Revision Difference
Collisions#563003
<cat>Code.Physics</cat>
<title>Collisions</title>
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<note>This page is for detecting collisions between non-triggers, to detect collision with triggers go to https://wiki.facepunch.com/sbox/Triggers</note>⤶
# Detecting Collisions
To detect when 2 colliders touch, both objects must have some kind of collider component attached. Then create a component on the `same GameObject` as one of these colliders and inherit from `Component, Component.ICollisionListener`⤶
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<note>No code example for now, still waiting on a fix for ragdolls to work properly with this :/</note>⤶
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To detect when an object touches, or stops touching another, both GameObjects must have a collider component attached(box, sphere, etc), with the `Is Trigger` box unchecked on both of them.⤶
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For a component to detect triggers, it must be on the `same GameObject` as one of the collider components.⤶
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<upload src="b4aa4/8dd11796d7ad41a.png" size="14526" name="image.png" />⤶
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First inherit from `Component, Component.ICollisionListener`, then implement `public void OnCollisionStart()` or `public void OnCollisionStop`, `public void` is necessary. In the parenthesis, add `Collision collision`. This sets a variable "collision" to the collision event so you can use it in code.⤶
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```cs⤶
public sealed class ColliderExample : Component, Component.ICollisionListener⤶
{⤶
public void OnCollisionStart( Collision collision )⤶
{⤶
Log.Info( $"{collision.Self} Started Touching {collision.Other}" );⤶
}⤶
public void OnCollisionStop( CollisionStop collision )⤶
{⤶
Log.Info( $"{collision.Self} Stopped Touching {collision.Other}" );⤶
}⤶
}⤶
```⤶
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