Unity is a cross-platform game creation system that focuses on easy art pipeline process. It consists of a game engine and an integrated development environment. The game engine's scripting is built on Mono.

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'The thing you want to instantiate is null' - unity error when instantiating

I have a Game Object called 'car' in my Assets folder. I have this code in C# unity to instantiate it. GameObject car; void Start () { Vector3 position = new Vector3(5, 5, 5); ...
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2answers
891 views

Instantiate a prefab on unity and make it appear at a specified coordinate

I have a prefab called 'road'. How can I instantiate it using C# script so that the instantiated object appears at coordinate (5,5,5) ?
2
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3answers
367 views

Creating a unit selection box in Unity (2D)

I've been trying to get my head around how to create a selection box for a selected unit in a 2D top-down type game. When you click on a unit, a small box would appear around that unit based on some ...
2
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1answer
39 views

Change Tag of Instantiated Clone

In my game there is a bird flying up and a stream of containers (baskets) is moving from right to left of the screen in the bottom. Baskets are being Instantiated on right and get destroyed when they ...
5
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2answers
772 views

Unity UI square that fills width OR height

I'm trying to create a board with this requirements: It SHALL be square. It SHALL fit available width OR height. It SHALL be centered in the canvas. It MAY be wrapped into as many additional ...
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1answer
62 views

Unity - C# - Overlapping Rectangles not separating

I am Instantiating a lot of Rectangles of different sizes (ranging from 3 to 18 units) and they all have attached this script, which should cycle through all the GameObject List which contains them. ...
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2answers
103 views

Endless level support in modern engines? [closed]

Do any of the "next gen" engines support endless 3d levels? The general idea for my game will require the ability to stream a level seamlessly (no loading screens), similar to games like for example ...
4
votes
1answer
1k views

Alternatives to remove Unity splash screen after developing a game with the free version?

I developed a simple game using the free version of Unity. I want to understand how much it would cost me to remove the Unity Splash Screen to know if it's worth it. Right now Unity professional ...
2
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1answer
13k views

How can I programatically generate sprite instances in Unity?

I want to create a block-based puzzle game that generates blocks as they are required, however I cannot seem to find any good information on how to do something like this using Unity's new sprite ...
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1answer
308 views

How to create a ladder script in Unity [closed]

I tried to create a climb script and found some similar code. I would like to climb with my player on a ladder. I came up with the following: bool canClimb = false; float speed = 1; GameObject ...
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1answer
294 views

How to attach 2D object to a rope?

I was wondering, how I can attach a game object (player) to another object (a rope) when both came in contact in Unity. I think it should be done with a OnTriggerEnter2D, but doesn't know how I should ...
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1answer
2k views

Unity - Basic AI Enemy Follows Player - Prevent Flocking Of Enemies Together

I'm in the process of implementing a 2D top-down shooter game. I have a basic AI script that allows enemies to follow the player around. Currently it works fine for one enemy, but as soon as there are ...
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1answer
255 views

In Unity for Android, how do I create touchable buttons?

I'm making a test game for Android in Unity 5, and I want to add left-right control buttons like the circles below, to move an object left or right. How can I do this? Sorry if this question is ...
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1answer
51 views

Projectile Shoot three at a time

In my game there is a bird flying and on touch it throws different artifacts projectile downwards. And these artifacts should hit the containers moving right to left on the screen. Now if user keeps ...
3
votes
2answers
310 views

How to change mobile device screen size in Unity for testing?

For an experiment I need to be able to dynamically adjust the screen size of my device. I'm using a Nexus 5 (5") and want to fake the screensize to 2", 3", 4",.. See images: Is this possible ...
0
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1answer
297 views

how to Move Player on “Z” Axis 2D Movement

first im little new to unity..currently im working on 2D game mobile game.and im using Stranded Asset(Mobile) Single Joystick prefab to move Player..Currently my player move on X and Y axis. can any ...
0
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2answers
2k views

Set new forward directions based on camera position [duplicate]

I have a 3rd person camera which can rotate around the player. When I look at the back of the player and press forward, player goes forward. Then I rotate 360 around the player and "forward ...
2
votes
1answer
364 views

How to enable IntelliSense for Unity scripts in Visual Studio?

I am using Visual Studio 2013 pro and Unity 4.6. Whenever I write scripts (javascript or c#) for anything and open it up in Visual Studio, I don't get IntelliSense. How to fix this issue?
3
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2answers
1k views

C# - Separating Overlapping Rectangles

I'm trying to separate an arbitrary number of randomly sized rectangles, while still keeping them snapped to the grid, and somewhat packed together nicely. The goal is to start with something like ...
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1answer
64 views

Input.mousePosition gives a NullReferenceException

I'm trying to Add raycast shooting to my player but when I get the Vector2 mouse position it give this error NullReferenceException: Object reference not set to an instance of an object This ...
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1answer
612 views

Unity animator controller animations don't work

I'm having problems animating a character pack I purchased from unity asset store. I've placed the character in an environment and created an animator controller. After I drag the animation that to ...
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0answers
308 views

What the polycount limit for a mobile game character (heavily animated) is like if no shaders/lighting used in an otherwise simple scene?

I am making a few mobile game characters that will be heavily animated using about 15-20 bones. I am at the modeling phase of my game and just wanted an idea really. Good thing is that each level will ...
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1answer
48 views

C# Unity3D - How can I use a INT from other classes?

I have 3 Objects Capsule 1, Capsule 2 and Capsule 3. Every Capsule has a script on it for health/damage. It also contains an int for hits and points. Hits should be increased by one for every bullet ...
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2answers
581 views

Optimizing file-size of a sprite-sheet for a 2D game

I have a question regarding the method of creating a sprite-sheet so that it will not consume to much disk space and still preserve graphics quality. I was researching about this topic and found ...
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1answer
202 views

My .FBX model is not picking the .TGA texture file

I'm at a complete loss. An artist has sent me a 3D model so I can test it in Unity. This is exactly what I got: - Guy.fbx - Guy_DIF_512.tga Alright. So I move the folder into the Unity ...
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1answer
174 views

Show size / dimensions of an object in Unity Inspector

I want to see the size of the currently selected objects in the Unity Inspector, however I can't seem to find how to add it. Currently when I select a model in my scene, the Inspector panel shows info ...
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2answers
797 views

How do I save and restore an int value with PlayerPrefs?

I am stuck on how to save the player's amount of money. When I build the game in the exe as soon as I shutdown the game my money value gets lost. I want this money to be saved. I am using the ...
2
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1answer
657 views

Stretch the game to fit the game window, in Unity 5

(Desktop) I want to make it so that when the user re-sizes the game window, the game is stretched to fill the window. (Similarly, for Android) I want it to be stretched to fit the screen as well. ...
0
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1answer
71 views

Editing a new list of vector3's without changing the original list? (Unity) [closed]

I just got Vectrosity for Unity and need to make a line of all the destinations for an object. Issue is that I need to use a single list of vector3's to create the line (as far as I'm aware). I have ...
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votes
1answer
42 views

Script to change size of a cube when pressing a button [closed]

I am very new to coding and very bad at it. In my environnement there is a table, and i would like, after pressing a keyboard button, to make a cube appear. Then, by pressing another button, i would ...
0
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2answers
366 views

C# Unity3D FPS apply damage to an enemy (Weapon bullet)

I am kindly new to Unity3d and c# and I don't understand how I could let a bullet deal damage to an other object. I've seen a lot of JS tutorials but no for C#. I've tried to use them, but it wont ...
2
votes
1answer
194 views

3d compute shaders in order access

I'm working on a compute shader for a 3d texture where I want to evaluate pixels in a specific order, is there any way to do this? let's say that I have made a texture using the following code; tex = ...
0
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1answer
123 views

After collision of two objects change the sprite and move in its direction

I've searched a lot for this question but there was no answer that could solve the problem I'm having. I'm new to unity and a very naive developer.I'm making a game in unity using c# and it's like a ...
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1answer
100 views

How to make a textured tree model outside of unity that can be used in unity

So I am trying to make a 3d model of a tree that is textured that can be used in unity. So far I have tried two separate ways to do this and they both didn't work. The first time I used blender's tree ...
0
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1answer
98 views

Rotate camera keeping player not in the middle

Here I have a 2D top down game. Currently the camera is set on the player position. The player constantly points to mouse position. I want to modify this setup having the camera to be set slightly ...
0
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2answers
254 views

onCollisionEnter2D not behaving as expected

I have two game objects. They both have a Rigid Body 2D and a Box Collider 2D components. One of them also has script component. Below is the full script using UnityEngine; using System.Collections; ...
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1answer
110 views

How can I add an animation curve to an object with no animations?

I want to scale text in different ways over time. I figured the best way to do this would be an animation curve. It turns out I need an actual animation clip just to create this curve. My question ...
1
vote
1answer
200 views

Random, Infinite Terrain Generation [closed]

I'm trying to generate random terrain for my game (In Unity3D, C#). All I need is water and grass. No height to it (no mountains or hills.) I'd preferably like to do it by placing individual cubes. On ...
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0answers
79 views

Different Screen Sizes and Camera in Unity

Now I know that no matter what the screen size is the camera will keep its height, so no worries about that. My question is, is there a way to manipulate the camera, either its orthographic size, or ...
1
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1answer
153 views

Tile Map Shader?

I'm trying to write a shader in unity that will take tiles from a sprite sheet and draw them onto a tile map. I'm new to shaders so this might be totally wrong, I think it might just be a math error ...
3
votes
1answer
3k views

How to correctly draw a line in Unity

I'm working on a game which requires me to draw a few lines from a single point that is more formally said Given point A with coordinates x,y I draw n lines where the i-th line has the coordinates ...
0
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1answer
401 views

Unity3d webplayer failed to download data file

When testing my game web builds on localhost, I get the error "Failed to download data file". The game data file is correctly placed, and the page loads fine, it just wont download the plugin, or ...
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0answers
42 views

Grab all tiles within a radius?

I'm working on a 2D tile based game. I want NPC's to be able to destroy tiles, and ideally I would have a function, which takes a central x,y and then based upon a circular area from that point ...
0
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2answers
53 views

unity2D Top-Dow Mobile rigibody2D

im using this code for my 2D TopDown mobile player movement.but when i move player With UI Image buttons player keep moving.it didnt stop.and also player starting of move he is very slow. the he ...
2
votes
1answer
44 views

How can I prevent seams when attempting to create a skybox for Unity5?

After following the documentation for how to create a skybox, seams are appearing around all sides of my 6 textures (sorry for faintness of image): There are no active lights in my scene. What am I ...
2
votes
2answers
199 views

Unity messes up the fileIDs

I'm working in a team of three people on a 2D game, and Unity recently has been messing up the fileID on many sprites: - m_Sprite: {fileID: 21300000, guid: 6186fa4d068aae8418d9520f658d1ee6, type: 3} ...
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0answers
161 views

Unity3D Mobile System Fonts | Include Font Data | and Licensing

Working with type for Unity mobile apps: I'm struggling to figure out how to work with type when developing / publishing a unity mobile app. Here's my thought process, this isn't my question but if ...
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1answer
485 views

GUI Label shows on screen when object is out of view?

I have GUI Labels over NPCs in my game, and the labels display their name above their head. But when I walk away and go somewhere else, their names stay on screen like it's mirrored or something? ...
0
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1answer
163 views

How to check a value from the last frame, while using events in Unity

What I am trying to do is check if a value has changed from the last frame, while using events. Typically I could use threading to my advantage and have a check at the bottom of Update() to see if a ...
0
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1answer
60 views

How can I rotate a Transform over a specified time in a single line of code? [duplicate]

How can I rotate a Transform over a specified time in a single line of code? I have had a lot of trouble with this in the past. I wrote a script which rotates a Transform by a specified rotation ...