Help with building system

Help and Feedback Scripting Support
#1

I’m trying to make a building system similar to Bedwars’ one. The thing is, I don’t know how to make it that when you hover over the void the block would be placed right at the edge
(example video since im bad at explaining things) :

How would I go about doing this?

Thanks,
RGF

#2

Use Mouse.TargetFilter to make a preview block. Set the preview block(s) transparency and collision to false. Use selection boxes.

#3

I already have, I’m just trying to learn how to have it that when your mouse is hovering over the void it behaves like it did in the video

1 Like
#4

So I just hopped into a bedwars game and I noticed something, you can only place void blocks at the current y level that you are at, it also has a max distance of 3 blocks i think, so with this into account all you have to do is simply:

local valid_blocks = {}
for _, v in pairs(Folder With All Blocks On It) do
 if --[[ do a check where if the blocks are at the players y level,
 and if player is within the distance of the block]] then
 table.insert(valid_blocks, v)
  
end
end

local all_distances = {}
for _, v in pairs(valid_blocks) do
 local mousehit = mouse.Hit.Position
 local distance = (mousehit - v.Position).Magnitude
 table.insert(all_distances, distance)
end

-- Sort Them and find the closest one then position how you want to
#5

Doesn’t work. Tried multiple methods

#6

How about this? I’m too lazy to make it actually set the position after but you can get the idea. if you place a couple premade blocks down you can see this work.

THIS IS VERY JANKY!!! MEANT FOR DEMONSTATION

Requirments:

  • A 4x4 anchored part transparency set to 1 in Replicated Storage
  • Remote Function Called ‘PlaceBlockFunction’ in Replicated Storage
    -The Following Local Script 
repeat wait() until game.Players.LocalPlayer.Character
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

local rs = game:GetService('ReplicatedStorage')
local uis = game:GetService("UserInputService")
local runs = game:GetService('RunService')

local block = rs:WaitForChild('Block'):Clone()
local pbfunc = rs:WaitForChild('PlaceBlockFunction')
block.Parent = workspace
block.CanCollide = false
mouse.TargetFilter = block

local selectbox = Instance.new('SelectionBox', player.PlayerGui)
selectbox.Adornee = block

local function customround(number, roundto) return math.round(number / roundto) * roundto end

runs.RenderStepped:Connect(function()
	local pos = mouse.Hit.Position
	local lock = 4
	
	if mouse.Target then
		block.Position = Vector3.new(customround(pos.X, lock), customround(pos.Y, lock), customround(pos.Z, lock))
	else -- Void Stuff Here Below is what I was talking about and it works
		local closest
		local vector = pos - workspace.CurrentCamera.CFrame.Position
		local direction = vector.Unit
		local distance = vector.Magnitude
		if distance > 20 then distance = 20 end
		local final = workspace.CurrentCamera.CFrame.Position + direction * distance
		block.Position = final

		for _, v in pairs(workspace.PlacedBlocks:GetChildren()) do
			
			if closest == nil then
				closest = v
			else
				if (final - v.Position).Magnitude < (final - closest.Position).Magnitude then
					closest = v
				end
			end
		end
		block.Position = closest.Position
	end
	
end)

mouse.Button1Down:Connect(function()
	local clonedBlock = pbfunc:InvokeServer(block.CFrame)
end)
  • The Following Script 
local rs = game:GetService('ReplicatedStorage')

local block = rs:WaitForChild('Block')
local pbfunc = rs:WaitForChild('PlaceBlockFunction')

local function createWall(player, cf)
  local new = block:Clone()
  new.Transparency = 0
  new.Parent = workspace.PlacedBlocks
  new.CFrame = cf
  return new
end

pbfunc.OnServerInvoke = createWall

Hope This Helps!