private bool Search(HexCell fromCell, HexCell toCell)
{
searchFrontierPhase += 2;
if (searchFrontier == null)
{
searchFrontier = new HexCellPriorityQueue();
}
else
{
searchFrontier.Clear();
}
fromCell.SearchPhase = searchFrontierPhase;
fromCell.Distance = 0;
searchFrontier.Enqueue(fromCell);
while (searchFrontier.Count > 0)
{
var current = searchFrontier.Dequeue();
current.SearchPhase += 1;
if (current == toCell)
{
return(true);
}
for (var d = HexDirection.NE; d <= HexDirection.NW; d++)
{
var neighbor = current.GetNeighbor(d);
if (
neighbor == null ||
neighbor.SearchPhase > searchFrontierPhase
)
{
continue;
}
var distance = current.Distance + 1;
if (neighbor.SearchPhase < searchFrontierPhase)
{
neighbor.SearchPhase = searchFrontierPhase;
neighbor.Distance = distance;
neighbor.PathFrom = current;
neighbor.SearchHeuristic =
neighbor.coordinates.DistanceTo(toCell.coordinates);
searchFrontier.Enqueue(neighbor);
}
else if (distance < neighbor.Distance)
{
var oldPriority = neighbor.SearchPriority;
neighbor.Distance = distance;
neighbor.PathFrom = current;
searchFrontier.Change(neighbor, oldPriority);
}
}
}
return(false);
}
public void GenerateMap(int x, int z)
{
var originalRandomState = Random.state;
if (!useFixedSeed)
{
seed = Random.Range(0, int.MaxValue);
seed ^= (int)DateTime.Now.Ticks;
seed ^= (int)Time.unscaledTime;
seed &= int.MaxValue;
}
Random.InitState(seed);
cellCount = x * z;
grid.CreateMap(x, z);
if (searchFrontier == null)
{
searchFrontier = new HexCellPriorityQueue();
}
for (var i = 0; i < cellCount; i++)
{
grid.GetCell(i).WaterLevel = waterLevel;
}
CreateRegions();
CreateLand();
ErodeLand();
CreateClimate();
CreateRivers();
SetTerrainType();
for (var i = 0; i < cellCount; i++)
{
grid.GetCell(i).SearchPhase = 0;
}
Random.state = originalRandomState;
}
private List <HexCell> GetVisibleCells(HexCell fromCell, int range)
{
var visibleCells = ListPool <HexCell> .Get();
searchFrontierPhase += 2;
if (searchFrontier == null)
{
searchFrontier = new HexCellPriorityQueue();
}
else
{
searchFrontier.Clear();
}
range += fromCell.ViewElevation;
fromCell.SearchPhase = searchFrontierPhase;
fromCell.Distance = 0;
searchFrontier.Enqueue(fromCell);
var fromCoordinates = fromCell.coordinates;
while (searchFrontier.Count > 0)
{
var current = searchFrontier.Dequeue();
current.SearchPhase += 1;
visibleCells.Add(current);
for (var d = HexDirection.NE; d <= HexDirection.NW; d++)
{
var neighbor = current.GetNeighbor(d);
if (
neighbor == null ||
neighbor.SearchPhase > searchFrontierPhase ||
!neighbor.Explorable
)
{
continue;
}
var distance = current.Distance + 1;
if (distance + neighbor.ViewElevation > range ||
distance > fromCoordinates.DistanceTo(neighbor.coordinates)
)
{
continue;
}
if (neighbor.SearchPhase < searchFrontierPhase)
{
neighbor.SearchPhase = searchFrontierPhase;
neighbor.Distance = distance;
neighbor.SearchHeuristic = 0;
searchFrontier.Enqueue(neighbor);
}
else if (distance < neighbor.Distance)
{
var oldPriority = neighbor.SearchPriority;
neighbor.Distance = distance;
searchFrontier.Change(neighbor, oldPriority);
}
}
}
return(visibleCells);
}
private bool Search(HexCell fromCell, HexCell toCell, HexUnit unit)
{
var speed = unit.Speed;
searchFrontierPhase += 2;
if (searchFrontier == null)
{
searchFrontier = new HexCellPriorityQueue();
}
else
{
searchFrontier.Clear();
}
fromCell.SearchPhase = searchFrontierPhase;
fromCell.Distance = 0;
searchFrontier.Enqueue(fromCell);
while (searchFrontier.Count > 0)
{
var current = searchFrontier.Dequeue();
current.SearchPhase += 1;
if (current == toCell)
{
return(true);
}
var currentTurn = (current.Distance - 1) / speed;
for (var d = HexDirection.NE; d <= HexDirection.NW; d++)
{
var neighbor = current.GetNeighbor(d);
if (
neighbor == null ||
neighbor.SearchPhase > searchFrontierPhase
)
{
continue;
}
if (!unit.IsValidDestination(neighbor))
{
continue;
}
var moveCost = unit.GetMoveCost(current, neighbor, d);
if (moveCost < 0)
{
continue;
}
var distance = current.Distance + moveCost;
var turn = (distance - 1) / speed;
if (turn > currentTurn)
{
distance = turn * speed + moveCost;
}
if (neighbor.SearchPhase < searchFrontierPhase)
{
neighbor.SearchPhase = searchFrontierPhase;
neighbor.Distance = distance;
neighbor.PathFrom = current;
neighbor.SearchHeuristic =
neighbor.coordinates.DistanceTo(toCell.coordinates);
searchFrontier.Enqueue(neighbor);
}
else if (distance < neighbor.Distance)
{
var oldPriority = neighbor.SearchPriority;
neighbor.Distance = distance;
neighbor.PathFrom = current;
searchFrontier.Change(neighbor, oldPriority);
}
}
}
return(false);
}
public List <HexCell> SearchInRange(HexCell fromCell, int range, bool includeStart)
{
searchFrontierPhase += 2;
List <HexCell> retCells = new List <HexCell>();
if (searchFrontier == null)
{
searchFrontier = new HexCellPriorityQueue();
}
else
{
searchFrontier.Clear();
}
fromCell.SearchPhase = searchFrontierPhase;
fromCell.Distance = 0;
searchFrontier.Enqueue(fromCell);
while (searchFrontier.Count > 0)
{
var current = searchFrontier.Dequeue();
current.SearchPhase += 1;
retCells.Add(current);
for (var d = HexDirection.NE; d <= HexDirection.NW; d++)
{
var neighbor = current.GetNeighbor(d);
if (
neighbor == null ||
neighbor.SearchPhase > searchFrontierPhase
)
{
continue;
}
var distance = current.Distance + 1;
if (distance > range)
{
continue;
}
if (neighbor.SearchPhase < searchFrontierPhase)
{
neighbor.SearchPhase = searchFrontierPhase;
neighbor.Distance = distance;
neighbor.SearchHeuristic = 0;
searchFrontier.Enqueue(neighbor);
}
else if (distance < neighbor.Distance)
{
var oldPriority = neighbor.SearchPriority;
neighbor.Distance = distance;
neighbor.PathFrom = current;
searchFrontier.Change(neighbor, oldPriority);
}
}
}
if (!includeStart)
{
retCells.Remove(fromCell);
}
return(retCells);
}
