public override void Update(GameTime gameTime)
{
// Move the directional light in a circle.
float deltaTimeF = (float)gameTime.ElapsedGameTime.TotalSeconds;
_lightAngle += 0.3f * deltaTimeF;
var position = QuaternionF.CreateRotationY(_lightAngle).Rotate(new Vector3F(6, 6, 0));
// Make the light look at the world space origin.
var lightTarget = Vector3F.Zero;
var lookAtMatrix = Matrix44F.CreateLookAt(position, lightTarget, Vector3F.Up);
// A look-at matrix is the inverse of a normal world or pose matrix.
_mainDirectionalLightNode.PoseWorld =
new Pose(lookAtMatrix.Translation, lookAtMatrix.Minor).Inverse;
// Compute shadow matrix for the new light direction.
var lightRayDirection = (lightTarget - position);
_shadowMatrix = ProjectedShadowRenderer.CreateShadowMatrix(
new Plane(new Vector3F(0, 1, 0), 0.01f), new Vector4F(-lightRayDirection, 0));
// Update the scene - this must be called once per frame.
_scene.Update(gameTime.ElapsedGameTime);
base.Update(gameTime);
}
public override void Update(GameTime gameTime)
{
_debugRenderer.Clear();
if (_avatarPose == null)
{
// Must wait till renderer is ready. Before that we do not get skeleton info.
if (_avatarRenderer.State == AvatarRendererState.Ready)
{
// Create AvatarPose.
_avatarPose = new AvatarPose(_avatarRenderer);
// A 'bone transform' is the transformation of a bone relative to its bind pose.
// Bone transforms define the pose of a skeleton.
// Rotate arm of avatar.
SkeletonPose skeletonPose = _avatarPose.SkeletonPose;
int shoulderIndex = skeletonPose.Skeleton.GetIndex("ShoulderLeft");
skeletonPose.SetBoneTransform(shoulderIndex, new SrtTransform(QuaternionF.CreateRotationZ(-0.9f)));
// The class SkeletonHelper provides some useful extension methods.
// One is SetBoneRotationAbsolute() which sets the orientation of a bone relative
// to model space.
// Rotate elbow to make the lower arm point forward.
int elbowIndex = skeletonPose.Skeleton.GetIndex("ElbowLeft");
SkeletonHelper.SetBoneRotationAbsolute(skeletonPose, elbowIndex, QuaternionF.CreateRotationY(ConstantsF.PiOver2));
// Draw avatar skeleton for debugging.
_debugRenderer.DrawSkeleton(skeletonPose, _pose, Vector3F.One, 0.02f, Color.Orange, true);
}
}
}
public void CreateRotationY()
{
float angle = 0.3f;
QuaternionF q = QuaternionF.CreateRotation(Vector3F.UnitY, angle);
QuaternionF qy = QuaternionF.CreateRotationY(angle);
Assert.AreEqual(q, qy);
}
public void MultiplyOperator()
{
Pose p1 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
Pose p2 = new Pose(new Vector3F(-4, 5, -6), QuaternionF.CreateRotationZ(-0.1f));
Assert.IsTrue(Vector4F.AreNumericallyEqual(
p1.ToMatrix44F() * p2.ToMatrix44F() * new Vector4F(1, 2, 3, 1),
p1 * p2 * new Vector4F(1, 2, 3, 1)));
}
public void Equals()
{
Pose p1 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
Pose p2 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
Assert.AreEqual(p1, p2);
Assert.IsTrue(p1.Equals((object)p2));
Assert.IsTrue(p1.Equals(p2));
Assert.IsFalse(p1.Equals(p2.ToMatrix44F()));
}
public PostProcessingSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
// Add a PostProcessingGraphicsScreen. This graphics screen has a Scene and does
// the rendering including post-processing. Please look at PostProcessingGraphicsScreen
// for more details.
GraphicsScreen = new PostProcessingGraphicsScreen(Services);
GraphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, GraphicsScreen);
// GameObjects that need to render stuff will retrieve the DebugRenderers or
// Scene through the service provider.
Services.Register(typeof(DebugRenderer), null, GraphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, GraphicsScreen.Scene);
// Add gravity and damping to the physics simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services, 100);
GameObjectService.Objects.Add(cameraGameObject);
GraphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new StaticSkyObject(Services)
{
SkyExposure = 1
});
GameObjectService.Objects.Add(new GroundObject(Services));
for (int i = 0; i < 20; i++)
{
GameObjectService.Objects.Add(new DynamicObject(Services, 2));
}
for (int i = 0; i < 10; i++)
{
var randomPosition = new Vector3F(
RandomHelper.Random.NextFloat(-5, 5),
0,
RandomHelper.Random.NextFloat(-10, 0));
var randomOrientation = QuaternionF.CreateRotationY(RandomHelper.Random.NextFloat(0, ConstantsF.TwoPi));
GameObjectService.Objects.Add(new DudeObject(Services)
{
Pose = new Pose(randomPosition, randomOrientation)
});
}
}
public override void Update(Microsoft.Xna.Framework.GameTime gameTime)
{
// Get steering angle from arrow keys.
if (InputService.IsDown(Keys.Left))
{
_steeringAngle = 0.7f;
}
else if (InputService.IsDown(Keys.Right))
{
_steeringAngle = -0.7f;
}
else
{
_steeringAngle = 0;
}
// Lock the steering angles of the front wheels.
_frontLeftHinge.Minimum = new Vector2F(_steeringAngle, float.NegativeInfinity);
_frontLeftHinge.Maximum = new Vector2F(_steeringAngle, float.PositiveInfinity);
_frontRightHinge.Minimum = new Vector2F(_steeringAngle, float.NegativeInfinity);
_frontRightHinge.Maximum = new Vector2F(_steeringAngle, float.PositiveInfinity);
// Get velocity from arrow keys.
float wheelVelocity = 0;
if (InputService.IsDown(Keys.Up))
{
wheelVelocity += 60;
}
if (InputService.IsDown(Keys.Down))
{
wheelVelocity -= 60;
}
// The normal rotation axis is the -x axis.
Vector3F axis = -Vector3F.UnitX;
// Rotate the axis by the steering angle.
axis = QuaternionF.CreateRotationY(_steeringAngle).Rotate(axis);
// Set the axes and the velocities of the motors.
_frontLeftMotor.AxisALocal = axis;
_frontLeftMotor.TargetVelocity = wheelVelocity;
_frontRightMotor.AxisALocal = axis;
_frontRightMotor.TargetVelocity = wheelVelocity;
base.Update(gameTime);
}
public void ResetPose()
{
_currentYaw = _defaultYaw;
_currentPitch = _defaultPitch;
if (IsLoaded)
{
// Also update SceneNode.LastPose - this is required for some effect, like
// object motion blur.
CameraNode.SetLastPose(true);
CameraNode.PoseWorld = new Pose(
_defaultPosition,
QuaternionF.CreateRotationY(_currentYaw) * QuaternionF.CreateRotationX(_currentPitch));
}
}
/// <summary>
/// Called when a mesh should be generated for the shape.
/// </summary>
/// <param name="absoluteDistanceThreshold">The absolute distance threshold.</param>
/// <param name="iterationLimit">The iteration limit.</param>
/// <returns>The triangle mesh for this shape.</returns>
protected override TriangleMesh OnGetMesh(float absoluteDistanceThreshold, int iterationLimit)
{
// Estimate required segment angle for given accuracy.
// (Easy to derive from simple drawing of a circle segment with a triangle used to represent
// the segment.)
float alpha = (float)Math.Acos((_radius - absoluteDistanceThreshold) / _radius) * 2;
int numberOfSegments = (int)Math.Ceiling(ConstantsF.TwoPi / alpha);
// Apply the iteration limit - in case absoluteDistanceThreshold is 0.
// Lets say each iteration doubles the number of segments. This is an arbitrary interpretation
// of the "iteration limit".
numberOfSegments = Math.Min(numberOfSegments, 2 << iterationLimit);
alpha = ConstantsF.TwoPi / numberOfSegments;
Vector3F r0 = new Vector3F(_radius, 0, 0);
Vector3F tip = new Vector3F(0, _height, 0);
QuaternionF rotation = QuaternionF.CreateRotationY(alpha);
TriangleMesh mesh = new TriangleMesh();
for (int i = 1; i <= numberOfSegments; i++)
{
Vector3F r1 = rotation.Rotate(r0);
// Bottom triangle
mesh.Add(new Triangle
{
Vertex0 = Vector3F.Zero,
Vertex1 = r1,
Vertex2 = r0,
}, false);
// Side triangle
mesh.Add(new Triangle
{
Vertex0 = r0,
Vertex1 = r1,
Vertex2 = tip,
}, false);
r0 = r1;
}
mesh.WeldVertices();
return(mesh);
}
public void SetVelocityTest()
{
var body = new RigidBody(new BoxShape(1, 2, 3));
body.Pose = new Pose(new Vector3F(10, 20, 30), QuaternionF.CreateRotationY(1.1f));
body.LinearVelocity = new Vector3F(1, 2, 3);
body.AngularVelocity = new Vector3F(4, 5, 6);
Vector3F pointLocal = new Vector3F(0.5f, 0.9f, 1.3f);
Vector3F point = body.Pose.ToWorldPosition(pointLocal);
Vector3F targetVelocity = new Vector3F(7, -8, 9);
Assert.AreNotEqual(targetVelocity, body.GetVelocityOfLocalPoint(pointLocal));
ConstraintHelper.SetVelocityOfWorldPoint(body, point, targetVelocity);
Assert.IsTrue(Vector3F.AreNumericallyEqual(targetVelocity, body.GetVelocityOfLocalPoint(pointLocal)));
}
public void Interpolate()
{
Pose p1 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
Pose p2 = new Pose(new Vector3F(-4, 5, -6), QuaternionF.CreateRotationZ(-0.1f));
Assert.IsTrue(Vector3F.AreNumericallyEqual(p1.Position, Pose.Interpolate(p1, p2, 0).Position));
Assert.IsTrue(Matrix33F.AreNumericallyEqual(p1.Orientation, Pose.Interpolate(p1, p2, 0).Orientation));
Assert.IsTrue(Vector3F.AreNumericallyEqual(p2.Position, Pose.Interpolate(p1, p2, 1).Position));
Assert.IsTrue(Matrix33F.AreNumericallyEqual(p2.Orientation, Pose.Interpolate(p1, p2, 1).Orientation));
Assert.IsTrue(Vector3F.AreNumericallyEqual(InterpolationHelper.Lerp(p1.Position, p2.Position, 0.3f), Pose.Interpolate(p1, p2, 0.3f).Position));
Assert.IsTrue(
QuaternionF.AreNumericallyEqual(
InterpolationHelper.Lerp(QuaternionF.CreateRotation(p1.Orientation), QuaternionF.CreateRotation(p2.Orientation), 0.3f),
QuaternionF.CreateRotation(Pose.Interpolate(p1, p2, 0.3f).Orientation)));
}
public void GetHashCodeTest()
{
Pose p1 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
Pose p2 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
Assert.AreEqual(p1.GetHashCode(), p2.GetHashCode());
p1 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
p2 = new Pose(new Vector3F(2, 1, 3), QuaternionF.CreateRotationY(0.3f));
Assert.AreNotEqual(p1.GetHashCode(), p2.GetHashCode());
// Too bad two rotation matrices that differ only by the sign of the angle
// (+/- angle with same axis) have the same hashcodes. See KB -> .NET --> GetHashCode
//p1 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(0.3f));
//p2 = new Pose(new Vector3F(1, 2, 3), QuaternionF.CreateRotationY(-0.3f));
//Assert.AreNotEqual(p1.GetHashCode(), p2.GetHashCode());
}
private bool _drawDebugInfo; // true if the collision shapes should be drawn for debugging.
public ContentPipelineSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
GraphicsScreen.ClearBackground = true;
GraphicsScreen.BackgroundColor = Color.CornflowerBlue;
SetCamera(new Vector3F(0, 1, 10), 0, 0);
// Initialize collision detection.
// Note: The physics Simulation also has a collision domain (Simulation.CollisionDomain)
// which we could use and which is updated together with the Simulation in
// SampleGame.cs. But in this example we create our own CollisionDomain for demonstration
// purposes.
_collisionDomain = new CollisionDomain(new CollisionDetection());
// Register CollisionDomain in service container.
Services.Register(typeof(CollisionDomain), null, _collisionDomain);
// Add game objects which manage graphics models and their collision representations.
_saucerObject = new SaucerObject(Services)
{
Name = "Saucer"
};
_shipObjectA = new ShipObject(Services)
{
Name = "ShipA"
};
_shipObjectB = new ShipObject(Services)
{
Name = "ShipB"
};
GameObjectService.Objects.Add(_saucerObject);
GameObjectService.Objects.Add(_shipObjectA);
GameObjectService.Objects.Add(_shipObjectB);
// Position the second ship right of the first ship with an arbitrary rotation.
_shipObjectB.Pose = new Pose(new Vector3F(2, 0, 0), QuaternionF.CreateRotationY(0.7f) * QuaternionF.CreateRotationX(1.2f));
// Position the saucer left of the first ship with an arbitrary rotation.
_saucerObject.Pose = new Pose(new Vector3F(-2.5f, 0, 0), QuaternionF.CreateRotationY(0.2f) * QuaternionF.CreateRotationX(0.4f));
}
public override void Update(GameTime gameTime)
{
base.Update(gameTime);
float deltaTime = (float)gameTime.ElapsedGameTime.TotalSeconds;
// Change rotation angle.
if (_moveArmDown)
{
_upperArmAngle -= 0.3f * deltaTime;
}
else
{
_upperArmAngle += 0.3f * deltaTime;
}
// Change direction when a certain angle is reached.
if (Math.Abs(_upperArmAngle) > 0.5f)
{
_moveArmDown = !_moveArmDown;
}
// Get the bone index of the upper arm bone.
var skeleton = _meshNode.Mesh.Skeleton;
int upperArmIndex = skeleton.GetIndex("L_UpperArm");
// Define the desired bone transform.
SrtTransform boneTransform = new SrtTransform(QuaternionF.CreateRotationY(_upperArmAngle));
// Set the new bone transform.
var skeletonPose = _meshNode.SkeletonPose;
skeletonPose.SetBoneTransform(upperArmIndex, boneTransform);
// The class SkeletonHelper provides some useful extension methods.
// One is SetBoneRotationAbsolute() which sets the orientation of a bone relative
// to model space.
int handIndex = skeleton.GetIndex("L_Hand");
SkeletonHelper.SetBoneRotationAbsolute(skeletonPose, handIndex, QuaternionF.CreateRotationX(ConstantsF.Pi));
}
public void ResetPose()
{
positionFilter.Reset();
orientationFilter.Reset();
positionFilter.RawValue[0] = _defaultPosition.X;
positionFilter.RawValue[1] = _defaultPosition.Y;
positionFilter.RawValue[2] = _defaultPosition.Z;
orientationFilter.RawValue[0] = _defaultYaw;
orientationFilter.RawValue[1] = _defaultPitch;
if (IsLoaded)
{
// Also update SceneNode.LastPose - this is required for some effect, like
// object motion blur.
CameraNode.SetLastPose(true);
CameraNode.PoseWorld = new Pose(
_defaultPosition,
QuaternionF.CreateRotationY(_defaultYaw) * QuaternionF.CreateRotationX(_defaultPitch));
}
}
public Vector3F GetFogColor(int numberOfSamples, float elevation)
{
var forward = new Vector3F((float)Math.Cos(elevation), (float)Math.Sin(elevation), 0);
Debug.Assert(forward.IsNumericallyNormalized);
var color = new Vector3F();
for (int i = numberOfSamples - 1; i >= 0; i--)
{
Vector3F sampleDirection = QuaternionF.CreateRotationY(ConstantsF.TwoPi / numberOfSamples).Rotate(forward);
// Note: Crysis computes fog color without phase function and applies the phase function
// in the fog shader. The color difference with and without phase function seems to be
// negligible. The intensity will be about 7 to 12 times lower with the phase function
// (about 7 when the sun is near the horizon, about 12 when the sun is at the zenith).
// We use the phase function because our fog shader might not apply a phase function.
// And if it does apply the phase function, the phase function is normalized to keep the
// average fog brightness constant.
const bool usePhaseFunction = true;
Vector3F transmittance;
Vector3F colorR, colorM;
ComputeScattering(sampleDirection, usePhaseFunction, out transmittance, out colorR, out colorM);
Debug.Assert(sampleDirection.IsNumericallyNormalized);
Vector3F sample = colorR + colorM + GetBaseColor(sampleDirection);
if (sample.IsNaN)
{
numberOfSamples--; // Ignore sample.
}
else
{
color += sample;
}
}
color /= numberOfSamples;
return(color);
}
public override void Update(GameTime gameTime)
{
// Move the directional light in a circle.
float deltaTimeF = (float)gameTime.ElapsedGameTime.TotalSeconds;
_lightAngle += 0.3f * deltaTimeF;
var position = QuaternionF.CreateRotationY(_lightAngle).Rotate(new Vector3F(6, 6, 0));
// Make the light look at the world space origin.
var lightTarget = Vector3F.Zero;
var lookAtMatrix = Matrix44F.CreateLookAt(position, lightTarget, Vector3F.Up);
// A look-at matrix is the inverse of a normal world or pose matrix.
_mainDirectionalLightNode.PoseWorld =
new Pose(lookAtMatrix.Translation, lookAtMatrix.Minor).Inverse;
// Update the light position of the renderer.
// To create a local light shadow (light rays are not parallel), we have to set the light
// position and a 4th component of 1.
//_projectedShadowRenderer.LightPosition = new Vector4F(position, 1);
// To create a directional light shadow (light rays are parallel), we have to set the inverse
// light direction and 0.
var lightRayDirection = (lightTarget - position);
_projectedShadowRenderer.LightPosition = new Vector4F(-lightRayDirection, 0);
// For debugging: Draw coordinate axes at (0, 0, 0).
_debugRenderer.Clear();
_debugRenderer.DrawAxes(Pose.Identity, 1, true);
// Draw light node. (Will be drawn as a coordinate cross.)
_debugRenderer.DrawObject(_mainDirectionalLightNode, Color.Yellow, false, true);
// Update the scene - this must be called once per frame.
_scene.Update(gameTime.ElapsedGameTime);
base.Update(gameTime);
}
protected override void OnUpdate(TimeSpan deltaTime)
{
// Mouse centering (controlled by the MenuComponent) is disabled if the game
// is inactive or if the GUI is active. In these cases, we do not want to move
// the player.
if (!_inputService.EnableMouseCentering)
{
return;
}
float deltaTimeF = (float)deltaTime.TotalSeconds;
// ----- Hulk Mode
// Toggle "Hulk" mode if <H> or <X> (gamepad) is pressed.
if (_inputService.IsPressed(Keys.H, false) || _inputService.IsPressed(Buttons.X, false, LogicalPlayerIndex.One))
{
ToggleHulk();
}
// ----- Crouching
if (_inputService.IsPressed(Keys.LeftShift, false) || _inputService.IsPressed(Buttons.RightTrigger, false, LogicalPlayerIndex.One))
{
Crouch();
}
else if (!_inputService.IsDown(Keys.LeftShift) && !_inputService.IsDown(Buttons.RightTrigger, LogicalPlayerIndex.One) && CharacterController.Height <= 1)
{
StandUp();
}
// ----- Update orientation
// Update _yaw and _pitch.
UpdateOrientation(deltaTimeF);
// Compute the new orientation of the camera.
QuaternionF orientation = QuaternionF.CreateRotationY(_yaw) * QuaternionF.CreateRotationX(_pitch);
// ----- Compute translation
// Create velocity from <W>, <A>, <S>, <D> and gamepad sticks.
Vector3F moveDirection = Vector3F.Zero;
if (Keyboard.GetState().IsKeyDown(Keys.W))
{
moveDirection.Z--;
}
if (Keyboard.GetState().IsKeyDown(Keys.S))
{
moveDirection.Z++;
}
if (Keyboard.GetState().IsKeyDown(Keys.A))
{
moveDirection.X--;
}
if (Keyboard.GetState().IsKeyDown(Keys.D))
{
moveDirection.X++;
}
GamePadState gamePadState = _inputService.GetGamePadState(LogicalPlayerIndex.One);
moveDirection.X += gamePadState.ThumbSticks.Left.X;
moveDirection.Z -= gamePadState.ThumbSticks.Left.Y;
// Rotate the velocity vector from view space to world space.
moveDirection = orientation.Rotate(moveDirection);
// Add velocity from <R>, <F> keys.
// <R> or DPad up is used to move up ("rise").
// <F> or DPad down is used to move down ("fall").
if (Keyboard.GetState().IsKeyDown(Keys.R) || gamePadState.DPad.Up == ButtonState.Pressed)
{
moveDirection.Y++;
}
if (Keyboard.GetState().IsKeyDown(Keys.F) || gamePadState.DPad.Down == ButtonState.Pressed)
{
moveDirection.Y--;
}
// ----- Climbing
bool hasLadderContact = HasLadderContact();
bool hasLedgeContact = HasLedgeContact();
CharacterController.IsClimbing = hasLadderContact || hasLedgeContact;
// When the character is walking (gravity > 0) it cannot walk up/down - only on a ladder.
if (CharacterController.Gravity != 0 && !hasLadderContact)
{
moveDirection.Y = 0;
}
// ----- Moving
moveDirection.TryNormalize();
Vector3F moveVelocity = moveDirection * LinearVelocityMagnitude;
// ----- Jumping
if ((_inputService.IsPressed(Keys.Space, false) || _inputService.IsPressed(Buttons.A, false, LogicalPlayerIndex.One)) &&
(CharacterController.HasGroundContact || CharacterController.IsClimbing))
{
// Jump button was newly pressed and the character has support to start the jump.
_timeSinceLastJump = 0;
}
float jumpVelocity = 0;
if ((_inputService.IsDown(Keys.Space) || _inputService.IsDown(Buttons.A, LogicalPlayerIndex.One)))
{
// Jump button is still down.
if (_timeSinceLastJump + deltaTimeF <= DynamicJumpTime)
{
// The DynamicJumpTime has not been exceeded.
// Set a jump velocity to make the jump higher.
jumpVelocity = JumpVelocity;
}
else if (_timeSinceLastJump <= DynamicJumpTime)
{
// The jump time exceeds DynamicJumpTime in this time step.
// _timeSinceLastJump <= DynamicJumpTime
// _timeSinceLastJump + deltaTime > DynamicJumpTime
// In order to achieve exact, reproducible jump heights we need to split
// the time step:
float deltaTime0 = DynamicJumpTime - _timeSinceLastJump;
float deltaTime1 = deltaTimeF - deltaTime0;
// The first part of the movement is a jump with active jump velocity.
jumpVelocity = JumpVelocity;
_timeSinceLastJump += deltaTime0;
CharacterController.Move(moveVelocity, jumpVelocity, deltaTime0);
// The second part of the movement is a jump without jump velocity.
jumpVelocity = 0;
deltaTimeF = deltaTime1;
}
}
_timeSinceLastJump += deltaTimeF;
// ----- Move the character.
CharacterController.Move(moveVelocity, jumpVelocity, deltaTimeF);
// Draw character controller capsule.
// The character controller is also transparent The hulk is green, of course.
var color = _isHulk ? Color.DarkGreen : Color.Gray;
color.A = 128;
_debugRenderer.DrawObject(CharacterController.Body, color, false, false);
}
// Handle character-related input and move the character.
private void ControlCharacter(float deltaTime)
{
// Compute new orientation from mouse movement.
float deltaYaw = -InputService.MousePositionDelta.X;
_yaw += deltaYaw * deltaTime * 0.1f;
float deltaPitch = -InputService.MousePositionDelta.Y;
_pitch += deltaPitch * deltaTime * 0.1f;
// Limit the pitch angle.
_pitch = MathHelper.Clamp(_pitch, -ConstantsF.PiOver2, ConstantsF.PiOver2);
// Compute new orientation of the camera.
QuaternionF cameraOrientation = QuaternionF.CreateRotationY(_yaw) * QuaternionF.CreateRotationX(_pitch);
// Create velocity from WASD keys.
// TODO: Diagonal movement is faster ;-). Fix this.
Vector3F velocityVector = Vector3F.Zero;
if (Keyboard.GetState().IsKeyDown(Keys.W))
{
velocityVector.Z--;
}
if (Keyboard.GetState().IsKeyDown(Keys.S))
{
velocityVector.Z++;
}
if (Keyboard.GetState().IsKeyDown(Keys.A))
{
velocityVector.X--;
}
if (Keyboard.GetState().IsKeyDown(Keys.D))
{
velocityVector.X++;
}
velocityVector *= 10 * deltaTime;
// Velocity vector is currently in view space. -z is the forward direction.
// We have to convert this vector to world space by rotating it.
velocityVector = QuaternionF.CreateRotationY(_yaw).Rotate(velocityVector);
// New compute desired character controller position in world space:
Vector3F targetPosition = _character.Position + velocityVector;
// Check if user wants to jump.
bool jump = Keyboard.GetState().IsKeyDown(Keys.Space);
// Call character controller to compute a new valid position. The character
// controller slides along obstacles, handles stepping up/down, etc.
_character.Move(targetPosition, deltaTime, jump);
// ----- Set view matrix for graphics.
// For third person we move the eye position back, behind the body (+z direction is
// the "back" direction).
Vector3F thirdPersonDistance = cameraOrientation.Rotate(new Vector3F(0, 0, 6));
// Compute camera pose (= position + orientation).
_cameraNode.PoseWorld = new Pose
{
Position = _character.Position // Floor position of character
+ new Vector3F(0, 1.6f, 0) // + Eye height
+ thirdPersonDistance,
Orientation = cameraOrientation.ToRotationMatrix33()
};
}
// OnLoad() is called when the GameObject is added to the IGameObjectService.
protected override void OnLoad()
{
var content = _services.GetInstance <ContentManager>();
_skyboxNode = new SkyboxNode(content.Load <TextureCube>("Sky2"))
{
Color = new Vector3F(SkyExposure),
};
// The ambient light.
var ambientLight = new AmbientLight
{
Color = new Vector3F(0.9f, 0.9f, 1f),
HdrScale = 0.1f,
Intensity = 0.5f,
HemisphericAttenuation = 0.8f,
};
_ambientLightNode = new LightNode(ambientLight)
{
Name = "Ambient",
};
// The main directional light.
var sunlight = new DirectionalLight
{
Color = new Vector3F(1, 0.9607844f, 0.9078432f),
HdrScale = 0.4f,
DiffuseIntensity = 1,
SpecularIntensity = 1,
};
_sunlightNode = new LightNode(sunlight)
{
Name = "Sunlight",
Priority = 10, // This is the most important light.
PoseWorld = new Pose(QuaternionF.CreateRotationY(-1.4f) * QuaternionF.CreateRotationX(-0.6f)),
// This light uses Cascaded Shadow Mapping.
Shadow = new CascadedShadow
{
#if XBOX
PreferredSize = 512,
#else
PreferredSize = 1024,
#endif
Prefer16Bit = true,
}
};
// Add a lens flare for the key light.
var lensFlare = new LensFlare(true)
{
QuerySize = 0.2f, Size = 0.2f, Name = "Sun Flare"
};
var lensFlareTexture = content.Load <Texture2D>("LensFlare/LensFlares");
var circleTexture = new PackedTexture("Circle", lensFlareTexture, new Vector2F(0, 0), new Vector2F(0.25f, 0.5f));
var glowTexture = new PackedTexture("Glow", lensFlareTexture, new Vector2F(0.25f, 0), new Vector2F(0.25f, 0.5f));
var ringTexture = new PackedTexture("Ring", lensFlareTexture, new Vector2F(0.5f, 0), new Vector2F(0.25f, 0.5f));
var haloTexture = new PackedTexture("Halo", lensFlareTexture, new Vector2F(0.75f, 0), new Vector2F(0.25f, 0.5f));
var sunTexture = new PackedTexture("Sun", lensFlareTexture, new Vector2F(0, 0.5f), new Vector2F(0.25f, 0.5f));
var streaksTexture = new PackedTexture("Streaks", lensFlareTexture, new Vector2F(0.25f, 0.5f), new Vector2F(0.25f, 0.5f));
var flareTexture = new PackedTexture("Flare", lensFlareTexture, new Vector2F(0.5f, 0.5f), new Vector2F(0.25f, 0.5f));
lensFlare.Elements.Add(new LensFlareElement(-0.2f, 0.55f, 0.0f, new Color(175, 175, 255, 20), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 0.9f, 0.0f, new Color(255, 255, 255, 255), new Vector2F(0.5f, 0.5f), sunTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 1.8f, 0.0f, new Color(255, 255, 255, 128), new Vector2F(0.5f, 0.5f), streaksTexture));
lensFlare.Elements.Add(new LensFlareElement(0.0f, 2.6f, 0.0f, new Color(255, 255, 200, 64), new Vector2F(0.5f, 0.5f), glowTexture));
lensFlare.Elements.Add(new LensFlareElement(0.5f, 0.12f, 0.0f, new Color(60, 60, 180, 35), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.55f, 0.46f, 0.0f, new Color(100, 100, 200, 60), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.6f, 0.17f, 0.0f, new Color(120, 120, 220, 40), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(0.85f, 0.2f, 0.0f, new Color(60, 60, 255, 100), new Vector2F(0.5f, 0.5f), ringTexture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 0.2f, 0.0f, new Color(255, 60, 60, 130), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(0.15f, 0.15f, 0.0f, new Color(255, 60, 60, 90), new Vector2F(0.5f, 0.5f), flareTexture));
lensFlare.Elements.Add(new LensFlareElement(1.3f, 0.6f, 0.0f, new Color(60, 60, 255, 180), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.4f, 0.2f, 0.0f, new Color(220, 80, 80, 98), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.5f, 0.1f, 0.0f, new Color(220, 80, 80, 85), new Vector2F(0.5f, 0.5f), circleTexture));
lensFlare.Elements.Add(new LensFlareElement(1.6f, 0.5f, 0.0f, new Color(60, 60, 255, 80), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(1.8f, 0.3f, 0.0f, new Color(90, 60, 255, 110), new Vector2F(0.5f, 0.5f), ringTexture));
lensFlare.Elements.Add(new LensFlareElement(1.95f, 0.5f, 0.0f, new Color(60, 60, 255, 120), new Vector2F(0.5f, 0.5f), haloTexture));
lensFlare.Elements.Add(new LensFlareElement(2.0f, 0.15f, 0.0f, new Color(60, 60, 255, 85), new Vector2F(0.5f, 0.5f), circleTexture));
// Add lens flare as a child of the sunlight.
var lensFlareNode = new LensFlareNode(lensFlare);
_sunlightNode.Children = new SceneNodeCollection();
_sunlightNode.Children.Add(lensFlareNode);
// Add scene nodes to scene graph.
var scene = _services.GetInstance <IScene>();
scene.Children.Add(_skyboxNode);
scene.Children.Add(_ambientLightNode);
scene.Children.Add(_sunlightNode);
}
/// <summary>
/// Called when a mesh should be generated for the shape.
/// </summary>
/// <param name="absoluteDistanceThreshold">The absolute distance threshold.</param>
/// <param name="iterationLimit">The iteration limit.</param>
/// <returns>The triangle mesh for this shape.</returns>
protected override TriangleMesh OnGetMesh(float absoluteDistanceThreshold, int iterationLimit)
{
// Estimate required segment angle for given accuracy.
// (Easy to derive from simple drawing of a circle segment with a triangle used to represent
// the segment.)
float alpha = (float)Math.Acos((Radius - absoluteDistanceThreshold) / Radius) * 2;
int numberOfSegments = (int)Math.Ceiling(ConstantsF.PiOver2 / alpha) * 4;
// Apply the iteration limit - in case absoluteDistanceThreshold is 0.
// Lets say each iteration doubles the number of segments. This is an arbitrary interpretation
// of the "iteration limit".
numberOfSegments = Math.Min(numberOfSegments, 2 << iterationLimit);
alpha = ConstantsF.TwoPi / numberOfSegments;
TriangleMesh mesh = new TriangleMesh();
// The world space vertices are created by rotating "radius vectors" with this rotations.
QuaternionF rotationY = QuaternionF.CreateRotationY(alpha);
QuaternionF rotationZ = QuaternionF.CreateRotationZ(alpha);
// We use two nested loops: In each loop a "radius vector" is rotated further to get a
// new vertex.
Vector3F rLow = Vector3F.UnitX * Radius; // Radius vector for the lower vertex.
for (int i = 1; i <= numberOfSegments / 4; i++)
{
Vector3F rHigh = rotationZ.Rotate(rLow); // Radius vector for the higher vertex.
// In the inner loop we create lines and triangles between 4 vertices, which are created
// with the radius vectors rLow0, rLow1, rHigh0, rHigh1.
Vector3F rLow0 = rLow;
Vector3F rHigh0 = rHigh;
for (int j = 1; j <= numberOfSegments; j++)
{
Vector3F rLow1 = rotationY.Rotate(rLow0);
Vector3F rHigh1 = rotationY.Rotate(rHigh0);
// Two top hemisphere triangles
mesh.Add(new Triangle
{
Vertex0 = new Vector3F(0, Height / 2 - Radius, 0) + rLow0,
Vertex1 = new Vector3F(0, Height / 2 - Radius, 0) + rLow1,
Vertex2 = new Vector3F(0, Height / 2 - Radius, 0) + rHigh0,
}, false);
if (i < numberOfSegments / 4) // At the "northpole" only a triangle is needed. No quad.
{
mesh.Add(new Triangle
{
Vertex0 = new Vector3F(0, Height / 2 - Radius, 0) + rLow1,
Vertex1 = new Vector3F(0, Height / 2 - Radius, 0) + rHigh1,
Vertex2 = new Vector3F(0, Height / 2 - Radius, 0) + rHigh0,
}, false);
}
// Two bottom hemisphere triangles
mesh.Add(new Triangle
{
Vertex0 = new Vector3F(0, -Height / 2 + Radius, 0) - rLow0,
Vertex1 = new Vector3F(0, -Height / 2 + Radius, 0) - rHigh0,
Vertex2 = new Vector3F(0, -Height / 2 + Radius, 0) - rLow1,
}, false);
if (i < numberOfSegments / 4) // At the "southpole" only a triangle is needed. No quad.
{
mesh.Add(new Triangle
{
Vertex0 = new Vector3F(0, -Height / 2 + Radius, 0) - rLow1,
Vertex1 = new Vector3F(0, -Height / 2 + Radius, 0) - rHigh0,
Vertex2 = new Vector3F(0, -Height / 2 + Radius, 0) - rHigh1,
}, false);
}
// Two side triangles
if (i == 1)
{
mesh.Add(new Triangle
{
Vertex0 = new Vector3F(0, -Height / 2 + Radius, 0) + rLow0,
Vertex1 = new Vector3F(0, -Height / 2 + Radius, 0) + rLow1,
Vertex2 = new Vector3F(0, Height / 2 - Radius, 0) + rLow0,
}, false);
mesh.Add(new Triangle
{
Vertex0 = new Vector3F(0, -Height / 2 + Radius, 0) + rLow1,
Vertex1 = new Vector3F(0, Height / 2 - Radius, 0) + rLow1,
Vertex2 = new Vector3F(0, Height / 2 - Radius, 0) + rLow0,
}, false);
}
rLow0 = rLow1;
rHigh0 = rHigh1;
}
rLow = rHigh;
}
mesh.WeldVertices();
return(mesh);
}
public DecalSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
_graphicsScreen = new DeferredGraphicsScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
GameObjectService.Objects.Add(new DeferredGraphicsOptionsObject(Services));
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new StaticSkyObject(Services));
GameObjectService.Objects.Add(new GroundObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
GameObjectService.Objects.Add(new LavaBallsObject(Services));
GameObjectService.Objects.Add(new FogObject(Services));
// Add some static objects.
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Barrier", 1, Pose.Identity));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Cylinder", 1, new Pose(new Vector3F(3, 0, 1), QuaternionF.CreateRotationY(MathHelper.ToRadians(-20)))));
// Add a dynamic object.
GameObjectService.Objects.Add(new DynamicObject(Services, 1));
// Add some predefined decals.
GameObjectService.Objects.Add(new EnvironmentDecalsObject(Services));
}
public EnvironmentLightSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
_graphicsScreen = new DeferredGraphicsScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
GameObjectService.Objects.Add(new DeferredGraphicsOptionsObject(Services));
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new GroundObject(Services));
GameObjectService.Objects.Add(new DudeObject(Services));
var lavaBallsObject = new LavaBallsObject(Services);
GameObjectService.Objects.Add(lavaBallsObject);
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
GameObjectService.Objects.Add(new FogObject(Services));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Barrier", 0.9f, new Pose(new Vector3F(0, 0, -2))));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Cylinder", 0.9f, new Pose(new Vector3F(3, 0, 0), QuaternionF.CreateRotationY(MathHelper.ToRadians(-20)))));
GameObjectService.Objects.Add(new StaticSkyObject(Services));
// Add a few palm trees.
Random random = new Random(12345);
for (int i = 0; i < 10; i++)
{
Vector3F position = new Vector3F(random.NextFloat(-3, -8), 0, random.NextFloat(0, -5));
Matrix33F orientation = Matrix33F.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
// Add some more dynamic objects.
for (int i = 0; i < 5; i++)
{
lavaBallsObject.Spawn();
GameObjectService.Objects.Add(new ProceduralObject(Services));
GameObjectService.Objects.Add(new DynamicObject(Services, 7));
}
// To show the effect of the EnvironmentLight in isolation, disable all other light sources.
//foreach (var light in _graphicsScreen.Scene.GetDescendants().OfType<LightNode>())
// light.IsEnabled = false;
// Add the environment light.
var environmentLight = new EnvironmentLight
{
Color = new Vector3F(0.1f),
DiffuseIntensity = 0,
SpecularIntensity = 1,
EnvironmentMap = ContentManager.Load <TextureCube>("Sky2"),
};
var environmentLightNode = new LightNode(environmentLight)
{
Name = "Environment",
};
_graphicsScreen.Scene.Children.Add(environmentLightNode);
// The EnvironmentLight is a new light type. We have to register a light renderer
// for this light in the LightRenderer of the DeferredGraphicsScreen.
_graphicsScreen.LightBufferRenderer.LightRenderer.Renderers.Add(new EnvironmentLightRenderer(GraphicsService));
// EnvironmentLight.fx uses the specular power of the materials to determine
// which mip map level of the cube is reflected.
// In reality, a high specular power is necessary to reflect the cube map
// with all its detail. To reflect a cube map level with 512 texels size, we
// need a specular power of ~200000.
// To make the reflection effects more obvious, let's change some material properties
// and make the more reflective.
// ProceduralObject:
var proceduralObjects = _graphicsScreen.Scene
.GetDescendants()
.OfType <MeshNode>()
.Where(mn => mn.Mesh.Name == "ProceduralObject")
.Select(mn => mn.Mesh);
foreach (var mesh in proceduralObjects)
{
foreach (var material in mesh.Materials)
{
material["GBuffer"].Set("SpecularPower", 10000f);
material["Material"].Set("DiffuseColor", new Vector3(0.01f));
material["Material"].Set("SpecularColor", new Vector3(1));
}
}
// Frame of GlassBox:
var glassBoxes = _graphicsScreen.Scene
.GetDescendants()
.OfType <ModelNode>()
.Where(mn => mn.Name == "GlassBox")
.Select(mn => ((MeshNode)mn.Children[0]).Mesh);
foreach (var mesh in glassBoxes)
{
foreach (var material in mesh.Materials.Where(m => m.Contains("GBuffer")))
{
material["GBuffer"].Set("SpecularPower", 100000f);
material["Material"].Set("DiffuseColor", new Vector3(0.0f));
material["Material"].Set("SpecularColor", new Vector3(1));
}
}
// LavaBall:
var lavaBalls = _graphicsScreen.Scene
.GetDescendants()
.OfType <ModelNode>()
.Where(mn => mn.Name == "LavaBall")
.Select(mn => ((MeshNode)mn.Children[0]).Mesh);
foreach (var mesh in lavaBalls)
{
foreach (var material in mesh.Materials.Where(m => m.Contains("GBuffer")))
{
material["GBuffer"].Set("SpecularPower", 10000f);
material["Material"].Set("DiffuseColor", new Vector3(0.0f));
material["Material"].Set("SpecularColor", new Vector3(10));
material["Material"].Set("EmissiveColor", new Vector3(0.0f));
}
}
// Ground plane:
var groundPlanes = _graphicsScreen.Scene
.GetDescendants()
.OfType <ModelNode>()
.Where(mn => mn.Name == "Ground")
.Select(mn => ((MeshNode)mn.Children[0]).Mesh);
foreach (var mesh in groundPlanes)
{
foreach (var material in mesh.Materials.Where(m => m.Contains("GBuffer")))
{
material["GBuffer"].Set("SpecularPower", 200000.0f);
material["Material"].Set("DiffuseColor", new Vector3(0.5f));
material["Material"].Set("SpecularColor", new Vector3(0.4f));
}
}
// Please note, XNA does not filter cube maps over cube map borders. Therefore, reflections
// of low resolution mip map levels might show obvious borders between the cube map
// sides. In this case you can change the EnvironmentLight.fx effect to always reflect
// the mip map level 0.
// This is not a problem with MonoGame because DirectX automatically filters cube map borders.
}
// OnUpdate() is called once per frame.
protected override void OnUpdate(TimeSpan deltaTime)
{
// Mouse centering (controlled by the MenuComponent) is disabled if the game
// is inactive or if the GUI is active. In these cases, we do not want to move
// the player.
if (!_inputService.EnableMouseCentering)
{
return;
}
if (!IsEnabled)
{
return;
}
float deltaTimeF = (float)deltaTime.TotalSeconds;
// Compute new orientation from mouse movement, gamepad and touch.
Vector2F mousePositionDelta = _inputService.MousePositionDelta;
GamePadState gamePadState = _inputService.GetGamePadState(LogicalPlayerIndex.One);
Vector2F touchDelta = Vector2F.Zero;
#if MONOGAME || WINDOWS_PHONE
foreach (var gesture in _inputService.Gestures)
{
if (gesture.GestureType == GestureType.FreeDrag)
{
touchDelta += (Vector2F)gesture.Delta;
// If we have touch input, we ignore the mouse movement
mousePositionDelta = Vector2F.Zero;
}
}
#endif
#if WINDOWS_PHONE || IOS
// On Windows Phone touch input also sets the mouse input. --> Ignore mouse data.
mousePositionDelta = Vector2F.Zero;
#endif
float deltaYaw = -mousePositionDelta.X - touchDelta.X - gamePadState.ThumbSticks.Right.X * ThumbStickFactor;
_currentYaw += deltaYaw * deltaTimeF * AngularVelocityMagnitude;
float deltaPitch = -mousePositionDelta.Y - touchDelta.Y + gamePadState.ThumbSticks.Right.Y * ThumbStickFactor;
_currentPitch += deltaPitch * deltaTimeF * AngularVelocityMagnitude;
// Limit the pitch angle to +/- 90°.
_currentPitch = MathHelper.Clamp(_currentPitch, -ConstantsF.PiOver2, ConstantsF.PiOver2);
// Reset camera position if <Home> or <Right Stick> is pressed.
if (_inputService.IsPressed(Keys.Home, false) ||
_inputService.IsPressed(Buttons.RightStick, false, LogicalPlayerIndex.One))
{
ResetPose();
}
// Compute new orientation of the camera.
QuaternionF orientation = QuaternionF.CreateRotationY(_currentYaw) * QuaternionF.CreateRotationX(_currentPitch);
// Create velocity from <W>, <A>, <S>, <D> and <R>, <F> keys.
// <R> or DPad up is used to move up ("rise").
// <F> or DPad down is used to move down ("fall").
Vector3F velocity = Vector3F.Zero;
KeyboardState keyboardState = _inputService.KeyboardState;
if (keyboardState.IsKeyDown(Keys.W))
{
velocity.Z--;
}
if (keyboardState.IsKeyDown(Keys.S))
{
velocity.Z++;
}
if (keyboardState.IsKeyDown(Keys.A))
{
velocity.X--;
}
if (keyboardState.IsKeyDown(Keys.D))
{
velocity.X++;
}
if (keyboardState.IsKeyDown(Keys.R) || gamePadState.DPad.Up == ButtonState.Pressed)
{
velocity.Y++;
}
if (keyboardState.IsKeyDown(Keys.F) || gamePadState.DPad.Down == ButtonState.Pressed)
{
velocity.Y--;
}
// Add velocity from gamepad sticks.
velocity.X += gamePadState.ThumbSticks.Left.X;
velocity.Z -= gamePadState.ThumbSticks.Left.Y;
// Rotate the velocity vector from view space to world space.
velocity = orientation.Rotate(velocity);
if (keyboardState.IsKeyDown(Keys.LeftShift))
{
velocity *= SpeedBoost;
}
// Multiply the velocity by time to get the translation for this frame.
Vector3F translation = velocity * LinearVelocityMagnitude * deltaTimeF;
// Update SceneNode.LastPoseWorld - this is required for some effects, like
// camera motion blur.
CameraNode.LastPoseWorld = CameraNode.PoseWorld;
// Set the new camera pose.
CameraNode.PoseWorld = new Pose(
CameraNode.PoseWorld.Position + translation,
orientation);
}
public CloudQuadSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
_graphicsScreen = new DeferredGraphicsScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
GameObjectService.Objects.Add(new DeferredGraphicsOptionsObject(Services));
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new GroundObject(Services));
GameObjectService.Objects.Add(new DudeObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
GameObjectService.Objects.Add(new LavaBallsObject(Services));
GameObjectService.Objects.Add(new FogObject(Services));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Barrier", 0.9f, new Pose(new Vector3F(0, 0, -2))));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Cylinder", 0.9f, new Pose(new Vector3F(3, 0, 0), QuaternionF.CreateRotationY(MathHelper.ToRadians(-20)))));
// The DynamicSkyObject creates the dynamic sky and lights but no clouds.
var dynamicSkyObject = new DynamicSkyObject(Services, false, false, false);
GameObjectService.Objects.Add(dynamicSkyObject);
// Add a few palm trees.
Random random = new Random(12345);
for (int i = 0; i < 10; i++)
{
Vector3F position = new Vector3F(random.NextFloat(-3, -8), 0, random.NextFloat(0, -5));
Matrix33F orientation = Matrix33F.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
// The model CloudQuad.fbx consists of a textured quad with a custom effect
// "Cloud.fx". The effect uses several effect parameters. Constant effect
// parameters are set in the Cloud.drmat material file.
// The effect parameters, like "World", "WorldViewProjection", "CameraPosition",
// are automatically updated by the graphics service. But the effect
// contains 3 new effect parameters which must be set at runtime:
// "SunDirection", "SunLight" and "SkyLight".
// Therefore we add a custom effect interpreter and a custom effect binder
// which tell the graphics manager what it should do with these parameters.
// The effect interpreter and binder must be registered before the CloudQuad
// model is loaded!
_skyEffectInterpreter = GraphicsService.EffectInterpreters.OfType <SkyEffectInterpreter>().FirstOrDefault();
if (_skyEffectInterpreter == null)
{
_skyEffectInterpreter = new SkyEffectInterpreter();
GraphicsService.EffectInterpreters.Add(_skyEffectInterpreter);
}
_skyEffectBinder = GraphicsService.EffectBinders.OfType <SkyEffectBinder>().FirstOrDefault();
if (_skyEffectBinder == null)
{
_skyEffectBinder = new SkyEffectBinder();
GraphicsService.EffectBinders.Add(_skyEffectBinder);
}
// The effect binder defines several delegates which update the effect parameters
// using values which are computed by the DynamicSkyObject.
_skyEffectBinder.DynamicSkyObject = dynamicSkyObject;
// Add several CloudQuad models in the sky with random scales and poses.
for (int i = 0; i < 20; i++)
{
var scale = new Vector3F(
RandomHelper.Random.NextFloat(100, 200),
0,
RandomHelper.Random.NextFloat(100, 200));
var position = new Vector3F(
RandomHelper.Random.NextFloat(-500, 500),
RandomHelper.Random.NextFloat(100, 200),
RandomHelper.Random.NextFloat(-500, 500));
var orientation = Matrix33F.CreateRotationY(RandomHelper.Random.NextFloat(0, ConstantsF.TwoPi));
GameObjectService.Objects.Add(new StaticObject(Services, "CloudQuad/CloudQuad", scale, new Pose(position, orientation), false, false));
}
}
private void CreateRoad()
{
//RandomHelper.Random = new Random(1234567);
// Set isClosed to true join the start and the end of the road.
bool isClosed = false;
// Create a new TerrainRoadLayer which paints a road onto the terrain.
// The road itself is defined by a mesh which is set later.
_roadLayer = new TerrainRoadLayer(GraphicsService)
{
DiffuseColor = new Vector3F(0.5f),
SpecularColor = new Vector3F(1),
DiffuseTexture = ContentManager.Load <Texture2D>("Terrain/Road-Asphalt-Diffuse"),
NormalTexture = ContentManager.Load <Texture2D>("Terrain/Road-Asphalt-Normal"),
SpecularTexture = ContentManager.Load <Texture2D>("Terrain/Road-Asphalt-Specular"),
HeightTexture = ContentManager.Load <Texture2D>("Terrain/Road-Asphalt-Height"),
// The size of the tileable detail textures in world space units.
TileSize = 5,
// The border blend range controls how the border of the road fades out.
// We fade out 5% of the texture on each side of the road.
BorderBlendRange = new Vector4F(0.05f, 0.05f, 0.05f, 0.05f),
};
// Create 3D spline path with some semi-random control points.
_roadPath = new Path3F
{
PreLoop = isClosed ? CurveLoopType.Cycle : CurveLoopType.Linear,
PostLoop = isClosed ? CurveLoopType.Cycle : CurveLoopType.Linear,
SmoothEnds = isClosed,
};
// The position of the next path key.
Vector3F position = new Vector3F(
RandomHelper.Random.NextFloat(-20, 20),
0,
RandomHelper.Random.NextFloat(-20, 20));
// The direction to the next path key.
Vector3F direction = QuaternionF.CreateRotationY(RandomHelper.Random.NextFloat(0, 10)).Rotate(Vector3F.Forward);
// Add path keys.
for (int j = 0; j < 10; j++)
{
// Instead of a normal PathKey3F, we use a TerrainRoadPathKey which allows to control
// the road with and the side falloff.
var key = new TerrainRoadPathKey
{
Interpolation = SplineInterpolation.CatmullRom,
Parameter = j,
Point = position,
// The width of the road at the path key.
Width = RandomHelper.Random.NextFloat(6, 10),
// The side falloff (which is used in ClampTerrainToRoad to blend the height values with
// the road).
SideFalloff = RandomHelper.Random.NextFloat(20, 40),
};
_roadPath.Add(key);
// Get next random position and direction.
position += direction * RandomHelper.Random.NextFloat(20, 40);
position.Y += RandomHelper.Random.NextFloat(-2, 2);
direction = QuaternionF.CreateRotationY(RandomHelper.Random.NextFloat(-1, 1))
.Rotate(direction);
}
if (isClosed)
{
// To create a closed path the first and the last key should be identical.
_roadPath[_roadPath.Count - 1].Point = _roadPath[0].Point;
((TerrainRoadPathKey)_roadPath[_roadPath.Count - 1]).Width = ((TerrainRoadPathKey)_roadPath[0]).Width;
((TerrainRoadPathKey)_roadPath[_roadPath.Count - 1]).SideFalloff =
((TerrainRoadPathKey)_roadPath[0]).SideFalloff;
// Since the path is closed we do not have to fade out the start and the end of the road.
_roadLayer.BorderBlendRange *= new Vector4F(1, 0, 1, 0);
}
// Convert the path to a mesh.
Submesh roadSubmesh;
Aabb roadAabb;
float roadLength;
TerrainRoadLayer.CreateMesh(
GraphicsService.GraphicsDevice,
_roadPath,
4,
10,
0.1f,
out roadSubmesh,
out roadAabb,
out roadLength);
// Set the mesh in the road layer.
_roadLayer.SetMesh(roadSubmesh, roadAabb, roadLength, true);
if (isClosed)
{
// When the path is closed, the end texture and the start texture coordinates should
// match. This is the case if (roadLength / tileSize) is an integer.
var numberOfTiles = (int)(roadLength / _roadLayer.TileSize);
_roadLayer.TileSize = roadLength / numberOfTiles;
}
// The road layer is added to the layers of a tile. We have to add the road to each terrain
// tile which it overlaps.
foreach (var tile in _terrainObject.TerrainNode.Terrain.Tiles)
{
if (GeometryHelper.HaveContact(tile.Aabb, _roadLayer.Aabb.Value))
{
tile.Layers.Add(_roadLayer);
}
}
}
// OnUpdate() is called once per frame.
protected override void OnUpdate(TimeSpan deltaTime)
{
#if !WINDOWS_PHONE
// Mouse centering (controlled by the MenuComponent) is disabled if the game
// is inactive or if the GUI is active. In these cases, we do not want to move
// the player.
if (!_inputService.EnableMouseCentering)
{
return;
}
#endif
if (!IsEnabled)
{
return;
}
float deltaTimeF = (float)deltaTime.TotalSeconds;
// Compute new orientation from mouse movement and gamepad.
Vector2F mousePositionDelta = _inputService.MousePositionDelta;
#if !WINDOWS_PHONE
GamePadState gamePadState = _inputService.GetGamePadState(LogicalPlayerIndex.One);
float deltaYaw = -mousePositionDelta.X - gamePadState.ThumbSticks.Right.X * ThumbStickFactor;
_currentYaw += deltaYaw * deltaTimeF * AngularVelocityMagnitude;
float deltaPitch = -mousePositionDelta.Y + gamePadState.ThumbSticks.Right.Y * ThumbStickFactor;
_currentPitch += deltaPitch * deltaTimeF * AngularVelocityMagnitude;
// Limit the pitch angle to +/- 90°.
_currentPitch = MathHelper.Clamp(_currentPitch, -ConstantsF.PiOver2, ConstantsF.PiOver2);
// Reset camera position if <Home> or <Right Stick> is pressed.
if (_inputService.IsPressed(Keys.Home, false) ||
_inputService.IsPressed(Buttons.RightStick, false, LogicalPlayerIndex.One))
{
ResetPose();
}
// Compute new orientation of the camera.
QuaternionF orientation = QuaternionF.CreateRotationY(_currentYaw) * QuaternionF.CreateRotationX(_currentPitch);
// Create velocity from <W>, <A>, <S>, <D> and <R>, <F> keys.
// <R> or DPad up is used to move up ("rise").
// <F> or DPad down is used to move down ("fall").
Vector3F velocity = Vector3F.Zero;
KeyboardState keyboardState = _inputService.KeyboardState;
if (keyboardState.IsKeyDown(Keys.W))
{
velocity.Z--;
}
if (keyboardState.IsKeyDown(Keys.S))
{
velocity.Z++;
}
if (keyboardState.IsKeyDown(Keys.A))
{
velocity.X--;
}
if (keyboardState.IsKeyDown(Keys.D))
{
velocity.X++;
}
if (keyboardState.IsKeyDown(Keys.R) || gamePadState.DPad.Up == ButtonState.Pressed)
{
velocity.Y++;
}
if (keyboardState.IsKeyDown(Keys.F) || gamePadState.DPad.Down == ButtonState.Pressed)
{
velocity.Y--;
}
// Add velocity from gamepad sticks.
velocity.X += gamePadState.ThumbSticks.Left.X;
velocity.Z -= gamePadState.ThumbSticks.Left.Y;
// Rotate the velocity vector from view space to world space.
velocity = orientation.Rotate(velocity);
if (keyboardState.IsKeyDown(Keys.LeftShift))
{
velocity *= SpeedBoost;
}
// Multiply the velocity by time to get the translation for this frame.
Vector3F translation = velocity * LinearVelocityMagnitude * deltaTimeF;
// Update SceneNode.LastPoseWorld - this is required for some effects, like
// camera motion blur.
CameraNode.LastPoseWorld = CameraNode.PoseWorld;
// Set the new camera pose.
CameraNode.PoseWorld = new Pose(
CameraNode.PoseWorld.Position + translation,
orientation);
#else
// Only handle mouse movement is mouse button was down the last frame.
if (!_inputService.IsPressed(MouseButtons.Left, false))
{
float deltaYaw = -mousePositionDelta.X;
_currentYaw += deltaYaw * deltaTimeF * AngularVelocityMagnitude;
float deltaPitch = -mousePositionDelta.Y;
_currentPitch += deltaPitch * deltaTimeF * AngularVelocityMagnitude;
// Limit the pitch angle.
_currentPitch = MathHelper.Clamp(_currentPitch, -1, 1);
// Compute new orientation of the camera.
QuaternionF orientation = QuaternionF.CreateRotationY(_currentYaw) * QuaternionF.CreateRotationX(_currentPitch);
var radius = CameraNode.PoseWorld.Position.Length;
// Update SceneNode.LastPoseWorld - this is required for some effects, like
// camera motion blur.
CameraNode.LastPoseWorld = CameraNode.PoseWorld;
// Set the new camera pose.
CameraNode.PoseWorld = new Pose(orientation.Rotate(new Vector3F(0, 0, radius)), orientation);
}
#endif
}
public SplitScreenSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
_graphicsScreen = new SplitScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera of player A.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNodeA = cameraGameObject.CameraNode;
var projection = (PerspectiveProjection)cameraGameObject.CameraNode.Camera.Projection;
projection.SetFieldOfView(
projection.FieldOfViewY,
GraphicsService.GraphicsDevice.Viewport.AspectRatio / 2,
projection.Near,
projection.Far);
cameraGameObject.CameraNode.Camera = new Camera(projection);
// A second camera for player B.
_cameraNodeB = new CameraNode(cameraGameObject.CameraNode.Camera);
_graphicsScreen.ActiveCameraNodeB = _cameraNodeB;
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new GroundObject(Services));
GameObjectService.Objects.Add(new DudeObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
GameObjectService.Objects.Add(new LavaBallsObject(Services));
GameObjectService.Objects.Add(new FogObject(Services));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Barrier", 0.9f, new Pose(new Vector3F(0, 0, -2))));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Cylinder", 0.9f, new Pose(new Vector3F(3, 0, 0), QuaternionF.CreateRotationY(MathHelper.ToRadians(-20)))));
GameObjectService.Objects.Add(new StaticSkyObject(Services));
// Add a few palm trees.
Random random = new Random(12345);
for (int i = 0; i < 10; i++)
{
Vector3F position = new Vector3F(random.NextFloat(-3, -8), 0, random.NextFloat(0, -5));
Matrix33F orientation = Matrix33F.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
GameObjectService.Objects.Add(new OptionsObject(Services));
}
public SkySample(Microsoft.Xna.Framework.Game game)
: base(game)
{
_graphicsScreen = new DeferredGraphicsScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new GroundObject(Services));
GameObjectService.Objects.Add(new DudeObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
GameObjectService.Objects.Add(new LavaBallsObject(Services));
GameObjectService.Objects.Add(new FogObject(Services));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Barrier", 0.9f, new Pose(new Vector3F(0, 0, -2))));
GameObjectService.Objects.Add(new StaticObject(Services, "Barrier/Cylinder", 0.9f, new Pose(new Vector3F(3, 0, 0), QuaternionF.CreateRotationY(MathHelper.ToRadians(-20)))));
// The DynamicSkyObject creates the dynamic sky and lights.
GameObjectService.Objects.Add(new DynamicSkyObject(Services));
// Add a few palm trees.
Random random = new Random(12345);
for (int i = 0; i < 10; i++)
{
Vector3F position = new Vector3F(random.NextFloat(-3, -8), 0, random.NextFloat(0, -5));
Matrix33F orientation = Matrix33F.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
GameObjectService.Objects.Add(new OptionsObject(Services));
// Add a grain filter to add some noise in the night.
_graphicsScreen.PostProcessors.Add(new GrainFilter(GraphicsService)
{
IsAnimated = true,
LuminanceThreshold = 0.3f,
ScaleWithLuminance = true,
Strength = 0.04f,
GrainScale = 1.5f,
});
}