protected override void OnTransformChanged()
{
if (rigidBody != null && !updatePropertiesWithoutUpdatingBody)
{
var bodyTransform = Transform.Value;
if (rigidBodyCreatedTransformScale != bodyTransform.Scale)
{
RecreateBody();
}
else
{
//update transform
rigidBody.Position = Physics2DUtility.Convert(bodyTransform.Position.ToVector2());
rigidBody.Rotation = -(float)MathEx.DegreeToRadian(bodyTransform.Rotation.ToAngles().Yaw);
//update constraints
if (rigidBody.JointList != null)
{
foreach (var c in GetLinkedCreatedConstraints())
{
c.RecreateConstraint();
}
}
}
}
base.OnTransformChanged();
}
public override void UpdateDataFromPhysicsEngine()
{
if (ConstraintRigid != null)
{
Transform rigidBodyTransform;
{
var rigidBody = ConstraintRigid.BodyA;
var position = Physics2DUtility.Convert(rigidBody.Position);
var rotation = -rigidBody.Rotation;
var oldT = Transform.Value;
Matrix3F.FromRotateByZ(rotation, out var mat3);
var rot2 = mat3.ToQuaternion();
//var rot2 = new Angles( 0, 0, MathEx.RadianToDegree( rot ) );
rigidBodyTransform = new Transform(new Vector3(position.X, position.Y, oldT.Position.Z), rot2);
}
{
var transformA = rigidBodyTransform.ToMatrix4() * ConstraintAFrame;
transformA.Decompose(out Vector3 translation, out Matrix3 rotation, out Vector3 scale);
var oldT = Transform.Value;
var newT = new Transform(translation, rotation.ToQuaternion(), oldT.Scale);
SetTransformWithoutUpdatingConstraint(newT);
}
}
}
protected override void OnCheckSelectionByRay(CheckSelectionByRayContext context)
{
base.OnCheckSelectionByRay(context);
if (rigidBody != null)
{
context.thisObjectWasChecked = true;
var worldData = GetPhysicsWorldData(false);
if (worldData != null)
{
if (context.viewport.CameraSettings.Projection == ProjectionType.Orthographic)
{
var point = Physics2DUtility.Convert(context.ray.Origin.ToVector2());
foreach (var fixture in rigidBody.FixtureList)
{
if (fixture.TestPoint(ref point))
{
context.thisObjectResultRayScale = 0;
break;
}
}
}
else
{
var bounds = SpaceBounds.CalculatedBoundingBox;
if (bounds.Intersects(ref context.ray, out double scale))
{
context.thisObjectResultRayScale = scale;
}
}
}
}
}
public override void UpdateDataFromPhysicsEngine()
{
if (MotionType.Value == MotionTypeEnum.Dynamic && rigidBody != null)
{
var position = Physics2DUtility.Convert(rigidBody.Position);
var rotation = -rigidBody.Rotation;
var oldT = Transform.Value;
Matrix3F.FromRotateByZ(rotation, out var mat3);
var rot2 = mat3.ToQuaternion();
//var rot2 = new Angles( 0, 0, MathEx.RadianToDegree( rot ) );
var newT = new Transform(new Vector3(position.X, position.Y, oldT.Position.Z), rot2, oldT.Scale);
try
{
updatePropertiesWithoutUpdatingBody = true;
Transform = newT;
LinearVelocity = Physics2DUtility.Convert(rigidBody.LinearVelocity);
AngularVelocity = MathEx.RadianToDegree(rigidBody.AngularVelocity);
}
finally
{
updatePropertiesWithoutUpdatingBody = false;
}
}
}
protected internal override IList <Fixture> CreateShape(Body body, Transform shapeTransform, List <Vector2> rigidBodyLocalPoints)
{
var convex = GenerateConvex();
var points = new Vector2[convex.Length];
for (int n = 0; n < points.Length; n++)
{
points[n] = (shapeTransform * new Vector3(convex[n], 0)).ToVector2();
}
var r = Rectangle.Cleared;
foreach (var p in points)
{
r.Add(p);
}
rigidBodyLocalPoints.Add(r.LeftTop);
rigidBodyLocalPoints.Add(r.RightTop);
rigidBodyLocalPoints.Add(r.LeftBottom);
rigidBodyLocalPoints.Add(r.RightBottom);
var vertices = new Vertices(points.Length);
foreach (var p in points)
{
vertices.Add(Physics2DUtility.Convert(p));
}
return(new Fixture[] { body.CreatePolygon(vertices, 0) });
}
protected override Joint OnCreateConstraint(Component_PhysicalBody2D creationBodyA, Component_PhysicalBody2D creationBodyB)
{
var anchor1 = Physics2DUtility.Convert(TransformV.Position.ToVector2());
var anchor2 = Physics2DUtility.Convert((TransformV * new Vector3(1, 0, 0)).ToVector2());
return(new DistanceJoint(creationBodyA.Physics2DBody, creationBodyB.Physics2DBody, anchor1, anchor2, true));
}
protected override Joint OnCreateConstraint(Component_PhysicalBody2D creationBodyA, Component_PhysicalBody2D creationBodyB)
{
var anchor = Physics2DUtility.Convert(TransformV.Position.ToVector2());
var angle = -MathEx.DegreeToRadian(TransformV.Rotation.ToAngles().Yaw);
var axis = Physics2DUtility.Convert(new Vector2(Math.Cos(angle), Math.Sin(angle)));
return(new PrismaticJoint(creationBodyA.Physics2DBody, creationBodyB.Physics2DBody, anchor, anchor, axis, true));
}
public Physics2DUtility.Physics2DWorldDataImpl GetPhysicsWorldData(bool canInit)
{
var scene = ParentScene;
if (scene != null)
{
return(Physics2DUtility.GetWorldData(scene, canInit));
}
return(null);
}
/////////////////////////////////////////
protected internal override IList <Fixture> CreateShape(Body body, Transform shapeTransform, List <Vector2> rigidBodyLocalPoints)
{
if (shapeTransform.IsPositionZero && shapeTransform.IsRotationIdentity)
{
var radius = Dimensions.Value * shapeTransform.Scale.ToVector2() * 0.5;
rigidBodyLocalPoints.Add(new Vector2(-radius.X, -radius.Y));
rigidBodyLocalPoints.Add(new Vector2(radius.X, -radius.Y));
rigidBodyLocalPoints.Add(new Vector2(-radius.X, radius.Y));
rigidBodyLocalPoints.Add(new Vector2(radius.X, radius.Y));
if (Math.Abs(radius.X - radius.Y) < 0.0001 && UseSmoothCircleWhenPossible)
{
return new Fixture[] { body.CreateCircle((float)radius.X, 0, new Microsoft.Xna.Framework.Vector2(0, 0)) }
}
;
else
{
return new Fixture[] { body.CreateEllipse((float)radius.X, (float)radius.Y, Edges, 0) }
};
}
else
{
var radius = Dimensions.Value * 0.5;
int edges = Edges.Value;
var points = new Vector2[edges];
for (int n = 0; n < edges; n++)
{
float angle = (float)n / (float)edges * MathEx.PI * 2;
points[n] = (shapeTransform * new Vector3(MathEx.Cos(angle) * radius.X, MathEx.Sin(angle) * radius.Y, 0)).ToVector2();
}
var r = Rectangle.Cleared;
foreach (var p in points)
{
r.Add(p);
}
rigidBodyLocalPoints.Add(r.LeftTop);
rigidBodyLocalPoints.Add(r.RightTop);
rigidBodyLocalPoints.Add(r.LeftBottom);
rigidBodyLocalPoints.Add(r.RightBottom);
var vertices = new Vertices(points.Length);
foreach (var p in points)
{
vertices.Add(Physics2DUtility.Convert(p));
}
return(new Fixture[] { body.CreatePolygon(vertices, 0) });
}
}
public static void Physics2DRayTest(this Component_Scene scene, Physics2DRayTestItem[] items)
{
var worldData = Physics2DUtility.GetWorldData(scene, false);
if (worldData != null)
{
//!!!!threading
foreach (var item in items)
{
var result = new List <Physics2DRayTestItem.ResultItem>();
var point1 = Physics2DUtility.Convert(item.Ray.Origin);
var point2 = Physics2DUtility.Convert(item.Ray.GetEndPoint());
worldData.world.RayCast((f, p, n, fr) =>
{
if (ShouldCollide(f, item))
{
var shape = f.Tag as Component_CollisionShape2D;
if (shape != null)
{
var resultItem = new Physics2DRayTestItem.ResultItem();
resultItem.Body = shape.ParentRigidBody;
resultItem.Shape = shape;
resultItem.Position = Physics2DUtility.Convert(p);
resultItem.Normal = Physics2DUtility.Convert(n);
resultItem.DistanceScale = fr;
result.Add(resultItem);
if (item.Mode == Physics2DRayTestItem.ModeEnum.One)
{
return(0);
}
}
}
return(1);
}, point1, point2);
RayTest_PostProcess(item, result);
}
}
else
{
foreach (var item in items)
{
item.Result = Array.Empty <Physics2DRayTestItem.ResultItem>();
}
}
}
/////////////////////////////////////////
protected internal override IList <Fixture> CreateShape(Body body, Transform shapeTransform, List <Vector2> rigidBodyLocalPoints)
{
if (shapeTransform.IsPositionZero && shapeTransform.IsRotationIdentity)
{
var size = Dimensions.Value * shapeTransform.Scale.ToVector2();
var sizeHalf = size * 0.5;
rigidBodyLocalPoints.Add(new Vector2(-sizeHalf.X, -sizeHalf.Y));
rigidBodyLocalPoints.Add(new Vector2(sizeHalf.X, -sizeHalf.Y));
rigidBodyLocalPoints.Add(new Vector2(-sizeHalf.X, sizeHalf.Y));
rigidBodyLocalPoints.Add(new Vector2(sizeHalf.X, sizeHalf.Y));
return(new Fixture[] { body.CreateRectangle((float)size.X, (float)size.Y, 0, new Microsoft.Xna.Framework.Vector2(0, 0)) });
}
else
{
var halfDimensions = Dimensions.Value * 0.5;
var points = new Vector2[4];
points[0] = (shapeTransform * new Vector3(-halfDimensions.X, -halfDimensions.Y, 0)).ToVector2();
points[1] = (shapeTransform * new Vector3(halfDimensions.X, -halfDimensions.Y, 0)).ToVector2();
points[2] = (shapeTransform * new Vector3(halfDimensions.X, halfDimensions.Y, 0)).ToVector2();
points[3] = (shapeTransform * new Vector3(-halfDimensions.X, halfDimensions.Y, 0)).ToVector2();
foreach (var p in points)
{
rigidBodyLocalPoints.Add(p);
}
var vertices = new Vertices(points.Length);
foreach (var p in points)
{
vertices.Add(Physics2DUtility.Convert(p));
}
return(new Fixture[] { body.CreatePolygon(vertices, 0) });
}
}
/////////////////////////////////////////
public static void Physics2DContactTest(this Component_Scene scene, Physics2DContactTestItem[] items)
{
var worldData = Physics2DUtility.GetWorldData(scene, false);
if (worldData != null)
{
foreach (var item in items)
{
var aabb = new AABB(Physics2DUtility.Convert(item.Bounds.Minimum), Physics2DUtility.Convert(item.Bounds.Maximum));
var fixtures = worldData.world.QueryAABB(ref aabb);
var result = new List <Physics2DContactTestItem.ResultItem>(fixtures.Count);
bool Contains(Component_PhysicalBody2D body, Component_CollisionShape2D shape)
{
for (int n = 0; n < result.Count; n++)
{
if (result[n].Body == body && result[n].Shape == shape)
{
return(true);
}
}
return(false);
}
PolygonShape polygonShape = null;
if (item.Convex != null)
{
var vertices = new Vertices(item.Convex.Length);
foreach (var p in item.Convex)
{
vertices.Add(Physics2DUtility.Convert(p));
}
polygonShape = new PolygonShape(vertices, 0);
}
foreach (var fixture in fixtures)
{
if (ShouldCollide(fixture, item))
{
bool skip = false;
if (polygonShape != null)
{
fixture.Body.GetTransform(out var bodyTransform);
var identity = tainicom.Aether.Physics2D.Common.Transform.Identity;
if (!Collision.TestOverlap(polygonShape, 0, fixture.Shape, 0, ref identity, ref bodyTransform))
{
skip = true;
}
}
if (!skip)
{
var shape = fixture.Tag as Component_CollisionShape2D;
if (shape != null)
{
var body = shape.ParentRigidBody;
if (!Contains(body, shape))
{
var resultItem = new Physics2DContactTestItem.ResultItem();
resultItem.Body = body;
resultItem.Shape = shape;
result.Add(resultItem);
if (item.Mode == Physics2DContactTestItem.ModeEnum.One)
{
break;
}
}
}
}
}
}
item.Result = result.ToArray();
}
}
else
{
foreach (var item in items)
{
item.Result = Array.Empty <Physics2DContactTestItem.ResultItem>();
}
}
}
/// <summary>
/// Apply an impulse at a point. This immediately modifies the velocity.
/// This wakes up the body.
/// </summary>
/// <param name="impulse">The world impulse vector, usually in N-seconds or kg-m/s.</param>
public void ApplyLinearImpulse(Vector2 impulse)
{
rigidBody?.ApplyLinearImpulse(Physics2DUtility.Convert(impulse));
}
protected internal override IList <Fixture> CreateShape(Body body, Transform shapeTransform, List <Vector2> rigidBodyLocalPoints)
{
var epsilon = 0.0001f;
//clear data
processedVertices = null;
processedIndices = null;
processedTrianglesToSourceIndex = null;
//get source geometry
if (!GetSourceData(out var sourceVertices, out var sourceIndices))
{
return(null);
}
//check valid data
if (CheckValidData)
{
if (!MathAlgorithms.CheckValidVertexIndexBuffer(sourceVertices.Length, sourceIndices, false))
{
Log.Info("Component_CollisionShape2D_Mesh: CreateShape: Invalid source data.");
return(null);
}
}
//process geometry
if (MergeEqualVerticesRemoveInvalidTriangles)
{
MathAlgorithms.MergeEqualVerticesRemoveInvalidTriangles(sourceVertices, sourceIndices, epsilon, epsilon, out processedVertices, out processedIndices, out processedTrianglesToSourceIndex);
}
else
{
processedVertices = sourceVertices;
processedIndices = sourceIndices;
}
if (ShapeType.Value == ShapeTypeEnum.Auto && ParentRigidBody.MotionType.Value == Component_RigidBody2D.MotionTypeEnum.Dynamic && MathAlgorithms.IsMeshConvex(processedVertices, processedIndices, epsilon) || ShapeType.Value == ShapeTypeEnum.Convex)
{
//convex
var points = new List <Vector2>(processedVertices.Length);
Bounds bounds = Bounds.Cleared;
foreach (var p in processedVertices)
{
var p2 = shapeTransform * new Vector3(p.ToVector2(), 0);
points.Add(p2.ToVector2());
bounds.Add(p2);
//points.Add( ( shapeTransform * new Vector3( p.ToVector2(), 0 ) ).ToVector2() );
}
var fixtures = new List <Fixture>();
{
var currentList = new Vertices(points.Count);
for (int vertex = 0; vertex < points.Count; vertex++)
{
currentList.Add(Physics2DUtility.Convert(points[vertex]));
if (currentList.Count == Settings.MaxPolygonVertices)
{
fixtures.Add(body.CreatePolygon(currentList, 0));
currentList = new Vertices();
currentList.Add(Physics2DUtility.Convert(points[0]));
currentList.Add(Physics2DUtility.Convert(points[vertex]));
}
}
if (currentList.Count >= 3)
{
fixtures.Add(body.CreatePolygon(currentList, 0));
}
}
//rigidBodyLocalPoints
{
var r = bounds.ToRectangle();
rigidBodyLocalPoints.Add(r.LeftTop);
rigidBodyLocalPoints.Add(r.RightTop);
rigidBodyLocalPoints.Add(r.RightBottom);
rigidBodyLocalPoints.Add(r.LeftBottom);
}
if (fixtures.Count != 0)
{
return(fixtures.ToArray());
}
//var points = new List<Vector2>();
//foreach( var p in processedVertices )
// points.Add( ( shapeTransform * new Vector3( p.ToVector2(), 0 ) ).ToVector2() );
//var vertices = new Vertices( points.Count );
//foreach( var p in points )
// vertices.Add( Physics2DUtility.Convert( p ) );
//if( vertices.Count > 1 )
// return new Fixture[] { body.CreatePolygon( vertices, 0 ) };
}
else
{
//chain shapes
var fixtures = new List <Fixture>();
Rectangle bounds = Rectangle.Cleared;
//!!!!
ESet <(Vector2, Vector2)> wasAdded = new ESet <(Vector2, Vector2)>();
void Add(Vector2 p1, Vector2 p2)
{
if (p1 != p2 && !wasAdded.Contains((p1, p2)) && !wasAdded.Contains((p2, p1)))
{
wasAdded.Add((p1, p2));
fixtures.Add(body.CreateEdge(Physics2DUtility.Convert(p1), Physics2DUtility.Convert(p2)));
bounds.Add(p1);
bounds.Add(p2);
}
}
for (int nTriangle = 0; nTriangle < processedIndices.Length / 3; nTriangle++)
{
var v0 = shapeTransform * processedVertices[processedIndices[nTriangle * 3 + 0]];
var v1 = shapeTransform * processedVertices[processedIndices[nTriangle * 3 + 1]];
var v2 = shapeTransform * processedVertices[processedIndices[nTriangle * 3 + 2]];
Add(v0.ToVector2(), v1.ToVector2());
Add(v1.ToVector2(), v2.ToVector2());
Add(v2.ToVector2(), v0.ToVector2());
}
//rectangle
//for( int nTriangle = 0; nTriangle < processedIndices.Length / 3; nTriangle++ )
//{
// //!!!!slowly shapeTransform *
// var v0 = shapeTransform * processedVertices[ processedIndices[ nTriangle * 3 + 0 ] ];
// var v1 = shapeTransform * processedVertices[ processedIndices[ nTriangle * 3 + 1 ] ];
// var v2 = shapeTransform * processedVertices[ processedIndices[ nTriangle * 3 + 2 ] ];
// bounds.Add( v0 );
// bounds.Add( v1 );
// bounds.Add( v2 );
//}
//var vertices = new Vertices();
//var r = bounds.ToRectangle();
//vertices.Add( Physics2DUtility.Convert( r.LeftTop ) );
//vertices.Add( Physics2DUtility.Convert( r.RightTop ) );
//vertices.Add( Physics2DUtility.Convert( r.RightBottom ) );
//vertices.Add( Physics2DUtility.Convert( r.LeftBottom ) );
//local points for space bounds calculation
rigidBodyLocalPoints.Add(bounds.LeftTop);
rigidBodyLocalPoints.Add(bounds.RightTop);
rigidBodyLocalPoints.Add(bounds.RightBottom);
rigidBodyLocalPoints.Add(bounds.LeftBottom);
return(fixtures.ToArray());
//return new Fixture[] { body.CreateLoopShape( vertices ) };
}
return(null);
}
public override void Render(ViewportRenderingContext context, out int verticesRendered)
{
verticesRendered = 0;
var context2 = context.objectInSpaceRenderingContext;
//var scene = ParentScene;
//bool show = ( scene.GetDisplayDevelopmentDataInThisApplication() && scene.DisplayPhysicalObjects ) ||
// context2.selectedObjects.Contains( this ) || context2.canSelectObjects.Contains( this ) || context2.dragDropCreateObject == this;
if (/*show && */ rigidBody != null && context.Owner.Simple3DRenderer != null)
{
var viewport = context.Owner;
var renderer = viewport.Simple3DRenderer;
//if( context2.displayPhysicalObjectsCounter < context2.displayPhysicalObjectsMax )
//{
// context2.displayPhysicalObjectsCounter++;
//draw body
{
ColorValue color;
if (MotionType.Value == MotionTypeEnum.Static)
{
color = ProjectSettings.Get.SceneShowPhysicsStaticColor;
}
else if (rigidBody.Awake)
{
color = ProjectSettings.Get.SceneShowPhysicsDynamicActiveColor;
}
else
{
color = ProjectSettings.Get.SceneShowPhysicsDynamicInactiveColor;
}
viewport.Simple3DRenderer.SetColor(color, color * ProjectSettings.Get.HiddenByOtherObjectsColorMultiplier);
Transform tr;
{
tr = Transform.Value;
var newRotation = new Angles(0, 0, tr.Rotation.ToAngles().Yaw).ToQuaternion();
tr = tr.UpdateRotation(newRotation);
}
foreach (var shape in GetComponents <Component_CollisionShape2D>(false, true, true))
{
shape.Render(viewport, tr, false, ref verticesRendered);
}
////center of mass
//if( MotionType.Value == MotionTypeEnum.Dynamic )
//{
// var center = rigidBody.LocalCenter;//CenterOfMassPosition;
// double radius = SpaceBounds.CalculatedBoundingSphere.Radius / 16;
// var item = GetCenterOfMassGeometry( (float)radius );
// var transform = Matrix4.FromTranslate( Physics2DUtility.Convert( center ) );
// context.Owner.Simple3DRenderer.AddTriangles( item.positions, item.indices, ref transform, false, true );
// //context.viewport.Simple3DRenderer.AddSphere( BulletPhysicsUtility.Convert( center ), radius, 16, true );
// //Vector3 center = Vector3.Zero;
// //double radius = 1.0;
// //rigidBody.CollisionShape.GetBoundingSphere( out center, out radius );
// //center = rigidBody.CenterOfMassPosition;
// //radius /= 16.0;
// //context.viewport.DebugGeometry.AddSphere( BulletUtils.Convert( center ), radius );
// verticesRendered += item.positions.Length;
//}
}
//draw selection
if (context2.selectedObjects.Contains(this) || context2.canSelectObjects.Contains(this))
{
ColorValue color;
if (context2.selectedObjects.Contains(this))
{
color = ProjectSettings.Get.SelectedColor;
}
else if (context2.canSelectObjects.Contains(this))
{
color = ProjectSettings.Get.CanSelectColor;
}
else
{
color = ProjectSettings.Get.SceneShowPhysicsDynamicActiveColor;
}
color.Alpha *= .5f;
viewport.Simple3DRenderer.SetColor(color, color * ProjectSettings.Get.HiddenByOtherObjectsColorMultiplier);
foreach (var shape in GetComponents <Component_CollisionShape2D>(false, true, true))
{
shape.Render(viewport, Transform, true, ref verticesRendered);
}
//context.viewport.DebugGeometry.AddBounds( SpaceBounds.CalculatedBoundingBox );
}
//display collision contacts
if (ContactsDisplay && rigidBody.ContactList != null)
{
var size3 = SpaceBounds.CalculatedBoundingBox.GetSize();
var scale = (float)Math.Min(size3.X, size3.Y) / 30;
//var scale = (float)Math.Max( size3.X, Math.Max( size3.Y, size3.Z ) ) / 40;
var edge = rigidBody.ContactList;
while (edge != null)
{
var contact = edge.Contact;
int pointCount = contact.Manifold.PointCount;
if (pointCount > 0)
{
if (pointCount > 2)
{
pointCount = 2;
}
renderer.SetColor(new ColorValue(1, 0, 0));
contact.GetWorldManifold(out _, out var points);
for (int n = 0; n < pointCount; n++)
{
var point = Physics2DUtility.Convert(points[n]);
var pos = new Vector3(point, TransformV.Position.Z);
var bounds = new Bounds(
pos - new Vector3(scale, scale, scale),
pos + new Vector3(scale, scale, scale));
renderer.AddBounds(bounds, true);
}
}
edge = edge.Next;
}
}
//}
}
}
protected override Joint OnCreateConstraint(Component_PhysicalBody2D creationBodyA, Component_PhysicalBody2D creationBodyB)
{
var anchor = Physics2DUtility.Convert(TransformV.Position.ToVector2());
return(new WeldJoint(creationBodyA.Physics2DBody, creationBodyB.Physics2DBody, anchor, anchor, true));
}
void CreateBody()
{
if (!CanCreate)
{
return;
}
duringCreateDestroy = true;
var physicsWorldData = GetPhysicsWorldData(true);
if (physicsWorldData != null)
{
if (rigidBody != null)
{
Log.Fatal("Component_RigidBody2D: CreateBody: rigidBody != null.");
}
if (!EnabledInHierarchy)
{
Log.Fatal("Component_RigidBody2D: CreateBody: !EnabledInHierarchy.");
}
var bodyTransform = Transform.Value;
var bodyTransformScale = new Transform(Vector3.Zero, Quaternion.Identity, bodyTransform.Scale);
//get shapes. calculate local transforms with applied body scaling.
var componentShapes = new List <Tuple <Component_CollisionShape2D, Transform> >();
foreach (var child in GetComponents <Component_CollisionShape2D>(false, false, true))
{
GetComponentShapesRecursive(child, bodyTransformScale * child.TransformRelativeToParent.Value, componentShapes);
}
if (componentShapes.Count > 0)
{
//use local variable to prevent double update inside properties.
Body body = new Body();
foreach (var shapeItem in componentShapes)
{
var shape = shapeItem.Item1;
var fixtures = shape.CreateShape(body, shapeItem.Item2, rigidBodyLocalPoints);
if (fixtures != null)
{
foreach (var fixture in fixtures)
{
fixture.Tag = shape;
fixture.Friction = (float)shape.Friction;
fixture.Restitution = (float)shape.Restitution;
fixture.CollisionCategories = shape.CollisionCategories;
fixture.CollidesWith = shape.CollidesWith;
fixture.CollisionGroup = (short)shape.CollisionGroup;
}
}
}
if (body.FixtureList.Count != 0)
{
body.Position = Physics2DUtility.Convert(bodyTransform.Position.ToVector2());
body.Rotation = -(float)MathEx.DegreeToRadian(bodyTransform.Rotation.ToAngles().Yaw);
body.FixedRotation = FixedRotation;
switch (MotionType.Value)
{
case MotionTypeEnum.Static: body.BodyType = BodyType.Static; break;
case MotionTypeEnum.Dynamic: body.BodyType = BodyType.Dynamic; break;
case MotionTypeEnum.Kinematic: body.BodyType = BodyType.Kinematic; break;
}
body.IsBullet = CCD;
if (MotionType.Value == MotionTypeEnum.Dynamic)
{
UpdateMassAndInertia(body);
body.SleepingAllowed = AllowSleep;
body.LocalCenter = Physics2DUtility.Convert(LocalCenter);
body.LinearDamping = (float)LinearDamping;
body.AngularDamping = (float)AngularDamping;
body.LinearVelocity = Physics2DUtility.Convert(LinearVelocity);
body.AngularVelocity = (float)MathEx.DegreeToRadian(AngularVelocity);
body.IgnoreGravity = !EnableGravity;
}
rigidBody = body;
rigidBody.Tag = this;
physicsWorldData.world.Add(rigidBody);
rigidBodyCreatedTransformScale = bodyTransform.Scale;
}
}
SpaceBoundsUpdate();
}
duringCreateDestroy = false;
}
//[Browsable( false )]
//public List<ContactsDataItem> ContactsData
//{
// get { return contactsData; }
// set { contactsData = value; }
//}
/// <summary>
/// Apply a force at a world point. If the force is not applied at the center of mass, it will generate a torque and affect the angular velocity. This wakes up the body.
/// </summary>
/// <param name="force">The world force vector, usually in Newtons (N).</param>
/// <param name="point">The world position of the point of application.</param>
public void ApplyForce(Vector2 force, Vector2 point)
{
rigidBody?.ApplyForce(Physics2DUtility.Convert(force), Physics2DUtility.Convert(point));
//rigidBody?.ApplyForce( Physics2DUtility.Convert( force ), rigidBody.Position + Physics2DUtility.Convert( point ) );
}
/// <summary>
/// Applies a force at the center of mass.
/// </summary>
/// <param name="force">The force.</param>
public void ApplyForce(Vector2 force)
{
rigidBody?.ApplyForce(Physics2DUtility.Convert(force));
}
/// <summary>
/// Apply an impulse at a point. This immediately modifies the velocity. It also modifies the angular velocity if the point of application
/// is not at the center of mass. This wakes up the body.
/// </summary>
/// <param name="impulse">The world impulse vector, usually in N-seconds or kg-m/s.</param>
/// <param name="point">The world position of the point of application.</param>
public void ApplyLinearImpulse(Vector2 impulse, Vector2 point)
{
rigidBody?.ApplyLinearImpulse(Physics2DUtility.Convert(impulse), Physics2DUtility.Convert(point));
//rigidBody?.ApplyLinearImpulse( Physics2DUtility.Convert( impulse ), rigidBody.Position + Physics2DUtility.Convert( point ) );
}