/// <summary>
/// Injects EcsWorld / EcsFilter fields to IEcsSystem.
/// </summary>
/// <param name="system">System to scan for injection.</param>
/// <param name="world">EcsWorld instance to inject.</param>
public static void Inject(IEcsSystem system, EcsWorld world)
{
var systemType = system.GetType();
if (!Attribute.IsDefined(systemType, typeof(EcsInjectAttribute)))
{
return;
}
var worldType = world.GetType();
var filterType = typeof(EcsFilter);
foreach (var f in systemType.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
// EcsWorld
if (f.FieldType.IsAssignableFrom(worldType) && !f.IsStatic)
{
f.SetValue(system, world);
continue;
}
// EcsFilter
Internals.EcsHelpers.Assert(f.FieldType != filterType,
string.Format("Cant use EcsFilter type at \"{0}\" system for dependency injection, use generic version instead", system));
if (f.FieldType.IsSubclassOf(filterType) && !f.IsStatic)
{
f.SetValue(system, world.GetFilter(f.FieldType));
}
}
}
/// <summary>
/// Creates entity with single component at specified EcsWorld.
/// </summary>
/// <param name="world">World instance.</param>
public static Inc1 Create(EcsWorld world)
{
world.GetFilter <EcsFilterSingle <Inc1> > ();
var data = world.CreateEntityWith <Inc1> ();
world.ProcessDelayedUpdates();
return(data);
}
/// <summary>
/// Injects EcsWorld / EcsFilter fields to IEcsSystem.
/// </summary>
/// <param name="system">System to scan for injection.</param>
/// <param name="world">EcsWorld instance to inject.</param>
public static void Inject(IEcsSystem system, EcsWorld world, System.Collections.Generic.Dictionary <Type, object> injections)
{
var systemType = system.GetType();
if (!Attribute.IsDefined(systemType, typeof(EcsInjectAttribute)))
{
return;
}
var worldType = world.GetType();
var filterType = typeof(EcsFilter);
var ignoreType = typeof(EcsIgnoreInjectAttribute);
foreach (var f in systemType.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
{
// skip fields with [EcsIgnoreInject] attribute.
if (Attribute.IsDefined(f, ignoreType))
{
continue;
}
// EcsWorld
if (f.FieldType.IsAssignableFrom(worldType) && !f.IsStatic)
{
f.SetValue(system, world);
continue;
}
// EcsFilter
#if DEBUG
if (f.FieldType == filterType)
{
throw new Exception(string.Format("Cant use EcsFilter type at \"{0}\" system for dependency injection, use generic version instead", system));
}
#endif
if (f.FieldType.IsSubclassOf(filterType) && !f.IsStatic)
{
f.SetValue(system, world.GetFilter(f.FieldType));
continue;
}
// Other injections.
foreach (var pair in injections)
{
if (f.FieldType.IsAssignableFrom(pair.Key) && !f.IsStatic)
{
f.SetValue(system, pair.Value);
break;
}
}
}
}