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Cover image for How to Make a Pick-Up-and-Throw System in Roblox Studio (With AI, No Scripting)
Ash | Roblox AI Dev
Ash | Roblox AI Dev

Posted on Originally published at Medium

How to Make a Pick-Up-and-Throw System in Roblox Studio (With AI, No Scripting)

Grab, aim, charge and throw, plus a camera that follows what you threw — in four prompts

Disclosure: I'm in ForgeGUI's creator partner program and get paid for content about it. Everything below comes from real footage of the build.

The camera following a thrown rock down a cobblestone street

A throwing system is one of the most-requested mechanics for Roblox games: dodgeball, snowball fights, grenades, "throw the noob" games. It's also one of the harder ones for beginners, because it mixes several things at once: picking an object up, attaching it to the character, physics on release, and usually some UI to show power or aim.

Here's how I built one without writing any code, using ForgeGUI, an AI tool with a Roblox Studio plugin that puts what it generates straight into your place.


Step 1: Something to throw

Prompt: "Place a rock"

Start with the object itself. Keep it simple: one rock next to your character on an empty baseplate. You can swap the rock for a ball, a snowball or anything else later. The system matters more than the model.

Step 2: The core mechanic

Prompt: "Make it so that I can grab and throw the rock"

Typing the grab-and-throw prompt

This is the prompt that does the heavy lifting. Notice the wording: it describes what the player can do (grab it, throw it), not how to code it. You don't need to know anything about welds, tools or applying velocity.

The result: the character can pick the rock up and throw it.

Step 3: Make it feel like a real game

Prompt: "Make it 100 times cooler"

A charge-up power meter and an aiming line after

This one sounds like a joke, but it's the most useful prompt in the build. Once the mechanic exists, a "vibe" prompt lets the AI decide how to upgrade it. Here it added:

  • a charge-up power meter next to the character,
  • an aiming line that shows where the rock will go,
  • a glowing effect on the throw.

That's the kind of polish that normally takes the longest to build by hand.

Tip: only use vibe prompts after the basic mechanic works. On an empty place, "make it cooler" has nothing concrete to improve.

Step 4: Give it a target

Prompt: "Place a dummy so I can practice"

A practice dummy placed in front of the player

A throwing system needs something to hit. Adding why you want the dummy ("so I can practice") tells the AI how it'll be used, and in the footage the dummy gets hit by the thrown rock.

Bonus: a camera that follows the throw

Prompt: "Make it so that when I throw the rock, it follows it"

The camera following the rock after a throw

"It follows it" here means the camera follows the rock. After you throw, the view rides along with the rock down the street. Custom camera behavior is one of the fiddliest things to script in Roblox, and this was one sentence.

(In my build I also changed the baseplate into a cobblestone old-town street with "Make me an old design map" before this step. That's why the GIF at the top looks the way it does.)


Ideas for using this system in a real game

The same four prompts work as a starting point for lots of game types. Swap the rock and the target:

  • Dodgeball: a ball instead of a rock, other players as targets
  • Snowball fight: a snowball and a winter map
  • "Throw the noob" or ragdoll games: throw the dummy instead
  • Grenade or ability games: "make it explode when it lands" as your next prompt

Add one change per prompt, and if something breaks, you'll know which step caused it.


Do you still need to learn scripting?

For getting a working throw on screen, no. But once ForgeGUI has generated it, open the script it made and read through it. Seeing working code for a mechanic you understand is one of the fastest ways to learn Luau, and you'll be able to tweak values like throw strength yourself.


FAQ

Can you make a throwing system in Roblox without scripting?
Yes. In this build, every part came from a typed prompt: pick-up, throw, power meter, aim line and camera follow.

Is ForgeGUI free?
There's a free tier with starter credits for new accounts. Generations use credits after that.

Does it work inside Roblox Studio?
Yes, through ForgeGUI's Roblox Studio plugin.


Try it at forgegui.com: open a fresh baseplate and type the prompts above in order. I post builds like this on TikTok and YouTube at @ash.robloxdev.

Originally published on Medium.

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