无法将类型'System.Collections.Generic.List'隐式转换为'FarseerPhysics.Dynamics.Fixture'

Question

当我尝试将灯具附加到主体时，我总是在此行中收到此错误消息。

Fixture Newfixture = FixtureFactory.AttachCompoundPolygon(list, 1.0f, TestBody); 

无法隐式转换类型“System.Collections.Generic.List”到“FarseerPhysics.Dynamics.Fixture”

如何创建一个夹具和其附加到身体？是否有可能将多个固定装置连接到身体上？

我的代码的其余部分：

List<Vertices> list = new List<Vertices>(); 
Vector2 _origin; 
float _scale; 

uint[] data = new uint[Sprite.Width * Sprite.Height]; 
Sprite.GetData(data); 
Vertices textureVertices = PolygonTools.CreatePolygon(data, Sprite.Width, false); 
Vector2 centroid = -textureVertices.GetCentroid(); 
textureVertices.Translate(ref centroid); 
_origin = -centroid; 
textureVertices = SimplifyTools.ReduceByDistance(textureVertices, 4f); 
list = Triangulate.ConvexPartition(textureVertices, TriangulationAlgorithm.Bayazit); 
_scale = 1f; 
Vector2 vertScale = new Vector2(ConvertUnits.ToSimUnits(1)) * _scale; 
foreach (Vertices vertices in list) 
{ 
    vertices.Scale(ref vertScale); 
} 

Answer 1

Fixture Newfixture = FixtureFactory.AttachCompoundPolygon(list, 1.0f, TestBody); 

这行代码返回List<Fixture> 下面是从FixtureFactory源代码的方法签名。

public static List<Fixture> AttachCompoundPolygon(List<Vertices> list, float density, Body body) 

所以你得到一个List<Fixture>回来。如果你想在该列表中的第一项（这可能是这样，因为你假设有希望只有一个），然后

Fixture Newfixture = FixtureFactory.AttachCompoundPolygon(list, 1.0f, TestBody).First();