// ToWire converts the board to the wire representation with respect to the
// given faction (since the wire factions are us vs. them).
func (b *Board) ToWire(out botapi.Board, faction int) error {
out.SetWidth(uint16(b.Size.X))
out.SetHeight(uint16(b.Size.Y))
out.SetRound(int32(b.Round))
robots, err := botapi.NewRobot_List(out.Segment(), int32(len(b.Locs)))
if err != nil {
return err
}
if err = out.SetRobots(robots); err != nil {
return err
}
n := 0
for loc, r := range b.Locs {
outr := robots.At(n)
outr.SetId(uint32(r.ID))
outr.SetX(uint16(loc.X))
outr.SetY(uint16(loc.Y))
outr.SetHealth(int16(r.Health))
if r.Faction == faction {
outr.SetFaction(botapi.Faction_mine)
} else {
outr.SetFaction(botapi.Faction_opponent)
}
n++
}
return nil
}
// boardFromWire converts the wire representation to the board
func boardFromWire(wire botapi.Board) (*Board, error) {
b := EmptyBoard(BoardConfig{
Size: Loc{X: int(wire.Width()), Y: int(wire.Height())},
})
b.Round = int(wire.Round())
bots, err := wire.Robots()
if err != nil {
return b, err
}
for i := 0; i < bots.Len(); i++ {
bot := bots.At(i)
loc := Loc{
X: int(bot.X()),
Y: int(bot.Y()),
}
b.Locs[loc] = robotFromWire(bot)
}
return b, nil
}
func convertBoard(wire botapi.Board) (b *Board, playerBots []*Robot, err error) {
w, h := int(wire.Width()), int(wire.Height())
cells := make([]*Robot, w*h)
cols := make([][]*Robot, w)
for x := range cols {
cols[x] = cells[x*h : (x+1)*h]
}
robots, err := wire.Robots()
if err != nil {
return nil, nil, err
}
playerBots = make([]*Robot, 0, robots.Len())
for i, n := 0, robots.Len(); i < n; i++ {
r := robots.At(i)
l := Loc{X: int(r.X()), Y: int(r.Y())}
rr := &Robot{
ID: r.Id(),
Loc: l,
Health: int(r.Health()),
}
switch r.Faction() {
case botapi.Faction_mine:
rr.Faction = MyFaction
playerBots = append(playerBots, rr)
case botapi.Faction_opponent:
fallthrough
default:
rr.Faction = OpponentFaction
}
cols[l.X][l.Y] = rr
}
return &Board{
Size: Loc{w, h},
Round: int(wire.Round()),
Cells: cols,
}, playerBots, nil
}