I have this projectile script where it shoots out fast and it should fall slowly.
local function startProjectile(object, kickZone)
local bullet = object
local position1 = bullet.Position
local position2 = workspace.PeakPoint.Position + Vector3.new(0, 0, math.random(-workspace.PeakPoint.Size.X/2, workspace.PeakPoint.Size.X/2))
bullet.Position = position1
local direction = position1 - position2
local force = direction + Vector3.new(0, workspace.Gravity / 2, 0)
--bullet:SetNetworkOwner(nil)
bullet:ApplyImpulse(force * bullet.AssemblyMass)
--game.Debris:AddItem(bullet, 5)
end
You could change the mass of the part after you detect when the bullet’s yAxis value is decreasing. Or you could increase workspace.Gravity (ideally you’d do the first option but do whatever suits you better).
I def think that the first idea is better than the second as workspace.Gravity affects all objects not just the part.
I really want to make the bullet or object only go in 2 axis which is X and Y and not the Zs because I want to achieve the 2D effect on my game.
this is the first solution yet it has a physics bug; when it falls down, it goes crazy from left and right.
local function startProjectile(object, kickZone)
if not object then return end
local bullet = object
local position1 = bullet.Position
local position2 = workspace.PeakPoint.Position + Vector3.new(0, 0, math.random(-workspace.PeakPoint.Size.X/2, workspace.PeakPoint.Size.X/2))
bullet.Position = position1
local direction = position1 - position2
local force = direction + Vector3.new(0, workspace.Gravity / 2, 0)
--bullet:SetNetworkOwner(nil)
bullet:ApplyImpulse(force * bullet.AssemblyMass)
--game.Debris:AddItem(bullet, 5)
end
local conns
ThrowPamato.OnServerEvent:Connect(function(Sender)
local Character = Sender.Character
local Humanoid = Character:FindFirstChildWhichIsA("Humanoid")
if not Humanoid then return end
local kickZone = Character:FindFirstChild("kickZone")
if not kickZone then return end
local newPamato = ServerStorage:WaitForChild("Pamato"):Clone()
newPamato.Parent = workspace
Instance.new("Attachment", newPamato)
newPamato.CollisionGroup = CG_Pamato
for i, part in pairs(Character:GetDescendants()) do
if part:IsA("BasePart") and part.Name ~= "kickZone" then
part.CollisionGroup = CG_Player
end
end
local VF = Instance.new("VectorForce", newPamato)
VF.Attachment0 = newPamato:FindFirstChild("Attachment")
VF.ApplyAtCenterOfMass = true
--VF.Force = Vector3.new(0, newPamato:GetMass() * (workspace.Gravity / 0.25), 0)
newPamato.Position = kickZone.Position
newPamato.CustomPhysicalProperties = PhysicalProperties.new(0.5, 0.5, 1, 0.3, 1)
--local Welder = Instance.new("Weld", newPamato)
--Welder.Part0 = newPamato
--Welder.Part1 = kickZone
conns = newPamato.Touched:Connect(function(hit)
local e = task.spawn(function()
while newPamato do
if newPamato.AssemblyLinearVelocity.Y >= 0 then
VF.Force = Vector3.new(0, 0, 0)
else
VF.Force = Vector3.new(0, newPamato:GetMass() * (workspace.Gravity / 0.6), 0)
end
task.wait()
end
end)
if hit.Name == "Floor" then
--newPamato:Destroy()
conns:Disconnect()
task.cancel(e)
end
end)
startProjectile(newPamato, kickZone)
end)
Maybe you could spawn a thread (task.spawn) after the bullet is shot. You could make it wait a bit then gradually decrease the AssemblyLinearVelocity to your desired preferences.
How can I achieve the gradually decreasing? tbh, I really don’t know what I should change in my script as this is my first time handling physics in Roblox.
This is what I did:
local conns
local function startProjectile(object, kickZone)
if not object then return end
local bullet = object
local position1 = bullet.Position
local position2 = workspace.PeakPoint.Position + Vector3.new(0, 0, math.random(-workspace.PeakPoint.Size.X/2, workspace.PeakPoint.Size.X/2))
bullet.Position = position1
local direction = position1 - position2
local force = direction + Vector3.new(0, workspace.Gravity / 2, 0)
local VF = Instance.new("VectorForce", bullet)
VF.Attachment0 = bullet:FindFirstChild("Attachment")
VF.ApplyAtCenterOfMass = true
conns = bullet.Touched:Connect(function(hit)
local e = task.spawn(function()
while bullet do
if bullet.AssemblyLinearVelocity.Y >= 0 then
VF.Force = Vector3.new(0, 0, 0)
else
VF.Force = Vector3.new(0, bullet:GetMass() * (workspace.Gravity / 0.6), 0)
end
task.wait()
end
end)
if hit.Name == "Floor" then
--newPamato:Destroy()
conns:Disconnect()
task.cancel(e)
end
end)
bullet:ApplyImpulse(force * bullet.AssemblyMass)
end
Though it works, still I want to achieve the 2-axis direction only of the trajectory of the bullet.
in this video, you can see the slow falling of the bullets
-- Pretend like this is the code that is fired when the bullet is shot
task.spawn(function()
task.wait(whatever)
while task.wait(0.1) do
bullet.AssemblyLinearVelocity -= 5
-- Something like this
end
end)
To be honest, I’m not that good at math or anything that involves physics (real life and Roblox). I don’t really work with VectorForces and Roblox “physics objects” often either. This is just really what I think would work, if it doesn’t, I could take another look.
local function startProjectile(object : Part, kickZone)
if not object then return end
local bullet = object
local position1 = bullet.Position
local xOffset = math.random(-workspace.PeakPoint.Size.X/2, workspace.PeakPoint.Size.X/2)
local position2 = Vector3.new(position1.X + xOffset, position1.Y, position1.Z)
bullet.Position = position1
local direction = position1 - position2
local force = direction + Vector3.new(0, workspace.Gravity / 2, 0)
local Att = Instance.new("Attachment")
Att.Parent = bullet
Att.WorldPosition = bullet.AssemblyCenterOfMass
local LV = Instance.new("LinearVelocity", bullet)
LV.Attachment0 = Att
LV.VelocityConstraintMode = Enum.VelocityConstraintMode.Line
LV.MaxForce = math.huge
LV.LineDirection = Vector3.new(1, 1, 0)
bullet:ApplyImpulse(force * bullet.AssemblyMass)
