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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Infinite 3D Cave in Unity

A friend and I are hoping to make a game in Unity in which you fly through an infinite 3D cave that can twist and wind in any direction (though obviously not to the point that the turns are impossible ...
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2answers
266 views

Possible to create transparency shader which doesn't stack alpha values

The image above best demonstrates what I'm trying to achieve. It's a transparent shader for objects, but wherever the objects with this shader intersect they don't add together but simply merge with ...
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0answers
109 views

SpotLight in ForwardBase pass using forward rendering

Is there anyway I can force Unity to allow me using a custom shader to render spotlights in a ForwardBase pass (using Forward Rendering Path)? For what I could see since now: Unity use and ...
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1answer
221 views

How to make game menu in Unity using only the editor?

I am trying to implement a game menu screen in which all the levels are locked initially. Just like Angry Birds. When user scores he'll be promoted the level unlocks.
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0answers
175 views

Unity not updating sprite animations (possible bug)

I have a simple animation of a foot which i want to change sprites from one sprite to another, which is seen in the following two images: now as one can see in the animation timeline there is a ...
3
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2answers
397 views

Using Behavior Trees and Events together

I am beginning to work with behavior trees and am unsure how events should be handled within the tree. Lets say we have a space game where the player is dogfighting with a handful of other ships, some ...
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2answers
358 views

Unity Grid System

I'm creating a tower defence game and I've been struggling on one of the core parts of the game. What I'm trying to do is create a plane that the user can clink on and build a tower at that location. ...
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1answer
120 views

How can I make an attached gameobject behave correctly on character flip?

I have a character that on start-up is equipped with another gameobject/prefab as a weapon, attaching it to a hand. void Start() { handFront = transform.Find ...
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1answer
708 views

How to Integrate Unity with Google Play Game Services for iPhone and Android games

I want to integrate Google Play Game Services for Apple's iOS and for Android. How can I do this efficiently?
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1answer
331 views

Finding the correct speed for AI to turn to reach goal

I have a ship that travels at max speed maxSpeed and can turn rotationSpeed degrees per second. The ship always moves in the direction it is facing which means that the faster the ship is travelling ...
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2answers
2k views

How can I make RPC function calls in Unity?

I am making a multiplayer game. I am sending score via the server and client but I want to be sure that can I call an RPC function of a script from any other script. For example, say Table_Manager as ...
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1answer
144 views

How to put basic scripting/variable changes into dialog xml files?

I have a simple XML structure for my dialog between the player and NPCs. What I'd like to do is put variable changes (and maybe other things) directly into the XML. So, for instance, if you select a ...
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2answers
597 views

Intelligently move aircraft using curves

I am trying to code a script to move an aircraft entity from point A to point B and at some point in the middle of moving have the aircraft forward vector face Point C (to fire a missile at an enemy ...
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1answer
3k views

How do I randomly spawn objects in 2D game?

How do I randomly spawn few different sprites on screen so they're not overlapping or half visible on render. The sprites should immediately start shrinking until they disappear. I've tried to ...
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2answers
3k views

Shader that “cuts” hole through all geometry

How can I create a shader that "cuts" through all geometry, only rendering the clearing background in Unity? An example: That's a prism in a huge white box-shaped room. The surface of the prism is ...
2
votes
2answers
3k views

Playing an animation relative to current Transform in unity?

I have an animation created with the built-in dope sheet. It plays correctly but I would like it to be played relative to current object transformation. For example I have a palm tree that moves its ...
2
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1answer
184 views

Adding an object viewer to a Unity Editor Window

I'm wondering if its possible to add an object viewer (For example when you import an .fbx file into unity you can see a small preview of it in the inspector) to a Unity Editor Window? I've looked ...
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2answers
1k views

How does the Unity3D entity system work?

I saw the Java Artemis Entity Component System and thought of the entity system in Unity3D. In Artemis for example you can only add one component type to each entity and the logic is not in the ...
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1answer
354 views

In Unity, how can I read the color from _LightColor0 in a shader?

I have a scene with a point light and alpha textured (RGBA) triangle strips. I want to apply the point light color with a shader. Shader "Custom/Test02" { Properties { _MainTex("Texture ...
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1answer
401 views

Increase animation speed according to the swipe speed in unity for Android

I have the animation done through Maya and brought the FBX file to unity. Here is my code to calculate the speed of the swipe: Vector2 speedMeasuredInScreenWidthsPerSecond ...
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2answers
220 views

How to know when all 2d rigid bodies have stopped in unity3d?

Is there anyway to know if all 2d rigid bodies in untiy 3d phisics world have stopped?
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1answer
1k views

InvalidOperationException when using C# DLLs with Unity3D

Description I've been attempting to use a custom DLL in Unity. I've confirmed the DLL runs correctly outside Unity. The DLL imports into Unity and when I refer to it in my scripts, I get no compiler ...
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0answers
901 views

Unity 2D - SpotLight and Shadow

I've been having some trouble in the process of creating my 2D game. Here is the thing, i want to create a light source on the top of the screen, blocked by some rocks and letting only go through some ...
2
votes
1answer
12k views

Change the sprite of a Object in Unity

Inside the script code of the the hero(object) I want add the possibility to change its sprite. So the player hits the space button and the sprite changes into the other sprite already added to the ...
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1answer
46 views

What is the actual formula to find the vertices of an animation frame in using a BVH file?

I've read this tutorial and tried many formulas to build the skeleton. I am able to build it without the rotations, but those break everything. This, for example, is a simplified code for one of my ...
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1answer
62 views

How I get the value from different class [closed]

i get error , i cant get the value from different class.. public class First1 : MonoBehaviour { private List<IFirstListener> listeners = new List<IFirstListener>(); public int ...
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1answer
4k views

Basic hierarchical component access in Unity: GetComponent vs. Find

I'm just learning to develop in Unity. One simple thing I'd like to do is change the colors of objects programmatically. I have a compound asteroid prefab object, in which the meshrenderer and ...
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1answer
1k views

Can animation parameters only be changed in scripts?

I have a very simple animation parameter in the Animator, a boolean that is "true" when a shooting animation is playing (to stop the game logic from allowing more shooting during a gun recoil ...
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1answer
952 views

How to find objects in front of my player

I am trying to find an object that is in front of my player sprite using the following code RaycastHit2D hit = Physics2D.Raycast(transform.position,Vector2.right,EnemyLayer); //EnemyLayer is the ...
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0answers
91 views

How do I load real-world map terrain? [duplicate]

I'm new to game development and want know how to make or load a terrain from OpenStreetMap or Google Maps in your current city. (I'm using Unity3D.) My idea is just load or generate a map of the ...
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1answer
5k views

How can I get multiple sprites on a Unity2D Sprite Renderer

I have a GameObject that I want to have multiple sprites. I tried adding an extra Sprite Renderer, but it tells me I can't add the same component multiple times. I'd really rather not have to have ...
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1answer
1k views

Unity objects not rotating around pivot point

Suddenly, for some reason, objects in the unity editor started rotating around their center of gravity (at least that's what I think is going on) instead of their pivot point. I tried placing the ...
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1answer
426 views

How to translate swipe gestures into rotations?

I am making a snake game. I want to rotate my snake in the direction specified by swiping on the screen, the directions are limited to orthogonals (90 degree increments). It's an android game. Can ...
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1answer
9k views

How can I translate a game object towards a position?

I am instantiating my game objects (spheres) through scripts. I want my spheres to move from one location to another. but I don't know how to do this. Update is called once per frame. Is that what I ...
2
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1answer
554 views

Unity3D How to tell when editor script is added to object

What I want is a way that an editor script can tell when it has been attached to an object in the scene. OnEnable() and Awake() only happen when you bring an object with the editor script attached ...
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1answer
105 views

Creating teams 2v2, 3v3, etc

I'm figuring out how to create games with teams. The problem is that there will be games 1v1, 2v2, and so on as well as free for all. What would be the most efficient way to do this in Unity C#? I'm ...
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1answer
681 views

How do I add a Rigid body and a box collider component to a Texture2D?

I am making a snake game. I'm basing it on a basic tutorial game, which does no collision detection, wall checking or different levels. All snake head, piece, food, even the background is made of ...
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1answer
52 views

Stopping sprties from toppling off platform

I am new to Unity and am trying to create a simple 2d platformer. I have applied a box collider to my player sprite and the floor/platform its standing on. Now when I go over the platform, it toppes ...
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2answers
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Unity 2d: How stop movement when object hit a wall

I created a square that slides on a flat ground. public class PlayerMoveScript : MonoBehaviour { float move = 0; void Start (){} void FixedUpdate () { if (move == 0) { ...
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votes
2answers
771 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
144 views

unity rts on mobile : how can units find each other as simple as possible

Situation: I have a grid of 100 by 100 tiles. each tile has a list of units that are currently standing ontop of it. in this grid 500 units of team 1 and 500 units of team 2 are randomly walking ...
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1answer
424 views

How do I make an object's y-axis align with a Vector3?

I have a golf ball on the ground, and from a raycast, I have the normal which gives me the slope of the ground by the ball. I have an object which is rendered on the HUD to show that slope to the ...
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2answers
143 views

Compute world position by walking N units along spline?

My goal is to move ahead along a spline 'x' world units, unfortunately there is no way to map spline points to world points. What I do is I iterate along the spline by a small alpha amount (say ...
4
votes
2answers
385 views

What are Unity3D Substances?

I recently was a tutorial use substances in Unity3D. I understood that a Substance is a material we can dynamically manipulate at run time, but I am still unclear about it. Could someone shed some ...
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1answer
502 views

Unity3D Multiplayer Networking

I am making a multiplayer game using Unity3D, similar to SecondLife (but focusing on a particular gameplay task). Users will be able to register/login directly in the game and their character will be ...
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2answers
2k views

Unity - 2D Wall Jumping [closed]

I'm developping a 2D platformer and i'm facing a little trouble. I'm actually trying to develop a Wall detection and the possibility to Wall Jump and go in the opposite direction. I'm able to detect ...
2
votes
4answers
951 views

(unity) move the world or the character

I'm making a game like this: https://www.youtube.com/watch?v=hO7573lphqI wherein a 3D ship is flying around on a 2D plane. From the player's perspective, the ship will stay stationary in the center ...
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2answers
812 views

Why is mesh baking causing huge performance spikes?

A couple of seconds into the gameplay on my Android device, I see huge performance spikes caused by "Mesh.Bake Scaled Mesh PhysX CollisionData" In my game, a whole level is a parent object containing ...
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1answer
215 views

How can I switch two GameObects in an array in Unity?

I'm putting together a match-3 as my first unity project and I'm having some trouble with switching two GameObjects. I thought I had it working, but I was running into strange issues. I hunted them ...
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0answers
644 views

Cross-platform ad-hoc local mobile multiplayer

I want to implement ad-hoc cross-platform (iOS, Android, and PC) device discovery for local multiplayer, like this scenario: http://www.youtube.com/watch?v=csXYZf2vGdE Multiple players, each with ...