![]() This will listen to our inputs and trigger the SpawnAPrefab method. Lastly, to round out our scene set up, we have created a SpawnController from an empty GameObject and attached our Spawn Prefab script and Player Input component. To learn more about setting up the Character Controller and player inputs check out our article on setting up Unity’s new input system. Also, to control our objects after they are spawned, we have attached our Character Movement script and a Player Input component. This action listens for the Enter key to be pressed and will call our method.įor our prefab object, we have set up a GameObject with our MonkeyKid character sprite. To control when our OnSpawnAPrefab method is called, we have created a new Action Map with the action SpawnAPrefab. Instantiate(prefab, spawnPosition, Quaternion.identity) Instantiate(prefab, new Vector2(x,y), Quaternion.identity) If you want to get a copy of this project including the full scene and assets we used for this demonstration, check out our Unity Tips and Tricks repo on GitHub. We then spawn our prefab using Instantiate providing the GameObject we assigned, a new Vector2 created from our random X and Y, and a Quaternion.identity to zero out the rotation of our object when spawned.Įlse, if our random boolean is false, we will instantiate the prefab with our specific Vector2 position and Quaternion.identity. We have chosen these numbers so that our objects will spawn within our camera’s view. If so, we will set the X to a random number between -8 and 8 and our Y to a random number between -4 and 4. Inside of our method, create an if statement to check if our random boolean is set to true. Next, we will create a OnSpawnAPrefab method to control what happens when we want to spawn our objects. For more on why we do this check out our article on Encapsulation. We also serialize these fields, so they are viewable in the Unity editor, by giving them the property. Lastly, a boolean to change from a specific position to a random position. Another for a Vector2, to provide a position to spawn a prefab. One for a GameObject, to hold a reference to our prefab. Create a Spawn Prefab script that contains three private fields. Unity How to Spawn a Prefabįirst, to spawn a prefab we must create a script to handle the instantiation of our object. In this Tips and Tricks: Unity Spawn Prefab we are going to show you how to spawn a prefab, spawn a prefab at a position, and spawn a prefab at random locations. It can also accept a transform to parent the object to, a position in the form of a Vector, or a Quaternion for the rotation of the object when it is spawned. To spawn a prefab, you will use Unity’s instantiate method which requires, at minimum, a reference to the prefab. You could also spawn an object at a random position as an enemy or target. You can spawn an object at a position in the game world as an item, pickup, or puzzle piece. Prefabs are composed of one or more GameObjects which have been turned into an object that can be copied, as is, for reuse throughout your scene. Using Unity to spawn prefabs is a key component in developing games. Tips and Tricks: Unity Spawn a Prefab Introduction ![]()
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