initial structure

README.md

@@ -0,0 +1,3 @@
+# gogame
+
+Nostalgic OGame clone in Go

cmd/server.go

@@ -0,0 +1,24 @@
+package cmd
+
+import (
+	"github.com/urfave/cli"
+)
+
+var ServerCommands = []cli.Command{
+	{
+		Name:    "start",
+		Aliases: []string{},
+		Usage:   "start the server",
+		Action:  cmdStart,
+	},
+}
+
+func cmdStart(c *cli.Context) error {
+	if err := config.MustRead(c); err != nil {
+		return err
+	}
+
+	endpoint.Serve()
+
+	return nil
+}

config/config.go

@@ -0,0 +1,50 @@
+package config
+
+import (
+	"strings"
+
+	"github.com/spf13/viper"
+	"github.com/urfave/cli"
+)
+
+type Config struct {
+	Server struct {
+		ServiceApi string
+		AdminApi   string
+	}
+	Mongodb struct {
+		Url string
+	}
+}
+
+var C Config
+
+func MustRead(c *cli.Context) error {
+
+	viper.SetConfigType("yaml")
+	viper.SetConfigName("config")
+	viper.AddConfigPath(".")     // adding home directory as first search path
+	viper.SetEnvPrefix("gogame") // so viper.AutomaticEnv will get matching envvars starting with O2M_
+	viper.AutomaticEnv()         // read in environment variables that match
+	viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
+
+	if c.GlobalString("config") != "" {
+		viper.SetConfigFile(c.GlobalString("config"))
+	}
+
+	if err := viper.ReadInConfig(); err != nil {
+		return err
+	}
+	if err := viper.Unmarshal(&C); err != nil {
+		return err
+	}
+	var err error
+	if C.Id, err = core.IDFromString(C.IdRaw); err != nil {
+		return err
+	}
+	if err := C.KeyStoreBaby.PubKey.UnmarshalText([]byte(C.KeyStoreBaby.PubKeyRaw)); err != nil {
+		return err
+	}
+	C.KeyStoreBaby.PubKeyComp = C.KeyStoreBaby.PubKey.Compress()
+	return nil
+}

db/db.go

@@ -0,0 +1,30 @@
+package database
+
+import mgo "gopkg.in/mgo.v2"
+
+type Db struct {
+	Users    *mgo.Collection
+	Planets  *mgo.Collection
+	Galaxies *mgo.Collection
+}
+
+func New(url string, databaseName string) (*Db, error) {
+	session, err := mgo.Dial("mongodb://" + url)
+	if err != nil {
+		return nil, err
+	}
+	//defer session.Close()
+
+	// Optional. Switch the session to a monotonic behavior.
+	session.SetMode(mgo.Monotonic, true)
+
+	// Optional. Switch the session to a monotonic behavior.
+	session.SetMode(mgo.Monotonic, true)
+
+	db := Db{}
+	db.Users = session.DB(databaseName).C("users")
+	db.Planets = session.DB(databaseName).C("planets")
+	db.Galaxies = session.DB(databaseName).C("galaxies")
+
+	return &db, nil
+}

go.mod

@@ -0,0 +1,12 @@
+module gogame
+
+go 1.12
+
+require (
+	github.com/fatih/color v1.7.0
+	github.com/mattn/go-colorable v0.1.2 // indirect
+	github.com/spf13/viper v1.4.0
+	github.com/stretchr/testify v1.3.0
+	github.com/urfave/cli v1.20.0
+	gopkg.in/mgo.v2 v2.0.0-20180705113604-9856a29383ce
+)

go.sum

@@ -0,0 +1,149 @@
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main.go

@@ -0,0 +1,25 @@
+package main
+
+import (
+	"os"
+
+	"github.com/fatih/color"
+	"github.com/gogame/cmd"
+	"github.com/urfave/cli"
+)
+
+func main() {
+	app := cli.NewApp()
+	app.Name = "gogame"
+	app.Version = "0.0.1-alpha"
+	app.Flags = []cli.Flag{
+		cli.StringFlag{Name: "config"},
+	}
+
+	app.Commands = []cli.Command{}
+	app.Commands = append(app.Commands, cmd.ServerCommands...)
+	err := app.Run(os.Args)
+	if err != nil {
+		color.Red(err.Error())
+	}
+}

models/galaxy.go

@@ -0,0 +1,10 @@
+package models
+
+type Galaxy struct {
+	SolarSystem []string
+}
+
+type SolarSystem struct {
+	Id      string
+	Planets []string // array with ids of the planets
+}

models/planet.go

@@ -0,0 +1,8 @@
+package models
+
+type Planet struct {
+	Id      string
+	Size    int64 // fields
+	Name    string
+	OwnerId string
+}

models/user.go

@@ -0,0 +1,18 @@
+package models
+
+type Resource struct {
+	Value int64
+	Max   int64
+}
+
+type User struct {
+	Id        string
+	Name      string
+	Email     string
+	Resources struct {
+		Metal     Resource
+		Crystal   Resource
+		Deuterium Resource
+		Energy    Resource
+	}
+}

parts.md

@@ -0,0 +1,12 @@
+- queue system
+- server api
+- register/login
+- data models
+	- user
+	- planet
+	- ships
+	- galaxy
+- mongodb connectors
+- planet engine
+- building engine
+- battle engine

queue/queue.go

@@ -0,0 +1,61 @@
+package queue
+
+import (
+	"container/heap"
+)
+
+// An Item is something we manage in a priority queue.
+type Item struct {
+	value    string // id of the item in the full db
+	priority int64  // timestamp of the item in the queue.
+	// The index is needed by update and is maintained by the heap.Interface methods.
+	index int // the index of the item in the heap.
+}
+
+// A PriorityQueue implements heap.Interface and holds Items.
+type PriorityQueue []*Item
+
+func (pq PriorityQueue) Len() int { return len(pq) }
+
+func (pq PriorityQueue) Less(i, j int) bool {
+	// We want Pop to give us the lowest, not highest, priority so we use smaller than here.
+	return pq[i].priority < pq[j].priority
+}
+
+func (pq PriorityQueue) Swap(i, j int) {
+	pq[i], pq[j] = pq[j], pq[i]
+	pq[i].index = i
+	pq[j].index = j
+}
+
+func (pq *PriorityQueue) Push(x interface{}) {
+	n := len(*pq)
+	item := x.(*Item)
+	item.index = n
+	*pq = append(*pq, item)
+}
+
+func (pq *PriorityQueue) Pop() interface{} {
+	old := *pq
+	n := len(old)
+	item := old[n-1]
+	item.index = -1 // for safety
+	*pq = old[0 : n-1]
+	return item
+}
+
+func (pq *PriorityQueue) Look() *Item {
+	if len(*pq) == 0 {
+		return nil
+	}
+	old := *pq
+	item := old[0]
+	return item
+}
+
+// update modifies the priority and value of an Item in the queue.
+func (pq *PriorityQueue) update(item *Item, value string, priority int64) {
+	item.value = value
+	item.priority = priority
+	heap.Fix(pq, item.index)
+}

queue/queue_test.go

@@ -0,0 +1,49 @@
+package queue
+
+import (
+	"container/heap"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestQueue(t *testing.T) {
+	// Some items and their priorities.
+	items := map[string]int64{
+		"id0": 2,
+		"id1": 5,
+		"id2": 4,
+	}
+
+	// Create a priority queue, put the items in it, and
+	// establish the priority queue (heap) invariants.
+	pq := make(PriorityQueue, len(items))
+	i := 0
+	for value, priority := range items {
+		pq[i] = &Item{
+			value:    value,
+			priority: priority,
+			index:    i,
+		}
+		i++
+	}
+	heap.Init(&pq)
+
+	assert.Equal(t, pq.Look().value, "id0")
+
+	// Insert a new item and then modify its priority.
+	item := &Item{
+		value:    "id3",
+		priority: 3,
+	}
+	heap.Push(&pq, item)
+	pq.update(item, item.value, 1)
+	assert.Equal(t, pq.Look().value, "id3")
+
+	// Take the items out; they arrive in increasing priority order.
+	for pq.Len() > 0 {
+		_ = heap.Pop(&pq).(*Item)
+		// fmt.Println("priority", item.priority, ":", item.value)
+	}
+	assert.Nil(t, pq.Look())
+}

services/usersrv/usersrv.go

@@ -0,0 +1,5 @@
+package usersrv
+
+func New() {
+
+}