I am currently trying to make an AI that stops chasing a character once it is out of the AI’s view (using rays). However, I have noticed that when jumping across a wall and using a second player as a to-be target, the AI does not follow the new player and stays still waiting for the original player/target to be in view again to chase.
I have traced down the problem to be with the raycasting, as when I test the AI without trying to hide behide cover with two players, when the target moves out of range, it goes to the next target in range without any issues.
If you are confused on how my AI works, here is a quick summary:
The AI looks for any players within lets say a 15 stud radius. It chases that player, again lets say, 30 studs. Once that player leaves the 30 stud radius, only then it will look for a new player. (This is to prevent the AI from rapidly switching between targets, and also so other players cannot put other people in danger and just run away)
The script:
-- Variables for the AI, its humanoid, and destination
local AI = script.Parent
local humanoid = AI.Humanoid
local AI = script.Parent
local humanoid = AI.Humanoid
local target
local cansee
local runanim = script.RunAnim
local loadedrunanim = AI.Humanoid:LoadAnimation(runanim)
--change these
local seedist = 30
local forgetdist = 30
function findNearestTorso(pos)
local list = game.Workspace:children()
local torso = nil
local temp = nil
local human = nil
local temp2 = nil
for x = 1, #list do
temp2 = list[x]
if (temp2.className == "Model") and (temp2 ~= script.Parent) then
temp = temp2:findFirstChild("HumanoidRootPart")
human = temp2:findFirstChild("Humanoid")
if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then
if (temp.Position - pos).magnitude < seedist then
torso = temp
--seedist = (temp.Position - pos).magnitude
end
end
end
end
return torso
end
local function Raycast(t)
-- Set an origin and directional vector
local rayOrigin = AI.HumanoidRootPart.Position
local rayDirection = t.Position
-- Build a "RaycastParams" object and cast the ray
local raycastParams = RaycastParams.new()
raycastParams.FilterDescendantsInstances = {AI}
raycastParams.FilterType = Enum.RaycastFilterType.Blacklist
local raycastResult = workspace:Raycast(rayOrigin, rayDirection - rayOrigin, raycastParams)
if raycastResult then
local hitPart = raycastResult.Instance
if hitPart.Parent ~= t.Parent then
return false
else
return true
end
end
end
while true do
wait()
print(target)
--get target
if target == nil then
target = findNearestTorso(script.Parent.HumanoidRootPart.Position)
end
--raycast
if target ~= nil then
cansee = Raycast(target)
if cansee == true then
print("Can reach character")
elseif cansee == false then
print("No bueno")
target = nil
end
end
--go
if target ~= nil and cansee == true and(target.Position - AI.HumanoidRootPart.Position).Magnitude <= forgetdist then
humanoid:MoveTo(target.Position)
if loadedrunanim.IsPlaying == false then
loadedrunanim:Play()
end
else
target = nil
humanoid:MoveTo(AI.HumanoidRootPart.Position)
loadedrunanim:Stop()
end
end
Thankyou for reading
