this.. In a game I’m working on I have an area gravity is normal (a rectangle), other than that it’s space-like.

--LocalScript in StarterPlayerScripts
local rs=game:GetService("RunService")
local player = game.Players.LocalPlayer
local char = player.Character or player.CharacterAdded:Wait()
local root = char:WaitForChild("HumanoidRootPart")
local velocity, grav = Vector3.zero, false

function setGrav(tog)
	if tog then workspace.Gravity = 196
		velocity = Vector3.zero
	end
end

function check()
	local localPos = workspace.Omega.GCube.CFrame:PointToObjectSpace(root.Position)
	local size = workspace.Omega.GCube.Size / 2
	grav = math.abs(localPos.X) <= size.X and
		math.abs(localPos.Y) <= size.Y and
		math.abs(localPos.Z) <= size.Z
	setGrav(grav)
end

while rs.Stepped:Wait() do check()
	if root.AssemblyLinearVelocity.Magnitude > 20 then
		velocity = root.AssemblyLinearVelocity	
	end	if not grav then workspace.Gravity = 0
		root.AssemblyLinearVelocity = velocity
	end
end

This is pretty old, has always worked well. I can see a few spots that could use some refining.