protected override void LoadContent()
{
dataFont = Content.Load <SpriteFont>("DataFont");
tinyFont = Content.Load <SpriteFont>("TinyFont");
controlsMenu = Content.Load <Texture2D>("bepuphysicscontrols");
IsFixedTimeStep = false;
LineDrawer = new BasicEffect(GraphicsDevice);
UIDrawer = new SpriteBatch(GraphicsDevice);
DataTextDrawer = new TextDrawer(UIDrawer, dataFont, Color.White);
TinyTextDrawer = new TextDrawer(UIDrawer, tinyFont, Color.White);
Mouse.SetPosition(200, 200);
ModelDrawer.Clear();
ConstraintDrawer.Clear();
if (ServerSimulation != null)
{
ServerSimulation.CleanUp();
}
Type SimulationType = typeof(WorldSimulator);
Globals.world = (WorldSimulator)Activator.CreateInstance(SimulationType, new object[] { this });
ServerSimulation = Globals.world;
foreach (Entity e in Globals.space.Entities)
{
if ((string)e.Tag != "noDisplayObject")
{
ModelDrawer.Add(e);
}
else
{
e.Tag = null;
}
}
for (int i = 0; i < Globals.space.Solver.SolverUpdateables.Count; i++)
{
//Add the solver updateable and match up the activity setting.
LineDisplayObjectBase objectAdded = ConstraintDrawer.Add(Globals.space.Solver.SolverUpdateables[i]);
if (objectAdded != null)
{
objectAdded.IsDrawing = Globals.space.Solver.SolverUpdateables[i].IsActive;
}
}
GC.Collect();
}
/// <summary>
/// Manages the switch to a new physics engine simulation.
/// </summary>
/// <param name="sim">Index of the simulation to switch to.</param>
public void SwitchSimulation(int sim)
{
currentSimulationIndex = sim;
//Clear out any old rendering stuff.
ModelDrawer.Clear();
ConstraintDrawer.Clear();
//Tell the previous simulation it's done.
if (currentSimulation != null)
{
currentSimulation.CleanUp();
}
//Create the new demo.
Type demoType = demoTypes[currentSimulationIndex - 1];
#if !WINDOWS
currentSimulation = (Demo)demoType.GetConstructor(new[] { typeof(DemosGame) }).Invoke(new object[] { this });
#else
currentSimulation = (Demo)Activator.CreateInstance(demoType, new object[] { this });
#endif
#region DisplayObject creation
foreach (Entity e in currentSimulation.Space.Entities)
{
if ((string)e.Tag != "noDisplayObject")
{
ModelDrawer.Add(e);
}
else //Remove the now unnecessary tag.
{
e.Tag = null;
}
}
for (int i = 0; i < currentSimulation.Space.Solver.SolverUpdateables.Count; i++)
{
//Add the solver updateable and match up the activity setting.
LineDisplayObjectBase objectAdded = ConstraintDrawer.Add(currentSimulation.Space.Solver.SolverUpdateables[i]);
if (objectAdded != null)
{
objectAdded.IsDrawing = currentSimulation.Space.Solver.SolverUpdateables[i].IsActive;
}
}
#endregion
GC.Collect();
}
/// <summary>
/// Constructs the front end and the internal physics representation of the Vehicle.
/// </summary>
/// <param name="position">Position of the Vehicle.</param>
/// <param name="space">Space to add the Vehicle to.</param>
/// <param name="camera">Camera to attach to the Vehicle.</param>
/// <param name="game">The running game.</param>
/// <param name="drawer">Drawer used to draw the Vehicle.</param>
/// <param name="wheelModel">Model of the wheels.</param>
/// <param name="wheelTexture">Texture to use for the wheels.</param>
public VehicleInput(Vector3 position, Space space, Camera camera, DemosGame game, ModelDrawer drawer, Microsoft.Xna.Framework.Graphics.Model wheelModel, Microsoft.Xna.Framework.Graphics.Texture2D wheelTexture)
{
var bodies = new List <CompoundShapeEntry>
{
new CompoundShapeEntry(new BoxShape(2.5f, .75f, 4.5f), new Vector3(0, 0, 0), 60),
new CompoundShapeEntry(new BoxShape(2.5f, .3f, 2f), new Vector3(0, .75f / 2 + .3f / 2, .5f), 1)
};
var body = new CompoundBody(bodies, 61);
body.CollisionInformation.LocalPosition = new Vector3(0, .5f, 0);
body.Position = position; //At first, just keep it out of the way.
Vehicle = new Vehicle(body);
var localWheelRotation = Quaternion.CreateFromAxisAngle(new Vector3(0, 0, 1), MathHelper.PiOver2);
//The wheel model used is not aligned initially with how a wheel would normally look, so rotate them.
Matrix wheelGraphicRotation = Matrix.CreateFromAxisAngle(Vector3.Forward, MathHelper.PiOver2);
Vehicle.AddWheel(new Wheel(
new CylinderCastWheelShape(.375f, 0.2f, localWheelRotation, wheelGraphicRotation, false),
new WheelSuspension(2000, 100f, Vector3.Down, 0.325f, new Vector3(-1.1f, -0.1f, 1.8f)),
new WheelDrivingMotor(2.5f, 30000, 10000),
new WheelBrake(1.5f, 2, .02f),
new WheelSlidingFriction(4, 5)));
Vehicle.AddWheel(new Wheel(
new CylinderCastWheelShape(.375f, 0.2f, localWheelRotation, wheelGraphicRotation, false),
new WheelSuspension(2000, 100f, Vector3.Down, 0.325f, new Vector3(-1.1f, -0.1f, -1.8f)),
new WheelDrivingMotor(2.5f, 30000, 10000),
new WheelBrake(1.5f, 2, .02f),
new WheelSlidingFriction(4, 5)));
Vehicle.AddWheel(new Wheel(
new CylinderCastWheelShape(.375f, 0.2f, localWheelRotation, wheelGraphicRotation, false),
new WheelSuspension(2000, 100f, Vector3.Down, 0.325f, new Vector3(1.1f, -0.1f, 1.8f)),
new WheelDrivingMotor(2.5f, 30000, 10000),
new WheelBrake(1.5f, 2, .02f),
new WheelSlidingFriction(4, 5)));
Vehicle.AddWheel(new Wheel(
new CylinderCastWheelShape(.375f, 0.2f, localWheelRotation, wheelGraphicRotation, false),
new WheelSuspension(2000, 100f, Vector3.Down, 0.325f, new Vector3(1.1f, -0.1f, -1.8f)),
new WheelDrivingMotor(2.5f, 30000, 10000),
new WheelBrake(1.5f, 2, .02f),
new WheelSlidingFriction(4, 5)));
foreach (Wheel wheel in Vehicle.Wheels)
{
//This is a cosmetic setting that makes it looks like the car doesn't have antilock brakes.
wheel.Shape.FreezeWheelsWhileBraking = true;
//By default, wheels use as many iterations as the space. By lowering it,
//performance can be improved at the cost of a little accuracy.
//However, because the suspension and friction are not really rigid,
//the lowered accuracy is not so much of a problem.
wheel.Suspension.SolverSettings.MaximumIterationCount = 1;
wheel.Brake.SolverSettings.MaximumIterationCount = 1;
wheel.SlidingFriction.SolverSettings.MaximumIterationCount = 1;
wheel.DrivingMotor.SolverSettings.MaximumIterationCount = 1;
}
Space = space;
Space.Add(Vehicle);
ModelDrawer = drawer;
DisplayModel model;
WheelModels = new List <DisplayModel>();
for (int k = 0; k < 4; k++)
{
Vehicle.Wheels[k].Shape.Detector.Tag = "noDisplayObject";
model = new DisplayModel(wheelModel, ModelDrawer);
ModelDrawer.Add(model);
WheelModels.Add(model);
model.Texture = wheelTexture;
}
CameraControlScheme = new ChaseCameraControlScheme(Vehicle.Body, new Vector3(0, 0.6f, 0), true, 10, camera, game);
}
/// <summary>
/// Constructs the front end and the internal physics representation of the vehicle.
/// </summary>
/// <param name="position">Position of the tank.</param>
/// <param name="owningSpace">Space to add the vehicle to.</param>
/// <param name="camera">Camera to attach to the vehicle.</param>
/// <param name="game">Running game.</param>
/// <param name="drawer">Drawer used to draw the tank.</param>
/// <param name="wheelModel">Model to use for the 'wheels' of the tank.</param>
/// <param name="wheelTexture">Texture of the wheels on the tank.</param>
public TankInput(Vector3 position, Space owningSpace, Camera camera, DemosGame game, ModelDrawer drawer, Model wheelModel, Texture2D wheelTexture)
{
var bodies = new List <CompoundShapeEntry>()
{
new CompoundShapeEntry(new BoxShape(4f, 1, 8), new Vector3(0, 0, 0), 500),
new CompoundShapeEntry(new BoxShape(3, .7f, 4f), new Vector3(0, .5f + .35f, .5f), 1)
};
var body = new CompoundBody(bodies, 501);
body.CollisionInformation.LocalPosition = new Vector3(0, .5f, 0);
body.Position = (position); //At first, just keep it out of the way.
Vehicle = new Vehicle(body);
#region RaycastWheelShapes
//The wheel model used is not aligned initially with how a wheel would normally look, so rotate them.
MaximumDriveForce = 1800;
BaseSlidingFriction = 3;
Matrix wheelGraphicRotation = Matrix.CreateFromAxisAngle(Vector3.Forward, MathHelper.PiOver2);
for (int i = 0; i < 6; i++)
{
var toAdd = new Wheel(
new RaycastWheelShape(.375f, wheelGraphicRotation),
new WheelSuspension(2000, 300f, Vector3.Down, 1.3f, new Vector3(-1.9f, 0, -2.9f + i * 1.15f)),
new WheelDrivingMotor(10, MaximumDriveForce, MaximumDriveForce),
new WheelBrake(7, 7, 1.0f),
new WheelSlidingFriction(BaseSlidingFriction, BaseSlidingFriction));
toAdd.DrivingMotor.GripFrictionBlender = FrictionBlender;
toAdd.Brake.FrictionBlender = FrictionBlender;
toAdd.SlidingFriction.FrictionBlender = FrictionBlender;
Vehicle.AddWheel(toAdd);
leftTrack.Add(toAdd);
}
for (int i = 0; i < 6; i++)
{
var toAdd = new Wheel(
new RaycastWheelShape(.375f, wheelGraphicRotation),
new WheelSuspension(2000, 300f, Vector3.Down, 1.3f, new Vector3(1.9f, 0, -2.9f + i * 1.15f)),
new WheelDrivingMotor(10, 2000, 1000),
new WheelBrake(7, 7, 1.0f),
new WheelSlidingFriction(BaseSlidingFriction, BaseSlidingFriction));
toAdd.DrivingMotor.GripFrictionBlender = FrictionBlender;
toAdd.Brake.FrictionBlender = FrictionBlender;
toAdd.SlidingFriction.FrictionBlender = FrictionBlender;
Vehicle.AddWheel(toAdd);
rightTrack.Add(toAdd);
}
#endregion
foreach (Wheel wheel in Vehicle.Wheels)
{
//This is a cosmetic setting that makes it looks like the car doesn't have antilock brakes.
wheel.Shape.FreezeWheelsWhileBraking = true;
//By default, wheels use as many iterations as the space. By lowering it,
//performance can be improved at the cost of a little accuracy.
wheel.Suspension.SolverSettings.MaximumIterationCount = 1;
wheel.Brake.SolverSettings.MaximumIterationCount = 1;
wheel.SlidingFriction.SolverSettings.MaximumIterationCount = 1;
wheel.DrivingMotor.SolverSettings.MaximumIterationCount = 1;
}
Space = owningSpace;
Space.Add(Vehicle);
ModelDrawer = drawer;
DisplayModel model;
WheelModels = new List <DisplayModel>();
for (int k = 0; k < Vehicle.Wheels.Count; k++)
{
Vehicle.Wheels[k].Shape.Detector.Tag = "noDisplayObject";
model = new DisplayModel(wheelModel, ModelDrawer);
ModelDrawer.Add(model);
WheelModels.Add(model);
model.Texture = wheelTexture;
}
CameraControlScheme = new ChaseCameraControlScheme(Vehicle.Body, new Vector3(0, 0.6f, 0), true, 10, camera, game);
}
