WorldCastResult

Description

The results from performing any Cast query against the PhysicsWorld.

Use PhysicsWorld.CastGeometry or PhysicsWorld.CastRay to check whether a shape or ray will intersect other shapes as it moves through the world, for example to predict a collision before it happens.

Additional resources: PhysicsWorld.CastGeometry, PhysicsWorld.TestOverlapAABB, PhysicsAABB

 // Check whether a small falling circle will collide with objects underneath it.
 using UnityEngine;
 using Unity.U2D.Physics;
 using Unity.Collections;

 public class CastGeometryExample : MonoBehaviour
 {
     private PhysicsWorld world;

     void Start()
     {
         world = PhysicsWorld.defaultWorld;

         // Create a small falling circle.
         CircleGeometry object1Geometry = CircleGeometry.Create(0.5f, new Vector2(0.5f, 8f));
         PhysicsBody object1 = world.CreateBody(new PhysicsBodyDefinition
         {
             position = object1Geometry.center,
             type = PhysicsBody.BodyType.Dynamic
         });
         object1.CreateShape(object1Geometry);

         // Set the translation and filter for the cast.
         Vector2 translation = new Vector2(0, -10f);
         PhysicsQuery.QueryFilter filter = new PhysicsQuery.QueryFilter();

         // Cast the circle geometry through the world.
         // Use "using" to automatically dispose of the NativeArray once it goes out of scope.
         using NativeArray<PhysicsQuery.WorldCastResult> results = world.CastGeometry(object1Geometry, translation, filter, PhysicsQuery.WorldCastMode.Closest, Allocator.Temp);

         if (results.Length > 0)
         {
             Debug.Log("Collision will occur!");
         }
     }
 }

Properties