grid placement help | Roblox Studio Community | Page 1

woeful charm Oct 6, 2024, 7:28 PM

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I want a better grid system As you can see the preview block is sometimes placed inside another block I need a solution for this issue make it very difficult for the preview block to go inside another block

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Notice that the preview block indicates where the mouse block is positioned

cobalt fulcrum Oct 7, 2024, 9:43 AM

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you mean like this ?

woeful charm Oct 7, 2024, 9:45 AM

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no like this wait

woeful charm Oct 7, 2024, 9:46 AM

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cobalt fulcrum you mean like this ?

https://discord.com/channels/448986884497211392/1206591515409776731

cobalt fulcrum Oct 7, 2024, 10:43 AM

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woeful charm https://discord.com/channels/448986884497211392/1206591515409776731

you mean like minecraft build syste ?

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system

woeful charm Oct 7, 2024, 10:45 AM

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cobalt fulcrum you mean like minecraft build syste ?

yeah smt like that

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i mean i already made it

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im just facing some issues

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cobalt fulcrum Oct 7, 2024, 10:49 AM

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woeful charm

sorry to say that but this is bad system

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i made one

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you need Collision system

woeful charm Oct 7, 2024, 10:50 AM

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cobalt fulcrum sorry to say that but this is bad system

its not mine

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i have already collisions

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system

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i need new grid system

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bc this one in the video is not smooth

cobalt fulcrum Oct 7, 2024, 10:51 AM

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There must be a system that determines the location of the mouse on the

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block

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to be built on,

woeful charm Oct 7, 2024, 10:51 AM

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ill continue talking with u after im home alr?

cobalt fulcrum Oct 7, 2024, 10:51 AM

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and then knows in which direction a distance of half the length of the block must be added.

cobalt fulcrum Oct 7, 2024, 10:52 AM

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woeful charm ill continue talking with u after im home alr?

yes we can fix this

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if you want to make it blocks with same axis siez

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this will make it

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easy

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you just need to know what is the mouse direction relative to the block

woeful charm Oct 7, 2024, 1:31 PM

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cobalt fulcrum if you want to make it blocks with same axis siez

no i want it 4 grid system

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i made it already the problem that the preview block is sometimes moved inside another block which doesnt make the build system smooth

woeful charm Oct 7, 2024, 1:49 PM

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clever valley Oct 7, 2024, 8:16 PM

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Either I have memory loss or there was a function that lets you know what instance your mouse is hovering over

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If this isn't something that exists then I would use (I haven't made such snapping functions before) but I would use clamping or follow a pattern for the positions of each block

woeful charm Oct 7, 2024, 8:36 PM

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clever valley Either I have memory loss or there was a function that lets you know what instan...

u mean mouse.Targer?

clever valley Oct 7, 2024, 8:43 PM

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woeful charm u mean mouse.Targer?

yes

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Mouse.Target

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just detect the object

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then make it snap to the axis using the help of both Mouse.Target and Mouse.Hit

woeful charm Oct 7, 2024, 8:44 PM

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like this

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local tool = script.Parent
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local gridSize = 4 
function clampToGrid(position, gridSize)
    local x = math.floor(position.X / gridSize) * gridSize
    local y = math.floor(position.Y / gridSize) * gridSize
    local z = math.floor(position.Z / gridSize) * gridSize
    return Vector3.new(x, y, z)
end

tool.Activated:Connect(function()
    local target = mouse.Target
    if target then
        local mousePosition = mouse.Hit.p
        local clampedPosition = clampToGrid(mousePosition, gridSize)

        local newPart = Instance.new("Part")
        newPart.Size = Vector3.new(4, 4, 4)
        newPart.Position = clampedPosition
        newPart.Anchored = true
        newPart.Parent = workspace

        print("Placed a block at: " .. tostring(clampedPosition))
    else
        print("No valid target to place a block on.")
    end
end)

clever valley Oct 7, 2024, 8:44 PM

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If only I had more experience with this snapping stuff

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I mean

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something like this

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or Mouse.Target.Name == the block name

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just make sure it isn't nil and it is the block that you want it to snap to

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I might attempt to make a snapping function sometime soon

clever valley Oct 7, 2024, 8:49 PM

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woeful charm ```lua local tool = script.Parent local player = game.Players.LocalPlayer local ...

Honestly you should use math.clamp to make sure it doesn't make some weird clipping

woeful charm Oct 7, 2024, 8:53 PM

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alr ill try

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sadly didnt work

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local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local gridSize = 4
mouse.Button1Down:Connect(function()
    local mousePosition = mouse.Hit.Position
    local target = mouse.Target

    if target and target:IsA("BasePart") then
        local gridX = math.round(mousePosition.X / gridSize) * gridSize
        local gridY = math.round(mousePosition.Y / gridSize) * gridSize
        local gridZ = math.round(mousePosition.Z / gridSize) * gridSize

        gridY = math.clamp(gridY, target.Position.Y, target.Position.Y + target.Size.Y)

        local block = Instance.new("Part")
        block.Size = Vector3.new(4, 4, 4)
        block.Position = Vector3.new(gridX, gridY, gridZ)
        block.Anchored = true
        block.Parent = workspace
    end
end)

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to be honest i didnt expect it to be that hard im trying so hard to figure out the issue but none of them worked

clever valley Oct 7, 2024, 9:04 PM

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woeful charm ```lua local player = game.Players.LocalPlayer local mouse = player:GetMouse() l...

!!

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I'd have to dive in myself sometime and make a snap function

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but you should keep the math.clamp honestly

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it'll prevent those annoying clipping parts

woeful charm Oct 7, 2024, 9:05 PM

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i did but no difference

clever valley Oct 7, 2024, 9:05 PM

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you must've done something wrong

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send ss

woeful charm Oct 7, 2024, 9:06 PM

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ss of code?

clever valley Oct 7, 2024, 9:06 PM

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No

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when you playtest

woeful charm Oct 7, 2024, 9:07 PM

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2 sides doesnt work

clever valley Oct 7, 2024, 9:08 PM

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woeful charm 2 sides doesnt work

because you're only detecting the y axis

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/ clamping the y axis only

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But the question is

woeful charm Oct 7, 2024, 9:08 PM

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ill try clamp the others

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to

clever valley Oct 7, 2024, 9:08 PM

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yea

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but is there a way to get which way the face of a part is looking at

woeful charm Oct 7, 2024, 9:09 PM

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wait do i need to clamp Y?

clever valley Oct 7, 2024, 9:09 PM

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I mean yeah, realistically all of them

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but the thing is

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you need to also detect from where you are hovering over

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which side of the cube

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like

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let's say you made a variable for xyz

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then you make it so the faces that are facing the x axis

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= the x variable

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if x then 

    -- clamp the x

end

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it feels like I'm over complicating it

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couldn't you make like a border around the cube

woeful charm Oct 7, 2024, 9:12 PM

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ight ill try it out

clever valley Oct 7, 2024, 9:15 PM

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@woeful charm

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Detect which one it's hovering over?

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It feels like there are more efficient wayysss

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but this is what I could think of

woeful charm Oct 7, 2024, 9:16 PM

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local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local gridSize = 4

mouse.Button1Down:Connect(function()
    local mousePosition = mouse.Hit.Position
    local target = mouse.Target
    
    if target and target:IsA("BasePart") then
        local gridX = math.round(mousePosition.X / gridSize) * gridSize
        local gridY = math.round(mousePosition.Y / gridSize) * gridSize
        local gridZ = math.round(mousePosition.Z / gridSize) * gridSize

        if mousePosition.X > target.Position.X - target.Size.X / 2 and mousePosition.X < target.Position.X + target.Size.X / 2 then
            gridY = target.Position.Y
            gridZ = math.clamp(gridZ, target.Position.Z - target.Size.Z / 2, target.Position.Z + target.Size.Z / 2)
        end
        
        if mousePosition.Y > target.Position.Y - target.Size.Y / 2 and mousePosition.Y < target.Position.Y + target.Size.Y / 2 then
            gridX = math.clamp(gridX, target.Position.X - target.Size.X / 2, target.Position.X + target.Size.X / 2)
            gridZ = math.clamp(gridZ, target.Position.Z - target.Size.Z / 2, target.Position.Z + target.Size.Z / 2)
        end
        
        if mousePosition.Z > target.Position.Z - target.Size.Z / 2 and mousePosition.Z < target.Position.Z + target.Size.Z / 2 then
            gridY = target.Position.Y
            gridX = math.clamp(gridX, target.Position.X - target.Size.X / 2, target.Position.X + target.Size.X / 2)
        end

        gridY = math.clamp(gridY, target.Position.Y, target.Position.Y + target.Size.Y)

        local block = Instance.new("Part")
        block.Size = Vector3.new(4, 4, 4)
        block.Position = Vector3.new(gridX, gridY, gridZ)
        block.Anchored = true
        block.Parent = workspace
    end
end)

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i added stuff

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it still does the same

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2 sides doesnt work

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it is getting too complicated

clever valley Oct 7, 2024, 9:17 PM

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if Mouse.Target.Name == "Y1" or "Y2" then

    -- Clamp Y

elseif Mouse.Target.Name == "X1" or "X2" then

    -- Clamp X

elseif Mouse.Target.Name == "Z1" or "Z2" then

    -- Clamp Z

end

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?

woeful charm Oct 7, 2024, 9:18 PM

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ill try

clever valley Oct 7, 2024, 9:18 PM

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Just make sure to do the border

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just make the base a tad bit smaller

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In reality you can just have the cube itself be the borders

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but up to you how you do this

woeful charm Oct 7, 2024, 9:23 PM

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i did this ```lua
local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local gridSize = 4

mouse.Button1Down:Connect(function()
local mousePosition = mouse.Hit.Position
local target = mouse.Target

if target and target:IsA("BasePart") then
    local targetSize = target.Size / 2
    local targetPosition = target.Position

    local gridX = math.round(mousePosition.X / gridSize) * gridSize
    local gridY = math.round(mousePosition.Y / gridSize) * gridSize
    local gridZ = math.round(mousePosition.Z / gridSize) * gridSize


    if math.abs(mousePosition.X - targetPosition.X) < targetSize.X then
        gridY = targetPosition.Y
        gridZ = math.clamp(gridZ, targetPosition.Z - targetSize.Z, targetPosition.Z + targetSize.Z)
    end

    if math.abs(mousePosition.Y - targetPosition.Y) < targetSize.Y then
        gridX = math.clamp(gridX, targetPosition.X - targetSize.X, targetPosition.X + targetSize.X)
        gridZ = math.clamp(gridZ, targetPosition.Z - targetSize.Z, targetPosition.Z + targetSize.Z)
    end

    if math.abs(mousePosition.Z - targetPosition.Z) < targetSize.Z then
        gridY = targetPosition.Y
        gridX = math.clamp(gridX, targetPosition.X - targetSize.X, targetPosition.X + targetSize.X)
    end

    gridY = math.clamp(gridY, targetPosition.Y, targetPosition.Y + targetSize.Y)

    local block = Instance.new("Part")
    block.Size = Vector3.new(4, 4, 4)
    block.Position = Vector3.new(gridX, gridY, gridZ)
    block.Anchored = true
    block.Parent = workspace
end

end)

it work from all sides now but it is a bit too buggy

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well except Y

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@clever valley maybe try the script and check whats wrong with it?

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in studio

clever valley Oct 7, 2024, 9:25 PM

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I'm about to sleep

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I'm no good during late times trust me 😭

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but dm me tmrw and add me to your project ig then we'll figure it out together

woeful charm Oct 7, 2024, 9:25 PM

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alr its fine we can continue tmr

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gn

clever valley Oct 7, 2024, 9:26 PM

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gn

cobalt fulcrum Oct 8, 2024, 5:53 PM

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@woeful charm you domt need snaping function

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you just need to know wher is the mouse for the target

woeful charm Oct 8, 2024, 5:54 PM

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how

cobalt fulcrum Oct 8, 2024, 5:54 PM

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use this

woeful charm Oct 8, 2024, 5:55 PM

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what this

cobalt fulcrum Oct 8, 2024, 5:55 PM

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difference = mouse.Hit.Position - targ.Position

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local function setPos() -- Calculate the direction and magnitude of displacement
    if distX > 0 and math.abs(distX) >= targSize.X then
        scaledPosition = Vector3.new(
            mouse.Hit.Position.X + (objSize.X),
            math.round(mouse.Hit.Y/gridSize)*gridSize,
            math.round(mouse.Hit.Z/gridSize)*gridSize
        )
    elseif distX < 0 and math.abs(distX) >= targSize.X then
        scaledPosition = Vector3.new(
            mouse.Hit.Position.X - (objSize.X),
            math.round(mouse.Hit.Y/gridSize)*gridSize,
            math.round(mouse.Hit.Z/gridSize)*gridSize
        )
    elseif distY > 0 and math.abs(distY) >= targSize.Y then
        scaledPosition = Vector3.new(
            math.round(mouse.Hit.X/gridSize)*gridSize,
            mouse.Hit.Position.Y + (objSize.Y),
            math.round(mouse.Hit.Z/gridSize)*gridSize
        )
    elseif distY < 0 and math.abs(distY) >= targSize.Y then
        scaledPosition = Vector3.new(
            math.round(mouse.Hit.X/gridSize)*gridSize,
            mouse.Hit.Position.Y - (objSize.Y),
            math.round(mouse.Hit.Z/gridSize)*gridSize
        )
    elseif distZ > 0 and math.abs(distZ) >= targSize.Z then
        scaledPosition = Vector3.new(
            math.round(mouse.Hit.X/gridSize)*gridSize,
            math.round(mouse.Hit.Y/gridSize)*gridSize,
            mouse.Hit.Position.Z + (objSize.Z)
        )
    elseif distZ < 0 and math.abs(distZ) >= targSize.Z then
        scaledPosition = Vector3.new(
            math.round(mouse.Hit.X/gridSize)*gridSize,
            math.round(mouse.Hit.Y/gridSize)*gridSize,
            mouse.Hit.Position.Z - (objSize.Z)
        )
    end
end

woeful charm Oct 8, 2024, 5:56 PM

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ill try it

cobalt fulcrum Oct 8, 2024, 5:57 PM

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this is my system use grid and its customisable

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You can change the size of the blocks, make different dimensions, and change the size of the grid. and rotate it

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but this would be more complicated than having the blocks be of equal dimensions.

cobalt fulcrum Oct 8, 2024, 6:00 PM

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clever valley

bro dont use this just use ```lua
mouse.Hit.Position - targ.Position

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or something better

woeful charm Oct 8, 2024, 6:04 PM

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i did this

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i cant send script

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like thsi

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cobalt fulcrum Oct 8, 2024, 6:08 PM

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woeful charm

yes then move block to newPositon]

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is it work ?

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you can also use ```lua
mouse.target.CFrame:pointToObjectSpace(mouse.Hit.Position)

woeful charm Oct 8, 2024, 6:10 PM

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not able to add on this side

cobalt fulcrum Oct 8, 2024, 6:11 PM

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woeful charm not able to add on this side

hmmmm

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Let me think of something simpler and more practical.

woeful charm Oct 8, 2024, 6:13 PM

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woeful charm not able to add on this side

does this happen in ur game

cobalt fulcrum Oct 8, 2024, 6:13 PM

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@woeful charm did Do you use blocks of identical dimensions?

cobalt fulcrum Oct 8, 2024, 6:13 PM

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woeful charm does this happen in ur game

no its work perfect

woeful charm Oct 8, 2024, 6:14 PM

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ye local objSize = Vector3.new(gridSize, gridSize, gridSize)

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wanna check the game?

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like edit

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on it

cobalt fulcrum Oct 8, 2024, 6:14 PM

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woeful charm wanna check the game?

i need to check all the script

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to see where is the error

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i will remake it for you

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or i will make another one simple

cobalt fulcrum Oct 8, 2024, 6:16 PM

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cobalt fulcrum <@931559777564254208> did Do you use blocks of identical dimensions?

You did not answer

woeful charm Oct 8, 2024, 6:16 PM

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cobalt fulcrum i need to check all the script

its only one script

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(for test)

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i said ye

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whats ur user

cobalt fulcrum Oct 8, 2024, 6:16 PM

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woeful charm i said ye

do you want to rotate it ?

woeful charm Oct 8, 2024, 6:16 PM

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ye

cobalt fulcrum Oct 8, 2024, 6:17 PM

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woeful charm ye

ok then we cant use mouse.target.CFrame:pointToObjectSpace(mouse.Hit.Position)

woeful charm Oct 8, 2024, 6:17 PM

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then

cobalt fulcrum Oct 8, 2024, 6:17 PM

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show me your script

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i will fix it

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woeful charm Oct 8, 2024, 6:19 PM

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alr

rotund elbowBOT Oct 8, 2024, 6:19 PM

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studio ** You are now Level 9! ** studio

woeful charm Oct 8, 2024, 6:19 PM

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i cant

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its too big

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wait

cobalt fulcrum Oct 8, 2024, 6:19 PM

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woeful charm its too big

you can

woeful charm Oct 8, 2024, 6:19 PM

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local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local gridSize = 4
local objSize = Vector3.new(gridSize, gridSize, gridSize)

local function setPos()
    local difference = mouse.Hit.Position - mouse.Target.Position
    local scaledPosition = Vector3.new(
        math.round(mouse.Hit.X / gridSize) * gridSize,
        math.round(mouse.Hit.Y / gridSize) * gridSize,
        math.round(mouse.Hit.Z / gridSize) * gridSize
    )

    if math.abs(difference.X) >= objSize.X then
        scaledPosition = Vector3.new(
            mouse.Hit.Position.X + math.sign(difference.X) * objSize.X,
            math.round(mouse.Hit.Y / gridSize) * gridSize,
            math.round(mouse.Hit.Z / gridSize) * gridSize
        )
    elseif math.abs(difference.Y) >= objSize.Y then
        scaledPosition = Vector3.new(
            math.round(mouse.Hit.X / gridSize) * gridSize,
            mouse.Hit.Position.Y + math.sign(difference.Y) * objSize.Y,
            math.round(mouse.Hit.Z / gridSize) * gridSize
        )
    elseif math.abs(difference.Z) >= objSize.Z then
        scaledPosition = Vector3.new(
            math.round(mouse.Hit.X / gridSize) * gridSize,
            math.round(mouse.Hit.Y / gridSize) * gridSize,
            mouse.Hit.Position.Z + math.sign(difference.Z) * objSize.Z
        )
    end

    return scaledPosition
end

mouse.Button1Down:Connect(function()
    if mouse.Target then
        local newPosition = setPos()
        if newPosition then
            local block = Instance.new("Part")
            block.Size = objSize
            block.Position = newPosition
            block.Anchored = true
            block.Parent = workspace
        end
    end
end)

cobalt fulcrum Oct 8, 2024, 6:19 PM

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its not big do you want to see big one troll

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woeful charm Oct 8, 2024, 6:22 PM

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troll

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anyway

woeful charm Oct 8, 2024, 6:23 PM

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woeful charm ```lua local player = game.Players.LocalPlayer local mouse = player:GetMouse() l...

yk whats the problem?

cobalt fulcrum Oct 8, 2024, 6:24 PM

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woeful charm yk whats the problem?

yes

cobalt fulcrum Oct 8, 2024, 6:25 PM

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woeful charm yk whats the problem?

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You checked 3 out of 6 directions.

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you checked (+x , +y , +z)
but you dont checked (-x , -y , -z)

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ley me fix it

woeful charm Oct 8, 2024, 6:27 PM

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alr

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i made it

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but i found some bugs

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i think ill try urs

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are u done

cobalt fulcrum Oct 8, 2024, 7:08 PM

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woeful charm are u done

oh yeah

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i forget sorry

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this is the script

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local player = game:GetService("Players").LocalPlayer
local mouse = player:GetMouse()
local gridSize = 4

local function setPos()
    local newPositon
    local target = mouse.Target

    if target then
        local difference = mouse.Hit.Position - target.Position

        if math.abs(difference.X) >= gridSize / 2 then
            if difference.X > 0 then
                newPositon = target.Position + Vector3.new(gridSize, 0, 0)
            else
                newPositon = target.Position - Vector3.new(gridSize, 0, 0)
            end
        elseif math.abs(difference.Y) >= gridSize / 2 then
            if difference.Y > 0 then
                newPositon = target.Position + Vector3.new(0, gridSize, 0)
            else
                newPositon = target.Position - Vector3.new(0, gridSize, 0)
            end
        elseif math.abs(difference.Z) >= gridSize / 2 then
            if difference.Z > 0 then
                newPositon = target.Position + Vector3.new(0, 0, gridSize)
            else
                newPositon = target.Position - Vector3.new(0, 0, gridSize)
            end
        end
    end

    return newPositon
end

mouse.Button1Down:Connect(function()
    local newPos = setPos()
    if newPos then
        local block = Instance.new("Part")
        block.Size = Vector3.new(gridSize, gridSize, gridSize)
        block.Position = newPos
        block.Anchored = true
        block.Parent = workspace
    end
end)```

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you can idet it

clever valley Oct 8, 2024, 8:22 PM

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cobalt fulcrum bro dont use this just use ```lua mouse.Hit.Position - targ.Position ```

I know but then you'd have to get what it's closest to

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it doesn't get the specified axis

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but I should stay out of this maybe because I haven't made a snapping function before

woeful charm Oct 8, 2024, 9:00 PM

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this method is very similar to ```lua
elseif Target.Parent.Name == "BuildContainer" then
OutOfBounds = false
if Mouse.TargetSurface == Enum.NormalId.Front then
RB.Position = Target.Position + Vector3.new(0,0,-3.5)
elseif Mouse.TargetSurface == Enum.NormalId.Back then
RB.Position = Target.Position + Vector3.new(0,0,3.5)
elseif Mouse.TargetSurface == Enum.NormalId.Left then
RB.Position = Target.Position + Vector3.new(-3.5,0,0)
elseif Mouse.TargetSurface == Enum.NormalId.Right then
RB.Position = Target.Position + Vector3.new(3.5,0,0)
elseif Mouse.TargetSurface == Enum.NormalId.Top then
RB.Position = Target.Position + Vector3.new(0,3.5,0)
elseif Mouse.TargetSurface == Enum.NormalId.Bottom then
RB.Position = Target.Position + Vector3.new(0,-3.5,0)
end
RB.Parent = BuildSpace

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@cobalt fulcrum

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right?

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but this system is not rly good

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it works tho

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but i dont think it is recommended i think

cobalt fulcrum Oct 10, 2024, 10:26 AM

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woeful charm this method is very similar to ```lua elseif Target.Parent.Name == "...

This method works

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but

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if you rotate the block

#grid placement help