got bot moving to random locations

main.go

@@ -2,12 +2,14 @@ package main
 
 import (
 	"bitbucket.org/hackerbots/bot"
+	"bitbucket.org/hackerbots/vector"
 	"code.google.com/p/go.net/websocket"
 	"encoding/json"
 	"errors"
 	"flag"
 	"fmt"
 	"log"
+	"math/rand"
 	"net/http"
 )
 
@@ -16,6 +18,11 @@ var speed = flag.Float64("speed", 150, "")
 var weaponRadius = flag.Int("wrad", 100, "weapon radius")
 var scannerRadius = flag.Int("srad", 100, "scanner radius")
 
+type infos struct {
+	id            string
+	width, height float64
+}
+
 func connect() (*websocket.Conn, error) {
 	origin := "http://localhost/"
 	url := "ws://localhost:8666/ws/"
@@ -38,19 +45,19 @@ func createGame() (string, error) {
 	return g.Id, err
 }
 
-func negociate(ws *websocket.Conn, gameid string) (err error) {
+func negociate(ws *websocket.Conn, gameid string) (i *infos, err error) {
 	log.Printf("trying to connect to game %s", gameid)
 	err = websocket.JSON.Send(ws, bot.GameID{
 		gameid,
 	})
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	var idreq bot.IdRequest
 	err = websocket.JSON.Receive(ws, &idreq)
 	if err != nil || idreq.Type == "failure" {
-		return errors.New(fmt.Sprintf("failure: %+v", idreq))
+		return nil, errors.New(fmt.Sprintf("failure: %+v", idreq))
 	}
 	log.Printf("%+v", idreq)
 
@@ -60,14 +67,14 @@ func negociate(ws *websocket.Conn, gameid string) (err error) {
 		Type:      "robot",
 	})
 	if err != nil {
-		return err
+		return nil, err
 	}
 
 	var gameparam bot.GameParam
 	err = websocket.JSON.Receive(ws, &gameparam)
 	log.Printf("gameparam: %+v", gameparam)
 	if gameparam.Type != "gameparam" {
-		return errors.New("didn't receive a good gameparam")
+		return nil, errors.New("didn't receive a good gameparam")
 	}
 	log.Printf("%+v", gameparam)
 
@@ -84,10 +91,14 @@ func negociate(ws *websocket.Conn, gameid string) (err error) {
 	var handshake bot.Handshake
 	websocket.JSON.Receive(ws, &handshake)
 	if !handshake.Success {
-		return errors.New("failed to validate correct stats request")
+		return nil, errors.New("failed to validate correct stats request")
 	}
 	log.Printf("%+v", handshake)
-	return err
+	return &infos{
+		id:     idreq.AssignedID,
+		width:  gameparam.BoardSize.Width,
+		height: gameparam.BoardSize.Height,
+	}, err
 }
 
 func main() {
@@ -107,18 +118,47 @@ func main() {
 	if err != nil {
 		log.Fatal(err)
 	}
-	if err = negociate(ws, gameid); err != nil {
+	board_info, err := negociate(ws, gameid)
+	if err != nil {
 		log.Fatal(err)
 	}
 
+	moveto := govector.Point2d{
+		X: rand.Float64() * board_info.width,
+		Y: rand.Float64() * board_info.height,
+	}
+	log.Printf("%+v", moveto)
+
+	var me bot.Robot
+
 	for {
 		var boardstate bot.Boardstate
 		err = websocket.JSON.Receive(ws, &boardstate)
 		if err != nil {
 			log.Fatal("Connection lost")
 		}
-		// log.Printf("%+v", boardstate)
-		// TODO: logic
+		for _, bot := range boardstate.Robots {
+			if bot.Id == board_info.id {
+				me = bot
+				break
+			}
+		}
+		log.Printf("%+v: %+v", me.Position, moveto)
+		// come up with new location if I am there
+		if govector.Distance(me.Position, moveto) < 3.0 {
+			log.Println("finally got there")
+			moveto = govector.Point2d{
+				X: rand.Float64() * board_info.width,
+				Y: rand.Float64() * board_info.height,
+			}
+		}
+
 		// TODO: send instructions
+		err = websocket.JSON.Send(ws, bot.Instruction{
+			MoveTo: &moveto,
+		})
+		if err != nil {
+			log.Fatal(err)
+		}
 	}
 }