Raycast not detecting obstacles

[J4Y_JP (Jay)]

In order to fix my chasing NPC’s walking animation, which kept stuttering (probably a delay whenever a waypoint was reached), I decided to use the Path:Run() function only if it’s necessary because of obstacles in the way and go with Humanoid:MoveTo() instead.

This solution fixes the stutter but the Raycast doesn’t work properly because now, my NPC almost never uses the Path:Run() function and gets stuck trying to chase me without avoiding obstacles. If there is an obstacle the Raycast SOMETIMES detects it but mostly, my script just runs Humanoid:MoveTo()

local RepStorage = game:GetService("ReplicatedStorage")
local SimplePath = require(RepStorage:WaitForChild("Modules"):WaitForChild("SimplePath"))

function run(Goal, enemy, Path)
	if Goal ~= nil and enemy:FindFirstChild("Humanoid") ~= nil then
		if enemy.Humanoid.Health > 0 then
			Path:Run(Goal)
		end
	end
end

game.Workspace:WaitForChild("Map_Sriptable"):WaitForChild("Agents").ChildAdded:Connect(function(enemy)
	
	if enemy:WaitForChild("Target").Value.Name == game.Players.LocalPlayer.Name then
		
		local Target = enemy:WaitForChild("Target")
		local Goal = Target.Value:WaitForChild("HumanoidRootPart")

		--Create a new Path using the Dummy
		local Path = SimplePath.new(enemy)

		--breaking the loops
		local breaking = false

		--Set goal to respawned character
		game.Players.LocalPlayer.CharacterAdded:Connect(function(char)
			if enemy then
				Goal = Target.Value:WaitForChild("HumanoidRootPart")
			end
		end)
		
		--Make visible
		for _, v in pairs(enemy:GetDescendants()) do
			if v:IsA("BasePart") or v:IsA("Decal") then
				if v.Name ~= "HumanoidRootPart" and v.Name ~= "Hitbox" then
					v.Transparency = 0
				end
			elseif v:IsA("BillboardGui") then
				v.Enabled = true
			elseif v:IsA("Sound") then
				v.Volume = 0.5
			end
		end

		enemy.Humanoid.Died:Connect(function()
			Path:Stop()
		end)
		
		Path.Visualize = true

		--follow target
		while true do
			while Goal ~= nil and enemy:FindFirstChild("Humanoid") ~= nil do
				if enemy.Humanoid.Health > 0 then
					
					local raycastParams = RaycastParams.new()
					raycastParams.FilterType = Enum.RaycastFilterType.Exclude
					raycastParams.FilterDescendantsInstances = {enemy, Target.Value}
					
					local raycastResult = workspace:Raycast(enemy.HumanoidRootPart.Position, (Target.Value:WaitForChild("HumanoidRootPart").Position - enemy.HumanoidRootPart.Position).Unit, raycastParams)
					if raycastResult then
						if raycastResult.Instance then
							--print(raycastResult.Instance)
							Path:Run(Goal)
							--print("path")
						else
							
							enemy.Humanoid:MoveTo(Target.Value:WaitForChild("HumanoidRootPart").Position)
							task.wait()
							--print("walk")
						end
					else
						enemy.Humanoid:MoveTo(Target.Value:WaitForChild("HumanoidRootPart").Position)
						task.wait()
						--print("walk 2")
					end
				end
			end
			if breaking == true then
				breaking = false
				Path:Stop()
				break
			end
		end
	else
		enemy:Destroy()
	end
end)

The Path:Run() function handles the pathfinding and yields to a certain point so task.wait isnt needed SimplePath - Pathfinding Module

[Juicy_Fruit]

Based on code, you are making a raycast to determine whether or not to use simplepath or use a basic moveto command–

an interesting approach but im wondering about the HitDistance value, have you test printed the value if so what were the values? This is the trigger for SimplePath:Run

If I were making a script similar to this heres how I would approach it:

Play SimplePath:Run

have Magnitude detections in place so that

If the target leaves the original SimplePath:run Position (by some threshold) then retrigger SimplePath:Run

If the self character is mega close to target (some threshold) then utilize more accurate pathing by either while looping SimplePath:Run or predict the future position using the velocity of the target and trigger SimplePath:run , triggering every so often in a while loop (I give 2 solutions as SimplePath:Run While Looping can be expensive with multiple NPCs doing that or from what I remember experiencing so there would need to be yields in place.)

Although Im a little confused what you meant by your singular NPC stuttering. SimplePath pretty much alleviates stuttering from pathing

[J4Y_JP (Jay)]

Removed “.Unit” and it works