Even after making sure CanCollide is disabled, this placement preview is still collidable. This happens in a localscript (so that only you can see your preview). Even after disabling CanCollide, you can still jump on it, and push zombies with it, and push yourself with it. How to fix?

local createPreview = function()
	if tower.Value == 1 then
		if preview then preview:Destroy() end
		preview = game.ReplicatedStorage.Towers.gun:Clone()
		placementregion = preview:FindFirstChild("PlacementBox")
		rangeindicator = preview:FindFirstChild("RangeIndicator")
		for i,v in pairs(preview:GetDescendants()) do
			if v:IsA("BasePart") then
				if v.Name ~= "RangeIndicator" and v.Name ~= "PlacementBox" then v.Transparency = 0.5 end
				v.BrickColor = placecolor
				v.CanCollide = false
				local mesh = v:FindFirstChild("Mesh")
				if mesh then
					mesh.TextureId = ""
				end
			end
		end
		preview.PrimaryPart = placementregion
		preview.Parent = workspace.Towers
	end
	
	if tower.Value == 2 then
		if preview then preview:Destroy() end
		preview = game.ReplicatedStorage.Towers.sniper:Clone()
		placementregion = preview:FindFirstChild("PlacementBox")
		rangeindicator = preview:FindFirstChild("RangeIndicator")
		for i,v in pairs(preview:GetDescendants()) do
			if v:IsA("BasePart") then
				if v.Name ~= "RangeIndicator" and v.Name ~= "PlacementBox" then v.Transparency = 0.5 end
				v.BrickColor = placecolor
				v.CanCollide = false
				local mesh = v:FindFirstChild("Mesh")
				if mesh then
					mesh.TextureId = ""
				end
			end
		end
		preview.PrimaryPart = placementregion
		preview.Parent = workspace.Towers
	end
	
	tower.Changed:Connect(function()
		if tower.Value == 1 then
			if preview then preview:Destroy() end
			preview = game.ReplicatedStorage.Towers.gun:Clone()
			placementregion = preview:FindFirstChild("PlacementBox")
			rangeindicator = preview:FindFirstChild("RangeIndicator")
			for i,v in pairs(preview:GetDescendants()) do
				if v:IsA("BasePart") then
					if v.Name ~= "RangeIndicator" and v.Name ~= "PlacementBox" then v.Transparency = 0.5 end
					v.BrickColor = placecolor
					v.CanCollide = false
					local mesh = v:FindFirstChild("Mesh")
					if mesh then
						mesh.TextureId = ""
					end
				end
			end
			preview.PrimaryPart = placementregion
			preview.Parent = workspace.Towers
		end
		
		if tower.Value == 2 then
			if preview then preview:Destroy() end
			preview = game.ReplicatedStorage.Towers.sniper:Clone()
			placementregion = preview:FindFirstChild("PlacementBox")
			rangeindicator = preview:FindFirstChild("RangeIndicator")
			for i,v in pairs(preview:GetDescendants()) do
				if v:IsA("BasePart") then
					if v.Name ~= "RangeIndicator" and v.Name ~= "PlacementBox" then v.Transparency = 0.5 end
					v.BrickColor = placecolor
					v.CanCollide = false
					local mesh = v:FindFirstChild("Mesh")
					if mesh then
						mesh.TextureId = ""
					end
				end
			end
			preview.PrimaryPart = placementregion
			preview.Parent = workspace
		end
	end)
	
	
	spawn(function()
		while preview and placementregion and rangeindicator and placing.Value == true do
			
			local ray = Ray.new(workspace.Camera.CFrame.Position,(mouse.Hit.Position-workspace.Camera.CFrame.Position).Unit*500)
			local ignorelist = {workspace.Enemies,workspace.Towers,player.Character,preview,workspace["Projectiles/Traps"]}
			local part,position = workspace:FindPartOnRayWithIgnoreList(ray,ignorelist,false,true)
			
			preview:SetPrimaryPartCFrame(CFrame.new(position) * CFrame.new(Vector3.new(0,(placementregion.Size.Y/2),0)) * prevrot)
			local torso = preview:FindFirstChild("Torso")
			cf = torso.CFrame
			
			for i,v in pairs(preview:GetDescendants()) do
				if v:IsA("BasePart") then
					v.BrickColor = placecolor
					v.CanCollide = false
				end
			end
			wait()
		end
	end)
end
Anonymous

4 comments

0

what are u even doing, just use :GetTouchingParts()

Anonymous#
0

then create collision groups for each part

Anonymous#
0

Collision groups can only be used by the server. I specified that this is a LocalScript.

Anonymous#
0

Late response, uh, I just realized there's a property in parts that lets you set their collision ID, so that I don't need to use the localscript to set the collision groups so... RIP?

Anonymous#