//--- Methods ---
public async Task StartAsync(int botCount)
{
// reset game state
GameSession.LastStatusUpdate = _provider.UtcNow;
GameSession.CurrentGameTurn = 0;
GameSession.Missiles.Clear();
GameSession.Messages.Clear();
GameSession.Bots.Clear();
for (var i = 0; i < botCount; ++i)
{
GameSession.Bots.Add(BotBuild.GetDefaultBotBuild(GameSession.Id, i));
}
// get configuration for all bots
var messages = (await Task.WhenAll(GameSession.Bots.Select(bot => InitializeBotAsync(bot)))).ToList();
foreach (var message in messages)
{
AddMessage(message);
}
// place bots on playfield
var marginWidth = GameSession.BoardWidth * 0.1f;
var marginHeight = GameSession.BoardHeight * 0.1f;
var attempts = 0;
again:
if (attempts >= 100)
{
throw new ApplicationException($"unable to place all bots with minimum separation of {GameSession.MinBotStartDistance:N2}");
}
// assign random locations to all bots
foreach (var bot in GameSession.Bots.Where(bot => bot.Status == BotStatus.Alive))
{
bot.X = marginWidth + _provider.NextRandomFloat() * (GameSession.BoardWidth - 2.0f * marginWidth);
bot.Y = marginHeight + _provider.NextRandomFloat() * (GameSession.BoardHeight - 2.0f * marginHeight);
}
// verify that none of the bots are too close to each other
for (var i = 0; i < GameSession.Bots.Count; ++i)
{
for (var j = i + 1; j < GameSession.Bots.Count; ++j)
{
if ((GameSession.Bots[i].Status == BotStatus.Alive) && (GameSession.Bots[j].Status == BotStatus.Alive))
{
var distance = GameMath.Distance(GameSession.Bots[i].X, GameSession.Bots[i].Y, GameSession.Bots[j].X, GameSession.Bots[j].Y);
if (distance < GameSession.MinBotStartDistance)
{
++attempts;
goto again;
}
}
}
}
}
private async Task <string> InitializeBotAsync(BotInfo bot)
{
var config = await _provider.GetBotBuild(bot);
bot.Name = config?.Name ?? $"#{bot.Index}";
if (config is null)
{
// missing config information, consider bot dead
bot.Status = BotStatus.Dead;
bot.TimeOfDeathGameTurn = 0;
return($"{bot.Name} (R{bot.Index}) was disqualified due to failure to initialize");
}
// read bot configuration
var success = true;
var buildPoints = 0;
var buildDescription = new StringBuilder();
// read radar configuration
buildPoints += (int)config.Radar;
buildDescription.Append($"{config.Radar} Radar");
success &= BotBuild.TrySetRadar(config.Radar, bot);
// read engine configuration
buildPoints += (int)config.Engine;
buildDescription.Append($", {config.Engine} Engine");
success &= BotBuild.TrySetEngine(config.Engine, bot);
// read armor configuration
buildPoints += (int)config.Armor;
buildDescription.Append($", {config.Armor} Armor");
success &= BotBuild.TrySetArmor(config.Armor, bot);
// read missile configuration
buildPoints += (int)config.Missile;
buildDescription.Append($", {config.Missile} Missile");
success &= BotBuild.TrySetMissile(config.Missile, bot);
// check if bot respected the max build points
if (buildPoints > GameSession.MaxBuildPoints)
{
success = false;
}
// check if bot is disqualified due to a bad build
if (!success)
{
bot.Status = BotStatus.Dead;
bot.TimeOfDeathGameTurn = GameSession.CurrentGameTurn;
return($"{bot.Name} (R{bot.Index}) was disqualified due to bad configuration ({buildDescription}: {buildPoints} points)");
}
bot.InternalState = config.InternalStartState;
bot.LastStatusUpdate = _provider.UtcNow;
return($"{bot.Name} (R{bot.Index}) has joined the battle ({buildDescription}: {buildPoints} points)");
}
