Need help with scripting dragging for a building tool

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#21

If you want the part to maintain it’s original orientation, you need to add the angles of it to your new CFrame.

local angle = Part.CFrame - Part.Position
while Dragging do -- don't need to compare to true, this is checks if it's true by default.
	wait()
	if ObjBeingDragged ~= nil and Mouse.Target ~= nil and Mouse.Target ~= ObjBeingDragged then
		Part.Anchored = true
		ObjBeingDragged.CanCollide = false
		Part.CFrame = angle + Vector3.new(filter(Mouse.Hit.X,Increment),Mouse.Hit.Y + (Part.Size.Y/2),filter(Mouse.Hit.Z,Increment))
	end
end

I you want to be able to rotate it, just change the CFrame line to add a rotation and then add 90 degress (or degrees of your choice) every time the player presses R. You can do the same thing for tilting by adding to X or Z.;

local CAS = game:GetService'ContextActionService' -- probably most efficient if this line is in the outermost scope at the top of the script.
local angle = Part.CFrame - Part.Position
local rotation = Vector3.new(0, 0, 0)
local rotate = function()
    rotation = rotation + Vector3.new(0, -90, 0) -- negative is clockwise, positive is counterclockwise
end
CAS :BindAction('Rotate Action', rotate, true, Enum.KeyCode.R) -- true means there will be a mobile button added for this too, which will automatically work the same as pressing R while moving a part.
while Dragging do
	wait()
	if ObjBeingDragged ~= nil and Mouse.Target ~= nil and Mouse.Target ~= ObjBeingDragged then
		Part.Anchored = true
		ObjBeingDragged.CanCollide = false
		Part.CFrame = (angle + Vector3.new(filter(Mouse.Hit.X,Increment),Mouse.Hit.Y + (Part.Size.Y/2),filter(Mouse.Hit.Z,Increment))) * CFrame.Angles(math.rad(rotation.X), math.rad(rotation.Y), math.rad(rotation.Z)) -- if you add tilt to the rotation function, this cframe line will already work for your needs.
	end
end
CAS :UnbindAction('Rotate Action')
#22

As for placing on “walls”, you can use Mouse.TargetSurface to see what side of the part that the mouse.Hit is touching.

You will then need to add the relative x or z difference in studs from the center of the part (width/2) that you are moving from the current mouse.Hit, relative to the part your mouse is on. This part is a little complicated, and I thought I saw that the link I sent before also showed snapping to walls? Is that what you want?

I think he makes the bottom face of the part snap to the wall, you can edit that part to use the face that is facing the wall.

#23

for the rotation, i have to hold down the R key, meaning that i cannot rotate more than once, and when i place down the part, it just resets back to its original orientation. And i also can’t seem to get the surface detector thingy to work.

#24

Forgot to mention this, but by maintaining the orientation, i meant keep the orientation to right angles on the objects that i place onto, so they can also join onto surfaces. And i just realized that i cannot put parts onto slightly moved, or rotated objects, which will not allow the part to join surfaces, and line up with the object that the part is on