I found something I can't understand. I'm only a beginner, so I thought I could use the CarController Scripts of the Car Demo for making a little driving game with different models.
the Car demo I wonder why the colliders are sub-objects and the RigidBody has "Gravity-Enabled" without falling apart.
my try to copy my model falls apart with the same configuration.
1.what's exactly my mistake?
2.How can I fix this?
3.Should I rather write a script for applying the gravity to my model?
Most likely all of your objects with Colliders have also Rigidbody component. Try removing all these components and leave only one on a root object.
Related
I am currently self-learning steering behaviors and am following this lecture I had found which gives a really good introduction about AI implementation aka https://edirlei.com/aulas/game-ai-2020/GAME_AI_Lecture_07_Steering_Behaviours_2020.html.
I've faced an issue when trying to implement the 'Seek' behavior in a 2D game environment in which the 'seek' game object does not try to move towards its target. There are no errors showing in the console but my best guess is that it's because of the use of Rigidbody in the 'SteeringBehaviorBase' class code. I've tried converting it to Rigidbody2D instead but sadly it still does not move.
For further context, I've attached the 'SteeringBehaviorBase' and 'SeekBehavior' classes onto my 'seek' game object and a circle collider on my 'seek target' game object. I've also set the reference of the seek target property in the 'SeekBehavior' code to the 'seek target' game object.
I would really appreciate anyone's help in guiding me to solve this problem.
I'm trying to build a cellular automaton in Unity, for that I created a cube as a prefab then I spawn the cubes whenever necessary.
This is, as you can probably tell, very slow, thats why I was thinking that combining all individual cubes into one GameObject after each generation would result in better performance.
How can I do this? If thats not possible I'd be very thankfull if you could give me a hint to what would be a better solution for my problem!
Context
I have in my project two elements. A player (just a cube) and some eyewears.
When the glasses aren't attached to the player, i want them to have properties of a Rigidbody. But when the eyewears are attached to the player, i want them to be a static object, so the player can process the collisions and physics.
I have tried:
DestroyElement(rigidbody) when the player pickup the eyewears. When he leaves them, i recreate the rigidbody with AddComponent
It worked nice, but in the future other elements will be attached and they will not share the same properties of rigidbody. I though maybe i could save the rigidbody instance, so when the player leaves the glasses i assign it to them. I could't.
AddComponent don't accept arguments.
Then i tried to set "kinematic mode" when my player wears the eyewears. It didn't go well, my player can't jump anymore and sometimes he glitches in the floor.
How can i resolve this?
GameObject.AddComponent does take an argument, or a generic argument (preferred):
go.AddComponent<RigidBody>();
this is also possible, but deprecated, since you lose type-safety:
go.AddComponent(typeof(RigidBody));
However, RigidBody is not meant to be added/removed, and in your case I would say that kinematic mode is the way to go... but I can't tell why you're experiencing weird results with it.
Thanks to R Astra i checked again the eyewear collisions and i found out the problem. I had enabled the Convex mesh.
The col was causing trouble because the back meshes were inside the player
So, quickly i copied that eyewear and generate a new mesh. It worked!
Thank you very much!
I have a gameobject with two sphere colliders attached. One has IsTrigger checked and the other not.
I want to execute different set of statements when collision occurs with different colliders. For example I want to play different sound for both different collisions. Is there any way to achieve it?
I tried OnTriggerEnter() but unfortunately it is called for both type of collisions since other colliding objects have triggered colliders. I just thought if we could somehow find out on which collider of the gameobject the collision has taken place we will be able to achieve it.
So is there any way to get through with this?
I have been using Unity for years and faced tons of problems like this, related to bad software design. I hope Unity guys will handle physics more carefully in future releases.
In the mean time, you can use Physics.OverlapSphere and Physics.CheckSphere to manually check if there is something that collides with your object. Remove the collider that you are using as a trigger and use these methods instead of OnTriggerEnter. This is a bit hacky, but this will do the job I think.
Make your colliders visible in the inspector (make them public or add [SerializeField] before it) and then tie in the colliders to the code that way.
Then, in your collisions, compare the colliding objects against your variables that are holding the colliders for you to keep them separate.
To detect for source trigger in OnTriggerEnter, you must use workaround with multiple gameobject hosting trigger and satellite scripts.
Allow me to link to my answer on gamedev SO:
https://gamedev.stackexchange.com/a/185095/54452
first time posting on stack and everything looks promising so far! I had a bit of a complicated question here so I'll do my best to provide exact details of what I'd like to get accomplished. I'm working with a third person controller in unity, so far everything is going great. I've dabbled with basic up and down platforms, a little glitchy but things work. Anytime my player runs through a mesh I make sure the mesh collider is working and a 'rigid-body' is attached set to Kinematic. Here's the kicker, in my game I have turning gears which the player can jump on. This is great except for the player doesn't turn with my gear, which would make sense according to my game-play. What would be the process for getting my character to interact with this animated mesh? I imagine some sort of script which my nooby mind cannot fathom at this point in my unity career. If anyone out there knows the solution to this, I would love to have any assistance, either way I'll plugging away at a solution. Thanks again!!
This is assuming that you're using the packages that ship with Unity3D, which it sounds like you are. After importing the Character Controllers package, you'll have a bunch of scripts in the Standard Assets\Character Controllers\Sources\Scripts folder, in the project hierarchy view. There's a script in there called CharacterMotor.js, attach that to the same GameObject you're running ThirdPersonController on.
Essentially this script adds more interactivity between the character and the scene. There's several methods inside this script that automatically move the character when in contact with a moving object (as long as it has a collision mesh) basically by inheriting the object's velocity.
If your gear/cog wheel has a proper collision mesh set up, adding this script to your character should be all that you require.