34 lines
674 B
Go
34 lines
674 B
Go
package ecs
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import (
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"github.com/yohamta/donburi"
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"joylink.club/ecs/filter"
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)
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type Query struct {
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*donburi.Query
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}
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// NewQuery creates a new query.
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// It receives arbitrary filters that are used to filter entities.
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func NewQuery(filter filter.LayoutFilter) *Query {
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return &Query{
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donburi.NewQuery(filter),
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}
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}
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func (q *Query) Each(w World, callback func(*Entry)) {
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q.Query.Each(w.(*world).world, func(entry *donburi.Entry) {
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callback(&Entry{entry})
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})
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}
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func (q *Query) Count(w World) int {
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return q.Query.Count(w.(*world).world)
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}
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func (q *Query) First(w World) (entry *Entry, ok bool) {
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e, ok := q.Query.First(w.(*world).world)
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return &Entry{e}, ok
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}
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