/// <summary>Creates an attacking ship.</summary>
/// <param name="startPosition">The start position.</param>
/// <param name="targetPosition">The target position.</param>
/// <param name="faction">The faction.</param>
public void CreateAttackingShip(ref FarPosition startPosition, ref FarPosition targetPosition, Factions faction)
{
var ship = EntityFactory.CreateAIShip(Manager, "L1_AI_Ship", faction, startPosition, _random);
var ai = ((ArtificialIntelligence)Manager.GetComponent(ship, ArtificialIntelligence.TypeId));
ai.AttackMove(ref targetPosition);
}
/// <summary>Processes a single spawn from the top of the spawn queue.</summary>
private void ProcessSpawn(ulong id)
{
// Get the cell position.
var position = CellSystem.GetSubCellCoordinatesFromId(id);
// Get the cell info to know what faction we're spawning for. Use the large cell id for that,
// because we only store info for that.
var cellInfo = ((UniverseSystem)Manager.GetSystem(UniverseSystem.TypeId))
.GetCellInfo(CellSystem.GetCellIdFromCoordinates(position));
// The area covered by the cell.
FarRectangle cellArea;
cellArea.X = position.X;
cellArea.Y = position.Y;
cellArea.Width = CellSystem.SubCellSize;
cellArea.Height = CellSystem.SubCellSize;
// Get center point for spawn group.
FarPosition spawnPoint;
spawnPoint.X = _random.NextInt32((int)cellArea.Left, (int)cellArea.Right);
spawnPoint.Y = _random.NextInt32((int)cellArea.Top, (int)cellArea.Bottom);
// Configuration for spawned ships.
string[] ships;
ArtificialIntelligence.AIConfiguration[] configurations = null;
var formation = SquadSystem.Formations.None;
// TODO different groups, based on cell info? definable via editor maybe?
if (_random.NextDouble() < 0.5f)
{
ships = new[]
{
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship"
};
configurations = new[]
{
new ArtificialIntelligence.AIConfiguration
{
AggroRange = UnitConversion.ToSimulationUnits(600)
}
};
formation = SquadSystem.Formations.Block;
}
else
{
ships = new[]
{
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship",
"L1_AI_Ship"
};
configurations = new[]
{
new ArtificialIntelligence.AIConfiguration
{
AggroRange = UnitConversion.ToSimulationUnits(800)
}
};
formation = SquadSystem.Formations.Vee;
}
// Spawn all ships.
Squad leaderSquad = null;
for (var i = 0; i < ships.Length; i++)
{
// Get the configuration for this particular ship. If we don't have enough configurations
// we just re-use the last existing one.
var configuration = configurations != null && configurations.Length > 0
? configurations[Math.Min(i, configurations.Length - 1)]
: null;
// Get a position nearby the spawn (avoids spawning all ships in one point).
var spawnPosition = spawnPoint;
spawnPosition.X += UnitConversion.ToSimulationUnits(_random.NextInt32(-100, 100));
spawnPosition.Y += UnitConversion.ToSimulationUnits(_random.NextInt32(-100, 100));
// Create the ship and get the AI component.
var ship = EntityFactory.CreateAIShip(
Manager, ships[i], cellInfo.Faction, spawnPosition, _random, configuration);
var ai = (ArtificialIntelligence)Manager.GetComponent(ship, ArtificialIntelligence.TypeId);
// Push fallback roam behavior, if an area has been specified.
ai.Roam(ref cellArea);
// If we have a squad push the squad component.
if (ships.Length <= 1)
{
// No squad, skip squad component.
continue;
}
var squad = Manager.AddComponent <Squad>(ship);
// If we're not the leader we guard him, otherwise mark us as
// the squad leader (ergo: first loop iteration).
if (leaderSquad != null)
{
leaderSquad.AddMember(ship);
ai.Guard(leaderSquad.Entity);
}
else
{
leaderSquad = squad;
squad.Formation = formation;
}
}
}
