public static float DistanceSqr(Vector2i a, Vector2i b)
{
return(Vector2i.DistanceSqr(a, b));
}
/// <summary>
/// Runs the generator and returns the spaces in the generated entrance.
/// </summary>
/// <param name="rooms">
/// The rooms that were generated. Used to choose a place to place an entrance.
/// </param>
/// <param name="theMap">
/// The map that new units are being generated into.
/// </param>
/// <param name="unitsToKeep">
/// The units to keep alive in the map, indexed by their ID's.
/// Pass "null" if new units should be generated from scratch.
/// </param>
public List <Vector2i> Generate(Map theMap, EtMGame.WorldSettings genSettings,
List <Room> rooms, int nThreads, int seed,
UlongSet unitsToKeep = null)
{
//Choose a room and place the level's "entrance" into the middle of it.
List <Vector2i> entranceSpaces = new List <Vector2i>();
{
PRNG roomPlacer = new PRNG(unchecked (seed * 8957));
Vector2i entrance = rooms[roomPlacer.NextInt() % rooms.Count].OriginalBounds.Center;
entrance = new Vector2i(Mathf.Clamp(entrance.x, 1, genSettings.Size - 2),
Mathf.Clamp(entrance.y, 1, genSettings.Size - 2));
//Carve a small circle out of the map for the entrance.
const float entranceRadius = 1.75f,
entranceRadiusSqr = entranceRadius * entranceRadius;
int entranceRadiusCeil = Mathf.CeilToInt(entranceRadius);
Vector2i entranceRegionMin = entrance - new Vector2i(entranceRadiusCeil,
entranceRadiusCeil),
entranceRegionMax = entrance + new Vector2i(entranceRadiusCeil,
entranceRadiusCeil);
entranceRegionMin = new Vector2i(Mathf.Clamp(entranceRegionMin.x,
0, genSettings.Size - 1),
Mathf.Clamp(entranceRegionMin.y,
0, genSettings.Size - 1));
entranceRegionMax = new Vector2i(Mathf.Clamp(entranceRegionMax.x,
0, genSettings.Size - 1),
Mathf.Clamp(entranceRegionMax.y,
0, genSettings.Size - 1));
foreach (Vector2i entranceSpace in new Vector2i.Iterator(entranceRegionMin,
entranceRegionMax + 1))
{
if (entrance.DistanceSqr(entranceSpace) < entranceRadiusSqr)
{
entranceSpaces.Add(entranceSpace);
theMap.Tiles[entranceSpace] = GameLogic.TileTypes.Empty;
}
}
}
//If we weren't given any units to place, generate some.
if (unitsToKeep == null)
{
unitsToKeep = new UlongSet();
//Find or create the PlayerGroup.
var playerGroup = GameLogic.Groups.PlayerGroup.Get(theMap);
//Generate a certain number of player units.
PRNG prng = new PRNG(seed);
for (int i = 0; i < NStartingChars; ++i)
{
//PlayerChar's have 3 stats to randomize.
//Distribute "points" among them randomly.
//Prefer energy, then food, then strength.
float totalPoints = StartingStatAbilities;
float p = prng.NextFloat() * Math.Min(1.0f, totalPoints);
float energy = p;
totalPoints -= p;
p = prng.NextFloat() * Math.Min(1.0f, totalPoints);
float food = p;
totalPoints -= p;
float strength = totalPoints;
energy = Mathf.Lerp(PlayerConsts.MinStart_Energy,
PlayerConsts.MaxStart_Energy,
energy);
food = Mathf.Lerp(PlayerConsts.MinStart_Food,
PlayerConsts.MaxStart_Food,
food);
strength = Mathf.Lerp(PlayerConsts.MinStart_Strength,
PlayerConsts.MaxStart_Strength,
strength);
var gender = (i % 2 == 0) ?
GameLogic.Units.Player_Char.Personality.Genders.Male :
GameLogic.Units.Player_Char.Personality.Genders.Female;
PlayerChar chr = new PlayerChar(
theMap, playerGroup.ID, food, energy, strength, 1.0f,
GameLogic.Units.Player_Char.Personality.GenerateName(gender, prng.NextInt()),
gender);
theMap.AddUnit(chr);
unitsToKeep.Add(chr.ID);
}
}
//Position the units.
UnityEngine.Assertions.Assert.IsTrue(entranceSpaces.Count > 0);
int unitsPerSpace = unitsToKeep.Count / entranceSpaces.Count;
int unitI = 0,
posI = 0;
foreach (Unit unit in unitsToKeep.Select(id => theMap.GetUnit(id)))
{
unit.Pos.Value = entranceSpaces[posI];
unitI += 1;
if (unitI >= unitsPerSpace)
{
unitI = 0;
posI = (posI + 1) % entranceSpaces.Count;
}
}
return(entranceSpaces);
}
