I'm trying to get Interaction setup in my scene for a colour memory puzzle game in Unity.
I've managed to get the scene changing when the player interacts with a button on a Canvas, so I'm trying to somehow replicate that through a puzzle.
The player can trigger the colour randomizer to display random colours (out of 4), then the player will need to 'press' the buttons on the panel in the correct order to proceed.
So far, I have a canvas overlapping the buttons so the player can interact with them. Each button has a box collider over the button element, so when the mouse is clicked or the trigger button is pressed on the Oculus controller, it should register a button press. But as soon as the hand comes into contact with the 'collider box' the following NullReferenceException Shows;
NullReferenceException: Object reference not set to an instance of an object.
Valve.VR.SteamVR_Action_Boolean_Source.UpdateValue()
I'm trying to figure out a way to reference each 'box' in code to that it knows its that specific colour being pressed. The code is there to accept keyboard input, just having trouble with the VR element.
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Overview: I am making a 2D Tower Defense game with using Tilemaps as the environment and sprites as the towers and enemies. The mouse needs
Problem: I want to trigger different events/methods depending on which tile or sprite the mouse is hovering or clicking on.
Example - Hovering over buildable tiles shows a highlighted tile, but the highlight disappears when the mouse is over a "dead" un-buildable tile.
After 10+ hours of research, I think I need to use Raycasts, 2D Colliders, and Layers to detect when the mouse hovers over or clicks on a tile/object, but I don't know how to trigger different events/methods depending on which specific layer or tag the mouse is interacting with.
Question: How do I detect and access a tile or gameobject with a mouse hover/click? and is there a way to trigger different methods depending on tags/layers I assign to the things I want to detect on hover/click?
First of all you don't need raycasts or colliders to detect mouse events. There are many ways to do this, but you can create eventListener for use on multiple objects. Also as a simple solution you can consider using scripts(includes UnityEventListeners) attached to the objects you want to control.
In my scene, I have this set-up:
Game Controller
Level Controller
Main Camera
Event System
Canvas
Player
PlayerCanvas (Render Mode is World Space)
Button
I set the PlayerCanvas into the same width and height of the button. And both of them are just small. I put Debug.Log to check everytime I press the button. But somehow, it triggers the button even if I click way off the screen. Can help to explain why is this happening. Thanks!
Note: I'm trying to add a button beside the Player so that even if the Player moves, the button will just follow.
I think your hierarchy is wrong.
Try something like
Game Controller
Level Controller
Main Camera
Player
Event System
Canvas (Screen Space - Overlay)
Button
Not sure what Player is, but I'm sure on my hierarchy Event System and Canvas are on the same level. And every button is son of Canvas. Not sure you can make multiple Cavas (you should not need it anyway).
Does anyone know a possible way for an animation that makes it so when a button gets clicked text pops up above the button that says [Clicked]. It must fade away after 3 seconds and it continues to go up. (The text will move up.)
Pretend like this is how it would look
Clicked but faded away
Clicked
Clicked
Clicked
Button
(Unity Using C#)
How about using a Prefab for this?
You'd create a Prefab with a root object and a text label as a child. Then you animate the text label upwards and fading out over three seconds using the Unity animation window.
On button click, you instantiate the prefab, make it a child of the button, and position it at the same position as your button AND auto-destroy it after 3 seconds.
Here's a code example, pretending that your prefab name is "myAnimatedText"
GameObject animatedButtonText = Instantiate(Resources.Load("myAnimatedText"), transform);
animatedButtonText.transform.position = transform.position;
Destroy(animatedButtonText, 3.0f);
Does any know or can possibly point me to some instructions or a github repository on how I can create a script where I have an object and in GoogleVr (Cardboard) if I was to gaze over an object, a tooltip would appear?
If anyone is familiar, in the Cardboard Demos under Under Arctic Journey > Learn, when you click on the fox, a tooltip appears to showcase that item along with like a brief description on it. I want to have something similar (maybe even the same thing) except just having a gaze over will automatically show it. Is this possible?
I want to have this done on multiple objects in my project so I want it created so I can easily substitute out text and whatnot.
Have a script with a reference to a World Space Canvas (WSC). The WSC will be your tooltip and be activated when you hover over the object and disabled when you don't.
You can set images and texts of the WSC through the inspector or through code if you make a reference to them.
The script should also always have its rotation set to face the player.
You can use the SetActive(bool) method to show or hide the WSC.
The UI system makes it easy to create UI that is positioned in the world among other 2D or 3D objects in the Scene.
Start by creating a UI element (such as an Image) if you don’t already have one in your scene by using GameObject > UI > Image. This will also create a Canvas for you.
Set the Canvas to World Space
Select your Canvas and change the Render Mode to World Space.
Now your Canvas is already positioned in the World and can be seen by all cameras if they are pointed at it, but it is probably huge compared to other objects in your Scene. We’ll get back to that.
https://docs.unity3d.com/Manual/HOWTO-UIWorldSpace.html
I make menu for my game (Android, C#) and i have simple problem. I want change image in button when the button is pressed. What is the best way currently? Not some preset way in Unity? Thanks
Use button animations. They can be auto generated. Change the sprite in the button press animation manually after generation.
Cost efficient way would be changing sprite object sprite field by getting the UI Image component in the button object from script.