So! Im trying to make a tower defence game where bots smothly move across the track using bezier curves.. however.. this happens..

http://prntscr.com/l7bom5

It creates 2 tracks for some reason and the enemys go on the track witch does not curve.. Why i this?

Here is my scripts that control this!

Script 1:

-- Starts the track and makes the course.
local lod = 105

local course = require(game.ReplicatedStorage.Modules.OtherStuff.Course)

local events = game.ReplicatedStorage.Events
local signal = events:WaitForChild("Signal")

local nodes = course:spawnNodes(workspace.Course,lod)

Script 2:

-- Spawns nodes into the game.
function course:spawnNodes(t,l)
	local bezier = require(game.ReplicatedStorage.Modules.OtherStuff.Bezier)
	local nodes = {}
	for _,n in pairs(t.Paths:GetChildren()) do
		nodes[tonumber(n.Name)] = n
	end
	for i,n in pairs(nodes) do
		if nodes[i+1] and nodes[i+2] and (tonumber(n.Name)) ~= 0 then
			local pda = Vector3.new(0,game.ReplicatedStorage.Assets.Enemies.Regular.Position.Y-n.Position.Y,0)
			local z,z1,z2 = n.Position+pda,nodes[i+1].Position+pda,nodes[i+2].Position+pda
			nodes[i]=bezier:curve(z,z1,z2,l,true,n) -- This creates the curve.
		end
	end
	return nodes
end

Bezier Script

-- Somehow this get run twice and creates two lines and the bot does not go on the right track.
local bezier = {__type="Bezier"}

function GetCorners(part)
	local corners = {}
	for x= -1,1,2 do
		for y= -1,1,2 do
			for z= -1,1,2 do
				corners[#corners+1] = part.CFrame:pointToWorldSpace(Vector3.new(part.Size.X/2*x,part.Size.Y/2*y,part.Size.Z/2*z))
			end
		end
	end
	return corners
end

function getTopCorner(p)
	local c = GetCorners(p)
	local tc = CFrame.new((c[3].x+c[8].x)/2,(c[3].y+c[8].y)/2,(c[3].z+c[8].z)/2)*CFrame.Angles(math.rad(p.Rotation.X),math.rad(p.Rotation.Y),math.rad(p.Rotation.Z))
	return c,tc
end

function line3D(o,o2,n,p)
	local surfaces = {
		"BackSurface",
		"FrontSurface",
		"RightSurface",
		"LeftSurface",
		"TopSurface",
		"BottomSurface"
	}
	local mag = (o-o2).magnitude
	local l = Instance.new("Part")
	if n then
		l.Name = n
	else
		l.Name = "Line3D"
	end
	l.Material = Enum.Material.DiamondPlate
	l.BrickColor = BrickColor.new("Bright green")
	l.Anchored = true
	l.Locked = true
	l.Size = Vector3.new(0.3,0.3,mag)
	l.CFrame = CFrame.new(o,o2)*CFrame.new(0,0,-mag/2)
	for n,d in pairs(surfaces) do
		l[d] = Enum.SurfaceType.SmoothNoOutlines
	end
	l.Parent = p
	return l
end

function bezier:curve(x,y,z,l,d,pa)
	local lastPoint
	local points = {}
	for t= 0,1,1/l do
		local p = (1-t)^2*x+2*(1-t)*t*y+t^2*z
		if (lastPoint and d~= false)then
			local v = line3D(lastPoint,p,"line",pa)
			local c,tc = getTopCorner(v)
			points[#points+1] = tc
		elseif lastPoint and not d then
			local v = line3D(lastPoint,p,"line",pa)
			local c,tc = getTopCorner(v)
			v:Destroy()
			points[#points+1] = tc
		end
		lastPoint=p
	end
	return points
end

return bezier

Bot Script:

-- Controls the enemies.
local self = {}
local ai = {}

function self:StartEnemy(source, enemy, bl)
	local stats = require(game.ReplicatedStorage.Modules.Types.EnemyStats)
	
	stats = stats[enemy]
	local st = {paused=false,destroyed=false,body=nil}
	
	local obj = game.ReplicatedStorage.Assets.Enemies[enemy]:Clone()
	obj.CFrame = bl.Parent.Other:WaitForChild("StartPath").CFrame
	obj.Parent = bl
	st.body = obj
	ai[obj] = st
	
	
	spawn(function()	
		for i=1,#source,1 do
			if i%2 ~= 0 and ai[obj] ~= nil and not source[i].ClassName then
				for n,v in pairs(source[i]) do
					if ai[obj] ~= nil then
						local scf = obj.CFrame
						for j=0,1,stats.Speed*0.005 do
							obj.CFrame = scf:lerp(v,j)
							wait(0.01)	
						end
					end
				end
			else
				break
			end
		end
	end)
end

function self:EndLife(enemy)
	ai[enemy].destroyed = true
	ai[enemy].body:Destroy()
	ai[enemy] = nil
	
end

return self

Start Script:

-- This starts the bot.
enemyai:StartEnemy(nodes, "Regular", workspace.Course.Enemies)

I have sat trying to fix this for 4 hours.. I have no idea whats wrong with it. If you know whats wrong please let me know! Thanks!

Anonymous