/// <summary>
/// Movement while considering actionblockers, weightlessness, etc.
/// </summary>
/// <param name="mover"></param>
/// <param name="physicsComponent"></param>
/// <param name="mobMover"></param>
protected void HandleMobMovement(IMoverComponent mover, PhysicsComponent physicsComponent,
IMobMoverComponent mobMover)
{
// TODO: Look at https://gameworksdocs.nvidia.com/PhysX/4.1/documentation/physxguide/Manual/CharacterControllers.html?highlight=controller as it has some adviceo n kinematic controllersx
if (!UseMobMovement(_broadPhaseSystem, physicsComponent, _mapManager))
{
return;
}
var transform = mover.Owner.Transform;
var(walkDir, sprintDir) = mover.VelocityDir;
var weightless = transform.Owner.IsWeightless(physicsComponent, mapManager: _mapManager);
// Handle wall-pushes.
if (weightless)
{
// No gravity: is our entity touching anything?
var touching = IsAroundCollider(_broadPhaseSystem, transform, mobMover, physicsComponent);
if (!touching)
{
transform.WorldRotation = physicsComponent.LinearVelocity.GetDir().ToAngle();
return;
}
}
// Regular movement.
// Target velocity.
// This is relative to the map / grid we're on.
var total = (walkDir * mover.CurrentWalkSpeed + sprintDir * mover.CurrentSprintSpeed);
var worldTotal = _relativeMovement ?
new Angle(transform.Parent !.WorldRotation.Theta).RotateVec(total) :
total;
DebugTools.Assert(MathHelper.CloseTo(total.Length, worldTotal.Length));
if (weightless)
{
worldTotal *= mobMover.WeightlessStrength;
}
if (worldTotal != Vector2.Zero)
{
// This should have its event run during island solver soooo
transform.DeferUpdates = true;
transform.WorldRotation = worldTotal.GetDir().ToAngle();
transform.DeferUpdates = false;
HandleFootsteps(mover, mobMover);
}
physicsComponent.LinearVelocity = worldTotal;
}
// TODO: Need a predicted client version that only plays for our own entity and then have server-side ignore our session (for that entity only)
protected virtual void HandleFootsteps(IMoverComponent mover, IMobMoverComponent mobMover)
{
}
/// <summary>
/// Used for weightlessness to determine if we are near a wall.
/// </summary>
/// <param name="broadPhaseSystem"></param>
/// <param name="transform"></param>
/// <param name="mover"></param>
/// <param name="collider"></param>
/// <returns></returns>
public static bool IsAroundCollider(SharedBroadphaseSystem broadPhaseSystem, ITransformComponent transform, IMobMoverComponent mover, IPhysBody collider)
{
var enlargedAABB = collider.GetWorldAABB().Enlarged(mover.GrabRange);
foreach (var otherCollider in broadPhaseSystem.GetCollidingEntities(transform.MapID, enlargedAABB))
{
if (otherCollider == collider)
{
continue; // Don't try to push off of yourself!
}
// Only allow pushing off of anchored things that have collision.
if (otherCollider.BodyType != BodyType.Static ||
!otherCollider.CanCollide ||
((collider.CollisionMask & otherCollider.CollisionLayer) == 0 &&
(otherCollider.CollisionMask & collider.CollisionLayer) == 0) ||
(otherCollider.Owner.TryGetComponent(out SharedPullableComponent? pullable) && pullable.BeingPulled))
{
continue;
}
return(true);
}
return(false);
}
protected void HandleMobMovement(IMoverComponent mover, PhysicsComponent physicsComponent, IMobMoverComponent mobMover)
{
// TODO: Look at https://gameworksdocs.nvidia.com/PhysX/4.1/documentation/physxguide/Manual/CharacterControllers.html?highlight=controller as it has some adviceo n kinematic controllersx
if (!UseMobMovement(_broadPhaseSystem, physicsComponent, _physicsManager))
{
return;
}
var transform = mover.Owner.Transform;
var(walkDir, sprintDir) = mover.VelocityDir;
var weightless = transform.Owner.IsWeightless(_physicsManager);
// Handle wall-pushes.
if (weightless)
{
// No gravity: is our entity touching anything?
var touching = IsAroundCollider(_broadPhaseSystem, transform, mobMover, physicsComponent);
if (!touching)
{
transform.LocalRotation = physicsComponent.LinearVelocity.GetDir().ToAngle();
return;
}
}
// Regular movement.
// Target velocity.
var total = (walkDir * mover.CurrentWalkSpeed + sprintDir * mover.CurrentSprintSpeed);
if (weightless)
{
total *= mobMover.WeightlessStrength;
}
if (total != Vector2.Zero)
{
// This should have its event run during island solver soooo
transform.DeferUpdates = true;
transform.LocalRotation = total.GetDir().ToAngle();
transform.DeferUpdates = false;
HandleFootsteps(mover, mobMover);
}
physicsComponent.LinearVelocity = total;
}
