Problem with grid placing

Help and Feedback Scripting Support
#1

Heyo, recently I’ve been wanting to create a placement system with stacking and all that good stuff. I’ve tried using math.clamp, not what I want. I’ve already set the plot boundaries but was just wondering how to correctly align the model in the grid squares because I am using a universal grid.

I’ve taken a look at both articles,

but neither helped in my situation so I’ve come here asking for an extra helping hand.

This is what I’ve tried:

local CanvSize = (Vector3.new(self.Plot.Size.X, self.Plot.Size.Y, self.Plot.Size.Z))/2
	local CanvPos = self.Plot.CFrame:ToObjectSpace(CFrame.new(self.Plot.Position.X, self.Plot.Position.Y,self.Plot.Position.Z))
	local FixedPos = CanvPos:ToWorldSpace(CFrame.new((CanvSize * self.GridSize)))
	
	local X = math.floor(position.X/FixedPos.X + .5) * (CanvSize.X/self.GridSize) - CanvPos.X
	
	local Z = math.floor(position.Z/FixedPos.Z + .5) * (CanvSize.Z/self.GridSize) - CanvPos.Z
	print(X, Z)

	local Y = math.floor(position.Y/self.GridSize + 0.5) * self.GridSize + model.PrimaryPart.Size.Y/2

I’ve tried using:

local X = math.floor(position.X/self.GridSize + 0.1) * self.GridSize
local Y = math.floor(position.Y/self.GridSize + 0.5) * self.GridSize + model.PrimaryPart.Size.Y/2 
local Z = math.floor(position.Z/self.GridSize + 0.1) * self.GridSize

but that led me with this:

https://gyazo.com/c5a2dd0c67eb6c52568f7b34c6ec9dff

If anyone knows how to properly calculate the grid, thank you!

#2

You can add the gridSize as offset divided by two.
example:

local Z = (math.round(position.Z/self.GridSize) * self.GridSize) + (self.GridSize/2)