local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Exclude
raycastParams.FilterDescendantsInstances = {Eye1, Eye2, Torso, HRP}
local rayDirection = Origin.CFrame * CFrame.Angles(0, 0, math.rad(Angle.Value))
local ray = workspace:Raycast(Origin.Position, rayDirection.LookVector * Distance.Value, raycastParams)
while true do
task.wait(0.1)
if ray then
if Players:GetPlayerFromCharacter(ray.Instance.Parent) then
local player = Players:GetPlayerFromCharacter(ray.Instance.Parent)
if player then
if player.Character.Humanoid.Health > 0 then
CanSee.Value = true
warn("I see " .. player.Name)
break
else
CanSee.Value = false
end
end
else
warn("Not Player")
end
end
end
I tried looking for a solution on the dev forum for a while now, but I can’t seem to find one.
This script is for an NPC that will detect a player if in the raycast, but all it says in Output is "Not Player" There is are no errors even though it doesn’t work.
The local rayDirection = Origin.CFrame * CFrame.Angles(0, 0, math.rad(Angle.Value)) line is probably the problem, because I just found this on the forum to calculate an angle, even though I don’t really understand it. (There’s no error so I don’t know…)
With your current script, a ray is only computed once as the script executes. To fix this issue, move lines 5-6 inside the loop immediately after task.wait(0.1).
task.wait(0.1)
local rayDirection = Origin.CFrame * CFrame.Angles(0, 0, math.rad(Angle.Value))
local ray = workspace:Raycast(Origin.Position, rayDirection.LookVector * Distance.Value, raycastParams)
if ray then
Can you also include the section of your script where the variables Origin and Angle are defined; this could help me determine the necessity of moving line 5 inside the loop or any other issues.
Okay I added those lines inside the loop but nothing changed.
Heres’ the full script (with those lines in the loop):
local Players = game:GetService("Players")
local NPC = script.Parent
local Origin = NPC.Head
local Distance = NPC.SpotDistance
local Angle = NPC.RayAngle
local CanSee = NPC.CanSee
local Eye1 = NPC.Head.Eye1
local Eye2 = NPC.Head.Eye2
local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Exclude
raycastParams.FilterDescendantsInstances = {Eye1, Eye2}
while true do
task.wait(0.1)
local rayDirection = Origin.CFrame * CFrame.Angles(0, 0, math.rad(Angle.Value))
local ray = workspace:Raycast(Origin.Position, rayDirection.LookVector * Distance.Value, raycastParams)
if ray then
if Players:GetPlayerFromCharacter(ray.Instance.Parent) then
local player = Players:GetPlayerFromCharacter(ray.Instance.Parent)
if player then
if player.Character.Humanoid.Health > 0 then
CanSee.Value = true
warn("I see " .. player.Name)
break
else
CanSee.Value = false
end
end
else
warn("Not Player")
end
end
end
SpotDistance is a number value set to 60, and RayAngle is a number value set to 90.
(Eye1 and Eye2 are accessories attached to the head, so I thought if I filter them out they wouldn’t get in the way, but that wasn’t the problem…)
That didn’t change anything either… I’m not sure why there are no errors, but at the same time nothing is being detected.
Also, do you know how create angles using raycast? I’m trying to make it so that the NPC can see 45 degrees left and right, instead of just a straight line.
The line: local rayDirection = Origin.CFrame * CFrame.Angles(0, 0, math.rad(Angle.Value)) is supposed to make that, but I’m not sure if this is how you do it. I also think this may be the problem, because I copy and pasted this from another post hoping it would help. (But since there is no error I don’t know what to do…)
local Players = game:GetService("Players")
local NPC = script.Parent
local Origin = NPC.Head
local Distance = NPC.SpotDistance
local Angle = NPC.RayAngle
local CanSee = NPC.CanSee
local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Exclude
raycastParams.FilterDescendantsInstances = {NPC}
local function checkIfCharacterIsInFOV(character: Model)
local playerHead = character:FindFirstChild("Head")
local playerHumanoid = character:FindFirstChildOfClass("Humanoid")
if
not playerHead or
not playerHumanoid or
not playerHumanoid.RootPart or
playerHumanoid.Health == 0
then
return false
end
local playerToNPCVector = (playerHead.Position - Origin.Position)
if playerToNPCVector.Magnitude >= Distance.Value then
return false
end
return Origin.CFrame.LookVector:Dot(playerToNPCVector.Unit) >= math.cos(math.rad(Angle.Value / 2))
end
while true do
task.wait(0.1)
for _, player in Players:GetPlayers() do
if player.Character and checkIfCharacterIsInFOV(player.Character) then
CanSee.Value = true
warn("I see " .. player.Name)
else
CanSee.Value = false
end
end
end
