How to restrict CFrame along X & Z Axis?

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#1

I’m working on a flight system that I ideally wish to have restrictions:-
I.e. When the Player is turning Left / Right, I want the ship to tilt on the X axis by a maximum of 45 Degrees on either side and when the Player is turning upwards or downwards, I want the ship to turn a maximum of 85 Degrees either side.

Currently I use the code shown below to determine the CFrame required however, it’s proven to be extremely.

			local rot = CFrame.fromEulerAnglesXYZ(0,0,0)
			BodyGyro.CFrame = (rot*(BodyGyro.CFrame-BodyGyro.CFrame.p)) + BodyGyro.CFrame.p

			local x,y,z = BodyGyro.CFrame:ToOrientation()
			BodyGyro.CFrame = CFrame.fromOrientation(math.rad(tiltAngleDiv), math.rad(TurnAngle), math.rad(turnAngleDiv))

			if PilotSeat.Throttle == 1 then
				if TiltIncline < 85 then
					TiltIncline += 2
				end
			elseif PilotSeat.Throttle == -1 then
				if TiltIncline > -85 then
					TiltIncline -= 2
				end
			end

			if PilotSeat.Steer == 1 then
				TurnAngle -= 2
				if Incline > -24 then
					Incline -= 2
				end
				
			elseif PilotSeat.Steer == -1 then
				TurnAngle += 2
				if Incline < 24 then
					Incline += 2
				end
				
			elseif PilotSeat.Steer == 0 then
				if Incline > 0 then
					Incline -= 2
				elseif Incline < 0 then
					Incline += 0.5
				end
			end

			turnAngleDiv = Incline / turnInclineAngle
			tiltAngleDiv = TiltIncline / tiltInclineAngle

When the Player enters Hyperspace - This code is ran the keep the variables the same when entering Hyperspace in whichever direction. However, it results in extreme shaking - Is there a more efficient way I can do this?

TiltIncline = Main.PrimaryPart.Orientation.X
tiltAngleDiv = TiltIncline / tiltInclineAngle
				
Incline = Main.PrimaryPart.Orientation.Z
turnAngleDiv = Incline / turnInclineAngle
				
TurnAngle = Main.PrimaryPart.Orientation.Y

Shaking is vague but noticeable if you look at the edge(s) of the Baseplate.

#2

EDIT
So far, I can limit the jittering movement by rounding the X & Z axis to the nearest (Even) Number; however, this is proving to be impractical also as when the Player leaves Hyperspace - The ship realligns to match the new axis - I’m looking to keep it smooth.

#3

Not sure which angles you mean, make sure to proper the proper right hand rule for talking about rotations along an axis

Do you mean rolling in order to produce a plane turning motion? If so according to roblox Axises, this rolling motion is rotating around the Z axis of the orientation.

image

As seen with an attachment in a dummys head at (0,0,0) base orientation.

Rotating around the X axis leads to pitch axis, or “look up” “look down” movement.

Rotating around the Z axis leads to roll axis movement, or “Head tilt left”, “head tilt right” motion.

Perhaps you modeled the PrimaryPart of your spaceship with a rotated base?

image
image1010×348 60.6 KB

Anyhow, for restricting a CFrame my main method is to convert it to orientation and clamp it then reconvert it to orientation again like you have done.

Summary 
--Using CFrame.lookAt method with mouse
	local goalCFrame = CFrame.lookAt(vehicleSeat.CFrame.Position,mouseHit)
	
	local x, y, z = goalCFrame:ToOrientation()
	local newX = math.clamp(math.deg(x),-10, 10)
	newX = math.rad(newX)
	
	local newGoalCFrame = CFrame.fromOrientation(newX,y,z)

However if you are doing a modifying numbers technique Instead of if statements I would just add it then clamp it.

--Do the +- accorrding to key bind
TiltIncline += 2
TiltIncline -= 2
--Then clamp it, saves a lot of space vs if statements
TiltIncline = math.clamp (TiltIncline , -85, 85)

For the shaking problem, not sure. It seems like you got 2 BodyGyro CFrames?

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