Questions tagged [collider]

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30 views

HUGE 2D worlds in Unity (like spaceflight simulator)

I am a beginner in the field of game development and I am having some doubts regarding some stuff... I am trying to build a 2D space-rocket-orbit game like the Spaceflight Simulator and I'm not able ...
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20 views

How to use Transform.lossyScale in a local reference frame?

According to the Unity docs for Transform.lossyScale, this attribute is "The global scale of the object". From what I can tell, this isn't actually an estimate of the scaling aligned with ...
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19 views

RigidBody player is moving through floor upon MovePosition

Movement Code: ...
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9 views

one collider for 2 combined object

I have an obstacle that composed of 2 game object, but when the player collides it, it gets in OnTriggerEnter twice when the obstacle have 2 different collider, which is what it should be, of course. ...
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32 views

How to detect ray cast collision on terrain gameobjects?

I made a script were an objects shoots a ray cast facing on the vertical axis and detects were the terrain is and then moves to the current terrain height wherever it is. This is so I can spawn an ...
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1answer
52 views

Scope of 'this' - Cannot read property of undefined in collider and overlap function

I am working on my first 2D game with Phaser 3. I have set up VS Code with a node.js https server and run it to deploy the game on localhost. While the game gets compiled successfully and deployed, I ...
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1answer
61 views

How big can/should wall colliders be?

Following my previous question, I now have my wall collider building tool and built many of them: Bird-view, about 17 walls selected, on the right, one is selected: Here, wall and barriers form a ...
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1answer
62 views

How could I simulate projectile collision agaisnt RTS units with primitive colliders?

For example, humans are easy they are just capsules. But for cavalry, an arrow could hit the horse or the rider. Right now cavalry are also capsule colliders for unit-unit collision, but for ...
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1answer
36 views

How to best apply colliders on a rough 3D shape

I have a 3D model for a level in unity. I want to add colliders to it. What is the best type of collider for this model? And,it is 3D
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2answers
50 views

Rigidbody not working properly

I have two objects: a player and a wall. The player is passing through the long side of the wall but it collided with the short side of the wall. I want the player to collide with whole wall. Here is ...
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1answer
28 views

Position of Gameobject Changes When Hit Play Button

I have a 3D Humanoid model. When I press play button, suddenly position of model changes and collider doesn't match with model.
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2answers
44 views

Coins are solid objects and I can't collect them

I am just starting out with Unity following along with this video, and I am stuck at roughly 1 hour and 54 minutes in: https://www.youtube.com/watch?v=pwZpJzpE2lQ It is worth noting that the video ...
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1answer
29 views

RaycastHit2D.point is acting weird when used with circlecast2d

When I make circleCast2d intersects with another circle collider, I get a RaycastHit2D.point that doesn't point at the tip of ...
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1answer
19 views

Is it possible to prevent the collider 2D outline from hiding in Unity?

Is it possible to prevent the collider 2D outline from hiding in Unity? I am creating some animations in Unity. To create animations I select different parts of a hero and move them frame by frame. ...
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1answer
31 views

Sphere - AABOX Edge detection

I am trying to implement a particle-AABOX edge collision, the below images represent, two timesteps(dt) where the spherical particle is accelerated by gravity. I have the particle center C and its ...
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1answer
21 views

Applying velocity to parent that ignores children's mass not working

I am making a VR data visualisation app in Unity and I have a parent with many children (just some primitive cubes) that I can toss around the scene by just setting the parent's rigidbody to the same ...
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1answer
65 views

Is it possible to somehow change the collider points to match sprites during the animation in Unity?

Is it possible to somehow change the collider points to match sprites during the animation in Unity? I am using the Unity built in animtion recording feature. I would like to change the points of some ...
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3answers
512 views

How to Make Border of 2D Game in Unity

I have a border by default. But, I'm having trouble detecting if my object collides with the border. I am looking for efficient ways to do this, and I am not sure what should I use. I thought using a <...
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1answer
168 views

Character falls through the Platform Effector 2D in Unity. How can I fix it?

Character falls through the Platform Effector 2D in Unity. How can I fix it? Here is the demonstration: https://imgur.com/G5YkTxa. I tried changing the Edit - Project Settings... - Physics 2D - ...
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1answer
82 views

How can I jump down from a platform in Unity?

How can I jump down from a platform in Unity? I use two 2D colliders: one is my character, another one is platform. These colliders allow my character to stand on platform. Now whenever a characters ...
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14 views

Circle collider wheels push through polygon collider car chassis

I'm trying to create a simple vehicle and make it run on a terrain (from sprites + PolygonCollider2D). I imported a chassis sprite with ...
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22 views

Endless runner character stops moving unexpectedly

I've been trying to make an endless runner game in Unity in which a player moves forward automatically and can move from x to y axis while still moving forward. I do not know how to program so I used ...
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1answer
333 views

How to align the Polygon Collider 2D in Unity to match the position of Sprite?

How to align the Polygon Collider 2D in Unity to match the position of Sprite? I have a game object. It has a Sprite Renderer with an image. Now I add a Polygon Collider 2D component to the game ...
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1answer
53 views

Why isn't my tilemap collider appearing?

I am trying to make a 2d game but my player falls through the tilemap every time. My tilemap collider doesn't seem to show up. What is going on and how do I fix this? The first image is rigidbody ...
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45 views

Unity: Have raycast penetrate through other colliders/triggers

I have a setup where an enemy prefab has a trigger box that is in front of it: Box and enemy itself is in the Enemy Layer. Now I want to project a raycast to the Player, which is in Player layer. [![...
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10 views

Sync Collider size with bones in model

I'm setting at runtime a BoxCollider2D size by taking the difference between the Y position of two bones on the model... but the size I'm getting out of this ...
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1answer
37 views

Why does my collider behave strangely after a coroutine

So I'm trying to create a simple script that is going to handle the logic for cutting down a tree I'm experiencing some strange behaviour with my script. I have a private field which holds the "...
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1answer
49 views

How to prevent an object with high velocity from passing through a collider?

Consider a simple 2D platformer. I have a BoxCollider2D on the player object and a TilemapCollider on the ground below(grid). I ...
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1answer
154 views

Two Colliders on the same GameObject for different purposes

I'm somewhat new to Unity and am trying to build a battle system. Right now, I have an attack that checks collisions with enemy objects like this: ...
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67 views

Collider inside another collider: Move the brain via mouse while being able the click the spheres

The spheres have a sphere collider on them and are clickable via this script:Clickable.cs ...
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1answer
23 views

Collision with supposedly aligned box-colliders

I am quite new to game development, and I am trying to create a top-down game with 2D sprites, but with a 3D feel to it. I managed to do so with the 2D engine by setting ...
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3answers
521 views

Jittery collisions in Unity 2D

I tried to implement a simple movement to my object. My object moves perfectly fine but I'm having issues with its collision. When I keep on moving object towards the obstacle/ground, collision are ...
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1answer
32 views

How would I detect a collision between a rigidbody and a static

I have an object with a rigid body. How would I go around detecting collisions between this object and any other object with a collider on it? I know you can enable/disable collision detection (https:/...
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274 views

(Unity) how to write my own raycasting functions

I am making a game in curved space in Unity and I am trying to figure out the best way to handle raycasting. For my purposes the Ray struct doesn't carry enough ...
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1answer
166 views

Tetris block kinematic rigidbodies pass through one another with Transform.Translate

I am trying to build a Tetris 3D game in Unity but I am stuck at getting the different blocks to interact (to detect each other, to sit one on top of the other rather than going through each other). I ...
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1answer
230 views

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 ...
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1answer
391 views

OnCollisionEnter2D not working

I am fairly new to Unity2D and am making a 2D platformer to get used to the engine. I am trying to create a platform that moves when the player jumps on it, however, on the script for the platform the ...
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1answer
236 views

Problems with gravity and box colliders in Unity 3D

I have a game character that can jump or roll in order to avoid obstacles. He is able to roll while on the ground and he can also roll while he is in the air after jumping. Everything was working fine ...
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1answer
108 views

Why is my player spinning after a collision?

I've made a very simple 2D top down prototype with Unity. This is the code I use for the player: ...
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1answer
70 views

Making pickup objects with gravity that won't push the player on collision

I am trying to create pickups, that appear after an enemy dies, and that the player can pick up, but I am running into some issues. First of all, I want the pickups to be affected by gravity, so I ...
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1answer
46 views

Which collider to use on “island” situation?

I have a 2d-top-down-unity game where the player is on an island. The shape of the island is random generated and he is not able to "escape" from the island. So which Collider should I use for ...
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1answer
65 views

Object floating on “top” of tilemap

I've made a character design and added Rigidbody 2D and Box Collider 2D to it but when I put it on top of the ground which is in ...
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1answer
84 views

Move an object with other objects connected (via joints) the right way

What is the best way to move an object with other objects connected to it via joints? Let's assume we have the following setup: A player that can move on the x and the z axis "Normally configured" ...
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0answers
173 views

Instantiated prefabs dont trigger ontriggerEnter while prefabs created not on runtime, do

I am new to unity and trying to make a bouble trouble game. I have enemy prefabs with BoxCollider with is triggered checked. I also have a shooting script. when I am trying to instantiate the enemy ...
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20 views

My colliders keep going through one another? [duplicate]

So, I have some platform with colliders and a character with a collider (everything in 2D). The problem is, while there is some noticeable effects (a certain push back) when the colliders collide, ...
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2answers
1k views

How to flatten the collider for a tilemap?

I am relatively new to game development, and am working on a simple 2D platformer. I have created a tilemap and painted some tiles for the character to walk on.. but he is getting stuck. Yes, I know ...
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1answer
52 views

How do you allow joints in a character to fall freely based on gravity?

I am building a game in Unity in which a character falls down on death. Is it possible to make the joints fall and bend based on gravity? That is to leave the joints fully dependent on gravity and ...
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1answer
532 views

How to enable the option “edit physics shape” in the Sprite Editor?

I can successfully import .png files, create tilesets, and use them in my tilemaps in Unity. Thanks to DMGregory, I just learned that there exists an option to ...
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0answers
20 views

Is there a way to organize colliders? [duplicate]

I am using a tilemap to design levels for my game in Unity. So, naturally, I need some circle/box colliders to interact with the objects in the game. I know that if I use a prefab for every tile, I ...
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0answers
26 views

Creating valid virtual creature with 3d Boxes

I'm creating this project in unity.Karl Sims, the creator of the project, published the paper describing the project. In order to create the 3d creature like in the video, I'm using 3d boxes and ...