Recently I made two realistic radar system. One of them being a scanning one that scans for players and points if it hits the player or any npc, other being just a live radar that displays position in realtime.
Here are a few images:
Live radar
Scanning radar
If you encounter any sort of bugs please do not hesitate and let me know as soon as possible.
Here is the model for both radars → .
Leave a review on how do you think these are.
0 voters
Would test this out when I get access to Studio, seems like something useful for my future games, so thank you for sharing this.
No problem! Glad to hear that you find this resource useful.
After analyzing the code, it has been found that it is not been optimized. Firstly, Both UI scripts have a render stepped that is iterating through workspace. Secondly, within the iteration there is a lot of calculations being done which can be an expensive use of CPU.
Thats not true because its running on 60 fps on my pc which is not that heavy duty. Here is a list of specs: 6gb ram, Core i3 and no graphics card/ssd. So thats statement is quite stupid. I am sure people these days have a better pc that my current one.
And how would you tackle such a problem?
Wow the visuals on this look actually very good. Nice job 
Looping through every descendant of workspace on a RenderStepped connection is definitely not efficient. It would be much better to have a local variable that stores a table with each humanoid cached so it does not have to recalculate each time.
Saying “Oh well at least it works” is not going to fix the inefficiency of the code, it will just make you more oblivious to the actual problem. @ColorCorrectional was simply providing constructive criticism.
You only really need to do a full scan through workspace once to find existing Humanoids - any that come in later can be picked up with the workspace.DescendantAdded event. Humanoids picked up by these can be stored in a table, and that table should be iterated over instead of workspace:GetDescendants.
Still not super efficient, but it does save iterating over literally every single Instance in the workspace every render frame. Please don’t do that.
Looping GetDescendants() on workspace is the last thing you’d want to do. It may seem fine when running this on an empty baseplate but imagine what would happen if this was implemented into an actual game with thousands of instances in workspace.
I would say listen to when the character’s position is changed instead.
Hello. This system is great and really easy to use and modify, but I realized there wasn’t a built in tag specific scan so I just made edited versions that only scan for humanoids with certain tags. Both versions below.
local Base = script.Parent
local Map = Base.Map
local RS = game:GetService("RunService")
local CS = game:GetService("CollectionService")
local Player = game.Players.LocalPlayer
local Char = Player.Character or Player.CharacterAdded:Wait()
local HRP:Part = Char:WaitForChild("HumanoidRootPart")
local Dot = script:WaitForChild("PlayerDot")
local camera = workspace.CurrentCamera
local dist = 50
local function tween(o,d,g)
game:GetService("TweenService"):Create(o,TweenInfo.new(d),g):Play()
end
local function Exists(Obj)
for i,v in pairs(Map:GetChildren()) do
if v:FindFirstChild("Object") then
if v.Object.Value == Obj then
return v
end
end
end
return nil
end
RS.RenderStepped:Connect(function(dt)
local _,y,_ = camera.CFrame:ToOrientation()
Map.Rotation = math.deg(y)
Map.North.Rotation = -Map.Rotation
for _,hum in pairs(--[[Your tag here]]) do
local humanoid = hum:FindFirstChild("Humanoid")
if humanoid and not humanoid:IsDescendantOf(Char) then
if hum.PrimaryPart then
local rootPos:Vector3 = hum.PrimaryPart.Position
rootPos = Vector3.new(rootPos.X,0,rootPos.Z)
local HRPPos = Vector3.new(HRP.Position.X,0,HRP.Position.Z)
local a = camera.CFrame.LookVector
a = Vector3.new(a.X,0,a.Z)
local b = (rootPos-HRPPos).Unit
b = Vector3.new(b.X,0,b.Z)
local dotp = math.acos(a:Dot(b))
if (rootPos-HRPPos).Magnitude <= dist then
if not Exists(hum) then
local Point = Dot:Clone()
Point.Parent = Map
Point.Object.Value = hum
local Pos = (rootPos-HRPPos) * 0.5/dist
Point.Position = UDim2.new(Pos.X+0.5,0,Pos.Z+0.5,0)
local Color = Color3.fromRGB(255,dotp < math.pi/4 and 123 or 255,dotp < math.pi/4 and 123 or 255)
Point.BackgroundColor3 = Color
Point.UIStroke.Color = Color
else
local Point = Exists(hum)
local Pos = (rootPos-HRPPos) * 0.5/dist
tween(Point,0.1,{Position = UDim2.new(Pos.X+0.5,0,Pos.Z+0.5,0)})
local Color = Color3.fromRGB(255,dotp < math.pi/4 and 123 or 255,dotp < math.pi/4 and 123 or 255)
tween(Point,0.25,{BackgroundColor3 = Color})
tween(Point.UIStroke,0.25,{Color = Color})
end
else
if Exists(hum) then
Exists(hum):Destroy()
end
end
end
end
end
end)
^-Live Radar
v-Scanning Radar
local Base = script.Parent
local Map = Base.Map
local Line = Base.Line
local RS = game:GetService("RunService")
local CS = game:GetService("CollectionService")
local Player = game.Players.LocalPlayer
local Char = Player.Character or Player.CharacterAdded:Wait()
local HRP:Part = Char:WaitForChild("HumanoidRootPart")
local Dot = script:WaitForChild("PlayerDot")
local camera = workspace.CurrentCamera
local dist = 50
local speed = 1.5
local rot = 0
local function tween(o,d,g)
game:GetService("TweenService"):Create(o,TweenInfo.new(d),g):Play()
end
local db = false
local function addPoint(rotat,rootPos,HRPPos)
local Point = Dot:Clone()
Point.Parent = Map
Point.Rotation = rotat
local diff = (rootPos-HRPPos) * 0.5/dist
Point.PlayerDot.Position = UDim2.new(0.5,0,0.5-diff.Magnitude,0)
return Point
end
RS.RenderStepped:Connect(function(dt)
rot -= dt*60*speed
Line.Rotation = (rot-90) % 360
for _,hum in pairs(CS:GetTagged("Enemy")) do
local humanoid = hum:FindFirstChild("Humanoid")
if humanoid and not humanoid:IsDescendantOf(Char) then
if hum.PrimaryPart then
local rootPos:Vector3 = hum.PrimaryPart.Position
local HRPPos = Vector3.new(HRP.Position.X,0,HRP.Position.Z)
rootPos = Vector3.new(rootPos.X,0,rootPos.Z)
local a = Vector3.new(0,0,-1)
local b = (rootPos-HRPPos).Unit
local dotp = math.deg(math.acos(a:Dot(b)))
if rootPos.X-HRPPos.X < 0 then
dotp = -dotp
end
dotp = dotp < 0 and dotp + 360 or dotp
if (rootPos-HRPPos).Magnitude <= dist then
local _,y,_ = camera.CFrame:ToOrientation()
local rotat = dotp+math.deg(y)
if math.abs(Line.Rotation-rotat) < speed then
if not db then
db = true
local Point = addPoint(rotat,rootPos,HRPPos)
tween(Point.PlayerDot,1,{BackgroundTransparency = 1})
tween(Point.PlayerDot.UIStroke,1,{Transparency = 1})
tween(Point.PlayerDot,1,{Size = UDim2.new(0.05,0,0.05,0)})
game:GetService("Debris"):AddItem(Point,1)
wait(dt*2)
db = false
end
end
end
end
end
end
end)
@foodman54 @Auhrii @FreezeShock @2jammers I understand what you guys are saying and I do agree on that. Next time making that I will make sure to fix the bugs.
Thanks for the feedback. I will also update the model in a bit.
Would this work if I modified it to put it on a BillboardGUI?
Would like to use it for a Craftable Radar Item.
I’d love to feature this in a cruise ship I am building!
Yes it would work. But I haven’t tested it.
Ok! I will test it. If i did it, it might need adjustments, due to the Radar tracking the Players Position, and a Part not being a player.
I am not able to update this as I have been really busy. I would when I remake it? Maybe?
I was meaning that I could modify it myself, if it doesn’t work.
Before I do any “Code Modifying”, I’m gonna try and whatever Tag it uses to detect the player to the part i’m attaching it to.
I can’t do ANYTHING yet, because I don’t have my PC build working yet.
So you don’t have to do anything to make this work for me! I can figure it out.
Alright, thanks a lot for cooperating.
Thank you everyone for showing so much support to this project! I wish you all a great august!