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MoonTools.ECS
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add Filter.NthEntity

filter_relations
cosmonaut 2022-08-17 15:29:38 -07:00
parent bb359d339b
commit a9032603ec
2 changed files with 8 additions and 0 deletions
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5
src/ComponentDepot.cs
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@ -185,6 +185,11 @@ namespace MoonTools.ECS
} }
} }
public Entity FilterNthEntity(Filter filter, int index)
{
return new Entity(filterSignatureToEntityIDs[filter.Signature][index]);
}
public Entity FilterRandomEntity(Filter filter) public Entity FilterRandomEntity(Filter filter)
{ {
var randomIndex = RandomGenerator.Next(FilterCount(filter)); var randomIndex = RandomGenerator.Next(FilterCount(filter));

3
src/Filter.cs
View File

@ -20,5 +20,8 @@ namespace MoonTools.ECS
public int Count => ComponentDepot.FilterCount(this); public int Count => ComponentDepot.FilterCount(this);
public bool Empty => Count == 0; public bool Empty => Count == 0;
// WARNING: this WILL crash if the index is out of range!
public Entity NthEntity(int index) => ComponentDepot.FilterNthEntity(this, index);
} }
} }