Questions tagged [prefabs]

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Is it possible to mark a Unity prefab variant as deprecated?

I'm building a game at the moment and a classic issue has come up, of having a complicated prefab variant in use, which happens to have a fundamental problem in its design and needs to be replaced. ...
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Tree textures and properites don't follow in prefab

I'm bulding a golf course in Unity 5.2.3, and I'm trying to create a birch tree. I have all the textures and all. Just to test things out I created a tree and assigned textures of some conifer tree or ...
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1 answer
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How to get data from a Scriptable Object into a Prefab template

I made a Unity Prefab where about 5 things vary. I then made an invisible GameObject where I use Visual Scripting to hardwire the 5 differing items, in order to create the various GameObjects I need. ...
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Testing if instantiated prefab is colliding with environment

I'm trying to generate a number of prefabs in a scene where that scene will have procedurally-generated terrain objects. I have tagged each of the terrain objects with ...
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Unity Prefab icons displayed wrong

Occasionally the prefab icons are displayed wrong. It either displays another icons preview, lets say "Side_Panel_4" displays "Side_Panel_1" icon. Or like the example bellow it ...
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1 answer
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Why do I get "the object you want to instantiate is null" when I can see the prefab reference in the Inspector?

I read the solution in this post but still not able to understand it. I have a script (AdvanceWayPoint) attached to a game object ("Cube", with tag "...
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2 answers
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prefabs not aligned at same horizantal level after instantiating

I have generated a logical grid and trying to place a prefab on top of that grid. Piece is the base class for all pieces Pieces[]...
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1 answer
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How can I cache and read fields on non instantiated prefabs?

Let's say I have a very simple 2D square prefab that has a script like this attached to it: ...
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1 answer
368 views

Custom inspector values in prefab mode not save to prefab

I have a prefab with a custom GridModel component which has a custom editor. For some reason whenever I edit a value in Prefab Mode, the value doesn't save in the ...
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1 answer
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How to make random spawn objects in unity 3D

I created an infinte runner game. I need to make random spawning obstacles ON 3D. How do I randomly spawn prefabs on the X axis using a C# script?
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1 answer
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How could I put a prefab into a field of a game object using editor API in Unity?

How could I put a prefab into a field of a game object using editor API in Unity? I have a game object. It has a GameObject field. I can drag and drop a prefab from ...
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1 answer
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If I create a prefab out of an object on scene will my game take more memory in Unity?

If I create a prefab out of an object on scene will my game take more memory in Unity? I have 30 enemies on my scene. I created a prefab for every one of them. I am going to use each of the created ...
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How to pre-configure a prefab in the editor for multiple similar buttons before instantiating them

Let me explain my problem with my concrete example. I have a button prefab. A button prefab has a lot of configurations: background color, background shape, background image, text, text color, button ...
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1 answer
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Optimal Way to Create Card Templates in Unity 2D

I have a couple questions involving software architecture and best practices in Unity. Although I have some programming knowledge, I am just starting with Unity and C#, and I would like some input ...
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1 answer
93 views

How to make an upgrade a building and replace it with the Level 2 prefab?

I want to to have multiple prefabs like canon level 1 and then level 2. When the player has enough coins, they can upgrade it to level 2. I want to make a game similar to Clash of Clans so I will have ...
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1 answer
833 views

How to correctly instantiate prefab in Unity

I made a prefab and drag drop it to the Tile Prefab slot as shown in the picture In my code ...
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1 answer
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can't instantiate different objects

I'm trying to instantiate different prefabs at once. But couldn't figure out how. I tried to use Random.Range method but didn't worked for me. It instantiates only one of the prefabs. I want it to ...
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236 views

How can I make a health bar — a UI element — part of a character prefab?

Description I want my character prefabs to come with their own health bar, but I can't simply add one as part of the prefab, because it's a UI element and therefore goes into a Canvas. Potential ...
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1 answer
200 views

Prefab not working when I import maps form Tiled using Tiled2Unity

I have correctly created the map using Tiled with no errors or warnings, then i imported the package from tiled2unity, imported the map then waited few seconds and the prefab from tiled2unity appears ...
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Unity: how do I get a list of prefab tiles from the TileMap?

I'm building a 2D strategy game where I've decided to use TileMap for spaces which characters can traverse. My tiles need to be prefabs, because they will have a script attached to them to store ...
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1 answer
378 views

Unity: Sprite stretch issue

I have a simple png square 8px x 8px. In Unity I've left the pixels per unit at 100 and added the image to the scene to create a prefab of the item. I then add four items to the screen like so: ...
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1 answer
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Check if 2 objects with multiple colliders overlap using bounds

I'm writing a script which instantiates buildings in a scene, but in such a way that 2 buildings don't overlap with each other. Every building consists of approx. 10 parts, of which each has a box ...
-1 votes
1 answer
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NullReferenceException when translating instantiated prefab [duplicate]

I keep getting this error: NullReferenceException: Object reference not set to an instance of an object moveBlock.Update () (at Assets/Scripts/moveBlock.cs:27) whenever I press Play in Game or when ...
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I have 240 prefabs to scatter, what is the best way to achieve this?

I'm creating a huge city for which I've made 240 different building prefabs. Now I need to scatter those prefabs randomly with a height, width and depth and rotation randomness variation. I thought ...
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1 answer
476 views

Unity hangs when saving prefab asset

For game saving purposes, I'm keeping track of references to ScriptableObjects through a lookup table, so that I can serialize/deserialize using the SO's position in that table. I have a lot of ...
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1 answer
348 views

Using Part of prefab as script parameter

I'm trying add a weapon to Eithan - the third person character. So I want to take his hand, which is part of the prefab Eithan (the weapon location) and use it in the my Player.cs script to ...
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Prefabs scaling change also the original prefab

I want to work with a prefab as local and global variable? something like that. So my question is how to change a prefab scale without affecting the original prefab.
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1 answer
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Unity 3D platform spawning problems

I'm making an infinite runner game in Unity 3D. I have it so that platforms spawn and move backwards toward the player and they are destroyed once past the player. Over time when the platforms are ...
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1 answer
133 views

Unity: How can I control a Shadergraph effect on multiple enemies with the same prefab?

So I made a simple White Flash -> Dissolve effect with shader graph 2D, it's my 1st time using shaders. I'm controlling the effect using a float inside the shader, with: ...
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1 answer
26 views

List to hold copies of a prefab for later deletion

I'm working on a game in which obstacles are Instantiated randomly 5 to 20 units ahead of the player. When they are instantiated, I want to add them to a list so that when there are too many ...
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2 answers
921 views

Unity: I need to edit my prefab but I can't move anything inside it!

I imported a character into Unity and turned him into a prefab. I couldn't get my custom "Look-At" script to work for the eyes, which are children of the prefab I imported. So I opened the prefab and ...
2 votes
1 answer
1k views

If I don't use PrefabUtility class, how can I save my changed prefabs and build without exception?

I'm designing a racing game for my graduation project. I used PrefabUtility.SaveAsPrefabAsset to save my color change on the car prefabs, I finished the codes and it work well in Unity, but when I ...
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1 answer
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How to make collisions occur between objects using the same script?

Well what I’m trying to do is have cars travelling on the road. The cars have a trigger at the front and a hitbox at the back of the cars. What I want to happen is when the trigger hits the hitbox it ...
1 vote
1 answer
2k views

Instantiating Prefabs at run time

I'm trying to move my project to Addressables and upload assets, prefabs and screens to an archive on the server. I'm a new in Unity and this a bit challenging for me. I've prepared all prefabs for ...
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How to store the configuration of Unity prefab components during map generation?

I managed to have a basic map generation algorhytm, but now it needs some content. I generate abstract map data, which then will be used to build the map itself. When I want to generate monsters, ...
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1 vote
1 answer
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How can I insert a prefab instance programmatically inside the Canvas, in the bottom-left corner of the Canvas?

I am trying to create the Snake game in Unity, based on this video tutorial. I have also viewed this tutorial. I have created the new project with the 3D template and manually added the Canvas. I ...
-1 votes
1 answer
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How to translate prefab made of hierarchy of 3d objects

I am trying to translate a prefab of a puzzle piece made of a hierarchy of cubes but it's not working. I have tried translating the GameObject using its transform and the function Translate, it did ...
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1 answer
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Referencing Tilemap inside Grid Prefab

I have a prefab of a grid which contains 3 different tilemaps: Main, Foreground, & Background I want to reference the tilemaps inside a script of the prefab but can't figure out how to do that.....
0 votes
1 answer
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Can I add non-trees to terrain.terrainData.treeInstances on Unity 3D?

I need to create a brush in which there will be stones, poles, bushes and other elements of the environment. I bought a Prefab Brush. Whether it is possible to add the objects that I draw on the ...