protected override void Update(GameTime gameTime)
{
KeyboardState keyState = Keyboard.GetState();
MouseState mouseState = Mouse.GetState();
if (keyState.IsKeyDown(Keys.Escape))
this.Exit();
#region Picking Objects with the mouse
if (mouseState.MiddleButton == ButtonState.Pressed)
{
if (middleButton == false)
{
Vector3 ray = RayTo(mouseState.X, mouseState.Y);
float frac; CollisionSkin skin;
Vector3 pos, normal;
ImmovableSkinPredicate pred = new ImmovableSkinPredicate();
physicSystem.CollisionSystem.SegmentIntersect(out frac, out skin, out pos, out normal,
new Segment(camera.Position, ray * 1000.0f), pred);
if (skin != null && (skin.Owner != null))
{
if (!skin.Owner.Immovable)
{
Vector3 delta = pos - skin.Owner.Position;
delta = Vector3.Transform(delta, Matrix.Transpose(skin.Owner.Orientation));
camPickDistance = (camera.Position - pos).Length();
oldWheel = mouseState.ScrollWheelValue;
skin.Owner.SetActive();
objectController.Destroy();
damperController.Destroy();
objectController.Initialise(skin.Owner, delta, pos);
damperController.Initialise(skin.Owner, ConstraintVelocity.ReferenceFrame.Body, Vector3.Zero, Vector3.Zero);
objectController.EnableConstraint();
damperController.EnableConstraint();
}
}
middleButton = true;
}
if (objectController.IsConstraintEnabled && (objectController.Body != null))
{
Vector3 delta = objectController.Body.Position - camera.Position;
Vector3 ray = RayTo(mouseState.X, mouseState.Y); ray.Normalize();
float deltaWheel = mouseState.ScrollWheelValue - oldWheel;
camPickDistance += deltaWheel * 0.01f;
Vector3 result = camera.Position + camPickDistance * ray;
oldWheel = mouseState.ScrollWheelValue;
objectController.WorldPosition = result;
objectController.Body.SetActive();
}
}
else
{
objectController.DisableConstraint();
damperController.DisableConstraint();
middleButton = false;
}
#endregion
if (mouseState.LeftButton == ButtonState.Pressed && leftButton == false)
{
PhysicObject physObj = SpawnPrimitive(camera.Position, Matrix.CreateRotationX(0.5f));
physObj.PhysicsBody.Velocity = (camera.Target - camera.Position) * 20.0f;
Components.Add(physObj);
leftButton = true;
}
if (mouseState.LeftButton == ButtonState.Released) leftButton = false;
Keys[] pressedKeys = keyState.GetPressedKeys();
if (pressedKeys.Length != 0)
{
switch (pressedKeys[0])
{
case Keys.D1: ResetScene(); CreateScene1(9); break;
case Keys.D2: ResetScene(); CreateScene2(); break;
case Keys.D3: ResetScene(); CreateScene3(); break;
case Keys.D4: ResetScene(); CreateScene4(12); break;
case Keys.D5: ResetScene(); CreateScene5(10); break;
case Keys.D6: ResetScene(); CreateScene6(); break;
case Keys.D7: ResetScene(); CreateScene7(); break;
case Keys.D8: ResetScene(); CreateScene8(); break;
case Keys.D9: ResetScene(); CreateScene9(); break;
case Keys.D0: ResetScene(); CreateScene0(); break;
}
}
debugDrawer.Enabled = keyState.IsKeyDown(Keys.C);
if (keyState.IsKeyDown(Keys.Up) || keyState.IsKeyDown(Keys.Down))
{
if (keyState.IsKeyDown(Keys.Up))
carObject.Car.Accelerate = 1.0f;
else
carObject.Car.Accelerate = -1.0f;
}
else
carObject.Car.Accelerate = 0.0f;
if (keyState.IsKeyDown(Keys.Left) || keyState.IsKeyDown(Keys.Right))
{
if (keyState.IsKeyDown(Keys.Left))
carObject.Car.Steer = 1.0f;
else
carObject.Car.Steer = -1.0f;
}
else
carObject.Car.Steer = 0.0f;
if (keyState.IsKeyDown(Keys.B))
carObject.Car.HBrake = 1.0f;
else
carObject.Car.HBrake = 0.0f;
if (singleStep == true && keyState.IsKeyDown(Keys.Space) == false)
{
// don't intergrate so we can step at will
}
else
{
float timeStep = (float)gameTime.ElapsedGameTime.Ticks / TimeSpan.TicksPerSecond;
if (timeStep < 1.0f / 60.0f) physicSystem.Integrate(timeStep);
else physicSystem.Integrate(1.0f / 60.0f);
}
base.Update(gameTime);
}
protected override void Update(GameTime gameTime)
{
KeyboardState keyState = Keyboard.GetState();
MouseState mouseState = Mouse.GetState();
if (keyState.IsKeyDown(Keys.Escape))
{
this.Exit();
}
#region Picking Objects with the mouse
if (mouseState.MiddleButton == ButtonState.Pressed)
{
if (middleButton == false)
{
Vector3 ray = RayTo(mouseState.X, mouseState.Y);
float frac; CollisionSkin skin;
Vector3 pos, normal;
ImmovableSkinPredicate pred = new ImmovableSkinPredicate();
physicSystem.CollisionSystem.SegmentIntersect(out frac, out skin, out pos, out normal,
new Segment(camera.Position, ray * 1000.0f), pred);
if (skin != null && (skin.Owner != null))
{
if (!skin.Owner.Immovable)
{
Vector3 delta = pos - skin.Owner.Position;
delta = Vector3.Transform(delta, Matrix.Transpose(skin.Owner.Orientation));
camPickDistance = (camera.Position - pos).Length();
oldWheel = mouseState.ScrollWheelValue;
skin.Owner.SetActive();
objectController.Destroy();
damperController.Destroy();
objectController.Initialise(skin.Owner, delta, pos);
damperController.Initialise(skin.Owner, ConstraintVelocity.ReferenceFrame.Body, Vector3.Zero, Vector3.Zero);
objectController.EnableConstraint();
damperController.EnableConstraint();
}
}
middleButton = true;
}
if (objectController.IsConstraintEnabled && (objectController.Body != null))
{
Vector3 delta = objectController.Body.Position - camera.Position;
Vector3 ray = RayTo(mouseState.X, mouseState.Y); ray.Normalize();
float deltaWheel = mouseState.ScrollWheelValue - oldWheel;
camPickDistance += deltaWheel * 0.01f;
Vector3 result = camera.Position + camPickDistance * ray;
oldWheel = mouseState.ScrollWheelValue;
objectController.WorldPosition = result;
objectController.Body.SetActive();
}
}
else
{
objectController.DisableConstraint();
damperController.DisableConstraint();
middleButton = false;
}
#endregion
if (mouseState.LeftButton == ButtonState.Pressed && leftButton == false)
{
PhysicObject physObj = SpawnPrimitive(camera.Position, Matrix.CreateRotationX(0.5f));
physObj.PhysicsBody.Velocity = (camera.Target - camera.Position) * 20.0f;
Components.Add(physObj);
leftButton = true;
}
if (mouseState.LeftButton == ButtonState.Released)
{
leftButton = false;
}
Keys[] pressedKeys = keyState.GetPressedKeys();
if (pressedKeys.Length != 0)
{
switch (pressedKeys[0])
{
case Keys.D1: ResetScene(); CreateScene1(9); break;
case Keys.D2: ResetScene(); CreateScene2(); break;
case Keys.D3: ResetScene(); CreateScene3(); break;
case Keys.D4: ResetScene(); CreateScene4(12); break;
case Keys.D5: ResetScene(); CreateScene5(20); break;
case Keys.D6: ResetScene(); CreateScene6(); break;
case Keys.D7: ResetScene(); CreateScene7(); break;
case Keys.D8: ResetScene(); CreateScene8(); break;
case Keys.D9: ResetScene(); CreateScene9(); break;
case Keys.D0: ResetScene(); CreateScene0(); break;
}
}
debugDrawer.Enabled = keyState.IsKeyDown(Keys.C);
if (keyState.IsKeyDown(Keys.Up) || keyState.IsKeyDown(Keys.Down))
{
if (keyState.IsKeyDown(Keys.Up))
{
carObject.Car.Accelerate = 1.0f;
}
else
{
carObject.Car.Accelerate = -1.0f;
}
}
else
{
carObject.Car.Accelerate = 0.0f;
}
if (keyState.IsKeyDown(Keys.Left) || keyState.IsKeyDown(Keys.Right))
{
if (keyState.IsKeyDown(Keys.Left))
{
carObject.Car.Steer = 1.0f;
}
else
{
carObject.Car.Steer = -1.0f;
}
}
else
{
carObject.Car.Steer = 0.0f;
}
if (keyState.IsKeyDown(Keys.B))
{
carObject.Car.HBrake = 1.0f;
}
else
{
carObject.Car.HBrake = 0.0f;
}
if (singleStep == true && keyState.IsKeyDown(Keys.Space) == false)
{
// don't intergrate so we can step at will
}
else
{
float timeStep = (float)gameTime.ElapsedGameTime.Ticks / TimeSpan.TicksPerSecond;
if (timeStep < 1.0f / 60.0f)
{
physicSystem.Integrate(timeStep);
}
else
{
physicSystem.Integrate(1.0f / 60.0f);
}
}
base.Update(gameTime);
}