/// <summary>
/// Constructs a new demo.
/// </summary>
/// <param name="game">Game owning this demo.</param>
public PlanetDemo(DemosGame game)
: base(game)
{
Space.ForceUpdater.Gravity = Vector3.Zero;
//By pre-allocating a bunch of box-box pair handlers, the simulation will avoid having to allocate new ones at runtime.
NarrowPhaseHelper.Factories.BoxBox.EnsureCount(1000);
var planet = new Sphere(new Vector3(0, 0, 0), 30);
Space.Add(planet);
var field = new GravitationalField(new InfiniteForceFieldShape(), planet.Position, 66730 / 2f, 100);
Space.Add(field);
//Drop the "meteorites" on the planet.
Entity toAdd;
int numColumns = 10;
int numRows = 10;
int numHigh = 10;
float separation = 5;
for (int i = 0; i < numRows; i++)
for (int j = 0; j < numColumns; j++)
for (int k = 0; k < numHigh; k++)
{
toAdd = new Box(new Vector3(separation * i - numRows * separation / 2, 40 + k * separation, separation * j - numColumns * separation / 2), 1f, 1f, 1f, 5);
toAdd.LinearVelocity = new Vector3(30, 0, 0);
toAdd.LinearDamping = 0;
toAdd.AngularDamping = 0;
Space.Add(toAdd);
}
game.Camera.Position = new Vector3(0, 0, 150);
}
int BuildPlanetSimulation(Space space)
{
space.ForceUpdater.Gravity = Vector3.Zero;
var planet = new Sphere(new Vector3(0, 0, 0), 30);
space.Add(planet);
var field = new GravitationalField(new InfiniteForceFieldShape(), planet.Position, 66730 / 2f, 100);
space.Add(field);
//Drop the "meteorites" on the planet.
Entity toAdd;
#if WINDOWS
//By pre-allocating a bunch of box-box pair handlers, the simulation will avoid having to allocate new ones at runtime.
NarrowPhaseHelper.Factories.BoxBox.EnsureCount(30000);
int numColumns = 25;
int numRows = 25;
int numHigh = 25;
#else
NarrowPhaseHelper.Factories.BoxBox.EnsureCount(2000);
int numColumns = 10;
int numRows = 10;
int numHigh = 10;
#endif
float separation = 5;
for (int i = 0; i < numRows; i++)
for (int j = 0; j < numColumns; j++)
for (int k = 0; k < numHigh; k++)
{
toAdd = new Box(new Vector3(separation * i - numRows * separation / 2, 40 + k * separation, separation * j - numColumns * separation / 2), 1f, 1f, 1f, 5);
toAdd.LinearVelocity = new Vector3(30, 0, 0);
toAdd.LinearDamping = 0;
toAdd.AngularDamping = 0;
space.Add(toAdd);
}
#if WINDOWS
return 3000;
#else
return 1000;
#endif
}
