I need help making a Grid Based Formula that ignores an object's rotation/tilt

haydengamingdo · January 2, 2024, 9:20pm

I’ve been working on a small project, and I added rotation and tilting, but it caused issues. The grid system I made was offset and so on. What I am trying to get is a grid formula that does not require an object’s face (NormalID).

My Script:

local replicatedStorage = game:GetService("ReplicatedStorage")
local runService = game:GetService("RunService")
local userInputs = game:GetService("UserInputService")

local eventsFolder = replicatedStorage:WaitForChild("Events")

local spawnBlock = eventsFolder:WaitForChild("SpawnBlock")

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

local placeholder = nil

local rotation = 0
local tilt = 0

local beingHeld = false

function getGridPos(x, y, z)
	return Vector3.new(math.round(x/4) * 4, math.round(y/4) * 4 + 2, math.round(z/4) * 4)
end

if workspace.Placeholders:FindFirstChild("Block") then
	workspace.Placeholders.Block:Destroy()
end

mouse.Button1Down:Connect(function()
	
	if beingHeld == true then
		
		if placeholder then

			if placeholder.Position then

				spawnBlock:FireServer(placeholder.CFrame)

			end

		end
		
	end
	
end)

script.Parent.Equipped:Connect(function()
	
	beingHeld = true
	
end)
script.Parent.Unequipped:Connect(function()
	
	beingHeld = false
	
end)

runService.Heartbeat:Connect(function()
	
	if mouse.Target then
		
		if mouse.Target.Parent == workspace.Blocks then

			if not placeholder then
				
				placeholder = replicatedStorage.Blocks:FindFirstChild(player.Object.Value):Clone()
				placeholder.Parent = workspace.Blocks
				
				placeholder.Size = Vector3.new(4, 4, 4)
				placeholder.Transparency = 0.5
				placeholder.Anchored = true
				placeholder.CanCollide = false
				
				mouse.TargetFilter = placeholder
				
			else
				
				if beingHeld == true then

					placeholder.Transparency = 0.5

				else

					placeholder.Transparency = 1

				end
				
			end
			placeholder.Color = player:WaitForChild("Color3Value").Value
			
			local targetPos = mouse.Target.Position
			--targetPos = getGridPos(targetPos.X, targetPos.Y, targetPos.Z)

			local targetSurface = mouse.TargetSurface.Name

			if targetSurface == "Top" then
				
				targetPos += Vector3.new(0, 4, 0)
				
			elseif targetSurface == "Bottom" then
				
				targetPos += Vector3.new(0, -4, 0)
				
			elseif targetSurface == "Front" then
				
				targetPos += Vector3.new(0, 0, -4)
				
			elseif targetSurface == "Back" then

				targetPos += Vector3.new(0, 0, 4)
				
			elseif targetSurface == "Left" then

				targetPos += Vector3.new(-4, 0, 0)
				
			elseif targetSurface == "Right" then

				targetPos += Vector3.new(4, 0, 0)
				
			end]]
			
			placeholder.CFrame = CFrame.new(targetPos) * CFrame.Angles(math.rad(tilt), math.rad(rotation), 0)
			
		end
		
	end
	
end)

userInputs.InputBegan:Connect(function(input, gP)
	
	if not gP then
		
		if input.KeyCode == Enum.KeyCode.R then
			
			rotation += 90
			
		elseif input.KeyCode == Enum.KeyCode.T then
			
			tilt += 90
			
		end
		
	end
	
end)

player:WaitForChild("Object"):GetPropertyChangedSignal("Value"):Connect(function()
	
	if placeholder then
		
		placeholder:Destroy()
		placeholder = nil
		
	end
	
end)

Nico_Nic77 · January 2, 2024, 11:24pm

Can you maybe go in further detail what this exactly is? Is it some sort of building system?

haydengamingdo · January 2, 2024, 11:26pm

It’s like the game Blockate.

limit

Nico_Nic77 · January 2, 2024, 11:43pm

Look into these posts:

They show how to solve your problem

function Round(x, mult)
	return math.floor((x / mult) + 0.5) * mult
end

– made by sleitnick in the second link I provided

haydengamingdo · January 3, 2024, 12:09am

For that function, it puts the cube inside the target!
Heres the game link: The Game

My Vector Scripts:

function Round(x, mult)
	return math.floor((x / mult) + 0.5) * mult
end

targetPos = Vector3.new(Round(targetPos.X, 4), Round(targetPos.Y, 4), Round(targetPos.Z, 4))

Nico_Nic77 · January 3, 2024, 12:24am

I think I have achieved what you were going for:

local gridSize = Vector3.new(4,4,4)
local gridOffset = Vector3.new(2,2,2)

local function snap(position)
	local x = math.round((position.X - gridOffset.X) / gridSize.X)*gridSize.X
	local y = math.round((position.Y + gridOffset.Y) / gridSize.Y)*gridSize.Y
	local z = math.round((position.Z - gridOffset.Z) / gridSize.Z)*gridSize.Z
	return Vector3.new(x,y,z)
end
local localplayer = game.Players.LocalPlayer
local mouse = localplayer:GetMouse()


game:GetService("RunService").RenderStepped:Connect(function()
	local char = localplayer.Character
	local params = RaycastParams.new()
	params.FilterType = Enum.RaycastFilterType.Exclude
	params.FilterDescendantsInstances = {workspace.Move,char}
	
	local raycast = workspace:Raycast(workspace.CurrentCamera.CFrame.Position,mouse.Hit.LookVector*1000,params)
	
	if raycast and raycast.Position and raycast.Instance then
		workspace.Move.Position = snap(raycast.Position) + Vector3.new(gridOffset.X,-gridOffset.Y,gridOffset.Z)
	end
end)

mouse.Button1Down:Connect(function()
	local clone = workspace.Move:Clone()
	clone.Transparency = 0
	clone.Name = "clone"
	clone.CanCollide = true
	clone.Parent = workspace
end)

External Media

robloxapp-20240103-0123167.wmv (888.2 KB)

The workspace.Move is just a random part with size of 4

haydengamingdo · January 3, 2024, 12:32am

The right, back, and bottom of the object causes the placeholder to go INSIDE the object.

My ENTIRE script:

local runService = game:GetService("RunService")
local userInputs = game:GetService("UserInputService")

local eventsFolder = replicatedStorage:WaitForChild("Events")

local spawnBlock = eventsFolder:WaitForChild("SpawnBlock")

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

local placeholder = nil

local rotation = 0
local tilt = 0

local beingHeld = false

if workspace.Placeholders:FindFirstChild("Block") then
	workspace.Placeholders.Block:Destroy()
end

mouse.Button1Down:Connect(function()
	
	if beingHeld == true then
		
		if placeholder then

			if placeholder.Position then
				
				rotation = 0
				tilt = 0

				spawnBlock:FireServer(placeholder.CFrame)

			end

		end
		
	end
	
end)

script.Parent.Equipped:Connect(function()
	
	beingHeld = true
	
end)
script.Parent.Unequipped:Connect(function()
	
	beingHeld = false
	
end)

function Round(x, mult)
	return math.floor((x / mult) + 0.5) * mult
end

local function snap(position)
	local x = math.round((position.X - 4) / 4)*4
	local y = math.round((position.Y + 4) / 4)*4
	local z = math.round((position.Z - 4) / 4)*4
	return Vector3.new(x,y,z)
end

runService.Heartbeat:Connect(function()
	
	if mouse.Target then
		
		if mouse.Target.Parent == workspace.Blocks then

			if not placeholder then
				
				placeholder = replicatedStorage.Blocks:FindFirstChild(player.Object.Value):Clone()
				placeholder.Parent = workspace.Placeholders
				
				placeholder.Size = Vector3.new(4, 4, 4)
				placeholder.Transparency = 0.5
				placeholder.Anchored = true
				placeholder.CanCollide = false
				
				mouse.TargetFilter = placeholder
				
			else
				
				if beingHeld == true then

					placeholder.Transparency = 0.5

				else

					placeholder.Transparency = 1

				end
				
			end
			
			local targetPos
			
			local char = player.Character
			local params = RaycastParams.new()
			params.FilterType = Enum.RaycastFilterType.Exclude
			params.FilterDescendantsInstances = {placeholder,char}

			local raycast = workspace:Raycast(workspace.CurrentCamera.CFrame.Position,mouse.Hit.LookVector*1000,params)

			if raycast and raycast.Position and raycast.Instance then
				targetPos = snap(raycast.Position) + Vector3.new(4,-4,4)
				targetPos = CFrame.new(targetPos)

				placeholder.CFrame = targetPos * CFrame.Angles(math.rad(tilt), math.rad(rotation), 0)
			end
			
			placeholder.Color = player:WaitForChild("Color3Value").Value
			
			--[[local targetSurface = mouse.TargetSurface.Name
			
			local surfaceIDs = {
				Top = targetPos + Vector3.new(0,4,0),
				Bottom = targetPos - Vector3.new(0,4,0),
				Left = targetPos - Vector3.new(4,0,0),
				Right = targetPos + Vector3.new(4,0,0),
				Front = targetPos - Vector3.new(0,0,4),
				Back = targetPos + Vector3.new(0,0,4),
			}
			
			--targetPos = surfaceIDs[targetSurface]]
			
			--targetPos = Vector3.new(Round(targetPos.X, 4), Round(targetPos.Y, 4), Round(targetPos.Z, 4))
			
		end
		
	end
	
end)

userInputs.InputBegan:Connect(function(input, gP)
	
	if not gP then
		
		if input.KeyCode == Enum.KeyCode.R then
			
			rotation += 90
			
		elseif input.KeyCode == Enum.KeyCode.T then
			
			tilt += 90
			
		end
		
	end
	
end)

player:WaitForChild("Object"):GetPropertyChangedSignal("Value"):Connect(function()
	
	if placeholder then
		
		placeholder:Destroy()
		placeholder = nil
		
	end
	
end)

Nico_Nic77 · January 3, 2024, 2:15pm

I fixed the issue with the snapping not working on some positions by subtracting a fraction of the inverted direction from the result.Position!

local Players			= game:GetService("Players")
local RunService 		= game:GetService("RunService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
--
local placer 			= ReplicatedStorage:WaitForChild("PlacingTemplate"):Clone()
--
local gridSize 			= Vector3.new(4,4,4) 
local displacement		= Vector3.new(2,2,2)
local maxDistance 		= 1000
--
local localPlayer		= Players.LocalPlayer
local mouse				= localPlayer:GetMouse()
local currentCamera 	= workspace.CurrentCamera

placer.Name 			= "placing"
placer.Parent 			= workspace
placer.Anchored 		= true
placer.CanCollide		= false
--
local function snap(position)	
	local x = math.round(position.X / gridSize.X)*gridSize.X
	local y = math.round(position.Y / gridSize.Y)*gridSize.Y
	local z = math.round(position.Z / gridSize.Z)*gridSize.Z
	return Vector3.new(x,y,z)
end
local function place(cFrame)
	ReplicatedStorage.Place:FireServer(cFrame,Color3.fromRGB(math.clamp(cFrame.Position.Y*6,0,255),60,60))
end

RunService.RenderStepped:Connect(function()
	local character = localPlayer.Character
	
	local params 	= RaycastParams.new()
	params.FilterType = Enum.RaycastFilterType.Exclude
	params.FilterDescendantsInstances = {placer,character}
	
	local direction = mouse.Hit.LookVector
	local origin 	= currentCamera.CFrame.Position
	local result 	= workspace:Raycast(origin,direction*maxDistance,params)
	
	
	if result and result.Position and result.Instance then
		local pos = result.Position - Vector3.new(0.05*direction.X,0.05*direction.Y,0.05*direction.Z) --going back by a little to ensure that the snapping will never overlap
		local newPos = snap(pos-displacement)
		
		placer.CFrame = CFrame.new(newPos+displacement)
	end
end)

mouse.Button1Down:Connect(function() place(placer.CFrame) end)

local pos = result.Position - Vector3.new(0.05*direction.X,0.05*direction.Y,0.05*direction.Z)
local newPos = snap(pos-displacement)

Hope this fixes your problem!

Here is a link to my full system:

haydengamingdo · January 3, 2024, 4:03pm

THANK YOU SO MUCH!

limitlimitlimit

system · January 17, 2024, 4:03pm

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.