help!?!?, this is descriptive enough, read inside -_-

I will be extraordinarily happy if someone answers why this won't create a circular design

where it says -----------y pos---------, change the line above it, you should know all the variables and it goes into starterplayerscripts

function clamp(min,max,val)
	return math.max(min,math.min(max,val))
end

local snap = 0.01 --defines the grid size(in studs)

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
mouse.TargetFilter = workspace.workingspace
local inv = player:WaitForChild('Inv')
local invgui = game.ReplicatedStorage.guistuff.Inventory:Clone()
invgui.Parent = player
local invloc = invgui.Parent

local isplacing = Instance.new('BoolValue',player)
isplacing.Name = 'placing'
isplacing.Value = false

local label = invgui.ImageButton

local buttonconnections = {}

function connectPlacing(v)
	if v:IsA('GuiButton') then
		local con
		con = v.MouseButton1Down:connect(function()
			if isplacing.Value == false and inv:FindFirstChild(v.Name).Value > 0 then
				isplacing.Value = true
				if player.PlayerGui:FindFirstChild('Inventory') then
					player.PlayerGui.Inventory.Parent = player
				end
				local hitboxes = {}
				for i, v in pairs(workspace.workingspace:GetChildren()) do
					if v.ClassName == 'Model' then
						local hitbox = Instance.new('SelectionBox',v.HitBox)
						hitbox.Color3 = Color3.new(17,255,0)
						hitbox.Adornee = v.HitBox
						table.insert(hitboxes,hitbox)
					end
				end
				local model = game.ReplicatedStorage.localitems:FindFirstChild(v.Name)
				if model then
					local nm = model:Clone()
					nm.Parent = workspace.workingspace
					for i, v in pairs(nm:GetChildren()) do
						if v:IsA('BasePart') and v.Name ~= 'HitBox' then
							v.Transparency = 0.25
							v.CanCollide = false
						elseif v.Name == 'HitBox' then
							v.Transparency = 1
							v.CanCollide = false
							local outline = Instance.new('SelectionBox',v)
							outline.Adornee = v
							outline.Color3 = Color3.new(255,255,255)
						end
					end
					local grid = game.ReplicatedStorage.Grid:Clone()
					grid.Parent = workspace.workingspace
					local hbsizey = nm.HitBox.Size.Y
					local mp = mouse.Hit.p
					local placepos = Vector3.new(clamp(-256,256,math.floor(mp.X/snap)*snap),100,hbsizey/2,clamp(-256,256,math.floor(mp.Z/snap)*snap))
					local prevplacepos = placepos
					local cur_angle = 0
					local rotatecon
					rotatecon = game:GetService('UserInputService').InputBegan:connect(function(i,v)
						if i.KeyCode == Enum.KeyCode.R then
							nm:SetPrimaryPartCFrame(nm.HitBox.CFrame * CFrame.Angles(0,math.rad(cur_angle+30),0))
							cur_angle = cur_angle + 30
						end
					end)
					local con
					con = mouse.Button1Down:connect(function()
						local placed = workspace.remotethings.place:InvokeServer(v.Name,placepos,cur_angle) --v.Name,placepos,cur_angle
						if placed == true then
							con:disconnect()
							rotatecon:disconnect()
							isplacing.Value = false
							mouse.TargetFilter = nil
							nm:Destroy()
							grid:Destroy() -- v.Name is the items name so...
							for i, v in pairs(hitboxes) do
								if v then v:Destroy() end
							end
						end
					end)
					repeat wait()
					mp = mouse.Hit.p
					if isplacing.Value then
						prevplacepos = placepos
						placepos = Vector3.new(clamp(-341,-63,math.floor(mp.X/snap)*snap),100,clamp(-170,200,math.floor(mp.Z/snap)*snap))
						grid:SetPrimaryPartCFrame(CFrame.new(placepos.X,100,placepos.Z))     ----------------------------------------changes y pos---------------------------
						nm:SetPrimaryPartCFrame(CFrame.new(placepos) * CFrame.Angles(0,math.rad(cur_angle),0))
					end
					until isplacing.Value == false
				end
			end
		end)
		return con
	else
		return nil
	end
end

local count = 0
for i, v in pairs(inv:GetChildren()) do
	if v.Value > 0 then
		local newlabel = label:Clone()
		newlabel.Parent = invgui.Frame
		newlabel.Position = UDim2.new(math.fmod(count,4)*0.25,0,math.floor(count/4)*0.125,0)
		newlabel.Name = v.Name
		newlabel.Visible = true
		newlabel.Active = true
		newlabel.ItemName.Text = v.Name
		newlabel.ItemCount.Text = v.Value
	end
	
	count = count + 1
	
	v.Changed:connect(function(h)
		local c = #invgui.Frame:GetChildren()
		if not invgui.Frame:FindFirstChild(v.Name) then
			local newlabel = label:Clone()
			newlabel.Parent = invgui.Frame
			newlabel.Position = UDim2.new(math.fmod(c,4)*0.25,0,math.floor(c/4)*0.125,0)
			newlabel.Name = v.Name
			newlabel.Visible = true
			newlabel.Active = true
			newlabel.ItemName.Text = v.Name
			newlabel.ItemCount.Text = v.Value
			
			for i, v in pairs(buttonconnections) do
				v:disconnect()
			end
			
			for a, b in pairs(invgui.Frame:GetChildren()) do
				local con = connectPlacing(b)
				table.insert(buttonconnections,con)
				
				v.Changed:connect(function()
					b.ItemCount.Text = inv:FindFirstChild(b.Name).Value
				end)
			end
		end
	end)
end

for i, v in pairs(invgui.Frame:GetChildren()) do
	local con = connectPlacing(v)
	table.insert(buttonconnections,con)
end

local gui = game.ReplicatedStorage.guistuff.ItemEdit

local remcon,sellcon = nil,nil

mouse.Button2Down:connect(function()
	local t = mouse.Target
	if t and t.Parent then
		if t.Name == 'HitBox' and isplacing.Value == false then
			if player.PlayerGui:FindFirstChild('ItemEdit') then 
				if remcon ~= nil then remcon:disconnect() end
				if sellcon ~= nil then sellcon:disconnect() end
				player.PlayerGui.ItemEdit:Destroy() 
			end
			local newgui = gui:Clone()
			newgui.Parent = player.PlayerGui
			newgui.Frame.Position = UDim2.new(0,mouse.X,0,mouse.Y)
			newgui.Frame:WaitForChild('ItemName').Text = t.Parent.Name
			
			local discon
			discon = mouse.Button1Down:connect(function()
				newgui:WaitForChild('Frame')
				local absx = newgui.AbsoluteSize.X --x size of the screen
				local absy = newgui.AbsoluteSize.Y --y size of the screen
				
				local msx = mouse.X/absx --the UDim2 xscale factor
				local msy = mouse.Y/absy --the UDim2 yscale factor
				
				local fsx = newgui.Frame.Size.X.Scale --the xscale of the frame
				local fpx = newgui.Frame.Position.X.Scale
				local fsy = newgui.Frame.Size.Y.Scale
				local fpy = newgui.Frame.Position.Y.Scale
				
				--just some variables to make the code less cluttered
				local fx = fpx + fsx
				local fy = fpy + fsy 
				
				if msx < fpx or msx > fx or msy < fpy or msy > fy then
					discon:disconnect()
					newgui:Destroy() --basically, if the player clicks somewhere not in the buttons, it destroys the gui
				end
				
			end)
			local remcon0
			remcon0 = game:GetService('UserInputService').InputBegan:connect(function(a,b)
				if a.KeyCode == Enum.KeyCode.E then
					remcon0:disconnect()
					newgui.Frame:FindFirstChild('Remove').Text = 'Removing...'
					local name = t.Parent.Name
					local success = workspace.remotethings.removeitem:InvokeServer(t.Parent)
					repeat wait() until success or success == -1
					newgui:Destroy()					
				elseif a.KeyCode == Enum.KeyCode.T then
					newgui.Frame:FindFirstChild('Sell').Text = 'Selling...'
					remcon0:disconnect()
					local name = t.Parent.Name
					local success = workspace.remotethings.sellitem:InvokeServer(t.Parent)
					repeat wait() until success or success == -1
					newgui:Destroy()					
				end
				
			end)

			remcon = newgui.Frame:WaitForChild('Remove').MouseButton1Down:connect(function()
				newgui.Frame:FindFirstChild('Remove').Text = 'Removing...'
				local name = t.Parent.Name
				local success = workspace.remotethings.removeitem:InvokeServer(t.Parent)
				repeat wait() until success or success == -1
				newgui:Destroy()	
			end)
			
			sellcon = newgui.Frame:WaitForChild('Sell').MouseButton1Down:connect(function()
				newgui.Frame:FindFirstChild('Sell').Text = 'Selling...'
				local name = t.Parent.Name
				local success = workspace.remotethings.sellitem:InvokeServer(t.Parent)
				repeat wait() until success or success == -1
				newgui:Destroy()
			end)
			
		end
	end
end)

game:GetService('UserInputService').InputBegan:connect(function(i,v)
	if i.KeyCode == Enum.KeyCode.F and isplacing.Value == false and not player.PlayerGui:FindFirstChild('Inventory') then
		if not player.PlayerGui:FindFirstChild('Shop') then
			local new = game.ReplicatedStorage.guistuff.Shop:Clone()
			new.Parent = player.PlayerGui
			new.ImageButton:Destroy()
		else
			player.PlayerGui.Shop:Destroy()
		end
	elseif i.KeyCode == Enum.KeyCode.G and isplacing.Value == false and not player.PlayerGui:FindFirstChild('Shop') then
		if not player.PlayerGui:FindFirstChild('Inventory') then
			invgui.Parent = player.PlayerGui
		else
			invgui.Parent = invloc
		end
	end
end)

--[[the box that appears when you hover your mouse over a placed item]]--
local box
while wait() do
	if box then box:Destroy() end
	local t = mouse.Target
	if t then
		if t.Name == 'HitBox'  and isplacing.Value == false then
			box = Instance.new('SelectionBox',t)
			box.Adornee = t
			box.Color3 = Color3.new(0,255,0)
		end
	end
end

thanks, but litterally 99.9999% of the people who see this won't help at all, i don't even think BlueTaslem can fix this, just any pro, i need help

this is what I want you guys to do, if you can make the snap to grid place within a circle, it'd be great, here is what you should change

placepos = Vector3.new(clamp(-341,-63,math.floor(mp.X/snap)*snap),100,clamp(-170,200,math.floor(mp.Z/snap)*snap))