private void StopThrow(EntityUid uid, ThrownItemComponent thrownItemComponent)
{
if (EntityManager.TryGetComponent(uid, out PhysicsComponent? physicsComponent))
{
var fixture = _fixtures.GetFixtureOrNull(physicsComponent, ThrowingFixture);
if (fixture != null)
{
_fixtures.DestroyFixture(physicsComponent, fixture);
}
}
EntityManager.EventBus.RaiseLocalEvent(uid, new StopThrowEvent {
User = thrownItemComponent.Thrower
}, true);
EntityManager.RemoveComponent <ThrownItemComponent>(uid);
}
private void DisableDocking(EntityUid uid, DockingComponent component)
{
if (!component.Enabled)
{
return;
}
component.Enabled = false;
if (component.DockedWith != null)
{
Undock(component);
}
if (!TryComp(uid, out PhysicsComponent? physicsComponent))
{
return;
}
_fixtureSystem.DestroyFixture(physicsComponent, DockingFixture);
}
/// <summary>
/// Called where you want the user to stop blocking.
/// </summary>
/// <param name="item"> The entity with the blocking component</param>
/// <param name="component"> The <see cref="BlockingComponent"/></param>
/// <param name="user"> The entity who's using the item to block</param>
/// <returns></returns>
public bool StopBlocking(EntityUid item, BlockingComponent component, EntityUid user)
{
if (!component.IsBlocking)
{
return(false);
}
var xform = Transform(user);
var shieldName = Name(item);
var blockerName = Identity.Entity(user, EntityManager);
var msgUser = Loc.GetString("action-popup-blocking-disabling-user", ("shield", shieldName));
var msgOther = Loc.GetString("action-popup-blocking-disabling-other", ("blockerName", blockerName), ("shield", shieldName));
//If the component blocking toggle isn't null, grab the users SharedBlockingUserComponent and PhysicsComponent
//then toggle the action to false, unanchor the user, remove the hard fixture
//and set the users bodytype back to their original type
if (component.BlockingToggleAction != null && TryComp <BlockingUserComponent>(user, out var blockingUserComponent) &&
TryComp <PhysicsComponent>(user, out var physicsComponent))
{
if (xform.Anchored)
{
_transformSystem.Unanchor(xform);
}
_actionsSystem.SetToggled(component.BlockingToggleAction, false);
_fixtureSystem.DestroyFixture(physicsComponent, BlockingComponent.BlockFixtureID);
physicsComponent.BodyType = blockingUserComponent.OriginalBodyType;
_popupSystem.PopupEntity(msgUser, user, Filter.Entities(user));
_popupSystem.PopupEntity(msgOther, user, Filter.Pvs(user).RemoveWhereAttachedEntity(e => e == user));
}
component.IsBlocking = false;
return(true);
}
internal void RegenerateCollision(EntityUid gridEuid, MapChunk chunk, List <Box2i> rectangles)
{
if (!_enabled)
{
return;
}
DebugTools.Assert(chunk.FilledTiles > 0);
if (!EntityManager.TryGetComponent(gridEuid, out PhysicsComponent? physicsComponent))
{
Logger.ErrorS("physics", $"Trying to regenerate collision for {gridEuid} that doesn't have {nameof(physicsComponent)}");
return;
}
if (!EntityManager.TryGetComponent(gridEuid, out FixturesComponent? fixturesComponent))
{
Logger.ErrorS("physics", $"Trying to regenerate collision for {gridEuid} that doesn't have {nameof(fixturesComponent)}");
return;
}
var origin = chunk.Indices * chunk.ChunkSize;
// So we store a reference to the fixture on the chunk because it's easier to cross-reference it.
// This is because when we get multiple fixtures per chunk there's no easy way to tell which the old one
// corresponds with.
// We also ideally want to avoid re-creating the fixture every time a tile changes and pushing that data
// to the client hence we diff it.
// Additionally, we need to handle map deserialization where content may have stored its own data
// on the grid (e.g. mass) which we want to preserve.
var newFixtures = new List <Fixture>();
Span <Vector2> vertices = stackalloc Vector2[4];
foreach (var rectangle in rectangles)
{
var bounds = ((Box2)rectangle.Translated(origin)).Enlarged(_fixtureEnlargement);
var poly = new PolygonShape();
vertices[0] = bounds.BottomLeft;
vertices[1] = bounds.BottomRight;
vertices[2] = bounds.TopRight;
vertices[3] = bounds.TopLeft;
poly.SetVertices(vertices);
var newFixture = new Fixture(
poly,
MapGridHelpers.CollisionGroup,
MapGridHelpers.CollisionGroup,
true)
{
ID = $"grid_chunk-{bounds.Left}-{bounds.Bottom}",
Body = physicsComponent
};
newFixtures.Add(newFixture);
}
var toRemove = new RemQueue <Fixture>();
// Check if we even need to issue an eventbus event
var updated = false;
foreach (var oldFixture in chunk.Fixtures)
{
var existing = false;
// Handle deleted / updated fixtures
// (TODO: Check IDs and cross-reference for updates?)
for (var i = newFixtures.Count - 1; i >= 0; i--)
{
var fixture = newFixtures[i];
if (!oldFixture.Equals(fixture))
{
continue;
}
existing = true;
newFixtures.RemoveSwap(i);
break;
}
// Doesn't align with any new fixtures so delete
if (existing)
{
continue;
}
toRemove.Add(oldFixture);
}
foreach (var fixture in toRemove)
{
chunk.Fixtures.Remove(fixture);
_fixtures.DestroyFixture(fixture, false, fixturesComponent);
}
if (newFixtures.Count > 0 || toRemove.List?.Count > 0)
{
updated = true;
}
// Anything remaining is a new fixture (or at least, may have not serialized onto the chunk yet).
foreach (var fixture in newFixtures)
{
var existingFixture = _fixtures.GetFixtureOrNull(physicsComponent, fixture.ID);
// Check if it's the same (otherwise remove anyway).
if (existingFixture?.Shape is PolygonShape poly &&
poly.EqualsApprox((PolygonShape)fixture.Shape))
{
chunk.Fixtures.Add(existingFixture);
continue;
}
chunk.Fixtures.Add(fixture);
_fixtures.CreateFixture(physicsComponent, fixture, false, fixturesComponent);
}
if (updated)
{
_fixtures.FixtureUpdate(fixturesComponent, physicsComponent);
EntityManager.EventBus.RaiseLocalEvent(gridEuid, new GridFixtureChangeEvent {
NewFixtures = chunk.Fixtures
});
}
}
