private static void ValidateUnitAttackPosition(Game game, Unit unit, User owner, long toX, long toY)
{
if (toX < 0 || toX > BattleFieldMaxX || toY < 0 || toY > BattleFieldMaxY)
{
throw new ServerErrorException("Units cannot attack outside of the battle field", "INV_ATT_POS");
}
var diffX = Math.Abs(unit.PositionX - toX);
var diffY = Math.Abs(unit.PositionY - toY);
if (diffX + diffY > unit.Range)
{
throw new ServerErrorException("The Unit cannot attack that far", "INV_ATT_RANGE");
}
}
private static Unit GetWarrior(UnitType type, int x, int y)
{
var warrior = new Unit()
{
PositionX = x,
PositionY = y,
HitPoints = WarriorHitPoints,
Attack = WarriorAttack,
Armor = WarriorArmor,
Range = WarriorRange,
Speed = WarriorSpeed,
UnitType = type
};
return warrior;
}
private static Unit GetRanger(UnitType type, int x, int y)
{
var ranger = new Unit()
{
PositionX = x,
PositionY = y,
HitPoints = RangerHitPoints,
Attack = RangerAttack,
Armor = RangerArmor,
Range = RangerRange,
Speed = RangerSpeed,
UnitType = type
};
return ranger;
}
private static void ValidateUserUnitInGame(User user, Unit unit, Game game)
{
if (game.UserInTurn != user.Id)
{
throw new ServerErrorException("It is not your turn", "INV_USR_TURN");
}
if (!user.Units.Any(u => u == unit))
{
throw new ServerErrorException("This is not your unit", "INV_USR_UNIT");
}
if (!game.Units.Any(u => u == unit))
{
throw new ServerErrorException("No such unit in the game", "INV_USR_GAME");
}
}
private static void ValidateUnitMovePosition(Game game, Unit unit, long toX, long toY)
{
if (toX < 0 || toX > BattleFieldMaxX || toY < 0 || toY > BattleFieldMaxY)
{
throw new ServerErrorException("Units cannot go outside of the battle field", "INV_UNIT_POS");
}
var diffX = Math.Abs(unit.PositionX - toX);
var diffY = Math.Abs(unit.PositionY - toY);
if (diffX + diffY > unit.Speed)
{
throw new ServerErrorException("Unit cannot move to that position", "INV_UNIT_POS");
}
if (game.Units.Any(u => u.HitPoints > 0 && u.PositionX == toX && u.PositionY == toY))
{
throw new ServerErrorException("Position is already occupied", "INV_UNIT_POS");
}
}