/// <summary>
/// New monsters move in from the edge of the map.
/// </summary>
/// <param name="hex"></param>
public void ResolveOutsideSingleHexMigration(HexData hex)
{
// only for edge chances
int numEdges = _worldMap.NumberOutsideEdges(hex);
if (numEdges <= 0)
{
return;
}
// "5% chance per edge"
int chance = numEdges * 5;
int roll = _dice.Roll(1, 100);
if (roll > chance)
{
return;
}
// Are they invaders, or settlers?
var invaders = new Civilization();
invaders.InitializeAsRandomCiv(hex.Tier);
// Depends on where they land:
int subHexLoc = _dice.Roll(1, HexData.SUB_HEXES);
var results = ResolveInvasionConflicts(hex, invaders, subHexLoc);
if (results is null)
{
// no battle. settle in unclaimed land.
var lair = new Lair();
lair.InitializeAsSettlerLair(invaders, subHexLoc, hex);
lair.Treasure = 1;
hex.LairList.Add(lair);
return;
}
if (
(results.AttackerState
== Battle.CombatantState.COMBATANT_STATE_ELIMINATED) ||
(results.AttackerState
== Battle.CombatantState.COMBATANT_STATE_ROUTED)
)
{
// invaders have been dealt with.
return;
}
// else the invaders win, and have been moved into their new lair.
}
private void _doMigration(Lair lair, HexData hex)
{
if (lair.IsRuins())
{
return;
}
string record = "The " + lair.HomeCiv.GetPluralName()
+ " are migrating to a new home.";
lair.HomeCiv.History.addRecord(record);
HexData targetHex;
do
{
int migrationDirection = _dice.Roll(1, 6);
var neighborLocation =
hex.FindNeighborByIndex(migrationDirection);
targetHex =
_worldMap.GetHexByCoordinates(neighborLocation);
} while (targetHex is null);
int subHexIndex = _dice.Roll(1, HexData.SUB_HEXES);
var existingLair = targetHex.GetLairAtLocation(subHexIndex);
if (existingLair is null)
{
// Free real estate!
var newLair = new Lair();
newLair.InitializeAsSettlerLair(lair.HomeCiv, subHexIndex,
targetHex);
targetHex.LairList.Add(newLair);
lair.ForceAbandon();
// move the treasure
newLair.Treasure = lair.Treasure;
lair.Treasure = 0;
return;
}
// Going to have to fight for the space.
var battle = new Battle(_worldMap);
battle.ResolveBattle(hex, targetHex, lair, existingLair);
}