I’m trying to script a system for my game, in which pressing E on an object would cause the object to be picked up and moved. When the item is picked up, pressing E again would drop the item.
Half-Blox 2 has this same system.
I haven’t found any helpful resources, apart from this post. This post is slightly different though, since it shows how to drag an item with the mouse, and not by pressing E.
What I’m saying is that I’m lost in how I would make this drag and drop system I described in the first paragraph. Does anyone know any tutorials that might be able to help me, or perhaps scripting tips, pointers, and examples? Any help would be great.
I also only have a month of scripting experience. I might ask further questions if someone decides to help out.
You can continually position the item in front of the player’s look vector (assuming they are zoomed in) by doing this:
local camCFrame = workspace.CurrentCamera.CFrame
local itemPosition = camCFrame + camCFrame.lookVector * 6
That sets itemPosition to the position 6 studs away from the player’s camera in the direction they are looking. If you put that in a loop, and position the item via BodyPosition or just setting it’s CFrame, you’ll achieve the effect you’re looking for.
Oh no don’t create an infinite loop! You’ll need to add a wait statement somewhere in there.
while true do
local camCFrame = workspace.CurrentCamera.CFrame
local itemPosition = camCFrame + camCFrame.lookVector * 6
itemModel:SetPrimaryPartCFrame(itemPosition)--this will actually set your item model to the proper position
wait()
end
You’ll have to define itemModel to whatever model you’re trying to move
Edit: You can make it smoother by using Heartbeat instead of a while loop as well
game:GetService("RunService").Heartbeat:Connect(function()
--put the code here
end)
and one more thing… how can I make sure the player can only pick up specific items? I don’t want the player to pick up, for example, the baseplate or any other items that I don’t want to be picked up.
Sorry if you consider this reply a bump but here’s a full script for it
Use CollectionService to tag the stuff you want to be grabbable with a tag called Grabbable
Put a RemoteEvent in ReplicatedStorage called Ungrab
LocalScript in StarterCharacter
local CS = game:GetService("CollectionService")
local UIS = game:GetService("UserInputService")
local Plr = game.Players.LocalPlayer
local SelectedItem
UIS.InputBegan:Connect(function(Input, GPE)
if not GPE then
if Input.KeyCode == Enum.KeyCode.E then
local Mouse = Plr:GetMouse()
if Mouse.Target and Mouse.Target:IsA("BasePart") then
if CS:HasTag(Mouse.Target, "Grabbable") then
SelectedItem = Mouse.Target
end
end
end
end
end)
UIS.InputEnded:Connect(function(Input, GPE)
if not GPE then
if Input.KeyCode == Enum.KeyCode.E then
if SelectedItem then
game.ReplicatedStorage.Ungrab:FireServer(SelectedItem, SelectedItem.Position)
SelectedItem = nil
end
end
end
end)
game:GetService("RunService").Heartbeat:Connect(function()
if SelectedItem then
local camCFrame = workspace.CurrentCamera.CFrame
local itemPosition = camCFrame + camCFrame.lookVector * 6
SelectedItem.CFrame = itemPosition
end
end)
This fires a remote when you drop the item so the server knows you moved the part and can place it where you dropped it (also physics are weird if you don’t do this)
This is exploitable but it shouldn’t really be a problem if your game is single player
That makes sense now.