Split Target.Recalculate into methods with and without invalidation.

TargetExtensions is moved into its own file.
This commit is contained in:
Paul Chote
2019-01-16 11:07:07 +00:00
parent 2080c72ab9
commit d03c5b1c48
6 changed files with 94 additions and 48 deletions

View File

@@ -53,7 +53,7 @@ namespace OpenRA.Mods.Common.Activities
protected virtual Target RecalculateTarget(Actor self)
{
return target.Recalculate(self.Owner);
return target.RecalculateInvalidatingHiddenTargets(self.Owner);
}
public override Activity Tick(Actor self)
@@ -148,47 +148,4 @@ namespace OpenRA.Mods.Common.Activities
return AttackStatus.Attacking;
}
}
public static class TargetExts
{
/// <summary>Update (Frozen)Actor targets to account for visibility changes or actor replacement</summary>
public static Target Recalculate(this Target t, Player viewer)
{
// Check whether the target has transformed into something else
// HACK: This relies on knowing the internal implementation details of Target
if (t.Type == TargetType.Invalid && t.Actor != null && t.Actor.ReplacedByActor != null)
t = Target.FromActor(t.Actor.ReplacedByActor);
// Bot-controlled units aren't yet capable of understanding visibility changes
if (viewer.IsBot)
return t;
if (t.Type == TargetType.Actor)
{
// Actor has been hidden under the fog
if (!t.Actor.CanBeViewedByPlayer(viewer))
{
// Replace with FrozenActor if applicable, otherwise drop the target
var frozen = viewer.FrozenActorLayer.FromID(t.Actor.ActorID);
return frozen != null ? Target.FromFrozenActor(frozen) : Target.Invalid;
}
}
else if (t.Type == TargetType.FrozenActor)
{
// Frozen actor has been revealed
if (!t.FrozenActor.Visible || !t.FrozenActor.IsValid)
{
// Original actor is still alive
if (t.FrozenActor.Actor != null && t.FrozenActor.Actor.CanBeViewedByPlayer(viewer))
return Target.FromActor(t.FrozenActor.Actor);
// Original actor was killed while hidden
if (t.Actor == null)
return Target.Invalid;
}
}
return t;
}
}
}