Questions tagged [collider]

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30 views

How do I get the player to collide with another object to use as a boundary?

I'm trying to make a simple game where you move a sphere from left/right and try to avoid falling cubes. If a cube touches the player (sphere), the player dies. I'm trying to set up boundaries using a ...
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1answer
40 views

Colliders slightly intersecting each other; any solution?

Consider this simple scene: In Unity, colliders slightly intersect each other. Typically, this isn't a problem. However, I want to make a custom character controller using a box collider and not a ...
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1answer
48 views

Godot: How do I get the id mask for a physics layer by name?

I would like to figure out whether a collider is in a physics layer by the name (string) I set in project settings: ...
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0answers
15 views

Elastic collisions between cubes and walls

I have a simple scene with two cubes and walls as shown bellow. The right ball starts moving with initial instant force along the x-axis and collides with the first ball and reflect off a vertical ...
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1answer
33 views

How to use a boolean to activate every item with the same tag?

I've been really stuck on this one and need some help. I've got some accessories for my player, and my goal is to have a collider, with the script attached. When the player walks into the script, the ...
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1answer
113 views

Unity's Box Collider isn't preventing an object from falling through the floor

I'm working on a little "Tower of Hanoi" AR game in Unity using Vuforia, where the game is projected onto an image target. Now I wanted to make the rings "fall" into place, so I added an invisible ...
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1answer
45 views

Vertical push doesn't let the object fall down instantly [UNITY]

An object (Wall) is continuously moving forward on the X axis with a simple script: ...
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3answers
182 views

How do you execute Trigger-collider collision only in one gameobject?

I'm trying to deal with units (generated from the same prefab) dealing damage to each other on collisions. Each Unit has both a Collider2D and a trigger on the front, that deals damage to other units ...
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1answer
53 views

Unity get reference of GameObject under another GameObject

I am trying to get reference of the object underneath my Player. I don't know if I am aproaching this correctly. Right now, I have a player simply put in the scene, like this: Then I am trying to ...
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0answers
10 views

How to add Collider to a Line Renderer in unity? [duplicate]

I have created a semicircle using a line renderer, I need to add a collider to this so whenever enemy objects hit this they get destroyed, how do I do this. Current Code ...
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0answers
27 views

2D Rigidbody with Touchscript movement in Unity won't stay in boundaries

I'm trying to make a pong game where the player has to move both paddles. They are currently set as dynamic 2D Rigidbodies (collision detection continuous) and have a box collider (is NOT trigger) ...
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1answer
28 views

How to make a collider the follows all the animations of a prefab?

I have attached a capsule collider with my player(prefab) and made a script so that when Space key is down it does the jump animation in Unity. But because of the collider not jumping with the player, ...
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1answer
18 views

'Edit Collider' exits after every adjustment

When I click the Edit Collider button I can see the collider's region and the handles to adjust it. After every adjustment (with the mouse) the collider outline disappears as Edit Collider finishes. ...
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1answer
38 views

Space game scene boundaries

I've been trying to add boundaries to my space game. I've been following this tutorial with a sphere instead of a cube, but every time I start the game and move or rotate my ship it appears outside ...
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1answer
34 views

Dragging a Rigidbody2d without moving other Rigidbodies

There are obstacles and other objects that are draggable. Colliders and dynamic rigidbodies are on the draggable object and there are colliders on the obstacles. The problem is that with the ...
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1answer
321 views

Unity: Move Collider up stairs/ramps

The bots have a simple Capsule collider which cannot tilt. Movement is applied across the horizontal axes, gravity is enabled on the rigidbody. It moves up stairs okay with steps roughly 0.2 units ...
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1answer
235 views

What is a raycast?

I use this script to build buildings on my terrain, and it works with the collider somehow. But I don't understand what it is that the raycast does to find the right place to put my building. ...
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2answers
112 views

OnTriggerEnter With First Person Controller

I'm working on an FPS for my first time. I'm creating a simple terrain and instatiating 15 cubes on my terrain. (This works fine). Each cube is named "cube" and has a static trigger collider. Here's ...
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1answer
96 views

How can I destroy trees when placing a building in an RTS?

I am developing RTS game. When I build buildings on the Terrain, any trees that were in that location end up intersecting with the building. I want to remove all trees from the building's footprint ...
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1answer
115 views

Unity Collider2D is causing the game object to disappear upon collision

I have gone through just about everything to try and isolate this bug. I have isolated it down to the enemy collider, but have not solved the issue. When my player collides with my enemy, the enemy ...
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1answer
203 views

Check If a 2D Collider Is Completely Inside / Outside of a Polygon Collider

How can I check if one 2d collider (circle, capsule, polygon etc.) is completely inside / outside of a polygon collider?
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0answers
48 views

Rotating a vehicle to match a 2D slope

I have a vehicle that needs to move on a randomly generated terrain and handle slopes. I'm not using wheels, but instead moving the vehicle with velocity. The ideal case would be if I can make the ...
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2answers
223 views

Mesh made in Blender is correct in Unity3D as a rendered mesh, but “empty” as a collider?

I created a simple stair "block" in Blender, and it's rendered correctly, but when I tick "Generate Colliders" and try to use it in a Mesh Collider, there is nothing. (Ps.: I need the real mesh as a ...
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1answer
259 views

How to know which child collider triggered in parent?

I have parent object with 3 children. Each children has one collider (BoxColliders actually) marked as triggers each one. I want to know in a OnTriggerEnter on the parent side which collider was hit. ...
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0answers
57 views

My gameObject does not move, when it returns to its original scene

I have a map where I have a 2d Ship as gameObject, which can be dragged with the finger to travel between islands and do the corresponding activities, when the player finishes playing on the island he ...
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1answer
102 views

How to change music from room to room?

In Unity 2019.3.0a2 I have a labyrinth with multiple rooms. I want the music to change when I get from one room into another. How can I do it so that music from room 1 is only hearable in room 1, and ...
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1answer
87 views

Optimizing Hitboxes

Way over 90% of the performance cost seems to be coming from colliders parented to animated bones. If I disable Motion & Animation I can spawn 20 soldiers with around 1ms cost on my mid-low end ...
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1answer
213 views

ContactFilter2D does not detect a trigger even with “use triggers” enabled

I'm Using Unity 2018.3.11f1 and I'm going crazy trying to understand why the "use triggers" variable of the ContactFilter2D is not having any effect and I'm always detecting only the non-trigger ...
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0answers
16 views

Making colliders for a user controlled stick held by character

I am making a game (Unity) in which the player controls a blind person with a stick. The stick is controlled by the mouse using the script ...
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0answers
243 views

Unity2D TileMap Collider Update Optimization

I'm currently working on a 2D tile-based side-scroller (similar to Terraria). I am using Unity's TileMap feature to draw tiles onto the screen and have my player collide with them as if they were ...
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1answer
180 views

How can I add different colliders to each body part of a character in Unity?

I have been using unity game engine for about two weeks now. And I'm very interested in 3D game development. I have been learning basics of Unity and third person games. I saw many tutorials about ...
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1answer
94 views

MoveTowards object stuck with isTrigger Collider

I am trying to have a missile seek its target once it has entered the target's trigger. The code should be fine, I think it has something to do with how the colliders are operating. I want the blue ...
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1answer
85 views

Why do my NPC's fall through the world when I select them as triggers?

I'm making a game in Unity where when the player comes into contact with an NPC it will switch scenes. I have the code for it and made sure all NPC's have rigidbody as well as using gravity and convex....
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1answer
990 views

How to transform Capsule Component in UE4?

The collision of the character with the environment only works correctly (in the eyes) when I use the original skeletal mesh. I tested it in the most varied sizes and it worked perfectly. It turns ...
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1answer
28 views

Large gap between the grabbed game object and controller

When i grab a gameobject, there is a gap between them. I have tried changing the scale of the colliders, tool handle position from global to pivot but nothing worked for me. Should i reset the pivot ...
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1answer
1k views

Unity tilemap collider not colliding with rigidbody

In the wireframe you can see the tilemap collider for this hill. The red circle falls right through however. The circle has a 2D rigidbody attached. Everything is on the Default sorting layer and on ...
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1answer
74 views

How do i prevent my player from walking through mesh collider

I have a character being moved using rigidbody.moveposition and I have an floating lowpoly island with a mesh collider. When my player walks into a steep slope or a wall, it passes right through. I ...
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0answers
39 views

Box collider has different behavior in 2 clients

I'm new to Unity. I am making my first Game and faced with problem. I have a plane and 4 gameobject that has box collider surrounded this plane. there are a few spheres as players inside of the plane....
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0answers
37 views

Is a simple PolygonCollider2D really worse than several BoxCollider2Ds?

In my scene I have very simple quadrilateral blocks, which I'm considering using PolygonCollider2D for. These blocks will be the building blocks of the scenery so ...
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0answers
126 views

Zooming in a lot without having 3D objects disappear in the Unity Editor

I'm editing the 2D colliders on some objects of my game, and I need them to be very accurate, so I'm zooming in a lot. Problem is, since my objects are 3D graphically, when I zoom in a lot they ...
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0answers
18 views

Unity: finding force vector to separate colliders in OnTriggerStay events

In Unity, I have Trigger Colliders, and catch the OnTriggerStay(Collider other) events. Once two Colliders are touching, how do I get the Force vector to make them want to separate again? In the ...
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0answers
26 views

How do I transform from local points to world when using a scroll view?

I'm using a scroll view to store my game character icons (basically an RPG). The movement system for the characters is tile based, but in game hazards could be located anywhere. So I need to detect if ...
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1answer
451 views

Unity Hit Collider GameObject is Null when Collider is Child (Line-of-Sight Detection Problem)

I'm creating line-of-sight code in Unity. It allows a radar to check whether it can see an object, or whether the object is behind an obstacle (a collider). Similarly to Unity's suggestion, I check ...
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3answers
137 views

How to add collision to this script in Unity

I Want to be able to have collision were my player can't go through objects with colliders un Unity but I don't know how to make that happen, can you please help? ...
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0answers
108 views

Line Renderer 2d Follow the edge

I am using mouse position to draw a line using line renderer 2d. What i want is when the line hits a collider it should start to draw on the edge of the collider rather than over the collider. ...
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1answer
192 views

Resize rigidbody in runtime, Box collider OnTriggerEnter not work

Scene setting: Object A: Rigidbody, kinmeatic Box collider, is trigger true. Object B: Box collider, is trigger true. Script is on Object A: ...
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1answer
115 views

Unity - OnTriggerEnter & OnTriggerExit strange behavior

I am having a trouble with OnTriggerEnter with a lot of objects. I have a NavMeshAgent moving randomly throught the scene, then I have a sphere collider inside a children to detect nearby objects. If ...
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1answer
96 views

Unity: How many Raycasts per Sphere Collider?

I understand that a simple sphere collider in Unity is a raycast in all directions with a certain length. How many Raycast events does a sphere collider trigger? At what degree increments are the rays ...
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1answer
1k views

How to give individual tiles their own collider in Unity's tilemaps?

My floor tile is a 2D drawing of a 3D platform, for lack of a better description. I want my player character to stand not on the top of the tile but a little inside it, as the red circle does in the ...
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0answers
21 views

Capsule collider triggered unexpectedly

I have an object with a capsule collider on its root, with IsTrigger=true (triggered by the player). The trigger works fine, but is also triggered unexpectedly some ...