---
title: "Astra.Components.Collider2D"
version: snapshot-2026-10-06
engineGeneration: astra-current
language: C#
status: semantic-reference
runtimeVerified: false
platformEvidence: []
url: https://astraengine.com.br/pt-br/snapshot-2026-10-06/api/astra-components-collider2d/
---

# Astra.Components.Collider2D

Colisor 2D: Caixa, círculo ou cápsula; sensor real. Família Física 2D · Formas.

**Namespace:** `Astra.Components` · **Assembly:** `Astra.Scripting` · **Tipo:** Struct

:::note[Sobre esta referência]
Assinaturas extraídas semanticamente com Roslyn/MSBuild. Isso confirma a superfície do código deste snapshot; não comprova execução no Android. As descrições vêm dos comentários da API. Membros sem explicação ainda exigem revisão editorial.
:::

## Declaração

```csharp
readonly struct Astra.Components.Collider2D
```

Colisor 2D: Caixa, círculo ou cápsula; sensor real. Família Física 2D · Formas.

Referência estudada: https://docs.godotengine.org/en/4.5/classes/class_collisionshape2d.html

**Interfaces:** `Astra.Components.IComponentFacade<Astra.Components.Collider2D>`.

Consulte também [Colisor 2D](/pt-br/snapshot-2026-10-06/componentes/astra-physics2d-collider/) para propriedades, valores iniciais, requisitos e edição em Play.

## Membros

| Membro | Categoria |
|---|---|
| [.ctor](#member-fa8699942fb6bec5) | Method |
| [OnCollisionEnter](#member-080a942c56439f6e) | Method |
| [OnCollisionExit](#member-6b7cfaeb3a20e4bf) | Method |
| [OnTriggerEnter](#member-59ba6d0803c0b8dc) | Method |
| [OnTriggerExit](#member-46d6771f2dc2f130) | Method |
| [Remove](#member-6b2920f5b5fa3da9) | Method |
| [Wrap](#member-6d4ac87b3c636943) | Method |
| [CapsuleHalfLength](#member-b1a23fa1689470c0) | Property |
| [Component](#member-68e3cb2dd6423b94) | Property |
| [Friction](#member-41fefd37b03c26a0) | Property |
| [HalfX](#member-3f2d0f34a9037f01) | Property |
| [HalfY](#member-542fdbfb787dfe2e) | Property |
| [InstanceId](#member-5c643f12b0845aed) | Property |
| [IsAlive](#member-cb56bbab0cd88ac2) | Property |
| [Object](#member-e7fcb39fd5927316) | Property |
| [OffsetX](#member-a01ef04d166db02e) | Property |
| [OffsetY](#member-91b36fe569bef360) | Property |
| [Radius](#member-12e6d6ad780a3517) | Property |
| [Restitution](#member-ad7a7b4366f743c5) | Property |
| [Sensor](#member-0fb764e9d2baca4d) | Property |
| [Shape](#member-fdbd59a1e3d3bc95) | Property |
| [TypeId](#member-40b07d8ef60e2bf5) | Property |

<h3 id="member-fa8699942fb6bec5" class="astra-member">.ctor</h3>

```csharp
public Collider2D(Astra.Component component)
```

| Parâmetro | Tipo | Contrato |
|---|---|---|
| `component` | `Astra.Component` |  |

<h3 id="member-080a942c56439f6e" class="astra-member">OnCollisionEnter</h3>

```csharp
public Astra.ComponentSubscription OnCollisionEnter(Astra.Behavior owner, System.Action<Astra.ComponentEventArgs> handler)
```

Colisão: começou. Contato sólido começou; entregue aos dois colisores. Payload: Outro objeto: objeto

| Parâmetro | Tipo | Contrato |
|---|---|---|
| `owner` | `Astra.Behavior` |  |
| `handler` | `System.Action&lt;Astra.ComponentEventArgs&gt;` |  |

<h3 id="member-6b7cfaeb3a20e4bf" class="astra-member">OnCollisionExit</h3>

```csharp
public Astra.ComponentSubscription OnCollisionExit(Astra.Behavior owner, System.Action<Astra.ComponentEventArgs> handler)
```

Colisão: terminou. Contato sólido terminou; entregue aos dois colisores. Payload: Outro objeto: objeto

| Parâmetro | Tipo | Contrato |
|---|---|---|
| `owner` | `Astra.Behavior` |  |
| `handler` | `System.Action&lt;Astra.ComponentEventArgs&gt;` |  |

<h3 id="member-59ba6d0803c0b8dc" class="astra-member">OnTriggerEnter</h3>

```csharp
public Astra.ComponentSubscription OnTriggerEnter(Astra.Behavior owner, System.Action<Astra.ComponentEventArgs> handler)
```

Sensor: entrou. Outro corpo começou a sobrepor este sensor. Payload: Outro objeto: objeto

| Parâmetro | Tipo | Contrato |
|---|---|---|
| `owner` | `Astra.Behavior` |  |
| `handler` | `System.Action&lt;Astra.ComponentEventArgs&gt;` |  |

<h3 id="member-46d6771f2dc2f130" class="astra-member">OnTriggerExit</h3>

```csharp
public Astra.ComponentSubscription OnTriggerExit(Astra.Behavior owner, System.Action<Astra.ComponentEventArgs> handler)
```

Sensor: saiu. Outro corpo deixou de sobrepor este sensor. Payload: Outro objeto: objeto

| Parâmetro | Tipo | Contrato |
|---|---|---|
| `owner` | `Astra.Behavior` |  |
| `handler` | `System.Action&lt;Astra.ComponentEventArgs&gt;` |  |

<h3 id="member-6b2920f5b5fa3da9" class="astra-member">Remove</h3>

```csharp
public void Remove()
```

Remove a instância pelo ciclo nativo; dependências e ownership podem recusar.

<h3 id="member-6d4ac87b3c636943" class="astra-member">Wrap</h3>

```csharp
public static Astra.Components.Collider2D Wrap(Astra.Component component)
```

| Parâmetro | Tipo | Contrato |
|---|---|---|
| `component` | `Astra.Component` |  |

<h3 id="member-b1a23fa1689470c0" class="astra-member">CapsuleHalfLength</h3>

```csharp
public float CapsuleHalfLength { get; set; }
```

Meia distância centros (m)

Faixa válida: 0.005 a 500.

<h3 id="member-68e3cb2dd6423b94" class="astra-member">Component</h3>

```csharp
public Astra.Component Component { get; }
```

<h3 id="member-41fefd37b03c26a0" class="astra-member">Friction</h3>

```csharp
public float Friction { get; set; }
```

Atrito

Faixa válida: 0 a 1.

<h3 id="member-3f2d0f34a9037f01" class="astra-member">HalfX</h3>

```csharp
public float HalfX { get; set; }
```

Meia largura (m)

Faixa válida: 0.005 a 500.

<h3 id="member-542fdbfb787dfe2e" class="astra-member">HalfY</h3>

```csharp
public float HalfY { get; set; }
```

Meia altura (m)

Faixa válida: 0.005 a 500.

<h3 id="member-5c643f12b0845aed" class="astra-member">InstanceId</h3>

```csharp
public ulong InstanceId { get; }
```

<h3 id="member-cb56bbab0cd88ac2" class="astra-member">IsAlive</h3>

```csharp
public bool IsAlive { get; }
```

<h3 id="member-e7fcb39fd5927316" class="astra-member">Object</h3>

```csharp
public Astra.GameObject Object { get; }
```

<h3 id="member-a01ef04d166db02e" class="astra-member">OffsetX</h3>

```csharp
public float OffsetX { get; set; }
```

Centro X (m)

Faixa válida: -1000 a 1000.

<h3 id="member-91b36fe569bef360" class="astra-member">OffsetY</h3>

```csharp
public float OffsetY { get; set; }
```

Centro Y (m)

Faixa válida: -1000 a 1000.

<h3 id="member-12e6d6ad780a3517" class="astra-member">Radius</h3>

```csharp
public float Radius { get; set; }
```

Raio (m)

Faixa válida: 0.005 a 500.

<h3 id="member-ad7a7b4366f743c5" class="astra-member">Restitution</h3>

```csharp
public float Restitution { get; set; }
```

Restituição

Faixa válida: 0 a 1.

<h3 id="member-0fb764e9d2baca4d" class="astra-member">Sensor</h3>

```csharp
public bool Sensor { get; set; }
```

Sensor sem resposta

<h3 id="member-fdbd59a1e3d3bc95" class="astra-member">Shape</h3>

```csharp
public Astra.Components.Collider2D.ShapeOption Shape { get; set; }
```

Forma

<h3 id="member-40b07d8ef60e2bf5" class="astra-member">TypeId</h3>

```csharp
public static string TypeId { get; }
```