public void CapsuleSphereCollision()
{
// r=1.5 at (0,8,0)
var sphere = SphereBody.Create(_simulation,
new Vector3(0, 8, 0),
1.5f);
// pointing straight up, should hit sphere
var capsule1 = CapsuleBody.Create(this._simulation,
new Vector3(0, 0, 0),
Quaternion.Identity,
1f,
6f);
// rotated 45deg, should miss sphere
var capsule2 = CapsuleBody.Create(this._simulation,
new Vector3(0, 0, 0),
Quaternion.CreateFromAxisAngle(Vector3.UnitX, (float)(0.125 * Math.Tau)),
1f,
6f);
// floating, rotated 90deg, should hit sphere
var capsule3 = CapsuleBody.Create(this._simulation,
new Vector3(8, 8, 0),
Quaternion.CreateFromAxisAngle(Vector3.UnitZ, (float)(0.25 * Math.Tau)),
1f,
6f);
Assert.IsTrue(PhysicsSimulation.CapsuleSphereCollision(capsule1, sphere));
Assert.IsFalse(PhysicsSimulation.CapsuleSphereCollision(capsule2, sphere));
Assert.IsTrue(PhysicsSimulation.CapsuleSphereCollision(capsule3, sphere));
}
/// <summary>
/// Adds a sphere physics body to the object.
/// </summary>
/// <param name="radius"></param>
/// <param name="name"></param>
public void SetProximityRadius(float radius, string name)
{
// Add an object and a sphere physics body.
// One game object/script may require multiple physics bodies.
var proximityObject = GameObject.Instantiate(GameObject.Zone);
var physics = proximityObject.AddComponent <PhysicsComponent>();
var physicsObject = SphereBody.Create(
this.GameObject.Zone.Simulation,
this.GameObject.Transform.Position,
radius);
physics.SetPhysics(physicsObject);
// Listen for players entering and leaving.
var playersInPhysicsObject = new List <Player>();
Listen(physics.OnEnter, (component) =>
{
if (!(component.GameObject is Player player))
{
return;
}
if (playersInPhysicsObject.Contains(player))
{
return;
}
playersInPhysicsObject.Add(player);
this.OnProximityUpdate(name, PhysicsCollisionStatus.Enter, player);
});
public void BoxSphereCollision()
{
// r=10 at (100,0,0)
var sphereFar = SphereBody.Create(_simulation,
new Vector3(100, 0, 0),
10f);
// r=4 at (7,0,0)
var sphereClose = SphereBody.Create(_simulation,
new Vector3(7, 0, 0),
4f);
// r=0.5 at (5,5,0)
var sphere2 = SphereBody.Create(_simulation,
new Vector3(5, 5, 0),
0.5f);
// r=0.5 at (6,0,0)
var sphere3 = SphereBody.Create(_simulation,
new Vector3(6, 0, 0),
0.5f);
// 10x10x10 at (0,0,0)
var boxAtZero = BoxBody.Create(_simulation,
new Vector3(0, 0, 0),
Quaternion.Identity,
Vector3.One * 10);
// No rotation
Assert.IsTrue(PhysicsSimulation.BoxSphereCollision(boxAtZero, sphereClose));
Assert.IsFalse(PhysicsSimulation.BoxSphereCollision(boxAtZero, sphereFar));
Assert.IsTrue(PhysicsSimulation.BoxSphereCollision(boxAtZero, sphere2));
Assert.IsFalse(PhysicsSimulation.BoxSphereCollision(boxAtZero, sphere3));
// Rotate box by 45deg around Z axis. Should now miss small sphere at (5,5,0) and hit small sphere at (6,0,0)
var boxAtZeroRotated = BoxBody.Create(_simulation,
new Vector3(0, 0, 0),
Quaternion.CreateFromAxisAngle(Vector3.UnitZ, (float)Math.Tau / 8),
Vector3.One * 10);
Assert.IsFalse(PhysicsSimulation.BoxSphereCollision(boxAtZeroRotated, sphere2));
Assert.IsTrue(PhysicsSimulation.BoxSphereCollision(boxAtZeroRotated, sphere3));
}
public void SphereSphereCollision()
{
// r=10 at (0,0,0)
var sphereAtZero = SphereBody.Create(_simulation, new Vector3(0, 0, 0),
10f);
// r=10 at (100,0,0)
var sphereFar = SphereBody.Create(_simulation,
new Vector3(100, 0, 0),
10f);
// r=4 at (11,0,0)
var sphereClose = SphereBody.Create(_simulation,
new Vector3(11, 0, 0),
4f);
Assert.IsFalse(PhysicsSimulation.SphereSphereCollision(sphereAtZero, sphereFar));
Assert.IsTrue(PhysicsSimulation.SphereSphereCollision(sphereAtZero, sphereClose));
}