mtsatellite/cmd/mtseeder/baselevel.go

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// Copyright 2014, 2015 by Sascha L. Teichmann
// Use of this source code is governed by the MIT license
// that can be found in the LICENSE file.
package main
import (
"log"
"os"
"path/filepath"
"strconv"
"sync"
"bitbucket.org/s_l_teichmann/mtsatellite/common"
)
const (
2015-05-01 14:04:23 +02:00
baseLevelDir = "8"
)
type blockPos struct {
x, z int16
j, i int
}
func createTiles(
btc *common.BaseTileCreator,
jobs chan blockPos,
done *sync.WaitGroup) {
defer done.Done()
defer btc.Close()
for job := range jobs {
btc.CreateTile(job.x-1, job.z-1, job.i, job.j)
}
}
func order(a, b int) (int, int) {
if a < b {
return a, b
}
return b, a
}
func createBaseLevel(
address string,
xMin, zMin, xMax, zMax int,
transparent bool, transparentDim float32,
colorsFile, outDir string,
numWorkers int) (err error) {
var colors *common.Colors
if colors, err = common.ParseColors(colorsFile); err != nil {
return
}
colors.TransparentDim = transparentDim
baseDir := filepath.Join(outDir, baseLevelDir)
if err = os.MkdirAll(baseDir, os.ModePerm); err != nil {
return
}
jobs := make(chan blockPos)
var done sync.WaitGroup
for i := 0; i < numWorkers; i++ {
var client *common.RedisClient
if client, err = common.NewRedisClient("tcp", address); err != nil {
return
}
done.Add(1)
btc := common.NewBaseTileCreator(client, colors, transparent, baseDir, false)
go createTiles(btc, jobs, &done)
}
zMin, zMax = order(zMin, zMax)
for x, i := int16(xMin), 0; x <= int16(xMax); x += 16 {
xDir := filepath.Join(baseDir, strconv.Itoa(i))
log.Printf("creating dir: %s\n", xDir)
if err = os.MkdirAll(xDir, os.ModePerm); err != nil {
log.Fatalf("Cannot create directory '%s': %s\n", xDir, err)
}
for z, j := int16(zMin), 0; z <= int16(zMax); z += 16 {
jobs <- blockPos{x: x, z: z, i: i, j: j}
j++
}
i++
}
close(jobs)
done.Wait()
return
}