I am trying to make an obby and I want to make a system where there’s an arrow over the next checkpoint you need to reach. I’m a builder and designer who is trying to learn Roblox LUA so I’m not very experienced. I searched through the forums for help and I wrote this line of code:
local Arrow = game.Workspace.Arrow
script.Parent.Touched:connect(function(touched)
local Character = touched.Parent
if Character.Name = game.Players:GetPlayerFromCharacter(Character) then
Arrow.Position = ?
else
return
end
end)
So I need help with this code. I don’t know how to get the arrow to be over the next checkpoint you need to reach. I am using a folder in the Workspace called “Checkpoints” and I have not coded my datastore yet for the checkpoints.
Can someone help me finish this code where the Arrow.Position is over the next checkpoint you must reach? Could you give me an explanation as well? Thanks…
-- workspace is a default variable, you don't need to say game.Workspace
local Arrow = workspace.Arrow
local checkpoints = workspace.Checkpoints
for _, checkpoint in ipairs(checkpoints:GetChildren()) do
-- The connect function is capitalized, not lowercase
checkpoint.Touched:Connect(function(otherPart)
local character = otherPart:FindFirstAncestorOfClass("Model")
local humanoid = character:FindFirstChildOfClass("Humanoid")
if humanoid then
-- Vector3.new is basically an x, y, and z value.
-- If you want the arrow to be higher, change the middle number.
Arrow.Position = checkpoint.Position + Vector3.new(0, 10, 0)
end
end
end
Whoops, I was putting the arrow over the checkpoint that got hit.
Are the checkpoints numbered? If they are, try this:
-- workspace is a default variable, you don't need to say game.Workspace
local Arrow = workspace.Arrow
local checkpoints = workspace.Checkpoints
for i, checkpoint in ipairs(checkpoints:GetChildren()) do
-- The connect function is capitalized, not lowercase
checkpoint.Touched:Connect(function(otherPart)
local character = otherPart:FindFirstAncestorOfClass("Model")
local humanoid = character:FindFirstChildOfClass("Humanoid")
if humanoid then
-- Vector3.new is basically an x, y, and z value.
-- If you want the arrow to be higher, change the middle number.
Arrow.Position = checkpoints[i + 1].Position + Vector3.new(0, 10, 0)
end
end
end
Best is if your checkpoints would be named something like Checkpoint{Index}, where Index stands the order of the checkpoint, so naturally Checkpoint0, Checkpoint1, Checkpoint2, ...
If player touches a checkpoint, select index from the checkpoint and then add 1 to it, so simply, if player touched Checkpoint2, you take the 2 from it and make it 3.
Clever solution would be adding an attribute to all your checkpoint with name Index and the number.
local index = script.Parent:GetAttribute("Index")
local nextCheckpoint = game.Workspace:FindFirstChild("Checkpoint" .. (index+1))
Arrow.Position = nextCheckpoint.Position + Vector3.new(0, 10, 0)
You can adjust the vector, 10 is the height distance from the actual checkpoint.
pairs and ipairs are separate things. pairs is for dictionaries, and ipairs is for arrays (In this case, looping through a folder of checkpoints). More info here.
Good catch, I didn’t think about that.
I think you can put the following code in a LocalScript in StarterCharacterScripts and it should work.
local Arrow = workspace.Arrow
local checkpoints = workspace.Checkpoints
for i, checkpoint in ipairs(checkpoints:GetChildren()) do
checkpoint.Touched:Connect(function(otherPart)
local character = otherPart:FindFirstAncestorOfClass("Model")
if character == script.Parent then
Arrow.Position = checkpoints[i + 1].Position + Vector3.new(0, 10, 0)
end
end
end
Try running this and show me what prints in the output.
local Arrow = workspace.Arrow
local checkpoints = workspace.Checkpoints
for i, checkpoint in ipairs(checkpoints:GetChildren()) do
print(checkpoint)
print(checkpoints[i])
checkpoint.Touched:Connect(function(otherPart)
local character = otherPart:FindFirstAncestorOfClass("Model")
print(otherPart)
print(character)
if character == script.Parent then
local nextCheckpoint = checkpoints[i + 1]
if nextCheckpoint then
print("It should work if this prints")
Arrow.Position = checkpoints[i + 1].Position + Vector3.new(0, 10, 0)
else
print(checkpoint, "is the last checkpoint")
end
else
print("Part that touched checkpoint isn't player")
print(character, script.Parent)
end
end
end
