public virtual Entity Install(EntityWorld world, Entity shipEntity, Entity hardpointEntity)
{
var slot = hardpointEntity.GetComponent<HardpointComponent>();
if (!hardpointEntity.IsChildOf(shipEntity)) throw new InvalidOperationException("Cannot install, ship entity does not own hardpoint entity.");
if (slot == null) throw new InvalidOperationException("Cannot install on non-hardpoint entity.");
var shipComponent = shipEntity.GetComponent<ShipComponent>();
var moduleEntity = world.CreateEntity();
var hardpointTransform = hardpointEntity.GetComponent<Transform>();
var moduleTransform = moduleEntity.AddComponentFromPool<Transform>();
moduleTransform.Position = Vector2.Zero;
moduleTransform.Rotation = 0;
moduleTransform.Scale = Vector2.One;
moduleTransform.Origin = -hardpointTransform.Origin;
var scale = hardpointTransform.Scale;
var origin = -hardpointTransform.Origin;
if (scale.X < 0)
{
scale.X = Math.Abs(scale.X);
origin.X *= -1;
}
if (scale.Y < 0)
{
scale.Y *= Math.Abs(scale.Y);
origin.Y *= -1;
}
moduleTransform.Scale = scale;
moduleTransform.Origin = origin;
hardpointEntity.AddChild(moduleEntity);
var previousInstalled = slot.InstalledEntity;
if (previousInstalled != null)
{
previousInstalled.GetComponent<ModuleComponent>().Module.Uninstall(shipEntity, previousInstalled);
}
if (!string.IsNullOrWhiteSpace(PartGroupId))
{
ShipEntityFactory.GetShipModel(PartGroupId).CreateChildEntities(world, moduleEntity);
}
var moduleComponent = new ModuleComponent
{
HardpointEntity = hardpointEntity,
Module = this
};
slot.InstalledEntity = moduleEntity;
moduleEntity.AddComponent(moduleComponent);
return moduleEntity;
}