So i’ve been wondering on how i could use vectorforce to mimic jump physics. Not requesting an alternative for vectorforce, I just want to know how to code it so it can mimic jumping
this is what i have so far but its not that good.
Any help is appreciated
jump_force.Force = total_force*character_mass
jump_force.Force = Vector3.zero
maybe jump_force and character_mass isnt a variable. try sending the full script if you didnt already?
local skateboard = params[3]
---------------- Animations -----------------------
playing_animation = true
local sk_idle = default_anims["Skateboard Idle"]
local sk_left = default_anims["Skateboard Left"]
local sk_right = default_anims["Skateboard Right"]
local sk_fall = default_anims["Skateboard Fall"]
local sk_ring = default_anims["Skateboard Ring"]
sk_idle:Play()
sk_left:Play()
sk_right:Play()
sk_fall:Play()
sk_ring:Play()
---------------- Math Operations ----------------------
local clamp = math.clamp
local cframe_new = CFrame.new
local cframe_angles = CFrame.Angles
local math_abs = math.abs
---------------- Variables --------------------------------------
local character_mass = 0
local interactive_objects = {map}
local raycastParams = RaycastParams.new()
local leg_length = humanoid.HipHeight
local loop_function
local jump_function
local current_velocity = Vector3.zero
local jumping = false
---------------- Initialize ---------------------------------------
character_mass = root.AssemblyMass
for i, v in pairs(map:GetDescendants()) do
if v:IsA("BasePart") then
if v.CanCollide == true then
table.insert(interactive_objects,v)
end
end
end
raycastParams.FilterDescendantsInstances = interactive_objects
raycastParams.FilterType = Enum.RaycastFilterType.Include
raycastParams.IgnoreWater = true
---------------- Movers ----------------------------------------
local force_point = Instance.new("Attachment",root)
force_point.Name = "SkateboardForcePoint"
local lift_force = Instance.new("VectorForce",force_point)
lift_force.Name = "LiftForce"
lift_force.Attachment0 = force_point
lift_force.ApplyAtCenterOfMass = true
lift_force.RelativeTo = Enum.ActuatorRelativeTo.World
lift_force.Force = Vector3.zero
local jump_force = Instance.new("VectorForce",force_point)
jump_force.Name = "JumpForce"
jump_force.Attachment0 = force_point
jump_force.ApplyAtCenterOfMass = true
jump_force.RelativeTo = Enum.ActuatorRelativeTo.World
jump_force.Force = Vector3.zero
---------------- Humanoid/Character Options ---------------------
humanoid.PlatformStand = true
rotation_settings = {MaxTorque = 0}
---------------- Apply Forces -----------------------------------
local function apply_forces(delta)
current_velocity = root.AssemblyLinearVelocity
----------- Lift Force --------------------------------------
local ground = workspace:Shapecast(root,root.CFrame.UpVector*-(leg_length),raycastParams)
if ground then
local g_force = Vector3.new(0,workspace.Gravity,0)
local f_force = Vector3.new(0,-current_velocity.Y,0)*(1/delta)
local d_force = Vector3.new(0,leg_length-ground.Distance,0)*(1/delta)
local total_force = g_force+f_force+d_force
lift_force.Force = total_force*character_mass
else
lift_force.Force = Vector3.zero
end
end
loop_function = update.Heartbeat:Connect(apply_forces)
jump_function = humanoid:GetPropertyChangedSignal("Jump"):Connect(function()
local ground = workspace:Shapecast(root,root.CFrame.UpVector*-(leg_length+0.5),raycastParams)
if ground and jumping == false then
local frame_time = task.wait()
local j_force = Vector3.new(0,math.sqrt(2*workspace.Gravity*5),0)*(1/0.1)
local total_force = j_force
jump_force.Force = total_force*character_mass
lift_force.Enabled = false
task.wait(0.1)
jump_force.Force = Vector3.zero
lift_force.Enabled = true
end
end)
This is for a skateboard script, the character mass is accurate and jump_force works, its just not jumping the same height as if i were to use humanoid jump
i changed the jump code at the bottom, 5 is meant to be the jump height
did you do an Instance.new() or did you just place it on the skateboard directly?
I’m not sure why that matters, but yes I did use instant.new as u can see in the code
Great! since you can delete the instance when its about a secend.
and try experimenting this.
if its too strong. then reduce it. if its too weak. then increase it
im trying to mathematically make an equation to mimic jump physics using impulse time, jump height and force. even if i were to do that, that seems really crude and could cause problems
great idea but i think it will probbably take time. same for mine
You should use velocity control instead of forces for a jump.
Also, generally, should also use applyimpulse instead of using a force for a very short amount of time (which can be inconsistent).
I would recommend creating a LinearVelocity for about 0.1 seconds on the client, which will override the CharacterController’s ground sticking force.