public Pyramid(World world, Vector2 position, int count, float density)
{
Vertices rect = PolygonTools.CreateRectangle(0.5f, 0.5f);
PolygonShape shape = new PolygonShape(rect, density);
Vector2 rowStart = position;
rowStart.Y -= 0.5f + count * 1.1f;
Vector2 deltaRow = new Vector2(-0.625f, 1.1f);
const float spacing = 1.25f;
// Physics
_boxes = new List<Body>();
for (int i = 0; i < count; i++)
{
Vector2 pos = rowStart;
for (int j = 0; j < i + 1; j++)
{
Body body = BodyFactory.CreateBody(world);
body.BodyType = BodyType.Dynamic;
body.Position = pos;
body.CreateFixture(shape);
_boxes.Add(body);
pos.X += spacing;
}
rowStart += deltaRow;
}
//GFX
_box = new Sprite(ContentWrapper.PolygonTexture(rect, "Square", ContentWrapper.Blue, ContentWrapper.Gold, ContentWrapper.Black, 1f));
}
private PyramidTest()
{
//Create ground
FixtureFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
Vertices box = PolygonTools.CreateRectangle(0.5f, 0.5f);
PolygonShape shape = new PolygonShape(box, 5);
Vector2 x = new Vector2(-7.0f, 0.75f);
Vector2 deltaX = new Vector2(0.5625f, 1.25f);
Vector2 deltaY = new Vector2(1.125f, 0.0f);
for (int i = 0; i < Count; ++i)
{
Vector2 y = x;
for (int j = i; j < Count; ++j)
{
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = y;
body.CreateFixture(shape);
y += deltaY;
}
x += deltaX;
}
}
/// <summary>
/// Creates a chain.
/// </summary>
/// <param name="world">The world.</param>
/// <param name="start">The start.</param>
/// <param name="end">The end.</param>
/// <param name="linkWidth">The width.</param>
/// <param name="linkHeight">The height.</param>
/// <param name="fixStart">if set to <c>true</c> [fix start].</param>
/// <param name="fixEnd">if set to <c>true</c> [fix end].</param>
/// <param name="numberOfLinks">The number of links.</param>
/// <param name="linkDensity">The link density.</param>
/// <returns></returns>
public static Path CreateChain(World world, Vector2 start, Vector2 end, float linkWidth, float linkHeight, bool fixStart, bool fixEnd, int numberOfLinks, float linkDensity)
{
// Chain start / end
Path path = new Path();
path.Add(start);
path.Add(end);
// A single chainlink
PolygonShape shape = new PolygonShape(PolygonTools.CreateRectangle(linkWidth, linkHeight));
// Use PathManager to create all the chainlinks based on the chainlink created before.
List<Body> chainLinks = PathManager.EvenlyDistibuteShapesAlongPath(world, path, shape, BodyType.Dynamic, numberOfLinks, linkDensity);
if (fixStart)
{
// Fix the first chainlink to the world
JointFactory.CreateFixedRevoluteJoint(world, chainLinks[0], new Vector2(0, -(linkHeight / 2)), chainLinks[0].Position);
}
if (fixEnd)
{
// Fix the last chainlink to the world
JointFactory.CreateFixedRevoluteJoint(world, chainLinks[chainLinks.Count - 1], new Vector2(0, (linkHeight / 2)), chainLinks[chainLinks.Count - 1].Position);
}
// Attach all the chainlinks together with a revolute joint
PathManager.AttachBodiesWithRevoluteJoint(world, chainLinks, new Vector2(0, -linkHeight), new Vector2(0, linkHeight),
false, false);
return (path);
}
public NetworkCollisionRemnant(Vector2 position, float size, float angleOfStartForce, int ownerId, Color color, World world, Player creator)
: base(position, size, color, null, creator)
{
OwnerId = ownerId;
body = BodyFactory.CreateBody(world);
body.BodyType = BodyType.Dynamic;
body.Position = ConvertUnits.ToSimUnits(position);
body.FixedRotation = true;
body.LinearDamping = 0.8f;
//Create the vertices that will create the collision shape
Vertices verts = new Vertices();
verts.Add(new Vector2(-ConvertUnits.ToSimUnits(size / 2f), ConvertUnits.ToSimUnits(size / 2f)));
verts.Add(new Vector2(-ConvertUnits.ToSimUnits(size / 2f), -ConvertUnits.ToSimUnits(size / 2f)));
verts.Add(new Vector2(ConvertUnits.ToSimUnits(size / 2f), -ConvertUnits.ToSimUnits(size / 2f)));
verts.Add(new Vector2(ConvertUnits.ToSimUnits(size / 2f), ConvertUnits.ToSimUnits(size / 2f)));
//Create the shape and attach it to the body
PolygonShape s = new PolygonShape(verts, 0);
body.CreateFixture(s);
body.FixtureList[0].IsSensor = true;
body.UserData = this;
body.CollidesWith = Category.Cat2;
body.CollisionCategories = Category.Cat2;
//body.OnSeparation += body_OnSeparation;
body.ApplyLinearImpulse(new Vector2((float)Math.Cos(angleOfStartForce),(float)Math.Sin(angleOfStartForce)) * 10f);
}
public Key(Rectangle pos, Map map)
: base(map)
{
Body BodyDec = new Body(map.PhysicalWorld);
BodyDec.BodyType = BodyType.Static;
PolygonShape S = new PolygonShape(1f);
S.SetAsBox(pos.Width / 2, pos.Height / 2);
Fixture = BodyDec.CreateFixture(S);
Fixture.Restitution = 1f;
Fixture.Friction = 10f;
this.Position = pos;
SetName("Key");
LightingEngine LE = (LightingEngine)Renderer.GetRenderEffect("LightingEngine");
light = new PointLight()
{
IsEnabled = true,
Color = new Vector4(0.95f, .7f, .05f, 1f),
Power = power,
LightDecay = 350,
Position = new Vector3(Position.X, Position.Y, 20),
Direction = new Vector3(0,0, 0)
};
LE.AddLight(light);
}
protected Tank(
ISoundManager soundManager,
World world,
Collection<IDoodad> doodads,
Team team,
Vector2 position,
float rotation,
DoodadFactory doodadFactory)
{
this.soundManager = soundManager;
this.world = world;
this.doodadFactory = doodadFactory;
this.doodads = doodads;
this.body = BodyFactory.CreateBody(world, position, this);
this.body.Rotation = rotation;
this.body.BodyType = BodyType.Dynamic;
this.Team = team;
this.Heading = rotation;
this.activeMissiles = new List<Missile>();
this.powerup = PowerUpType.None;
var shape = new PolygonShape(0);
shape.SetAsBox(15 / Constants.PixelsPerMeter, 15 / Constants.PixelsPerMeter);
var fixture = this.body.CreateFixture(shape);
fixture.CollisionCategories = this.CollisionCategory;
fixture.CollidesWith = PhysicsConstants.MissileCategory;
if (this is PlayerControlledTank)
{
fixture.CollidesWith |= PhysicsConstants.ObstacleCategory | PhysicsConstants.PitCategory |
PhysicsConstants.SensorCategory;
}
}
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;
}
var vertices = PolygonTools.CreateRectangle((vMax.X - vMin.X) / 2.0f, (vMax.Y - vMin.Y) / 2);
CollisionShape = new PolygonShape(vertices, 1.0f);
return true;
}
public override void LoadContent()
{
base.LoadContent();
World.Gravity = new Vector2(0, 9.82f);
_border = new Border(World, this, ScreenManager.GraphicsDevice.Viewport);
/* Bridge */
//We make a path using 2 points.
Path bridgePath = new Path();
bridgePath.Add(new Vector2(-15, 5));
bridgePath.Add(new Vector2(15, 5));
bridgePath.Closed = false;
Vertices box = PolygonTools.CreateRectangle(0.125f, 0.5f);
PolygonShape shape = new PolygonShape(box, 20);
_bridgeBodies = PathManager.EvenlyDistributeShapesAlongPath(World, bridgePath, shape,
BodyType.Dynamic, 29);
_bridgeBox =
new Sprite(ScreenManager.Assets.TextureFromShape(shape, MaterialType.Dots, Color.SandyBrown, 1f));
//Attach the first and last fixtures to the world
JointFactory.CreateFixedRevoluteJoint(World, _bridgeBodies[0], new Vector2(0f, -0.5f),
_bridgeBodies[0].Position);
JointFactory.CreateFixedRevoluteJoint(World, _bridgeBodies[_bridgeBodies.Count - 1], new Vector2(0, 0.5f),
_bridgeBodies[_bridgeBodies.Count - 1].Position);
PathManager.AttachBodiesWithRevoluteJoint(World, _bridgeBodies, new Vector2(0f, -0.5f),
new Vector2(0f, 0.5f),
false, true);
/* Soft body */
//We make a rectangular path.
Path rectanglePath = new Path();
rectanglePath.Add(new Vector2(-6, -11));
rectanglePath.Add(new Vector2(-6, 1));
rectanglePath.Add(new Vector2(6, 1));
rectanglePath.Add(new Vector2(6, -11));
rectanglePath.Closed = true;
//Creating two shapes. A circle to form the circle and a rectangle to stabilize the soft body.
List<Shape> shapes = new List<Shape>(2);
shapes.Add(new PolygonShape(PolygonTools.CreateRectangle(0.5f, 0.5f, new Vector2(-0.1f, 0f), 0f), 1f));
shapes.Add(new CircleShape(0.5f, 1f));
//We distribute the shapes in the rectangular path.
_softBodies = PathManager.EvenlyDistributeShapesAlongPath(World, rectanglePath, shapes,
BodyType.Dynamic, 30);
_softBodyBox =
new Sprite(ScreenManager.Assets.TextureFromShape(shapes[0], MaterialType.Blank, Color.Silver * 0.8f, 1f));
_softBodyBox.Origin += new Vector2(ConvertUnits.ToDisplayUnits(0.1f), 0f);
_softBodyCircle =
new Sprite(ScreenManager.Assets.TextureFromShape(shapes[1], MaterialType.Waves, Color.Silver, 1f));
//Attach the bodies together with revolute joints. The rectangular form will converge to a circular form.
PathManager.AttachBodiesWithRevoluteJoint(World, _softBodies, new Vector2(0f, -0.5f), new Vector2(0f, 0.5f),
true, true);
}
public override Body CreateBody(World world)
{
Int32 count = 0;
foreach (var key in _resource.TileDefinitionKeys)
{
var tileDefinition = (TerrainTileDefinitionResource)ResourceDictionary.GetResource(key);
if (!String.IsNullOrEmpty(tileDefinition.CollisionHullKey))
{
var vertices = new Vertices((Vector2[])this.ResourceDictionary.GetResource(tileDefinition.CollisionHullKey));
var body = new Body(world);
_bodies.Add(body);
body.BodyType = BodyType.Static;
var location = ((ILocatable)_actor).Location;
body.Position = new Vector2(((count % _resource.Columns) * _resource.TileWidth + location.X) / Settings.MetersToPixels, ((Int32)(count / _resource.Columns) * _resource.TileHeight + location.Y) / Settings.MetersToPixels);
var shape = new PolygonShape(vertices, 0f);
var fixture = new Fixture(body, shape, 1.0f);
fixture.UserData = new CollisionData { Actor = _actor, Data = tileDefinition.CollisionData };
}
count++;
}
return null;
}
private PulleysTest()
{
//Ground
FixtureFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
{
const float a = 2.0f;
const float b = 4.0f;
const float y = 16.0f;
const float l = 12.0f;
PolygonShape shape = new PolygonShape(5);
shape.SetAsBox(a, b);
Body body1 = BodyFactory.CreateBody(World);
body1.BodyType = BodyType.Dynamic;
body1.Position = new Vector2(-10.0f, y);
body1.CreateFixture(shape);
Body body2 = BodyFactory.CreateBody(World);
body2.BodyType = BodyType.Dynamic;
body2.Position = new Vector2(10.0f, y);
body2.CreateFixture(shape);
Vector2 anchor1 = new Vector2(-10.0f, y + b);
Vector2 anchor2 = new Vector2(10.0f, y + b);
Vector2 groundAnchor1 = new Vector2(-10.0f, y + b + l);
Vector2 groundAnchor2 = new Vector2(10.0f, y + b + l);
_joint1 = new PulleyJoint(body1, body2, groundAnchor1, groundAnchor2, body1.GetLocalPoint(anchor1),
body2.GetLocalPoint(anchor2), 2.0f);
World.AddJoint(_joint1);
}
}
private PrismaticTest()
{
Body ground = BodyFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
PolygonShape shape = new PolygonShape(5);
shape.Vertices = PolygonTools.CreateRectangle(2.0f, 0.5f);
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(-10.0f, 10.0f);
body.Rotation = 0.5f * Settings.Pi;
body.CreateFixture(shape);
// Bouncy limit
Vector2 axis = new Vector2(2.0f, 1.0f);
axis.Normalize();
_joint = new PrismaticJoint(ground, body, Vector2.Zero, axis);
// Non-bouncy limit
//_joint = new PrismaticJoint(ground, body2, body2.Position, new Vector2(-10.0f, 10.0f), new Vector2(1.0f, 0.0f));
_joint.MotorSpeed = 5.0f;
_joint.MaxMotorForce = 1000.0f;
_joint.MotorEnabled = true;
_joint.LowerLimit = -10.0f;
_joint.UpperLimit = 20.0f;
_joint.LimitEnabled = true;
World.AddJoint(_joint);
}
public override Body CreateBody(World world)
{
var unitHull = (Vector2[])ResourceDictionary.GetResource("UnitHull");
var scaledVertices = new List<Vector2>();
foreach (var vertex in unitHull)
{
scaledVertices.Add(new Vector2(vertex.X * _resource.Width, vertex.Y * _resource.Height));
}
var vertices = new Vertices(scaledVertices);
var body = new Body(world);
body.BodyType = BodyType.Static;
var location = ((ILocatable)_actor).Location;
body.Position = new Vector2(location.X, location.Y);
var shape = new PolygonShape(vertices, 1f);
var fixture = body.CreateFixture(shape, 0f);
fixture.UserData = new CollisionData { Actor = _actor };
fixture.CollisionGroup = _resource.CollisionGroup;
fixture.OnCollision += OnCollision;
_body = body;
return body;
}
public Chest(Rectangle r,Map m)
: base(m)
{
Body BodyDec = new Body(m.PhysicalWorld);
BodyDec.BodyType = BodyType.Static;
PolygonShape S = new PolygonShape(1f);
S.SetAsBox(r.Width / 2, r.Height / 2);
Fixture = BodyDec.CreateFixture(S);
Fixture.Restitution = 1f;
Fixture.Friction = 10f;
Position = r;
SetName("Chest");
items = new List<Item>();
ChestWindow = new Window(GeneralManager.GetPartialRect(0.4f, 0.2f, 0.2f, 0.6f));
ChestWindow.BgTex = GeneralManager.Textures["GUI/InGameGUI/ChestMenuBg"];
ChestWindow.Visible = false;
CloseButton = new Button(new Rectangle(ChestWindow.Position.Width - 32, 8, 24, 24), "", GeneralManager.Textures["GUI/InGameGUI/CloseButton"], Color.Gray, Color.White, null);
CloseButton.Action = CloseChestWindow;
ChestWindow.AddGUI(CloseButton );
list = new ListBox(new Rectangle(16,16,ChestWindow.Position.Width - 24,ChestWindow.Position.Height - 32));
ChestWindow.AddGUI(list);
Map.Parent.AddGUI(ChestWindow);
}
private Tumbler()
{
var ground = BodyFactory.CreateBody(World);
var body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(0.0f, 10.0f);
PolygonShape shape = new PolygonShape(5);
shape.SetAsBox(0.5f, 10.0f, new Vector2(10.0f, 0.0f), 0.0f);
body.CreateFixture(shape);
shape.SetAsBox(0.5f, 10.0f, new Vector2(-10.0f, 0.0f), 0.0f);
body.CreateFixture(shape);
shape.SetAsBox(10.0f, 0.5f, new Vector2(0.0f, 10.0f), 0.0f);
body.CreateFixture(shape);
shape.SetAsBox(10.0f, 0.5f, new Vector2(0.0f, -10.0f), 0.0f);
body.CreateFixture(shape);
var jd = new RevoluteJoint(ground, body, new Vector2(0.0f, 10.0f), new Vector2(0.0f, 0.0f));
jd.ReferenceAngle = 0.0f;
jd.MotorSpeed = 0.05f * MathHelper.Pi;
jd.MaxMotorTorque = 1e8f;
jd.MotorEnabled = true;
World.AddJoint(jd);
}
private PulleysTest()
{
//Ground
Body ground = BodyFactory.CreateBody(World);
FixtureFactory.AttachCircle(2, 0, ground, new Vector2(-10.0f, Y + B + L));
FixtureFactory.AttachCircle(2, 0, ground, new Vector2(10.0f, Y + B + L));
{
PolygonShape shape = new PolygonShape(5);
shape.Vertices = PolygonTools.CreateRectangle(A, B);
Body body1 = BodyFactory.CreateBody(World);
body1.BodyType = BodyType.Dynamic;
body1.Position = new Vector2(-10.0f, Y);
body1.CreateFixture(shape);
Body body2 = BodyFactory.CreateBody(World);
body2.BodyType = BodyType.Dynamic;
body2.Position = new Vector2(10.0f, Y);
body2.CreateFixture(shape);
Vector2 anchor1 = new Vector2(-10.0f, Y + B);
Vector2 anchor2 = new Vector2(10.0f, Y + B);
Vector2 groundAnchor1 = new Vector2(-10.0f, Y + B + L);
Vector2 groundAnchor2 = new Vector2(10.0f, Y + B + L);
_joint1 = new PulleyJoint(body1, body2, anchor1, anchor2, groundAnchor1, groundAnchor2, 1.5f, true);
World.AddJoint(_joint1);
}
}
public override void LoadContent()
{
_agent = new Agent(World, new Vector2(5, 10));
Vertices box = PolygonTools.CreateRectangle(0.5f, 0.5f);
PolygonShape shape = new PolygonShape(box, 1);
Vector2 x = new Vector2(-8.0f, -17.0f);
Vector2 deltaX = new Vector2(0.5625f, 1.25f);
Vector2 deltaY = new Vector2(1.125f, 0.0f);
for (int i = 0; i < PyramidBaseBodyCount; ++i)
{
Vector2 y = x;
for (int j = i; j < PyramidBaseBodyCount; ++j)
{
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = y;
body.CreateFixture(shape);
y += deltaY;
}
x += deltaX;
}
base.LoadContent();
}
private RopeTest()
{
Body ground;
{
ground = new Body(World);
EdgeShape shape = new EdgeShape(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
ground.CreateFixture(shape);
}
{
Body prevBody = ground;
PolygonShape largeShape = new PolygonShape(PolygonTools.CreateRectangle(1.5f, 1.5f), 100);
PolygonShape smallShape = new PolygonShape(PolygonTools.CreateRectangle(0.5f, 0.125f), 20);
const int N = 10;
const float y = 15;
for (int i = 0; i < N; ++i)
{
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(0.5f + 1.0f * i, y);
if (i == N - 1)
{
Fixture fixture = body.CreateFixture(largeShape);
fixture.Friction = 0.2f;
fixture.CollisionCategories = Category.Cat2;
fixture.CollidesWith = Category.All & ~Category.Cat2;
body.Position = new Vector2(1.0f * i, y);
body.AngularDamping = 0.4f;
}
else
{
Fixture fixture = body.CreateFixture(smallShape);
fixture.Friction = 0.2f;
fixture.CollisionCategories = Category.Cat1;
fixture.CollidesWith = Category.All & ~Category.Cat2;
}
Vector2 anchor = new Vector2(i, y);
RevoluteJoint jd = new RevoluteJoint(prevBody, body, prevBody.GetLocalPoint(ref anchor),
body.GetLocalPoint(ref anchor));
jd.CollideConnected = false;
World.AddJoint(jd);
prevBody = body;
}
_rj = new RopeJoint(ground, prevBody, new Vector2(0, y), Vector2.Zero);
//FPE: The two following lines are actually not needed as FPE sets the MaxLength to a default value
const float extraLength = 0.01f;
_rj.MaxLength = N - 1.0f + extraLength;
World.AddJoint(_rj);
}
}
public Goalie(World world, GoalieData spawn)
{
var body = new Body(world);
var angle = spawn.End - spawn.Begin;
body.Rotation = FMath.Atan2(angle.Y, angle.X);
segment.A = spawn.Begin;
segment.B = spawn.End;
var normal = new Vector2(-angle.Y, angle.X);
normal.Normalize();
delta = normal * .5f;
segmentOut.A = spawn.Begin + delta;
segmentOut.B = spawn.End + delta;
segmentIn.A = spawn.Begin - delta;
segmentIn.B = spawn.End - delta;
body.Position = spawn.Begin;
var verts = new Vertices();
verts.Add(new Vector2(left, bottom));
verts.Add(new Vector2(right, bottom));
verts.Add(new Vector2(right, top));
verts.Add(new Vector2(left, top));
var shape = new PolygonShape(verts, 1f);
body.FixedRotation = true;
body.BodyType = BodyType.Dynamic;
Fixture = body.CreateFixture(shape);
}
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);
}
}
public static Fixture AttachRectangle(float width, float height, float density, Vector2 offset, Body body, object userData = null)
{
Vertices rectangleVertices = PolygonTools.CreateRectangle(width / 2, height / 2);
rectangleVertices.Translate(ref offset);
PolygonShape rectangleShape = new PolygonShape(rectangleVertices, density);
return body.CreateFixture(rectangleShape, userData);
}
private WheelJointTest()
{
Body ground = BodyFactory.CreateEdge(World, new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
{
PolygonShape shape = new PolygonShape(1);
shape.Vertices = PolygonTools.CreateRectangle(0.5f, 2.0f);
Body body = new Body(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(0.0f, 7.0f);
body.CreateFixture(shape);
Vector2 axis = new Vector2(-1000.0f, -2.0f);
axis.Normalize();
WheelJoint jd = new WheelJoint(ground, body, new Vector2(0, 8.5f), axis);
jd.MotorSpeed = 1.0f;
jd.MaxMotorTorque = 1000.0f;
jd.MotorEnabled = true;
jd.SpringFrequencyHz = 1.0f;
jd.SpringDampingRatio = 0.2f;
World.AddJoint(jd);
PolygonShape shape2 = new PolygonShape(1);
shape2.Vertices = PolygonTools.CreateRectangle(0.5f, 2.0f);
Body body2 = BodyFactory.CreatePolygon(World, shape2.Vertices, 0.5f);
body2.BodyType = BodyType.Dynamic;
body2.Position = new Vector2(10.0f, 7.0f);
}
}
public override void Update(GameSettings settings, GameTime gameTime)
{
base.Update(settings, gameTime);
PolygonShape shape = new PolygonShape(new Vertices(_points), 0f);
DrawString("Press g to generate a new random convex hull");
DebugView.BeginCustomDraw(ref GameInstance.Projection, ref GameInstance.View);
DebugView.DrawPolygon(shape.Vertices.ToArray(), shape.Vertices.Count, new Color(0.9f, 0.9f, 0.9f));
for (int i = 0; i < _count; ++i)
{
DebugView.DrawPoint(_points[i], 0.1f, new Color(0.9f, 0.5f, 0.5f));
Vector2 position = GameInstance.ConvertWorldToScreen(_points[i]);
DebugView.DrawString((int)position.X, (int)position.Y, i.ToString());
}
DebugView.EndCustomDraw();
if (_auto)
{
Generate();
}
}
public override Body CreateBody(World world)
{
var unithull = new Vertices((Vector2[])this.ResourceDictionary.GetResource(_resource.CollisionHullKey));
var scaledVertices = new List<Vector2>();
foreach (var vertex in unithull)
{
scaledVertices.Add(new Vector2(vertex.X * _resource.Width, vertex.Y * _resource.Height));
}
var vertices = new Vertices(scaledVertices);
var body = new Body(world);
body.BodyType = BodyType.Dynamic;
body.IgnoreGravity = true;
body.LinearDamping = 0.0f;
body.FixedRotation = true;
body.Mass = 0;
var location = ((ILocatable)_actor).Location;
body.Position = new Vector2(location.X, location.Y);
var shape = new PolygonShape(vertices, 1f);
var fixture = body.CreateFixture(shape, 0f);
fixture.CollisionGroup = _resource.CollisionGroup;
fixture.UserData = new CollisionData { Actor = _actor };
fixture.OnCollision += OnCollision;
_body = body;
return body;
}
public RedAlarmLamp(Rectangle r, Map m)
: base(m)
{
Body BodyDec = new Body(m.PhysicalWorld);
BodyDec.BodyType = BodyType.Static;
PolygonShape S = new PolygonShape(1f);
S.SetAsBox(r.Width / 2, r.Height / 2);
Fixture = BodyDec.CreateFixture(S);
Fixture.Restitution = 1f;
Fixture.Friction = 10f;
Position = r;
SetName("RedAlarmLamp");
AlertLight = new SpotLight()
{
IsEnabled = true,
Color = new Vector4(0.9f, .1f, .1f, 1f),
Power = .6f,
LightDecay = 600,
Position = new Vector3(r.X, r.Y, 20),
SpotAngle = 1.5f,
SpotDecayExponent = 3,
Direction = new Vector3(0.244402379f, 0.969673932f, 0)
};
LightingEngine LE = (LightingEngine)Renderer.GetRenderEffect("LightingEngine");
LE.AddLight(AlertLight);
}
private SensorTest()
{
{
Body ground = BodyFactory.CreateBody(World);
{
Vertices edge = PolygonTools.CreateEdge(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
PolygonShape shape = new PolygonShape(edge, 1);
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 FarseerObject(FarseerWorld world, Vertices vertices, float density = 1, BodyType BodyType = BodyType.Dynamic)
{
Shape shape = new PolygonShape(vertices, density);
body = new Body(world.World);
body.BodyType = BodyType;
body.CreateFixture(shape);
body.Enabled = false;
}
public override EngineShapes.Shape ToEngineShape()
{
var engineShape = new EngineShapes.PolygonShape(ShapeSettings.DefaultDensity);
engineShape.Set(new Vertices(
Points.Select(p => (p - Center).ToSimulation()).ToList()));
return(engineShape);
}
public static Fixture AttachPolygon( Vertices vertices, float density, Body body, object userData = null )
{
if( vertices.Count <= 1 )
throw new ArgumentOutOfRangeException( nameof( vertices ), "Too few points to be a polygon" );
var polygon = new PolygonShape( vertices, density );
return body.createFixture( polygon, userData );
}
public Missile(Ship parent, Vector2 offset, Vector2 speed, string texture)
: base(parent, texture, parent.Size)
{
#region Body Initialize
Body = new Body(State.World);
Body.BodyType = BodyType.Dynamic;
Body.IsBullet = true;
Body.LinearDamping = 1;
Body.AngularDamping = 1;
var size = parent.Size;
var shape = new PolygonShape(PolygonTools.CreateRectangle(0.05f * size, 0.2f * size, new Vector2(0) * size, 0), 1);
Body.CreateFixture(shape);
Body.Position = parent.Body.Position + parent.Body.GetWorldVector(offset);
Body.Rotation = parent.Body.Rotation;
Body.OnCollision += (a, b, contact) =>
{
if (b.Body.UserData == Parent)
return false;
if (b.Body.UserData is Projectile) // TODO: damage
return false;
var entityB = b.Body.UserData as Entity;
if (entityB != null)
Hit(entityB);
Dead = true;
return false;
};
Body.LinearVelocity = Parent.Body.LinearVelocity + Parent.Body.GetWorldVector(speed);
Body.UserData = this;
#endregion
var start = Body.Position;
var point = start + Util.RadarLengthDir(Body.Rotation - (Util.Pi2 / 4), 50);
var min = 100f;
Entity entity = null;
// TODO: use multiple rays
parent.State.World.RayCast((f, p, n, fr) =>
{
if (f.Body == parent.Body || f.Body.UserData is Bullet)
return -1;
if (fr > min)
return 1;
min = fr;
entity = (Entity)f.Body.UserData;
return fr;
}, start, point);
if (entity is Ship)
_target = entity;
}
private LineJointTest()
{
Body ground;
{
ground = BodyFactory.CreateBody(World);
Vertices edge = PolygonTools.CreateEdge(new Vector2(-40.0f, 0.0f), new Vector2(40.0f, 0.0f));
PolygonShape shape = new PolygonShape(edge, 0);
ground.CreateFixture(shape);
}
//-------------------------
// FixedLineJoint example
//-------------------------
{
PolygonShape shape = new PolygonShape(PolygonTools.CreateRectangle(0.5f, 2.0f), 1);
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(0.0f, 7.0f);
body.CreateFixture(shape);
Vector2 axis = new Vector2(2.0f, 1.0f);
axis.Normalize();
_fixedLineJoint = new FixedLineJoint(body, new Vector2(0.0f, 8.5f), axis);
_fixedLineJoint.MotorSpeed = 100.0f;
_fixedLineJoint.MaxMotorForce = 100.0f;
_fixedLineJoint.MotorEnabled = false;
_fixedLineJoint.LowerLimit = -4.0f;
_fixedLineJoint.UpperLimit = 4.0f;
_fixedLineJoint.EnableLimit = true;
World.AddJoint(_fixedLineJoint);
}
//-------------------------
// LineJoint example
//-------------------------
{
PolygonShape shape = new PolygonShape(PolygonTools.CreateRectangle(0.5f, 2.0f), 1);
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = new Vector2(10.0f, 7.0f);
body.CreateFixture(shape);
Vector2 axis = new Vector2(2.0f, 1.0f);
axis.Normalize();
Vector2 anchor = new Vector2(0.0f, 1.5f);
_lineJoint = new LineJoint(ground, body, ground.GetLocalPoint(body.GetWorldPoint(anchor)), anchor, axis);
_lineJoint.MotorSpeed = 100.0f;
_lineJoint.MaxMotorForce = 100.0f;
_lineJoint.MotorEnabled = false;
_lineJoint.LowerLimit = -4.0f;
_lineJoint.UpperLimit = 4.0f;
_lineJoint.EnableLimit = true;
World.AddJoint(_lineJoint);
}
}
private TilesTest()
{
Stopwatch timer = new Stopwatch();
timer.Start();
{
const float a = 0.5f;
Body ground = BodyFactory.CreateBody(World, new Vector2(0, -a));
const int N = 200;
const int M = 10;
Vector2 position = Vector2.Zero;
position.Y = 0.0f;
for (int j = 0; j < M; ++j)
{
position.X = -N * a;
for (int i = 0; i < N; ++i)
{
PolygonShape shape = new PolygonShape(0);
shape.SetAsBox(a, a, position, 0.0f);
Fixture fix = ground.CreateFixture(shape);
++_fixtureCount;
position.X += 2.0f * a;
}
position.Y -= 2.0f * a;
}
}
{
const float a = 0.5f;
Vertices box = PolygonTools.CreateRectangle(a, a);
PolygonShape shape = new PolygonShape(box, 5);
Vector2 x = new Vector2(-7.0f, 0.75f);
Vector2 deltaX = new Vector2(0.5625f, 1.25f);
Vector2 deltaY = new Vector2(1.125f, 0.0f);
for (int i = 0; i < Count; ++i)
{
Vector2 y = x;
for (int j = i; j < Count; ++j)
{
Body body = BodyFactory.CreateBody(World);
body.BodyType = BodyType.Dynamic;
body.Position = y;
body.CreateFixture(shape);
++_fixtureCount;
y += deltaY;
}
x += deltaX;
}
}
timer.Stop();
_createTime = timer.ElapsedMilliseconds;
}
public override bool TestPoint(Vector2 point)
{
var test = new EngineShapes.PolygonShape(1.0f);
test.Set(new Vertices(
Points.Select(x => new Xna.Vector2(x.X, x.Y)).ToList()));
var transform = new Transform();
transform.SetIdentity();
var mouseXna = new Xna.Vector2(point.X, point.Y);
return(test.TestPoint(ref transform, ref mouseXna));
}
public override EngineShapes.Shape ToEngineShape()
{
var offset = Offset - Center;
var shape = new EngineShapes.PolygonShape(ShapeSettings.DefaultDensity);
shape.Set(new Vertices(new[]
{
offset.ToSimulation(),
(offset + new Vector2(Size.X, 0)).ToSimulation(),
(offset + Size).ToSimulation(),
(offset + new Vector2(0, Size.Y)).ToSimulation(),
}));
return(shape);
}