func (pl *Player) RPC_PQuery() ([]interface{}, error) {
const tileDist = 1.5
tx, ty := geom.LL2TilePos(float64(pl.Lat), float64(pl.Lon))
maxLat, maxLon := geom.TilePos2LL(tx+tileDist, ty-tileDist)
minLat, minLon := geom.TilePos2LL(tx-tileDist, ty+tileDist)
//log.Println("q pos:", minLon, maxLon, minLat, maxLat)
//log.Println("q que:", qtPlayers.Query(minLon, maxLon, minLat, maxLat))
vals := qtPlayers.Query(minLon, maxLon, minLat, maxLat)
ret := make([]interface{}, 0, len(vals))
for i := 0; i < len(vals); i++ {
op := vals[i]
//ignore self
if op.V == pl.PId {
continue
}
rop := make([]interface{}, 3)
rop[0] = op.Y
rop[1] = op.X
rop[2] = op.V
ret = append(ret, rop)
}
return ret, nil
}
func GetPOIs(lat float64, lon float64) (pois []*POI, pending int) {
x, y := geom.LL2TilePos(lat, lon)
xInt, yInt := int(x), int(y)
pois = make([]*POI, 0)
for iX := xInt - 1; iX <= xInt+1; iX++ {
for iY := yInt - 1; iY <= yInt+1; iY++ {
mt := GetMapTile(strconv.Itoa(iX) + "," + strconv.Itoa(iY))
if mt != nil {
//pois = append(pois, mt.Pois...)
for _, poi := range mt.Pois {
poi.UpdateInfo()
if poi.IsValid() {
pois = append(pois, poi)
}
}
} else {
pending++
}
}
}
for i := 0; i < len(pois); i++ {
for j := i + 1; j < len(pois); j++ {
pi := pois[i]
po := pois[j]
dist := geom.LLDistanceKm(pi.Lat, pi.Lon, po.Lat, po.Lon)
if dist < 0.025 {
//log.Println("skippoi", po.Name, dist)
pois[j], pois = pois[len(pois)-1], pois[:len(pois)-1]
j--
}
}
}
return
}
func LL2MapPos(lat float64, lon float64) string {
x, y := geom.LL2TilePos(lat, lon)
xInt, yInt := int(x), int(y)
return strconv.Itoa(xInt) + "," + strconv.Itoa(yInt)
}