public Spider(World world, PhysicsGameScreen screen, Vector2 position)
{
//Load bodies
_circle = BodyFactory.CreateCircle(world, SpiderBodyRadius, 0.1f, position);
_circle.BodyType = BodyType.Dynamic;
//Left upper leg
_leftUpper = BodyFactory.CreateRectangle(world, _upperLegSize.X, _upperLegSize.Y, 0.1f,
_circle.Position - new Vector2(SpiderBodyRadius, 0f) -
new Vector2(_upperLegSize.X / 2f, 0f));
_leftUpper.BodyType = BodyType.Dynamic;
//Left lower leg
_leftLower = BodyFactory.CreateRectangle(world, _lowerLegSize.X, _lowerLegSize.Y, 0.1f,
_circle.Position - new Vector2(SpiderBodyRadius, 0f) -
new Vector2(_upperLegSize.X, 0f) -
new Vector2(_lowerLegSize.X / 2f, 0f));
_leftLower.BodyType = BodyType.Dynamic;
//Right upper leg
_rightUpper = BodyFactory.CreateRectangle(world, _upperLegSize.X, _upperLegSize.Y, 0.1f,
_circle.Position + new Vector2(SpiderBodyRadius, 0f) +
new Vector2(_upperLegSize.X / 2f, 0f));
_rightUpper.BodyType = BodyType.Dynamic;
//Right lower leg
_rightLower = BodyFactory.CreateRectangle(world, _lowerLegSize.X, _lowerLegSize.Y, 0.1f,
_circle.Position + new Vector2(SpiderBodyRadius, 0f) +
new Vector2(_upperLegSize.X, 0f) +
new Vector2(_lowerLegSize.X / 2f, 0f));
_rightLower.BodyType = BodyType.Dynamic;
//Create joints
JointFactory.CreateRevoluteJoint(world, _circle, _leftUpper, new Vector2(_upperLegSize.X / 2f, 0f));
_leftShoulderAngleJoint = JointFactory.CreateAngleJoint(world, _circle, _leftUpper);
_leftShoulderAngleJoint.MaxImpulse = 3f;
JointFactory.CreateRevoluteJoint(world, _circle, _rightUpper, new Vector2(-_upperLegSize.X / 2f, 0f));
_rightShoulderAngleJoint = JointFactory.CreateAngleJoint(world, _circle, _rightUpper);
_rightShoulderAngleJoint.MaxImpulse = 3f;
JointFactory.CreateRevoluteJoint(world, _leftUpper, _leftLower, new Vector2(_lowerLegSize.X / 2f, 0f));
_leftKneeAngleJoint = JointFactory.CreateAngleJoint(world, _leftUpper, _leftLower);
_leftKneeAngleJoint.MaxImpulse = 3f;
JointFactory.CreateRevoluteJoint(world, _rightUpper, _rightLower, new Vector2(-_lowerLegSize.X / 2f, 0f));
_rightKneeAngleJoint = JointFactory.CreateAngleJoint(world, _rightUpper, _rightLower);
_rightKneeAngleJoint.MaxImpulse = 3;
_screen = screen;
//GFX
AssetCreator creator = _screen.ScreenManager.Assets;
_torso = new Sprite(creator.CircleTexture(SpiderBodyRadius, MaterialType.Waves, Color.Gray, 1f));
_upperLeg = new Sprite(creator.TextureFromShape(_leftUpper.FixtureList[0].Shape,
MaterialType.Blank, Color.DimGray, 1f));
_lowerLeg = new Sprite(creator.TextureFromShape(_leftLower.FixtureList[0].Shape,
MaterialType.Blank, Color.DarkSlateGray, 1f));
}
public Ragdoll(World world, PhysicsGameScreen screen, Vector2 position)
{
CreateBody(world, position);
CreateJoints(world);
_screen = screen;
CreateGFX();
}
public Pyramid(World world, PhysicsGameScreen screen, 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;
_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;
}
_screen = screen;
//GFX
AssetCreator creator = _screen.ScreenManager.Assets;
_box = new Sprite(creator.TextureFromVertices(rect, MaterialType.Dots, Color.SaddleBrown, 2f));
}
public Agent(World world, PhysicsGameScreen screen, Vector2 position)
{
_collidesWith = Category.All;
_collisionCategories = Category.All;
_agentBody = BodyFactory.CreateBody(world, position);
_agentBody.BodyType = BodyType.Dynamic;
//Center
FixtureFactory.AttachCircle(0.5f, 0.5f, _agentBody);
//Left arm
FixtureFactory.AttachRectangle(1.5f, 0.4f, 1f, new Vector2(-1f, 0f), _agentBody);
FixtureFactory.AttachCircle(0.5f, 0.5f, _agentBody, new Vector2(-2f, 0f));
//Right arm
FixtureFactory.AttachRectangle(1.5f, 0.4f, 1f, new Vector2(1f, 0f), _agentBody);
FixtureFactory.AttachCircle(0.5f, 0.5f, _agentBody, new Vector2(2f, 0f));
//Top arm
FixtureFactory.AttachRectangle(0.4f, 1.5f, 1f, new Vector2(0f, 1f), _agentBody);
FixtureFactory.AttachCircle(0.5f, 0.5f, _agentBody, new Vector2(0f, 2f));
//Bottom arm
FixtureFactory.AttachRectangle(0.4f, 1.5f, 1f, new Vector2(0f, -1f), _agentBody);
FixtureFactory.AttachCircle(0.5f, 0.5f, _agentBody, new Vector2(0f, -2f));
_screen = screen;
//GFX
AssetCreator creator = _screen.ScreenManager.Assets;
_box = new Sprite(creator.TextureFromVertices(PolygonTools.CreateRectangle(1.75f, 0.2f),
MaterialType.Blank, Color.White, 1f));
_knob = new Sprite(creator.CircleTexture(0.5f, MaterialType.Blank, Color.Orange, 1f));
_offset = ConvertUnits.ToDisplayUnits(2f);
}
public Objects(World world, PhysicsGameScreen screen, Vector2 startPosition, Vector2 endPosition, int count,
float radius, ObjectType type)
{
_bodies = new List<Body>(count);
CollidesWith = Category.All;
CollisionCategories = Category.All;
for (int i = 0; i < count; ++i)
{
switch (type)
{
case ObjectType.Circle:
_bodies.Add(BodyFactory.CreateCircle(world, radius, 1f));
break;
case ObjectType.Rectangle:
_bodies.Add(BodyFactory.CreateRectangle(world, radius, radius, 1f));
break;
case ObjectType.Star:
_bodies.Add(BodyFactory.CreateGear(world, radius, 10, 0f, 1f, 1f));
break;
case ObjectType.Gear:
_bodies.Add(BodyFactory.CreateGear(world, radius, 10, 100f, 1f, 1f));
break;
}
}
for (int i = 0; i < _bodies.Count; ++i)
{
Body body = _bodies[i];
body.BodyType = BodyType.Dynamic;
body.Position = Vector2.Lerp(startPosition, endPosition, i / (float)(count - 1));
body.Restitution = .7f;
body.Friction = .2f;
body.CollisionCategories = CollisionCategories;
body.CollidesWith = CollidesWith;
}
_screen = screen;
//GFX
AssetCreator creator = _screen.ScreenManager.Assets;
switch (type)
{
case ObjectType.Circle:
_object = new Sprite(creator.CircleTexture(radius, MaterialType.Dots, Color.DarkRed, 0.8f));
break;
case ObjectType.Rectangle:
_object =
new Sprite(creator.TextureFromVertices(PolygonTools.CreateRectangle(radius / 2f, radius / 2f),
MaterialType.Dots, Color.Blue, 0.8f));
break;
case ObjectType.Star:
_object = new Sprite(creator.TextureFromVertices(PolygonTools.CreateGear(radius, 10, 0f, 1f),
MaterialType.Dots, Color.Yellow, 0.8f));
break;
case ObjectType.Gear:
_object = new Sprite(creator.TextureFromVertices(PolygonTools.CreateGear(radius, 10, 100f, 1f),
MaterialType.Dots, Color.DarkGreen, 0.8f));
break;
}
}
public TheoJansenWalker(World world, PhysicsGameScreen screen, Vector2 position)
{
_position = position;
_motorSpeed = 2.0f;
_motorOn = true;
_screen = screen;
_walkerJoints = new List<DistanceJoint>();
_leftShoulders = new Body[3];
_rightShoulders = new Body[3];
_leftLegs = new Body[3];
_rightLegs = new Body[3];
Vector2 pivot = new Vector2(0f, -0.8f);
// Chassis
{
PolygonShape shape = new PolygonShape(1f);
shape.SetAsBox(2.5f, 1.0f);
_body =
new Sprite(_screen.ScreenManager.Assets.TextureFromShape(shape, MaterialType.Blank,
Color.Beige, 1f));
_chassis = BodyFactory.CreateBody(world);
_chassis.BodyType = BodyType.Dynamic;
_chassis.Position = pivot + _position;
Fixture fixture = _chassis.CreateFixture(shape);
fixture.CollisionGroup = -1;
}
{
CircleShape shape = new CircleShape(1.6f, 1f);
_engine =
new Sprite(_screen.ScreenManager.Assets.TextureFromShape(shape, MaterialType.Waves,
Color.Beige * 0.8f, 1f));
_wheel = BodyFactory.CreateBody(world);
_wheel.BodyType = BodyType.Dynamic;
_wheel.Position = pivot + _position;
Fixture fixture = _wheel.CreateFixture(shape);
fixture.CollisionGroup = -1;
}
{
_motorJoint = new RevoluteJoint(_wheel, _chassis, _wheel.GetLocalPoint(_chassis.Position), Vector2.Zero);
_motorJoint.CollideConnected = false;
_motorJoint.MotorSpeed = _motorSpeed;
_motorJoint.MaxMotorTorque = 400f;
_motorJoint.MotorEnabled = _motorOn;
world.AddJoint(_motorJoint);
}
Vector2 wheelAnchor = pivot + new Vector2(0f, 0.8f);
CreateLegTextures();
CreateLeg(world, -1f, wheelAnchor, 0);
CreateLeg(world, 1f, wheelAnchor, 0);
_leftLeg.Origin = AssetCreator.CalculateOrigin(_leftLegs[0]);
_leftShoulder.Origin = AssetCreator.CalculateOrigin(_leftShoulders[0]);
_rightLeg.Origin = AssetCreator.CalculateOrigin(_rightLegs[0]);
_rightShoulder.Origin = AssetCreator.CalculateOrigin(_rightShoulders[0]);
_wheel.SetTransform(_wheel.Position, 120f * Settings.Pi / 180f);
CreateLeg(world, -1f, wheelAnchor, 1);
CreateLeg(world, 1f, wheelAnchor, 1);
_wheel.SetTransform(_wheel.Position, -120f * Settings.Pi / 180f);
CreateLeg(world, -1f, wheelAnchor, 2);
CreateLeg(world, 1f, wheelAnchor, 2);
}
public Border(World world, PhysicsGameScreen screen, Viewport viewport)
{
_world = world;
_screen = screen;
float halfWidth = ConvertUnits.ToSimUnits(viewport.Width) / 2f - 0.75f;
float halfHeight = ConvertUnits.ToSimUnits(viewport.Height) / 2f - 0.75f;
Vertices borders = new Vertices(4);
borders.Add(new Vector2(-halfWidth, halfHeight));
borders.Add(new Vector2(halfWidth, halfHeight));
borders.Add(new Vector2(halfWidth, -halfHeight));
borders.Add(new Vector2(-halfWidth, -halfHeight));
_anchor = BodyFactory.CreateLoopShape(_world, borders);
_anchor.CollisionCategories = Category.All;
_anchor.CollidesWith = Category.All;
_basicEffect = new BasicEffect(_screen.ScreenManager.GraphicsDevice);
_basicEffect.VertexColorEnabled = true;
_basicEffect.TextureEnabled = true;
_basicEffect.Texture = _screen.ScreenManager.Content.Load<Texture2D>("Materials/pavement");
VertexPositionColorTexture[] vertice = new VertexPositionColorTexture[8];
vertice[0] = new VertexPositionColorTexture(new Vector3(-halfWidth, -halfHeight, 0f),
Color.LightGray, new Vector2(-halfWidth, -halfHeight) / 5.25f);
vertice[1] = new VertexPositionColorTexture(new Vector3(halfWidth, -halfHeight, 0f),
Color.LightGray, new Vector2(halfWidth, -halfHeight) / 5.25f);
vertice[2] = new VertexPositionColorTexture(new Vector3(halfWidth, halfHeight, 0f),
Color.LightGray, new Vector2(halfWidth, halfHeight) / 5.25f);
vertice[3] = new VertexPositionColorTexture(new Vector3(-halfWidth, halfHeight, 0f),
Color.LightGray, new Vector2(-halfWidth, halfHeight) / 5.25f);
vertice[4] = new VertexPositionColorTexture(new Vector3(-halfWidth - 2f, -halfHeight - 2f, 0f),
Color.LightGray,
new Vector2(-halfWidth - 2f, -halfHeight - 2f) / 5.25f);
vertice[5] = new VertexPositionColorTexture(new Vector3(halfWidth + 2f, -halfHeight - 2f, 0f),
Color.LightGray,
new Vector2(halfWidth + 2f, -halfHeight - 2f) / 5.25f);
vertice[6] = new VertexPositionColorTexture(new Vector3(halfWidth + 2f, halfHeight + 2f, 0f),
Color.LightGray,
new Vector2(halfWidth + 2f, halfHeight + 2f) / 5.25f);
vertice[7] = new VertexPositionColorTexture(new Vector3(-halfWidth - 2f, halfHeight + 2f, 0f),
Color.LightGray,
new Vector2(-halfWidth - 2f, halfHeight + 2f) / 5.25f);
_borderVerts = new VertexPositionColorTexture[24];
_borderVerts[0] = vertice[0];
_borderVerts[1] = vertice[5];
_borderVerts[2] = vertice[4];
_borderVerts[3] = vertice[0];
_borderVerts[4] = vertice[1];
_borderVerts[5] = vertice[5];
_borderVerts[6] = vertice[1];
_borderVerts[7] = vertice[6];
_borderVerts[8] = vertice[5];
_borderVerts[9] = vertice[1];
_borderVerts[10] = vertice[2];
_borderVerts[11] = vertice[6];
_borderVerts[12] = vertice[2];
_borderVerts[13] = vertice[7];
_borderVerts[14] = vertice[6];
_borderVerts[15] = vertice[2];
_borderVerts[16] = vertice[3];
_borderVerts[17] = vertice[7];
_borderVerts[18] = vertice[3];
_borderVerts[19] = vertice[4];
_borderVerts[20] = vertice[7];
_borderVerts[21] = vertice[3];
_borderVerts[22] = vertice[0];
_borderVerts[23] = vertice[4];
}