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Support multiple ITargetable traits

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This commit is contained in:
atlimit8
2015-07-13 15:22:39 -05:00
parent 4bd34e3ed3
commit f5c3575c5a
13 changed files with 39 additions and 38 deletions
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20
OpenRA.Game/Traits/Target.cs
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@@ -22,7 +22,7 @@ namespace OpenRA.Traits
TargetType type;
Actor actor;
ITargetable targetable;
IEnumerable<ITargetable> targetable;
FrozenActor frozen;
WPos pos;
int generation;
@@ -48,7 +48,7 @@ namespace OpenRA.Traits
return new Target
{
actor = a,
targetable = a.TraitOrDefault<ITargetable>(),
targetable = a.TraitsImplementing<ITargetable>(),
type = TargetType.Actor,
generation = a.Generation,
};
@@ -83,15 +83,18 @@ namespace OpenRA.Traits
if (targeter == null || Type == TargetType.Invalid)
return false;
if (targetable != null && !targetable.TargetableBy(actor, targeter))
var targeted = this.actor;
if (targeted != null && !targetable.Any(t => t.IsTraitEnabled() && t.TargetableBy(targeted, targeter)))
return false;
return true;
}
// Currently all or nothing.
// TODO: either replace based on target type or put in singleton trait
public bool RequiresForceFire
{
get { return targetable != null && targetable.RequiresForceFire; }
get { return targetable != null && targetable.Any(Exts.IsTraitEnabled) && targetable.Where(Exts.IsTraitEnabled).All(t => t.RequiresForceFire); }
}
// Representative position - see Positions for the full set of targetable positions.
@@ -123,12 +126,13 @@ namespace OpenRA.Traits
switch (Type)
{
case TargetType.Actor:
var targetable = actor.TraitOrDefault<ITargetable>();
if (targetable == null)
var targetable = actor.TraitsImplementing<ITargetable>().Where(Exts.IsTraitEnabled);
if (!targetable.Any())
return new[] { actor.CenterPosition };
var positions = targetable.TargetablePositions(actor);
return positions.Any() ? positions : new[] { actor.CenterPosition };
var targeted = this.actor;
var positions = targetable.SelectMany(t => t.TargetablePositions(targeted)).Distinct();
return positions.Any() ? positions : new[] { targeted.CenterPosition };
case TargetType.FrozenActor:
return new[] { frozen.CenterPosition };
case TargetType.Terrain: