void SetupViewport()
{
var renderer = GetSubsystem<Renderer>();
var graphics = GetSubsystem<Graphics>();
renderer.NumViewports = 2;
// Set up the front camera viewport
Viewport viewport = new Viewport(scene, CameraNode.GetComponent<Camera>());
renderer.SetViewport(0, viewport);
// Clone the default render path so that we do not interfere with the other viewport, then add
// bloom and FXAA post process effects to the front viewport. Render path commands can be tagged
// for example with the effect name to allow easy toggling on and off. We start with the effects
// disabled.
var cache = GetSubsystem<ResourceCache>();
RenderPath effectRenderPath = viewport.GetRenderPath().Clone();
effectRenderPath.Append(cache.Get<XMLFile>("PostProcess/Bloom.xml"));
effectRenderPath.Append(cache.Get<XMLFile>("PostProcess/FXAA2.xml"));
// Make the bloom mixing parameter more pronounced
effectRenderPath.SetShaderParameter("BloomMix", new Vector2(0.9f, 0.6f));
effectRenderPath.SetEnabled("Bloom", false);
effectRenderPath.SetEnabled("FXAA2", false);
viewport.SetRenderPath(effectRenderPath);
// Set up the rear camera viewport on top of the front view ("rear view mirror")
// The viewport index must be greater in that case, otherwise the view would be left behind
IntRect rect = new IntRect(graphics.Width*2/3, 32, graphics.Width - 32, graphics.Height/3);
Viewport rearViewport = new Viewport(scene, rearCameraNode.GetComponent<Camera>(), rect);
renderer.SetViewport(1, rearViewport);
}
void SetupViewport()
{
var renderer = GetSubsystem<Renderer>();
var cache = GetSubsystem<ResourceCache>();
renderer.SetViewport(0, new Viewport(scene, CameraNode.GetComponent<Camera>()));
// Create a mathematical plane to represent the water in calculations
waterPlane = new Plane(waterNode.WorldRotation * new Vector3(0.0f, 1.0f, 0.0f), waterNode.WorldPosition);
// Create a downward biased plane for reflection view clipping. Biasing is necessary to avoid too aggressive clipping
waterClipPlane = new Plane(waterNode.WorldRotation * new Vector3(0.0f, 1.0f, 0.0f), waterNode.WorldPosition - new Vector3(0.0f, 0.1f, 0.0f));
// Create camera for water reflection
// It will have the same farclip and position as the main viewport camera, but uses a reflection plane to modify
// its position when rendering
reflectionCameraNode = CameraNode.CreateChild();
var reflectionCamera = reflectionCameraNode.CreateComponent<Camera>();
reflectionCamera.FarClip = 750.0f;
reflectionCamera.ViewMask= 0x7fffffff; // Hide objects with only bit 31 in the viewmask (the water plane)
reflectionCamera.AutoAspectRatio = false;
reflectionCamera.UseReflection = true;
reflectionCamera.ReflectionPlane = waterPlane;
reflectionCamera.UseClipping = true; // Enable clipping of geometry behind water plane
reflectionCamera.ClipPlane = waterClipPlane;
// The water reflection texture is rectangular. Set reflection camera aspect ratio to match
reflectionCamera.AspectRatio = (float)graphics.Width / graphics.Height;
// View override flags could be used to optimize reflection rendering. For example disable shadows
//reflectionCamera.ViewOverrideFlags = ViewOverrideFlags.DisableShadows;
// Create a texture and setup viewport for water reflection. Assign the reflection texture to the diffuse
// texture unit of the water material
int texSize = 1024;
Texture2D renderTexture = new Texture2D();
renderTexture.SetSize(texSize, texSize, Graphics.GetRGBFormat(), TextureUsage.TEXTURE_RENDERTARGET);
renderTexture.FilterMode = TextureFilterMode.FILTER_BILINEAR;
RenderSurface surface = renderTexture.RenderSurface;
var rttViewport = new Viewport(scene, reflectionCamera);
surface.SetViewport(0, rttViewport);
var waterMat = cache.Get<Material>("Materials/Water.xml");
waterMat.SetTexture(TextureUnit.TU_DIFFUSE, renderTexture);
}
void CreateScene()
{
var cache = GetSubsystem<ResourceCache>();
{
rttScene = new Scene();
// Create octree, use default volume (-1000, -1000, -1000) to (1000, 1000, 1000)
rttScene.CreateComponent<Octree>();
// Create a Zone for ambient light & fog control
Node zoneNode = rttScene.CreateChild("Zone");
Zone zone = zoneNode.CreateComponent<Zone>();
// Set same volume as the Octree, set a close bluish fog and some ambient light
zone.SetBoundingBox(new BoundingBox(-1000.0f, 1000.0f));
zone.AmbientColor = new Color(0.05f, 0.1f, 0.15f);
zone.FogColor = new Color(0.1f, 0.2f, 0.3f);
zone.FogStart = 10.0f;
zone.FogEnd = 100.0f;
// Create randomly positioned and oriented box StaticModels in the scene
const uint numObjects = 2000;
for (uint i = 0; i < numObjects; ++i)
{
Node boxNode = rttScene.CreateChild("Box");
boxNode.Position = new Vector3(NextRandom(200.0f) - 100.0f, NextRandom(200.0f) - 100.0f,
NextRandom(200.0f) - 100.0f);
// Orient using random pitch, yaw and roll Euler angles
boxNode.Rotation = new Quaternion(NextRandom(360.0f), NextRandom(360.0f), NextRandom(360.0f));
StaticModel boxObject = boxNode.CreateComponent<StaticModel>();
boxObject.Model = cache.Get<Model>("Models/Box.mdl");
boxObject.SetMaterial(cache.Get<Material>("Materials/Stone.xml"));
// Add our custom Rotator component which will rotate the scene node each frame, when the scene sends its update event.
// Simply set same rotation speed for all objects
Rotator rotator = new Rotator();
boxNode.AddComponent(rotator);
rotator.SetRotationSpeed(new Vector3(10.0f, 20.0f, 30.0f));
}
// Create a camera for the render-to-texture scene. Simply leave it at the world origin and let it observe the scene
rttCameraNode = rttScene.CreateChild("Camera");
Camera camera = rttCameraNode.CreateComponent<Camera>();
camera.FarClip = 100.0f;
// Create a point light to the camera scene node
Light light = rttCameraNode.CreateComponent<Light>();
light.LightType = LightType.LIGHT_POINT;
light.Range = 30.0f;
}
{
// Create the scene in which we move around
scene = new Scene();
// Create octree, use also default volume (-1000, -1000, -1000) to (1000, 1000, 1000)
scene.CreateComponent<Octree>();
// Create a Zone component for ambient lighting & fog control
Node zoneNode = scene.CreateChild("Zone");
Zone zone = zoneNode.CreateComponent<Zone>();
zone.SetBoundingBox(new BoundingBox(-1000.0f, 1000.0f));
zone.AmbientColor = new Color(0.1f, 0.1f, 0.1f);
zone.FogStart = 100.0f;
zone.FogEnd = 300.0f;
// Create a directional light without shadows
Node lightNode = scene.CreateChild("DirectionalLight");
lightNode.SetDirection(new Vector3(0.5f, -1.0f, 0.5f));
Light light = lightNode.CreateComponent<Light>();
light.LightType = LightType.LIGHT_DIRECTIONAL;
light.Color = new Color(0.2f, 0.2f, 0.2f);
light.SpecularIntensity = 1.0f;
// Create a "floor" consisting of several tiles
for (int y = -5; y <= 5; ++y)
{
for (int x = -5; x <= 5; ++x)
{
Node floorNode = scene.CreateChild("FloorTile");
floorNode.Position = new Vector3(x*20.5f, -0.5f, y*20.5f);
floorNode.Scale = new Vector3(20.0f, 1.0f, 20.0f);
StaticModel floorObject = floorNode.CreateComponent<StaticModel>();
floorObject.Model = cache.Get<Model>("Models/Box.mdl");
floorObject.SetMaterial(cache.Get<Material>("Materials/Stone.xml"));
}
}
// Create a "screen" like object for viewing the second scene. Construct it from two StaticModels, a box for the frame
// and a plane for the actual view
{
Node boxNode = scene.CreateChild("ScreenBox");
boxNode.Position = new Vector3(0.0f, 10.0f, 0.0f);
boxNode.Scale = new Vector3(21.0f, 16.0f, 0.5f);
StaticModel boxObject = boxNode.CreateComponent<StaticModel>();
boxObject.Model = cache.Get<Model>("Models/Box.mdl");
boxObject.SetMaterial(cache.Get<Material>("Materials/Stone.xml"));
Node screenNode = scene.CreateChild("Screen");
screenNode.Position = new Vector3(0.0f, 10.0f, -0.27f);
screenNode.Rotation = new Quaternion(-90.0f, 0.0f, 0.0f);
screenNode.Scale = new Vector3(20.0f, 0.0f, 15.0f);
StaticModel screenObject = screenNode.CreateComponent<StaticModel>();
screenObject.Model = cache.Get<Model>("Models/Plane.mdl");
// Create a renderable texture (1024x768, RGB format), enable bilinear filtering on it
Texture2D renderTexture = new Texture2D();
renderTexture.SetSize(1024, 768, Graphics.GetRGBFormat(), TextureUsage.TEXTURE_RENDERTARGET);
renderTexture.FilterMode = TextureFilterMode.FILTER_BILINEAR;
// Create a new material from scratch, use the diffuse unlit technique, assign the render texture
// as its diffuse texture, then assign the material to the screen plane object
Material renderMaterial = new Material();
renderMaterial.SetTechnique(0, cache.Get<Technique>("Techniques/DiffUnlit.xml"), 0, 0);
renderMaterial.SetTexture(TextureUnit.TU_DIFFUSE, renderTexture);
screenObject.SetMaterial(renderMaterial);
// Get the texture's RenderSurface object (exists when the texture has been created in rendertarget mode)
// and define the viewport for rendering the second scene, similarly as how backbuffer viewports are defined
// to the Renderer subsystem. By default the texture viewport will be updated when the texture is visible
// in the main view
RenderSurface surface = renderTexture.RenderSurface;
Viewport rttViewport = new Viewport(rttScene, rttCameraNode.GetComponent<Camera>());
surface.SetViewport(0, rttViewport);
}
// Create the camera. Limit far clip distance to match the fog
CameraNode = scene.CreateChild("Camera");
var camera = CameraNode.CreateComponent<Camera>();
camera.FarClip = 300.0f;
// Set an initial position for the camera scene node above the plane
CameraNode.Position = new Vector3(0.0f, 7.0f, -30.0f);
}
}
void CreateScene()
{
scene = new Scene();
scene.CreateComponent<Octree>();
scene.CreateComponent<DebugRenderer>();
PhysicsWorld2D physicsWorld = scene.CreateComponent<PhysicsWorld2D>(); // Create 2D physics world component
physicsWorld.DrawJoint = true; // Display the joints (Note that DrawDebugGeometry() must be set to true to acually draw the joints)
drawDebug = true; // Set DrawDebugGeometry() to true
// Create camera
CameraNode = scene.CreateChild("Camera");
// Set camera's position
CameraNode.Position = (new Vector3(0.0f, 0.0f, 0.0f)); // Note that Z setting is discarded; use camera.zoom instead (see MoveCamera() below for example)
camera = CameraNode.CreateComponent<Camera>();
camera.Orthographic = true;
var graphics = GetSubsystem<Graphics>();
camera.OrthoSize = (float)graphics.Height * PixelSize;
camera.Zoom = 1.2f * Math.Min((float)graphics.Width / 1280.0f, (float)graphics.Height / 800.0f); // Set zoom according to user's resolution to ensure full visibility (initial zoom (1.2) is set for full visibility at 1280x800 resolution)
// Set up a viewport to the Renderer subsystem so that the 3D scene can be seen
Viewport viewport = new Viewport(scene, camera);
Renderer renderer = GetSubsystem<Renderer>();
renderer.SetViewport(0, viewport);
Zone zone = renderer.DefaultZone;
zone.FogColor = (new Color(0.1f, 0.1f, 0.1f)); // Set background color for the scene
// Create 4x3 grid
for (uint i = 0; i < 5; ++i)
{
Node edgeNode = scene.CreateChild("VerticalEdge");
RigidBody2D edgeBody = edgeNode.CreateComponent<RigidBody2D>();
if (dummyBody == null)
dummyBody = edgeBody; // Mark first edge as dummy body (used by mouse pick)
CollisionEdge2D edgeShape = edgeNode.CreateComponent<CollisionEdge2D>();
edgeShape.SetVertices(new Vector2(i * 2.5f - 5.0f, -3.0f), new Vector2(i * 2.5f - 5.0f, 3.0f));
edgeShape.Friction = 0.5f; // Set friction
}
for (uint j = 0; j < 4; ++j)
{
Node edgeNode = scene.CreateChild("HorizontalEdge");
/*RigidBody2D edgeBody = */
edgeNode.CreateComponent<RigidBody2D>();
CollisionEdge2D edgeShape = edgeNode.CreateComponent<CollisionEdge2D>();
edgeShape.SetVertices(new Vector2(-5.0f, j * 2.0f - 3.0f), new Vector2(5.0f, j * 2.0f - 3.0f));
edgeShape.Friction = 0.5f; // Set friction
}
var cache = GetSubsystem<ResourceCache>();
// Create a box (will be cloned later)
Node box = scene.CreateChild("Box");
box.Position = (new Vector3(0.8f, -2.0f, 0.0f));
StaticSprite2D boxSprite = box.CreateComponent<StaticSprite2D>();
boxSprite.Sprite = cache.Get<Sprite2D>("Urho2D/Box.png");
RigidBody2D boxBody = box.CreateComponent<RigidBody2D>();
boxBody.BodyType = BodyType2D.BT_DYNAMIC;
boxBody.LinearDamping = 0.0f;
boxBody.AngularDamping = 0.0f;
CollisionBox2D shape = box.CreateComponent<CollisionBox2D>(); // Create box shape
shape.Size = new Vector2(0.32f, 0.32f); // Set size
shape.Density = 1.0f; // Set shape density (kilograms per meter squared)
shape.Friction = 0.5f; // Set friction
shape.Restitution = 0.1f; // Set restitution (slight bounce)
// Create a ball (will be cloned later)
Node ball = scene.CreateChild("Ball");
ball.Position = (new Vector3(1.8f, -2.0f, 0.0f));
StaticSprite2D ballSprite = ball.CreateComponent<StaticSprite2D>();
ballSprite.Sprite = cache.Get<Sprite2D>("Urho2D/Ball.png");
RigidBody2D ballBody = ball.CreateComponent<RigidBody2D>();
ballBody.BodyType = BodyType2D.BT_DYNAMIC;
ballBody.LinearDamping = 0.0f;
ballBody.AngularDamping = 0.0f;
CollisionCircle2D ballShape = ball.CreateComponent<CollisionCircle2D>(); // Create circle shape
ballShape.Radius = 0.16f; // Set radius
ballShape.Density = 1.0f; // Set shape density (kilograms per meter squared)
ballShape.Friction = 0.5f; // Set friction
ballShape.Restitution = 0.6f; // Set restitution: make it bounce
// Create a polygon
Node polygon = scene.CreateChild("Polygon");
polygon.Position = (new Vector3(1.6f, -2.0f, 0.0f));
polygon.SetScale(0.7f);
StaticSprite2D polygonSprite = polygon.CreateComponent<StaticSprite2D>();
polygonSprite.Sprite = cache.Get<Sprite2D>("Urho2D/Aster.png");
RigidBody2D polygonBody = polygon.CreateComponent<RigidBody2D>();
polygonBody.BodyType = BodyType2D.BT_DYNAMIC;
CollisionPolygon2D polygonShape = polygon.CreateComponent<CollisionPolygon2D>();
polygonShape.VertexCount = 6; // Set number of vertices (mandatory when using SetVertex())
polygonShape.SetVertex(0, new Vector2(-0.8f, -0.3f));
polygonShape.SetVertex(1, new Vector2(0.5f, -0.8f));
polygonShape.SetVertex(2, new Vector2(0.8f, -0.3f));
polygonShape.SetVertex(3, new Vector2(0.8f, 0.5f));
polygonShape.SetVertex(4, new Vector2(0.5f, 0.9f));
polygonShape.SetVertex(5, new Vector2(-0.5f, 0.7f));
polygonShape.Density = 1.0f; // Set shape density (kilograms per meter squared)
polygonShape.Friction = 0.3f; // Set friction
polygonShape.Restitution = 0.0f; // Set restitution (no bounce)
// Create a ConstraintDistance2D
CreateFlag("ConstraintDistance2D", -4.97f, 3.0f); // Display Text3D flag
Node boxDistanceNode = box.Clone(CreateMode.REPLICATED);
Node ballDistanceNode = ball.Clone(CreateMode.REPLICATED);
RigidBody2D ballDistanceBody = ballDistanceNode.GetComponent<RigidBody2D>();
boxDistanceNode.Position = (new Vector3(-4.5f, 2.0f, 0.0f));
ballDistanceNode.Position = (new Vector3(-3.0f, 2.0f, 0.0f));
ConstraintDistance2D constraintDistance = boxDistanceNode.CreateComponent<ConstraintDistance2D>(); // Apply ConstraintDistance2D to box
constraintDistance.OtherBody = ballDistanceBody; // Constrain ball to box
constraintDistance.OwnerBodyAnchor = boxDistanceNode.Position2D;
constraintDistance.OtherBodyAnchor = ballDistanceNode.Position2D;
// Make the constraint soft (comment to make it rigid, which is its basic behavior)
constraintDistance.FrequencyHz = 4.0f;
constraintDistance.DampingRatio = 0.5f;
// Create a ConstraintFriction2D ********** Not functional. From Box2d samples it seems that 2 anchors are required, Urho2D only provides 1, needs investigation ***********
CreateFlag("ConstraintFriction2D", 0.03f, 1.0f); // Display Text3D flag
Node boxFrictionNode = box.Clone(CreateMode.REPLICATED);
Node ballFrictionNode = ball.Clone(CreateMode.REPLICATED);
boxFrictionNode.Position = (new Vector3(0.5f, 0.0f, 0.0f));
ballFrictionNode.Position = (new Vector3(1.5f, 0.0f, 0.0f));
ConstraintFriction2D constraintFriction = boxFrictionNode.CreateComponent<ConstraintFriction2D>(); // Apply ConstraintDistance2D to box
constraintFriction.OtherBody = ballFrictionNode.GetComponent<RigidBody2D>(); // Constraint ball to box
// Create a ConstraintGear2D
CreateFlag("ConstraintGear2D", -4.97f, -1.0f); // Display Text3D flag
Node baseNode = box.Clone(CreateMode.REPLICATED);
RigidBody2D tempBody = baseNode.GetComponent<RigidBody2D>(); // Get body to make it static
tempBody.BodyType = BodyType2D.BT_STATIC;
baseNode.Position = (new Vector3(-3.7f, -2.5f, 0.0f));
Node ball1Node = ball.Clone(CreateMode.REPLICATED);
ball1Node.Position = (new Vector3(-4.5f, -2.0f, 0.0f));
RigidBody2D ball1Body = ball1Node.GetComponent<RigidBody2D>();
Node ball2Node = ball.Clone(CreateMode.REPLICATED);
ball2Node.Position = (new Vector3(-3.0f, -2.0f, 0.0f));
RigidBody2D ball2Body = ball2Node.GetComponent<RigidBody2D>();
ConstraintRevolute2D gear1 = baseNode.CreateComponent<ConstraintRevolute2D>(); // Apply constraint to baseBox
gear1.OtherBody = ball1Body; // Constrain ball1 to baseBox
gear1.Anchor = ball1Node.Position2D;
ConstraintRevolute2D gear2 = baseNode.CreateComponent<ConstraintRevolute2D>(); // Apply constraint to baseBox
gear2.OtherBody = ball2Body; // Constrain ball2 to baseBox
gear2.Anchor = ball2Node.Position2D;
ConstraintGear2D constraintGear = ball1Node.CreateComponent<ConstraintGear2D>(); // Apply constraint to ball1
constraintGear.OtherBody = ball2Body; // Constrain ball2 to ball1
constraintGear.OwnerConstraint = gear1;
constraintGear.OtherConstraint = gear2;
constraintGear.Ratio = 1.0f;
ball1Body.ApplyAngularImpulse(0.015f, true); // Animate
// Create a vehicle from a compound of 2 ConstraintWheel2Ds
CreateFlag("ConstraintWheel2Ds compound", -2.45f, -1.0f); // Display Text3D flag
Node car = box.Clone(CreateMode.REPLICATED);
car.Scale = new Vector3(4.0f, 1.0f, 0.0f);
car.Position = (new Vector3(-1.2f, -2.3f, 0.0f));
StaticSprite2D tempSprite = car.GetComponent<StaticSprite2D>(); // Get car Sprite in order to draw it on top
tempSprite.OrderInLayer = 0; // Draw car on top of the wheels (set to -1 to draw below)
Node ball1WheelNode = ball.Clone(CreateMode.REPLICATED);
ball1WheelNode.Position = (new Vector3(-1.6f, -2.5f, 0.0f));
Node ball2WheelNode = ball.Clone(CreateMode.REPLICATED);
ball2WheelNode.Position = (new Vector3(-0.8f, -2.5f, 0.0f));
ConstraintWheel2D wheel1 = car.CreateComponent<ConstraintWheel2D>();
wheel1.OtherBody = ball1WheelNode.GetComponent<RigidBody2D>();
wheel1.Anchor = ball1WheelNode.Position2D;
wheel1.Axis = new Vector2(0.0f, 1.0f);
wheel1.MaxMotorTorque = 20.0f;
wheel1.FrequencyHz = 4.0f;
wheel1.DampingRatio = 0.4f;
ConstraintWheel2D wheel2 = car.CreateComponent<ConstraintWheel2D>();
wheel2.OtherBody = ball2WheelNode.GetComponent<RigidBody2D>();
wheel2.Anchor = ball2WheelNode.Position2D;
wheel2.Axis = new Vector2(0.0f, 1.0f);
wheel2.MaxMotorTorque = 10.0f;
wheel2.FrequencyHz = 4.0f;
wheel2.DampingRatio = 0.4f;
// ConstraintMotor2D
CreateFlag("ConstraintMotor2D", 2.53f, -1.0f); // Display Text3D flag
Node boxMotorNode = box.Clone(CreateMode.REPLICATED);
tempBody = boxMotorNode.GetComponent<RigidBody2D>(); // Get body to make it static
tempBody.BodyType = BodyType2D.BT_STATIC;
Node ballMotorNode = ball.Clone(CreateMode.REPLICATED);
boxMotorNode.Position = (new Vector3(3.8f, -2.1f, 0.0f));
ballMotorNode.Position = (new Vector3(3.8f, -1.5f, 0.0f));
ConstraintMotor2D constraintMotor = boxMotorNode.CreateComponent<ConstraintMotor2D>();
constraintMotor.OtherBody = ballMotorNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintMotor.LinearOffset = new Vector2(0.0f, 0.8f); // Set ballNode position relative to boxNode position = (0,0)
constraintMotor.AngularOffset = 0.1f;
constraintMotor.MaxForce = 5.0f;
constraintMotor.MaxTorque = 10.0f;
constraintMotor.CorrectionFactor = 1.0f;
constraintMotor.CollideConnected = true; // doesn't work
// ConstraintMouse2D is demonstrated in HandleMouseButtonDown() function. It is used to "grasp" the sprites with the mouse.
CreateFlag("ConstraintMouse2D", 0.03f, -1.0f); // Display Text3D flag
// Create a ConstraintPrismatic2D
CreateFlag("ConstraintPrismatic2D", 2.53f, 3.0f); // Display Text3D flag
Node boxPrismaticNode = box.Clone(CreateMode.REPLICATED);
tempBody = boxPrismaticNode.GetComponent<RigidBody2D>(); // Get body to make it static
tempBody.BodyType = BodyType2D.BT_STATIC;
Node ballPrismaticNode = ball.Clone(CreateMode.REPLICATED);
boxPrismaticNode.Position = new Vector3(3.3f, 2.5f, 0.0f);
ballPrismaticNode.Position = new Vector3(4.3f, 2.0f, 0.0f);
ConstraintPrismatic2D constraintPrismatic = boxPrismaticNode.CreateComponent<ConstraintPrismatic2D>();
constraintPrismatic.OtherBody = ballPrismaticNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintPrismatic.Axis = new Vector2(1.0f, 1.0f); // Slide from [0,0] to [1,1]
constraintPrismatic.Anchor = new Vector2(4.0f, 2.0f);
constraintPrismatic.LowerTranslation = -1.0f;
constraintPrismatic.UpperTranslation = 0.5f;
constraintPrismatic.EnableLimit = true;
constraintPrismatic.MaxMotorForce = 1.0f;
constraintPrismatic.MotorSpeed = 0.0f;
// ConstraintPulley2D
CreateFlag("ConstraintPulley2D", 0.03f, 3.0f); // Display Text3D flag
Node boxPulleyNode = box.Clone(CreateMode.REPLICATED);
Node ballPulleyNode = ball.Clone(CreateMode.REPLICATED);
boxPulleyNode.Position = (new Vector3(0.5f, 2.0f, 0.0f));
ballPulleyNode.Position = (new Vector3(2.0f, 2.0f, 0.0f));
ConstraintPulley2D constraintPulley = boxPulleyNode.CreateComponent<ConstraintPulley2D>(); // Apply constraint to box
constraintPulley.OtherBody = ballPulleyNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintPulley.OwnerBodyAnchor = boxPulleyNode.Position2D;
constraintPulley.OtherBodyAnchor = ballPulleyNode.Position2D;
constraintPulley.OwnerBodyGroundAnchor = boxPulleyNode.Position2D + new Vector2(0.0f, 1.0f);
constraintPulley.OtherBodyGroundAnchor = ballPulleyNode.Position2D + new Vector2(0.0f, 1.0f);
constraintPulley.Ratio = 1.0f; // Weight ratio between ownerBody and otherBody
// Create a ConstraintRevolute2D
CreateFlag("ConstraintRevolute2D", -2.45f, 3.0f); // Display Text3D flag
Node boxRevoluteNode = box.Clone(CreateMode.REPLICATED);
tempBody = boxRevoluteNode.GetComponent<RigidBody2D>(); // Get body to make it static
tempBody.BodyType = BodyType2D.BT_STATIC;
Node ballRevoluteNode = ball.Clone(CreateMode.REPLICATED);
boxRevoluteNode.Position = (new Vector3(-2.0f, 1.5f, 0.0f));
ballRevoluteNode.Position = (new Vector3(-1.0f, 2.0f, 0.0f));
ConstraintRevolute2D constraintRevolute = boxRevoluteNode.CreateComponent<ConstraintRevolute2D>(); // Apply constraint to box
constraintRevolute.OtherBody = ballRevoluteNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintRevolute.Anchor = new Vector2(-1.0f, 1.5f);
constraintRevolute.LowerAngle = -1.0f; // In radians
constraintRevolute.UpperAngle = 0.5f; // In radians
constraintRevolute.EnableLimit = true;
constraintRevolute.MaxMotorTorque = 10.0f;
constraintRevolute.MotorSpeed = 0.0f;
constraintRevolute.EnableMotor = true;
// Create a ConstraintRope2D
CreateFlag("ConstraintRope2D", -4.97f, 1.0f); // Display Text3D flag
Node boxRopeNode = box.Clone(CreateMode.REPLICATED);
tempBody = boxRopeNode.GetComponent<RigidBody2D>();
tempBody.BodyType = BodyType2D.BT_STATIC;
Node ballRopeNode = ball.Clone(CreateMode.REPLICATED);
boxRopeNode.Position = (new Vector3(-3.7f, 0.7f, 0.0f));
ballRopeNode.Position = (new Vector3(-4.5f, 0.0f, 0.0f));
ConstraintRope2D constraintRope = boxRopeNode.CreateComponent<ConstraintRope2D>();
constraintRope.OtherBody = ballRopeNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintRope.OwnerBodyAnchor = new Vector2(0.0f, -0.5f); // Offset from box (OwnerBody) : the rope is rigid from OwnerBody center to this ownerBodyAnchor
constraintRope.MaxLength = 0.9f; // Rope length
constraintRope.CollideConnected = true;
// Create a ConstraintWeld2D
CreateFlag("ConstraintWeld2D", -2.45f, 1.0f); // Display Text3D flag
Node boxWeldNode = box.Clone(CreateMode.REPLICATED);
Node ballWeldNode = ball.Clone(CreateMode.REPLICATED);
boxWeldNode.Position = (new Vector3(-0.5f, 0.0f, 0.0f));
ballWeldNode.Position = (new Vector3(-2.0f, 0.0f, 0.0f));
ConstraintWeld2D constraintWeld = boxWeldNode.CreateComponent<ConstraintWeld2D>();
constraintWeld.OtherBody = ballWeldNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintWeld.Anchor = boxWeldNode.Position2D;
constraintWeld.FrequencyHz = 4.0f;
constraintWeld.DampingRatio = 0.5f;
// Create a ConstraintWheel2D
CreateFlag("ConstraintWheel2D", 2.53f, 1.0f); // Display Text3D flag
Node boxWheelNode = box.Clone(CreateMode.REPLICATED);
Node ballWheelNode = ball.Clone(CreateMode.REPLICATED);
boxWheelNode.Position = (new Vector3(3.8f, 0.0f, 0.0f));
ballWheelNode.Position = (new Vector3(3.8f, 0.9f, 0.0f));
ConstraintWheel2D constraintWheel = boxWheelNode.CreateComponent<ConstraintWheel2D>();
constraintWheel.OtherBody = ballWheelNode.GetComponent<RigidBody2D>(); // Constrain ball to box
constraintWheel.Anchor = ballWheelNode.Position2D;
constraintWheel.Axis = new Vector2(0.0f, 1.0f);
constraintWheel.EnableMotor = true;
constraintWheel.MaxMotorTorque = 1.0f;
constraintWheel.MotorSpeed = 0.0f;
constraintWheel.FrequencyHz = 4.0f;
constraintWheel.DampingRatio = 0.5f;
constraintWheel.CollideConnected = true; // doesn't work
}