コード例 #1
0
        public override void Update(GameSettings settings, GameTime gameTime)
        {
            Manifold manifold = new Manifold();

            CollidePolygon.CollidePolygons(ref manifold, _polygonA, ref _transformA, _polygonB, ref _transformB);
            WorldManifold.Initialize(ref manifold, ref _transformA, _polygonA.Radius, ref _transformB, _polygonB.Radius, out _, out FixedArray2 <Vector2> points, out _);

            DrawString("Point count = " + manifold.PointCount);

            DebugView.BeginCustomDraw(ref GameInstance.Projection, ref GameInstance.View);
            {
                Color     color = new Color(0.9f, 0.9f, 0.9f);
                Vector2[] v     = new Vector2[Settings.MaxPolygonVertices];
                for (int i = 0; i < _polygonA.Vertices.Count; ++i)
                {
                    v[i] = MathUtils.Mul(ref _transformA, _polygonA.Vertices[i]);
                }
                DebugView.DrawPolygon(v, _polygonA.Vertices.Count, color);

                for (int i = 0; i < _polygonB.Vertices.Count; ++i)
                {
                    v[i] = MathUtils.Mul(ref _transformB, _polygonB.Vertices[i]);
                }
                DebugView.DrawPolygon(v, _polygonB.Vertices.Count, color);
            }

            for (int i = 0; i < manifold.PointCount; ++i)
            {
                DebugView.DrawPoint(points[i], 0.1f, new Color(0.9f, 0.3f, 0.3f));
                DrawString(points[i].ToString());
            }
            DebugView.EndCustomDraw();
        }
コード例 #2
0
ファイル: Contact.cs プロジェクト: kylinzlkz/RPGTest
        /// <summary>
        /// Evaluate this contact with your own manifold and transforms.
        /// </summary>
        /// <param name="manifold">The manifold.</param>
        /// <param name="transformA">The first transform.</param>
        /// <param name="transformB">The second transform.</param>
        private void Evaluate(ref Manifold manifold, ref Transform transformA, ref Transform transformB)
        {
            switch (_type)
            {
            case ContactType.Polygon:
                CollidePolygon.CollidePolygons(ref manifold, (PolygonShape)FixtureA.Shape, ref transformA, (PolygonShape)FixtureB.Shape, ref transformB);
                break;

            case ContactType.PolygonAndCircle:
                CollideCircle.CollidePolygonAndCircle(ref manifold, (PolygonShape)FixtureA.Shape, ref transformA, (CircleShape)FixtureB.Shape, ref transformB);
                break;

            case ContactType.EdgeAndCircle:
                CollideEdge.CollideEdgeAndCircle(ref manifold, (EdgeShape)FixtureA.Shape, ref transformA, (CircleShape)FixtureB.Shape, ref transformB);
                break;

            case ContactType.EdgeAndPolygon:
                CollideEdge.CollideEdgeAndPolygon(ref manifold, (EdgeShape)FixtureA.Shape, ref transformA, (PolygonShape)FixtureB.Shape, ref transformB);
                break;

            case ContactType.ChainAndCircle:
                ChainShape chain = (ChainShape)FixtureA.Shape;
                chain.GetChildEdge(_edge, ChildIndexA);
                CollideEdge.CollideEdgeAndCircle(ref manifold, _edge, ref transformA, (CircleShape)FixtureB.Shape, ref transformB);
                break;

            case ContactType.ChainAndPolygon:
                ChainShape loop2 = (ChainShape)FixtureA.Shape;
                loop2.GetChildEdge(_edge, ChildIndexA);
                CollideEdge.CollideEdgeAndPolygon(ref manifold, _edge, ref transformA, (PolygonShape)FixtureB.Shape, ref transformB);
                break;

            case ContactType.Circle:
                CollideCircle.CollideCircles(ref manifold, (CircleShape)FixtureA.Shape, ref transformA, (CircleShape)FixtureB.Shape, ref transformB);
                break;

            default:
                throw new ArgumentException("You are using an unsupported contact type.");
            }
        }