protected override void OnShow(Node node, Asset asset)
{
node.SetScale(1f);
ParticleEffect2D particleEffect = ResourceCache.GetParticleEffect2D(asset.RelativePathToAsset);
if (particleEffect == null)
return;
ParticleEmitter2D particleEmitter = node.CreateComponent<ParticleEmitter2D>();
particleEmitter.Effect = particleEffect;
App.Viewport.SetClearColor(Color.Black);
//TODO: remove it and let user to control position by mouse
node.RunActions(new RepeatForever(new RotateAroundBy(0.5f, new Vector3(1, 0, 0), 0, 0, 90, TransformSpace.Parent)));
}
void CreateScene()
{
scene = new Scene();
scene.CreateComponent <Octree>();
// Create camera node
CameraNode = scene.CreateChild("Camera");
// Set camera's position
CameraNode.Position = (new Vector3(0.0f, 0.0f, -10.0f));
Camera camera = CameraNode.CreateComponent <Camera>();
camera.Orthographic = true;
var graphics = 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)
var cache = ResourceCache;
ParticleEffect2D particleEffect = cache.GetParticleEffect2D("Urho2D/sun.pex");
if (particleEffect == null)
{
return;
}
particleNode = scene.CreateChild("ParticleEmitter2D");
ParticleEmitter2D particleEmitter = particleNode.CreateComponent <ParticleEmitter2D>();
particleEmitter.Effect = particleEffect;
ParticleEffect2D greenSpiralEffect = cache.GetParticleEffect2D("Urho2D/greenspiral.pex");
if (greenSpiralEffect == null)
{
return;
}
Node greenSpiralNode = scene.CreateChild("GreenSpiral");
ParticleEmitter2D greenSpiralEmitter = greenSpiralNode.CreateComponent <ParticleEmitter2D>();
greenSpiralEmitter.Effect = greenSpiralEffect;
}
public Vehicle CreateChassis(Vector2 colliderCenter, float colliderRadius, int massDensity, Vector3 exhaustPosition,
ParticleEffect2D exhaustParticles, Sound engineSound, Sound tireSound, Sound[] suspensionSounds,
int horsePower, int maxSpeedFwd, int maxSpeedBwd, int rollForce)
{
// We set out private fields
_horsePower = horsePower;
_maxSpdFwd = maxSpeedFwd;
_maxSpdBwd = maxSpeedBwd;
_rollForce = rollForce;
_rigidBody = GetComponent <RigidBody2D>();
// We add the collider (circle collider at the moment)
var col = Racer2D.AddCollider <CollisionCircle2D>(Node, dens: massDensity, fric: 0);
col.SetRadius(colliderRadius);
col.SetCenter(colliderCenter);
// We create the exhaust particle system
var exhaustParticlesNode = Node.CreateChild();
exhaustParticlesNode.SetPosition(exhaustPosition);
_exhaustParticles = exhaustParticlesNode.CreateComponent <ParticleEmitter2D>();
_exhaustParticles.SetEffect(exhaustParticles);
// We setup the engine sound and other sound effect
engineSound.SetLooped(true);
_soundSource = Node.CreateComponent <SoundSource3D>();
_soundSource.SetNearDistance(10);
_soundSource.SetFarDistance(50);
_accelSound = engineSound;
_brakeSound = tireSound;
_suspensionSoundSource = Node.CreateComponent <SoundSource3D>();
_suspensionSounds = suspensionSounds;
// We return the Vehicle for convenience, since this function is intended to be the vehicle's init function
return(this);
}
public Node CreateWheel(Sprite2D sprite, Vector2 relativePosition, float radius, int suspensionFrequency, float suspensionDamping,
ParticleEffect2D particles, float distanceToEmitParticles)
{
Node wheelNode = Racer2D.CreateSpriteNode(sprite);
wheelNode.SetPosition2D(relativePosition);
// CreateSpriteNode adds a RigidBody for us, so we get it here
RigidBody2D wheelRigidBody = wheelNode.GetComponent <RigidBody2D>();
// We activate CCD
wheelRigidBody.SetBullet(true);
Racer2D.AddCollider <CollisionCircle2D>(wheelNode).SetRadius(radius);
// The Box2D wheel joint provides spring for simulating suspension
ConstraintWheel2D wheelJoint = Node.CreateComponent <ConstraintWheel2D>();
wheelJoint.SetOtherBody(wheelRigidBody);
wheelJoint.SetAnchor(relativePosition);
wheelJoint.SetAxis(Vector2.UnitY);
wheelJoint.SetFrequencyHz(suspensionFrequency);
wheelJoint.SetDampingRatio(suspensionDamping);
// Each wheel has a particle emitter to emit particles when it's in contact with the surface
Node particlesNode = Node.Scene.CreateChild();
particlesNode.SetPosition(new Vector3(relativePosition.X, relativePosition.Y, 14));
ParticleEmitter2D particleEmitter = particlesNode.CreateComponent <ParticleEmitter2D>();
particleEmitter.SetEffect(particles);
// We create a new Wheel struct and add to the _wheels list
_wheels.Add(new Wheel(wheelRigidBody, wheelJoint, particleEmitter, distanceToEmitParticles));
return(wheelNode);
}
public override bool TryParsePrefab(string text, out ParticleEffect2D value)
{
throw new System.NotImplementedException();
}
public override void SetUrho(ParticleEmitter2D instance, ParticleEffect2D value)
{
instance.Effect = value;
}
public override void SetPrefab(ParticleEmitter2DPrefab instance, ParticleEffect2D value)
{
instance.Effect = value;
}
