|
public static RayCast ( System.Vector2 worldCoordA, System.Vector2 worldCoordB, RayCastCallback callback = null ) : List |
||
| worldCoordA | System.Vector2 | The starting point. |
| worldCoordB | System.Vector2 | The desired end point. |
| callback | RayCastCallback | /// The callback that is invoked for each hit on the raycast. Note that the order in which each hit occurs isn't deterministic /// and may appear random. Return -1 to ignore the curret shape, 0 to terminate the raycast, data.Fraction to clip the ray for current hit, or 1 to continue. /// |
| return | List |
|
public static List<RayCastData> RayCast(Vector2 worldCoordA, Vector2 worldCoordB, RayCastCallback callback = null)
{
if (callback == null) callback = Raycast_DefaultCallback;
Vector2 fsWorldCoordA = PhysicsConvert.ToPhysicalUnit(worldCoordA);
Vector2 fsWorldCoordB = PhysicsConvert.ToPhysicalUnit(worldCoordB);
List<RayCastData> hitData = new List<RayCastData>();
Scene.PhysicsWorld.RayCast(delegate(Fixture fixture, Vector2 pos, Vector2 normal, float fraction)
{
RayCastData data = new RayCastData(
fixture.UserData as ShapeInfo,
PhysicsConvert.ToDualityUnit(pos),
normal,
fraction);
float result = callback(data);
if (result >= 0.0f) hitData.Add(data);
return result;
}, fsWorldCoordA, fsWorldCoordB);
hitData.StableSort((d1, d2) => (int)(1000000.0f * (d1.Fraction - d2.Fraction)));
return hitData;
}
