private static void CreateBullets(Body ship)
{
Func<Vector2, Body> createBullet = pos =>
{
var body = new Body(world);
body.BodyType = BodyType.Dynamic;
body.IsBullet = true;
var shape = new FarseerCircleShape(0.15f / 4, 1);
body.CreateFixture(shape);
body.Position = ship.Position + ship.GetWorldVector(pos);
body.Rotation = ship.Rotation;
body.ApplyForce(body.GetWorldVector(new Vector2(0.0f, -15f)));
body.OnCollision += (a, b, contact) =>
{
world.RemoveBody(body);
return false;
};
return body;
};
createBullet(new Vector2(-0.575f, -0.20f));
createBullet(new Vector2(0.575f, -0.20f));
}
private SensorTest()
{
{
Body ground = BodyFactory.CreateBody(World);
{
EdgeShape shape = new EdgeShape(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
ground.CreateFixture(shape);
}
{
CircleShape shape = new CircleShape(5.0f, 1);
shape.Position = new Vector2(0.0f, 10.0f);
_sensor = ground.CreateFixture(shape);
_sensor.IsSensor = true;
}
}
{
CircleShape shape = new CircleShape(1.0f, 1);
for (int i = 0; i < Count; ++i)
{
_touching[i] = false;
_bodies[i] = BodyFactory.CreateBody(World);
_bodies[i].BodyType = BodyType.Dynamic;
_bodies[i].Position = new Vector2(-10.0f + 3.0f * i, 20.0f);
_bodies[i].UserData = i;
_bodies[i].CreateFixture(shape);
}
}
}
public void LoadContent(ContentManager content, World world, Vector2 position, Vector2 size)
{
body = BodyFactory.CreateRectangle(world, size.X, size.Y, 1f);
body.FixedRotation = true;
body.FixtureList[0].UserData = 9000;
body.Position = ConvertUnits.ToSimUnits(position);
body.BodyType = BodyType.Dynamic;
CircleShape circle1 = new CircleShape(size.X / 4, 1f);
CircleShape circle2 = new CircleShape(size.Y / 6, 1f);
CircleShape circle3 = new CircleShape(size.Y / 6, 1f);
circle1.Position = new Vector2(0, -size.Y / 3);
circle2.Position = new Vector2(-1.5f * size.X / 5, -size.Y / 10);
circle3.Position = new Vector2(-0.4f * size.X / 5, -size.Y / 10);
head = body.CreateFixture(circle1);
hands[0] = body.CreateFixture(circle2);
hands[1] = body.CreateFixture(circle3);
head.UserData = (int)10000;
hands[0].UserData = (int)11000;
hands[1].UserData = (int)11000;
image.LoadContent(content, "Graphics/tezka", Color.White, position);
image.ScaleToMeters(size);
image.position = ConvertUnits.ToDisplayUnits(body.Position);
}
private static void CreateBullets(Body ship)
{
Func <Vector2, Body> createBullet = pos =>
{
var body = new Body(world);
body.BodyType = BodyType.Dynamic;
body.IsBullet = true;
var shape = new FarseerCircleShape(0.15f / 4, 1);
body.CreateFixture(shape);
body.Position = ship.Position + ship.GetWorldVector(pos);
body.Rotation = ship.Rotation;
body.ApplyForce(body.GetWorldVector(new Vector2(0.0f, -15f)));
body.OnCollision += (a, b, contact) =>
{
world.RemoveBody(body);
return(false);
};
return(body);
};
createBullet(new Vector2(-0.575f, -0.20f));
createBullet(new Vector2(0.575f, -0.20f));
}
private OneSidedPlatformTest()
{
//Ground
BodyFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
// Platform
{
Body body = BodyFactory.CreateBody(World);
body.Position = new Vector2(0.0f, 10.0f);
PolygonShape shape = new PolygonShape(1);
shape.SetAsBox(3.0f, 0.5f);
_platform = body.CreateFixture(shape);
_top = 10.0f + 0.5f;
}
// Actor
{
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(0.0f, 12.0f);
_radius = 0.5f;
CircleShape shape = new CircleShape(_radius, 20);
_character = body.CreateFixture(shape);
body.LinearVelocity = new Vector2(0.0f, -50.0f);
}
}
private CircleBenchmarkTest()
{
Body ground = BodyFactory.CreateBody(World);
// Floor
EdgeShape ashape = new EdgeShape(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
ground.CreateFixture(ashape);
// Left wall
ashape = new EdgeShape(new Vector2(-40.0f, 0.0f), new Vector2(-40.0f, 45.0f));
ground.CreateFixture(ashape);
// Right wall
ashape = new EdgeShape(new Vector2(40.0f, 0.0f), new Vector2(40.0f, 45.0f));
ground.CreateFixture(ashape);
// Roof
ashape = new EdgeShape(new Vector2(-40.0f, 45.0f), new Vector2(40.0f, 45.0f));
ground.CreateFixture(ashape);
CircleShape shape = new CircleShape(1.0f, 1);
for (int i = 0; i < XCount; i++)
{
for (int j = 0; j < YCount; ++j)
{
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(-38f + 2.1f * i, 2.0f + 2.0f * j);
body.CreateFixture(shape);
}
}
}
public ComputerControlledTank(
ISoundManager soundManager,
World world,
Collection<IDoodad> doodads,
Team team,
Vector2 position,
float rotation,
Random random,
DoodadFactory doodadFactory,
IEnumerable<Waypoint> waypoints)
: base(soundManager, world, doodads, team, position, rotation, doodadFactory)
{
this.world = world;
this.random = random;
this.states = new Dictionary<Type, ITankState>();
this.states.Add(typeof(MovingState), new MovingState(world, this.Body, this, waypoints, random));
this.states.Add(typeof(AttackingState), new AttackingState(world, this.Body, this));
this.states.Add(typeof(TurningState), new TurningState(this.Body, this));
this.currentState = this.states[typeof(MovingState)];
this.currentState.StateChanged += this.OnStateChanged;
this.currentState.NavigateTo();
this.sensor = BodyFactory.CreateBody(world, this.Position);
var shape = new CircleShape(6, 0);
Fixture sensorFixture = this.sensor.CreateFixture(shape);
sensorFixture.Friction = 1f;
sensorFixture.IsSensor = true;
sensorFixture.CollisionCategories = PhysicsConstants.SensorCategory;
sensorFixture.CollidesWith = PhysicsConstants.PlayerCategory | PhysicsConstants.ObstacleCategory |
PhysicsConstants.MissileCategory;
}
public Ship(World world, SpawnData spawn, int id)
{
Ball = null;
Id = id;
IsThrusting = false;
IsReversing = false;
IsBoosting = false;
IsLeftTurning = false;
IsRightTurning = false;
IsShooting = false;
IsBlocked = false;
IsBlockedFrame = false;
Color = spawn.Color;
var body = new Body(world);
body.Rotation = FMath.Atan2(-spawn.Position.Y, -spawn.Position.X);
body.Position = spawn.Position;
var shape = new CircleShape(radius, 1f);
body.BodyType = BodyType.Dynamic;
body.FixedRotation = true;
Fixture = body.CreateFixture(shape);
Fixture.Restitution = restitution;
var bodyGravity = new Body(world);
bodyGravity.Position = spawn.Position;
var shapeGravity = new CircleShape(radiusGravity, 1f);
bodyGravity.FixedRotation = true;
FixtureGravity = bodyGravity.CreateFixture(shapeGravity);
FixtureGravity.IsSensor = true;
}
private bool LoadCollider()
{
/* find a mesh component to create box from */
var meshComponent = this.GameObject.Components.FirstOrDefault(c => c is MeshComponent) as MeshComponent;
if (meshComponent == null)
{
return false;
}
if (!meshComponent.IsLoaded) meshComponent.Load();
float maxExtend = float.MinValue;
foreach (var vertex in meshComponent.Vertices)
{
if (vertex.X * GameObject.Scale.X > maxExtend) maxExtend = vertex.X * GameObject.Scale.X;
if (vertex.Y * GameObject.Scale.Y > maxExtend) maxExtend = vertex.Y * GameObject.Scale.Y;
if (vertex.Z * GameObject.Scale.Z > maxExtend) maxExtend = vertex.Z * GameObject.Scale.Z;
}
float max = maxExtend;
CollisionShape = new CircleShape(maxExtend, 1.0f);
return true;
}
private bool LoadCollider()
{
/* find a mesh component to create box from */
var meshComponent = this.GameObject.Components.FirstOrDefault(c => c is MeshComponent) as MeshComponent;
if (meshComponent == null)
{
return false;
}
if (!meshComponent.IsLoaded) meshComponent.Load();
Vector2 vMin = new Vector2(float.MaxValue, float.MaxValue);
Vector2 vMax = new Vector2(float.MinValue, float.MinValue);
foreach (var vertex in meshComponent.Vertices)
{
if (vertex.X * GameObject.Scale.X < vMin.X) vMin.X = vertex.X * GameObject.Scale.X;
if (vertex.X * GameObject.Scale.X > vMax.X) vMax.X = vertex.X * GameObject.Scale.X;
if (vertex.Y * GameObject.Scale.Y < vMin.Y) vMin.Y = vertex.Y * GameObject.Scale.Y;
if (vertex.Y * GameObject.Scale.Y > vMax.Y) vMax.Y = vertex.Y * GameObject.Scale.Y;
}
Radius = (vMax.X - vMin.X) / 2.0f;
CollisionShape = new CircleShape(Radius, 15.0f);
return true;
}
public Missile(
ISoundManager soundManager,
World world,
Collection<IDoodad> doodads,
int numberOfBounces,
Team team,
Vector2 position,
float rotation,
DoodadFactory doodadFactory)
{
this.soundManager = soundManager;
this.doodadFactory = doodadFactory;
this.world = world;
this.doodads = doodads;
this.numberOfBounces = numberOfBounces;
this.body = BodyFactory.CreateBody(world, position, this);
this.body.BodyType = BodyType.Dynamic;
this.body.FixedRotation = true;
CircleShape shape = new CircleShape(5 / Constants.PixelsPerMeter, 0.1f);
Fixture fixture = body.CreateFixture(shape);
fixture.Restitution = 1;
fixture.Friction = 0;
fixture.CollisionCategories = PhysicsConstants.MissileCategory;
fixture.CollidesWith = PhysicsConstants.EnemyCategory | PhysicsConstants.PlayerCategory |
PhysicsConstants.ObstacleCategory | PhysicsConstants.MissileCategory |
PhysicsConstants.SensorCategory;
obstacleCollisionCtr = 0;
Vector2 force = new Vector2((float)Math.Cos(rotation), (float)Math.Sin(rotation)) * 3;
this.body.ApplyForce(force);
}
protected Bullet(Ship parent, Vector2 offset, Vector2 speed, string texture)
: base(parent, texture, parent.Size)
{
Sprite.Origin = new Vector2f(Sprite.Texture.Size.X / 2f, 0);
#region Body Initialize
Body = new Body(State.World);
Body.BodyType = BodyType.Dynamic;
Body.IsBullet = true;
var shape = new CircleShape((0.15f / 4) * parent.Size, 0);
Body.CreateFixture(shape);
Body.Position = parent.Body.Position + parent.Body.GetWorldVector(offset);
Body.Rotation = parent.Body.Rotation;
Body.OnCollision += (a, b, contact) =>
{
if (!Collision(a, b, contact))
return false;
Dead = true;
return false;
};
Body.LinearVelocity = Parent.Body.LinearVelocity + Parent.Body.GetWorldVector(speed);
Body.UserData = this;
#endregion
}
private void onGridSizeChanged(object sender, SizeChangedEventArgs e) {
Debug.WriteLine("width: " + LayoutRoot.ActualWidth + " height: " + LayoutRoot.ActualHeight);
if (ball == null) {
float width = (float)LayoutRoot.ActualWidth;
float height = (float)LayoutRoot.ActualHeight;
ballBody = BodyFactory.CreateBody(world, new Vector2(ConvertUnits.ToSimUnits(width / 2f), ConvertUnits.ToSimUnits(height / 2f)));
ballBody.BodyType = BodyType.Dynamic;
ballBody.LinearDamping = 1f;
CircleShape circleShape = new CircleShape(ConvertUnits.ToSimUnits(8f), 1f);
Fixture fixture = ballBody.CreateFixture(circleShape);
fixture.OnCollision += OnBalCollision;
ball = new Ball(canvas, 8, new System.Windows.Point(width / 2f, height / 2f));
}
if (level == null) {
level = new Level(currentLevel, canvas);
Body wallBody;
System.Windows.Point position;
foreach (Wall wall in level.getWalls()) {
position = wall.getPosition();
wallBody = BodyFactory.CreateRectangle(
world,
ConvertUnits.ToSimUnits(wall.getWidth()),
ConvertUnits.ToSimUnits(wall.getHeight()),
0.001f,
new Vector2(ConvertUnits.ToSimUnits(position.X + wall.getWidth() / 2f), ConvertUnits.ToSimUnits(position.Y + wall.getHeight() / 2f))
);
wallBody.Restitution = 0.25f;
}
ballBody.Position = new Vector2(ConvertUnits.ToSimUnits(level.getStart().X), ConvertUnits.ToSimUnits(level.getStart().Y));
ball.setPosition(new System.Windows.Point(ConvertUnits.ToDisplayUnits(ballBody.Position.X), ConvertUnits.ToDisplayUnits(ballBody.Position.Y)));
}
}
public override void LoadContent(World world, ContentManager content, Vector2 position, PhysicsScene physicsScene)
{
base.LoadContent(world, content, position, physicsScene);
Vector2 size = this.size * sizeRatio;
CircleShape circle1 = new CircleShape(0.1f, 1f);
CircleShape circle2 = new CircleShape(0.1f, 1f);
CircleShape circle3 = new CircleShape(0.1f, 1f);
CircleShape circle4 = new CircleShape(0.1f, 1f);
circle1.Position = new Vector2(-((size.X / 2) + 0.2f), (size.Y + 0.1f) / 2);
circle2.Position = new Vector2((size.X / 2) + 0.2f, (size.Y + 0.1f) / 2);
circle3.Position = new Vector2(-((size.X / 2) + 0.2f), (size.Y - 0.3f) / 2);
circle4.Position = new Vector2((size.X / 2) + 0.2f, (size.Y - 0.3f) / 2);
sensors[0] = body.CreateFixture(circle1, (int)-(100 + id));
sensors[1] = body.CreateFixture(circle2, (int)-(200 + id));
sensors[2] = body.CreateFixture(circle3, (int)-(300 + id));
sensors[3] = body.CreateFixture(circle4, (int)-(400 + id));
sensors[0].IsSensor = true;
sensors[1].IsSensor = true;
sensors[2].IsSensor = true;
sensors[3].IsSensor = true;
}
public static Fixture AttachCircle(float radius, float density, Body body, object userData)
{
if (radius <= 0)
throw new ArgumentOutOfRangeException("radius", "Radius must be more than 0 meters");
CircleShape circleShape = new CircleShape(radius, density);
return body.CreateFixture(circleShape, userData);
}
public override Shape Clone()
{
CircleShape shape = new CircleShape();
shape.ShapeType = ShapeType;
shape.Radius = Radius;
shape.Position = Position;
return shape;
}
public static Fixture AttachCircle( float radius, float density, Body body, Vector2 offset, object userData = null )
{
if( radius <= 0 )
throw new ArgumentOutOfRangeException( nameof( radius ), "Radius must be more than 0 meters" );
var circleShape = new CircleShape( radius, density );
circleShape.position = offset;
return body.createFixture( circleShape, userData );
}
private ControllerTest()
{
//Ground
BodyFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
//Create the gravity controller
GravityController gravity = new GravityController(20);
gravity.DisabledOnGroup = 3;
gravity.EnabledOnGroup = 2;
gravity.DisabledOnCategories = Category.Cat2;
gravity.EnabledOnCategories = Category.Cat3;
World.AddController(gravity);
Vector2 startPosition = new Vector2(-10, 2);
Vector2 offset = new Vector2(2);
//Create the planet
Body planet = BodyFactory.CreateBody(World);
planet.Position = new Vector2(0, 20);
CircleShape planetShape = new CircleShape(2, 1);
planet.CreateFixture(planetShape);
//Add the planet as the one that has gravity
gravity.AddBody(planet);
//Create 10 smaller circles
for (int i = 0; i < 10; i++)
{
Body circle = BodyFactory.CreateBody(World);
circle.BodyType = BodyType.Dynamic;
circle.Position = startPosition + offset * i;
circle.SleepingAllowed = false;
CircleShape circleShape = new CircleShape(1, 0.1f);
Fixture fix = circle.CreateFixture(circleShape);
fix.CollisionCategories = Category.Cat3;
fix.CollisionGroup = 2;
if (i == 4)
{
circle.ControllerFilter.IgnoreController(ControllerType.GravityController);
}
if (i == 5)
{
fix.CollisionCategories = Category.Cat2;
}
if (i == 6)
{
fix.CollisionGroup = 3;
}
}
}
public override Shape Clone()
{
CircleShape shape = new CircleShape();
shape._radius = Radius;
shape._density = _density;
shape._position = _position;
shape.ShapeType = ShapeType;
shape.MassData = MassData;
return shape;
}
public override void Start()
{
m_params = Engine.AssetManager.GetAsset <BallParameters>("Game/Ball.lua::Ball");
m_properties = new BallProperties();
m_effects = new List <BallEffect>();
m_bodyCmp = new RigidBodyComponent();
FarseerPhysics.Collision.Shapes.CircleShape bodyShape = new FarseerPhysics.Collision.Shapes.CircleShape(ConvertUnits.ToSimUnits(m_params.Content.Radius), 1.0f);
Fixture fix = new Fixture(m_bodyCmp.Body, bodyShape);
m_bodyCmp.Body.AngularDamping = m_params.Content.Physic.AngularDamping;
m_bodyCmp.Body.Mass = m_params.Content.Physic.Mass;
m_bodyCmp.Body.LinearDamping = m_params.Content.Physic.LinearDamping;
m_bodyCmp.Body.Restitution = m_params.Content.Physic.Restitution;
m_bodyCmp.Body.IsBullet = true;
m_bodyCmp.Body.CollisionCategories = (Category)CollisionType.Gameplay | (Category)CollisionType.Ball;
Owner.Attach(m_bodyCmp);
if (Game.Arena.ColorScheme.Dark == true)
{
m_ballSprite = Sprite.Create("Graphics/ballSprite.lua::SpriteDark");
}
else
{
m_ballSprite = Sprite.Create("Graphics/ballSprite.lua::Sprite");
}
Owner.Attach(new SpriteComponent(m_ballSprite, "ArenaOverlay9"));
m_ballBashSprite = Sprite.Create("Graphics/ballSprite.lua::SpriteBash");
m_ballBashSprite.Alpha = 0;
m_ballBashSprite.Playing = true;
Owner.Attach(new SpriteComponent(m_ballBashSprite, "ArenaOverlay9"));
m_ballTrail = new BallTrailFx(this);
Owner.Attach(m_ballTrail);
m_bodyCmp.Body.FixedRotation = true;
m_bodyCmp.UserData.Add("Tag", "Ball");
m_bodyCmp.OnCollision += new CollisionEvent(m_bodyCmp_OnCollision);
m_player = null;
m_lastPlayer = null;
m_audioCmpBallBounce = new AudioComponent("Audio/Sounds.lua::BallBounce");
Owner.Attach(m_audioCmpBallBounce);
m_audioCmpBallPlayerSnap = new AudioComponent("Audio/Sounds.lua::BallPlayerSnap");
Owner.Attach(m_audioCmpBallPlayerSnap);
}
public void DrawShape(Fixture fixture, Transform xf, Color color)
{
switch (fixture.Shape.ShapeType)
{
case ShapeType.Circle:
{
CircleShape circle = (CircleShape)fixture.Shape;
Vector2 center = MathUtils.Mul(ref xf, circle.Position);
float radius = circle.Radius;
Vector2 axis = MathUtils.Mul(xf.q, new Vector2(1.0f, 0.0f));
DrawSolidCircle(center, radius, axis, color);
}
break;
case ShapeType.Polygon:
{
PolygonShape poly = (PolygonShape)fixture.Shape;
int vertexCount = poly.Vertices.Count;
Debug.Assert(vertexCount <= Settings.MaxPolygonVertices);
for (int i = 0; i < vertexCount; ++i)
{
_tempVertices[i] = MathUtils.Mul(ref xf, poly.Vertices[i]);
}
DrawSolidPolygon(_tempVertices, vertexCount, color);
}
break;
case ShapeType.Edge:
{
EdgeShape edge = (EdgeShape)fixture.Shape;
Vector2 v1 = MathUtils.Mul(ref xf, edge.Vertex1);
Vector2 v2 = MathUtils.Mul(ref xf, edge.Vertex2);
DrawSegment(v1, v2, color);
}
break;
case ShapeType.Chain:
{
ChainShape chain = (ChainShape)fixture.Shape;
for (int i = 0; i < chain.Vertices.Count - 1; ++i)
{
Vector2 v1 = MathUtils.Mul(ref xf, chain.Vertices[i]);
Vector2 v2 = MathUtils.Mul(ref xf, chain.Vertices[i + 1]);
DrawSegment(v1, v2, color);
}
}
break;
}
}
public virtual void CreateFixtureFromRadius(float radius)
{
float hx = (Sprite.Size.X / 2f);
float hy = (Sprite.Size.Y / 2f);
Sprite.Origin = new Vector2(hx, hy);
CircleShape c = new CircleShape(radius, 1);
c.Position += new Vector2(radius, radius);
CreateFixture(c);
}
private static Body CreateAsteroid()
{
var body = new Body(world);
body.BodyType = BodyType.Dynamic;
body.LinearDamping = 1f;
body.AngularDamping = 1f;
var shape = new FarseerCircleShape(1, 10);
body.CreateFixture(shape);
return body;
}
private RevoluteTest()
{
//Ground
var ground = BodyFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
{
//The big fixed wheel
CircleShape shape = new CircleShape(5.0f, 5);
Body body = BodyFactory.CreateBody(World);
body.Position = new Vector2(-10.0f, 15.0f);
body.BodyType = BodyType.Dynamic;
body.CreateFixture(shape);
_fixedJoint = new FixedRevoluteJoint(body, Vector2.Zero, body.Position);
_fixedJoint.MotorSpeed = 0.25f * Settings.Pi;
_fixedJoint.MaxMotorTorque = 5000.0f;
_fixedJoint.MotorEnabled = true;
World.AddJoint(_fixedJoint);
// The small gear attached to the big one
Body body1 = BodyFactory.CreateGear(World, 1.5f, 10, 0.1f, 1, 1);
body1.Position = new Vector2(-10.0f, 12.0f);
body1.BodyType = BodyType.Dynamic;
_joint = new RevoluteJoint(body, body1, body.GetLocalPoint(body1.Position),
Vector2.Zero);
_joint.MotorSpeed = 1.0f * Settings.Pi;
_joint.MaxMotorTorque = 5000.0f;
_joint.MotorEnabled = true;
_joint.CollideConnected = false;
World.AddJoint(_joint);
CircleShape circle_shape = new CircleShape(3.0f, 5);
var circleBody = BodyFactory.CreateBody(World);
circleBody.Position = new Vector2(5.0f, 30.0f);
circleBody.BodyType = BodyType.Dynamic;
circleBody.CreateFixture(circle_shape);
PolygonShape polygonShape = new PolygonShape(2.0f);
polygonShape.SetAsBox(10.0f, 0.2f, new Vector2(-10.0f, 0.0f), 0.0f);
var polygon_body = BodyFactory.CreateBody(World);
polygon_body.Position = new Vector2(20.0f, 10.0f);
polygon_body.BodyType = BodyType.Dynamic;
polygon_body.IsBullet = true;
polygon_body.CreateFixture(polygonShape);
RevoluteJoint rjd = new RevoluteJoint(ground, polygon_body, new Vector2(20.0f, 10.0f));
rjd.LowerLimit = -0.25f * Settings.Pi;
rjd.UpperLimit = 0.0f;
rjd.LimitEnabled = true;
World.AddJoint(rjd);
}
}
public RoundPhysicsObject(World world, Vector2 position, float density,float restitution, Sprite sprite)
: base(sprite)
{
body = new Body(world);
CircleShape circleShape = new CircleShape(ConvertUnits.ToSimUnits(sprite.Height/2),density);
body.CreateFixture(circleShape);
body.BodyType = BodyType.Dynamic;
body.Position = ConvertUnits.ToSimUnits(position);
body.Friction = 0.4f;
body.Restitution = restitution;
}
public override void OnCreated(AsgardBase instance, Entity entity)
{
var world = instance.LookupSystem<Midgard>();
var manager = world.EntityManager;
var body = world.CreateComponent(entity, BodyDef).Body;
CircleShape shape = new CircleShape(1, 1);
var fix = body.CreateFixture(shape);
fix.Restitution = 1;
fix.Friction = 1;
}
private PathTest()
{
//Single body that moves around path
_movingBody = BodyFactory.CreateBody(World);
_movingBody.Position = new Vector2(-25, 25);
_movingBody.BodyType = BodyType.Dynamic;
_movingBody.CreateFixture(new PolygonShape(PolygonTools.CreateRectangle(0.5f, 0.5f), 1));
//Static shape made up of bodies
_path = new Path();
_path.Add(new Vector2(0, 20));
_path.Add(new Vector2(5, 15));
_path.Add(new Vector2(20, 18));
_path.Add(new Vector2(15, 1));
_path.Add(new Vector2(-5, 14));
_path.Closed = true;
CircleShape shape = new CircleShape(0.25f, 1);
PathManager.EvenlyDistributeShapesAlongPath(World, _path, shape, BodyType.Static, 100);
//Smaller shape that is movable. Created from small rectangles and circles.
Vector2 xform = new Vector2(0.5f, 0.5f);
_path.Scale(ref xform);
xform = new Vector2(5, 5);
_path.Translate(ref xform);
List<Shape> shapes = new List<Shape>(2);
shapes.Add(new PolygonShape(PolygonTools.CreateRectangle(0.5f, 0.5f, new Vector2(-0.1f, 0), 0), 1));
shapes.Add(new CircleShape(0.5f, 1));
List<Body> bodies = PathManager.EvenlyDistributeShapesAlongPath(World, _path, shapes, BodyType.Dynamic, 20);
//Attach the bodies together with revolute joints
PathManager.AttachBodiesWithRevoluteJoint(World, bodies, new Vector2(0, 0.5f), new Vector2(0, -0.5f), true,
true);
xform = new Vector2(-25, 0);
_path.Translate(ref xform);
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Static;
//Static shape made up of edges
PathManager.ConvertPathToEdges(_path, body, 25);
body.Position -= new Vector2(0, 10);
xform = new Vector2(0, 15);
_path.Translate(ref xform);
PathManager.ConvertPathToPolygon(_path, body, 1, 50);
}
private static Body CreateAsteroid()
{
var body = new Body(world);
body.BodyType = BodyType.Dynamic;
body.LinearDamping = 1f;
body.AngularDamping = 1f;
var shape = new FarseerCircleShape(1, 10);
body.CreateFixture(shape);
return(body);
}
private void CreateCircle()
{
const float radius = 2f;
CircleShape shape = new CircleShape(radius, 1);
shape.Position = Vector2.Zero;
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(Rand.RandomFloat(), 3.0f + Rand.RandomFloat());
Fixture fixture = body.CreateFixture(shape);
fixture.Friction = 0;
}
public GamePage()
{
InitializeComponent();
name.Text = Player.GetInstance.name;
score.Text = Player.GetInstance.score.ToString();
World world = new World(new Vector2(0, -1));
Body myBody = BodyFactory.CreateBody(world, new Vector2(10, 0));
CircleShape circleShape = new CircleShape(0.5f,1.0f);
Fixture fixture = myBody.CreateFixture(circleShape);
}
public override void LoadContent()
{
base.LoadContent();
World.Gravity = new Vector2(0, 140);
projection = Matrix.CreateOrthographicOffCenter(0f, ScreenManager.GraphicsDevice.Viewport.Width, ScreenManager.GraphicsDevice.Viewport.Height, 0f, 0f, 1f);
hookpointmanager = new HookPointManager(World);
MaterialType hookpointmaterial = MaterialType.Blank;
swingerbody = BodyFactory.CreateBody(World, new Vector2(3, 10));
swinger = FixtureFactory.AttachCircle(1, 40, swingerbody);
swinger.Body.BodyType = BodyType.Dynamic;
swinger.Friction = 0;
body3 = BodyFactory.CreateBody(World, new Vector2(-4, -10));
body3.IsStatic = true;
CircleShape circleShape3 = new CircleShape(.4f, .3f);
Fixture fixture3 = body3.CreateFixture(circleShape3, hookpointmaterial);
body3.IgnoreGravity = true;
fixture3.Body.BodyType = BodyType.Static;
body2 = BodyFactory.CreateBody(World, new Vector2(-8, -10));
body2.IsStatic = true;
CircleShape circleShape2 = new CircleShape(.4f, .3f);
fixture2 = body2.CreateFixture(circleShape2, hookpointmaterial);
body2.IgnoreGravity = true;
fixture2.Body.BodyType = BodyType.Static;
joint1 = JointFactory.CreateSliderJoint(World, swingerbody, fixture3.Body, Vector2.Zero, Vector2.Zero, 4, 5);
_border = new Border(World, this, ScreenManager.GraphicsDevice.Viewport);
//SetUserAgent(swingerbody, 100f, 100f);
// create sprite based on body
swingersprite = new Sprite(ScreenManager.Assets.TextureFromShape(swingerbody.FixtureList[0].Shape,
MaterialType.Dots,
Color.Red, 2f));
body3sprite = new Sprite(ScreenManager.Assets.TextureFromShape(swingerbody.FixtureList[0].Shape,
MaterialType.Dots,
Color.Red, 2f));
body2sprite = new Sprite(ScreenManager.Assets.TextureFromShape(swingerbody.FixtureList[0].Shape,
MaterialType.Dots,
Color.Red, 2f));
}
private GearsTest()
{
{
// First circle
CircleShape circle1 = new CircleShape(1.0f, 5);
Body body1 = BodyFactory.CreateBody(World);
body1.BodyType = BodyType.Dynamic;
body1.Position = new Vector2(-3.0f, 12.0f);
body1.CreateFixture(circle1);
// Second circle
CircleShape circle2 = new CircleShape(2.0f, 5);
Body body2 = BodyFactory.CreateBody(World);
body2.BodyType = BodyType.Dynamic;
body2.Position = new Vector2(0.0f, 12.0f);
body2.CreateFixture(circle2);
// Rectangle
Vertices box = PolygonTools.CreateRectangle(0.5f, 5.0f);
PolygonShape polygonBox = new PolygonShape(box, 5);
Body body3 = BodyFactory.CreateBody(World);
body3.BodyType = BodyType.Dynamic;
body3.Position = new Vector2(2.5f, 12.0f);
body3.CreateFixture(polygonBox);
// Fix first circle
_joint1 = new FixedRevoluteJoint(body1, Vector2.Zero, body1.Position);
World.AddJoint(_joint1);
// Fix second circle
_joint2 = new FixedRevoluteJoint(body2, Vector2.Zero, body2.Position);
World.AddJoint(_joint2);
// Fix rectangle
_joint3 = new FixedPrismaticJoint(body3, body3.Position, new Vector2(0.0f, 1.0f));
_joint3.LowerLimit = -5.0f;
_joint3.UpperLimit = 5.0f;
_joint3.LimitEnabled = true;
World.AddJoint(_joint3);
// Attach first and second circle together with a gear joint
_joint4 = new GearJoint(_joint1, _joint2, circle2.Radius / circle1.Radius);
World.AddJoint(_joint4);
// Attach second and rectangle together with a gear joint
_joint5 = new GearJoint(_joint2, _joint3, -1.0f / circle2.Radius);
World.AddJoint(_joint5);
}
}
public Ball(Simulation sim, BallData spawn)
{
simulation = sim;
var body = new Body(sim.World);
var shape = new CircleShape(radius, 1f);
body.BodyType = BodyType.Dynamic;
body.FixedRotation = true;
body.LinearDamping = drag;
body.IsBullet = true;
Fixture = body.CreateFixture(shape);
Fixture.Restitution = restitution;
Fixture.Friction = 0f;
Carrier = null;
SpawnPos = spawn.Position;
Spawn();
}
public override void Keyboard(KeyboardManager keyboardManager)
{
if (keyboardManager.IsNewKeyPress(Keys.C) && _fixture2 == null)
{
CircleShape shape = new CircleShape(3.0f, 10);
shape.Position = new Vector2(0.5f, -4.0f);
_fixture2 = _body.CreateFixture(shape);
_body.Awake = true;
}
if (keyboardManager.IsNewKeyPress(Keys.D) && _fixture2 != null)
{
_body.DestroyFixture(_fixture2);
_fixture2 = null;
_body.Awake = true;
}
}
/// <summary>
/// Compare the circle to another circle
/// </summary>
/// <param name="shape">The other circle</param>
/// <returns>True if the two circles are the same size and have the same position</returns>
public bool CompareTo(CircleShape shape)
{
return(Radius == shape.Radius && Position == shape.Position);
}
/// <summary>
/// Compare the circle to another circle
/// </summary>
/// <param name="shape">The other circle</param>
/// <returns>True if the two circles are the same size and have the same position</returns>
public bool CompareTo(CircleShape shape)
{
return(radius == shape.radius && position == shape.position);
}