89 lines
1.9 KiB
Go
89 lines
1.9 KiB
Go
package mapblockaccessor
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import (
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"mapserver/coords"
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"mapserver/eventbus"
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"mapserver/layer"
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"mapserver/mapblockparser"
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cache "github.com/patrickmn/go-cache"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/sirupsen/logrus"
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)
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type FindMapBlocksByMtimeResult struct {
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HasMore bool
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LastPos *coords.MapBlockCoords
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LastMtime int64
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List []*mapblockparser.MapBlock
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UnfilteredCount int
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}
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func (a *MapBlockAccessor) FindMapBlocksByMtime(lastmtime int64, limit int, layerfilter []*layer.Layer) (*FindMapBlocksByMtimeResult, error) {
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fields := logrus.Fields{
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"lastmtime": lastmtime,
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"limit": limit,
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}
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logrus.WithFields(fields).Debug("FindMapBlocksByMtime")
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timer := prometheus.NewTimer(dbGetMtimeDuration)
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blocks, err := a.accessor.FindBlocksByMtime(lastmtime, limit)
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timer.ObserveDuration()
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if err != nil {
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return nil, err
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}
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result := FindMapBlocksByMtimeResult{}
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mblist := make([]*mapblockparser.MapBlock, 0)
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var newlastpos *coords.MapBlockCoords
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result.HasMore = len(blocks) == limit
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result.UnfilteredCount = len(blocks)
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for _, block := range blocks {
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newlastpos = block.Pos
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if result.LastMtime < block.Mtime {
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result.LastMtime = block.Mtime
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}
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inLayer := false
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for _, l := range layerfilter {
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if (block.Pos.Y*16) >= l.From && (block.Pos.Y*16) <= l.To {
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inLayer = true
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break
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}
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}
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if !inLayer {
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continue
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}
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fields := logrus.Fields{
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"x": block.Pos.X,
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"y": block.Pos.Y,
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"z": block.Pos.Z,
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}
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logrus.WithFields(fields).Debug("mapblock")
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key := getKey(block.Pos)
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mapblock, err := mapblockparser.Parse(block.Data, block.Mtime, block.Pos)
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if err != nil {
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return nil, err
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}
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a.Eventbus.Emit(eventbus.MAPBLOCK_RENDERED, mapblock)
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a.c.Set(key, mapblock, cache.DefaultExpiration)
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mblist = append(mblist, mapblock)
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}
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result.LastPos = newlastpos
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result.List = mblist
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return &result, nil
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}
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