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)); }
private void CreateChassis(World world, Vector2 pivot, AssetCreator assets) { { PolygonShape shape = new PolygonShape(1f); shape.Vertices = PolygonTools.CreateRectangle(5f / 2f, 2.0f / 2f); _body = new Sprite(assets.TextureFromShape(shape, MaterialType.Blank, Color.Beige, 1f)); _chassis = world.CreateBody(); _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(assets.TextureFromShape(shape, MaterialType.Waves, Color.Beige * 0.8f, 1f)); _wheel = world.CreateBody(); _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 = true; world.Add(_motorJoint); } }
private void CreateGFX(AssetCreator assets) { // create sprite based on body _circleSprite = new Sprite(assets.TextureFromShape(_ball.FixtureList[0].Shape, MaterialType.Waves, Color.Brown, 1f)); }