Question

当我想在Farseer中创建多边形时，我总是收到很多错误消息。

'FarseerPhysics.Common.Vertices'不包含的定义 'CreatePolygon''FarseerPhysics.Factories.BodyFactory'没有包含'Instance'的定义'physicsSimulator'的名称在当前上下文中不存在名称'triangleGeomtry'不存在存在于当前上下文中名称'GeomFactory'不存在于当前上下文名称'physicsSimulator'不存在于当前背景

有什么问题？如何在Farseer中创建多边形？

        triangleSprite = Content.Load<Texture2D>("triangle"); // Load the Sprite
        data = new uint[triangleSprite.Width * triangleSprite.Height]; 
        triangleSprite.GetData(data);
        verts = Vertices.CreatePolygon(data, triangleSprite.Width, triangleSprite.Height); 
        polygonOrigin = verts.GetCentroid(); 
        triangleBody = BodyFactory.Instance.CreatePolygonBody(physicsSimulator, verts, 3);
        triangleBody.Position = new Vector2(400, 600);
        triangleGeomtry = GeomFactory.Instance.CreatePolygonGeom(physicsSimulator, triangleBody, verts, 0);

Answer 1

继承人我是怎么做的..使用XNA 4和Farseer 3.3.1

        //List of vectors defining my custom poly
        Vector2[] vlist = 
            {
                ConvertUnits.ToSimUnits(new Vector2(25,0)) 
                ,ConvertUnits.ToSimUnits(new Vector2(15,25)) 
                ,ConvertUnits.ToSimUnits(new Vector2(-15,25)) 
                ,ConvertUnits.ToSimUnits(new Vector2(-25,0))
                ,ConvertUnits.ToSimUnits(new Vector2(-15,-10))
                ,ConvertUnits.ToSimUnits(new Vector2(15,-10))
            };

        //get farseer 'vertices' from vectors
        Vertices _shapevertices = new Vertices(vlist);

        //feed vertices array to BodyFactory.CreatePolygon to get a new farseer polygonal body
        _newBody = BodyFactory.CreatePolygon(_world, _shapevertices, _stats.Density);

我自己定义了这个形状，但我知道farseer包含的工具会根据精灵为你提供'顶点'对象，如果你想这样做的话。

纹理到多边形部分here贯穿了如何做到这一点。

如何在Farseer中创建多边形？

1 个答案: