public bool IsValidAttackTarget(HexCell attackingUnit, HexCell target, int playerId)
{
if (!(attackingUnit is UnitCell unit))
{
return(false);
}
if (attackingUnit == null || attackingUnit.PlayerId != playerId)
{
return(false);
}
if (target == null || target.PlayerId == playerId)
{
return(false);
}
return(unit.GetStats().Range >= HexCoordinates.Distance(attackingUnit.Coordinates, target.Coordinates));
}
public void UpdateAttackCursor(UnitCell unit, HexCoordinates coords)
{
var target = cells.GetCellAtPosition(coords);
if (target == null)
{
ui.SetGameCursor(HexCursor.Invalid);
}
else if (cells.IsValidAttackTarget(unit, target, unit.PlayerId))
{
ui.SetGameCursor(HexCursor.Attack);
}
else
{
ui.SetGameCursor(HexCursor.Invalid);
}
}
public void CmdMoveCell(Int16 playerID, Int16 cellID, Int16 targetX, Int16 targetZ)
{
if (!game.IsCurrentPlayer(playerID))
{
return;
}
var cell = game.Cells.GetCell(cellID);
var target = new HexCoordinates(targetX, targetZ);
var path = game.Cells.GetPathWithValidityCheck(cell, target, ID);
if (path != null)
{
game.MoveCell(cell, target);
}
}
public void UpdateBuildCursor(HexCoordinates coords)
{
if (projectedCell == null)
{
return;
}
projectedCell.SetCoordinates(coords);
if (IsProjectedCellInPlacementGrid())
{
projectedCell.ShowAsValid();
}
else
{
projectedCell.ShowAsInvalid();
}
}
private void HandleBoardClick(HexCoordinates coords)
{
Clear();
var cell = game.Cells.GetCellAtPosition(coords);
if (cell != null)
{
if (cell is UnitCell u && u.PlayerId == player.ID)
{
SetOwnUnitSelected(u);
}
selectedCell = cell;
cell.SetSelected();
game.UI.ShowCellInfo(cell);
}
}
public void Update()
{
input.HandleInput();
var boardPosition = input.GetMousePositionOnBoard();
var coords = HexCoordinates.FromPosition(boardPosition);
if (coords.Equals(currentCoords))
{
return;
}
currentCoords = coords;
if (isPlayerTurn)
{
UpdateCursor(coords);
}
}
private static List <Vector3> ConstructPath(PathCell target, int maxDistance)
{
var path = new Stack <Vector3>();
var cell = target;
while (cell != null)
{
if (path.Count - 1 >= maxDistance)
{
return(null);
}
path.Push(HexCoordinates.ToPosition(cell.X, cell.Z));
cell = cell.PreviousCell;
}
return(path.ToList());
}
private bool MoveIfValid(UnitCell unit, HexCoordinates coords)
{
if (unit.HasMoved)
{
return(false);
}
var path = game.Cells.GetPathWithValidityCheck(unit, coords, player.ID);
var isValidPath = path != null;
if (isValidPath)
{
state = States.None;
indicator.Clear();
player.CmdMoveCell(
(Int16)player.ID, (Int16)unit.ID,
(Int16)coords.X, (Int16)coords.Z);
}
return(isValidPath);
}
public List <Vector3> FindPath(HexCoordinates origin, HexCoordinates target, int maxDistance)
{
if (cells.IsPieceInCell(target))
{
return(null);
}
var distance = HexCoordinates.Distance(origin, target);
var pathableCells = GetCellsWithinDistance(origin, distance);
foreach (var cell in pathableCells)
{
if (cell.X == target.X && cell.Z == target.Z)
{
return(ConstructPath(cell, maxDistance));
}
}
return(null);
}
private void UpdateCursor(HexCoordinates coords)
{
switch (state)
{
case States.Building:
indicator.UpdateBuildCursor(coords);
break;
case States.OwnUnitSelected:
indicator.UpdateUnitCursor(unit, coords);
break;
case States.Moving:
indicator.UpdateMoveCursor(unit, coords);
break;
case States.Attacking:
indicator.UpdateAttackCursor(unit, coords);
break;
}
}
public void UpdateUnitCursor(UnitCell unit, HexCoordinates coords)
{
if (unit == null)
{
return;
}
if (!unit.HasAttacked)
{
var target = cells.GetCellAtPosition(coords);
if (target != null)
{
cells.HidePath();
if (target.PlayerId == unit.PlayerId)
{
ui.SetGameCursor(HexCursor.Default);
}
else if (cells.IsValidAttackTarget(unit, target, unit.PlayerId))
{
ui.SetGameCursor(HexCursor.Attack);
}
else
{
ui.SetGameCursor(HexCursor.Invalid);
}
return;
}
}
if (unit.HasMoved)
{
ui.SetGameCursor(HexCursor.Default);
}
else
{
UpdateMoveCursor(unit, coords);
}
}
public static bool IsValidPlacementDistance(int radius, HexCoordinates cellCoords, HexCoordinates origin)
{
var distance = (Mathf.Abs(cellCoords.X - origin.X)
+ Mathf.Abs(cellCoords.Y - origin.Y)
+ Mathf.Abs(cellCoords.Z - origin.Z)) / 2;
return(distance <= radius);
}
public bool IsPieceInCell(HexCoordinates coordinates)
{
return(AllCells.Any(c => c.IsPlaced && c.Coordinates.Equals(coordinates)));
}
public HexCell GetCellAtPosition(HexCoordinates coordinates)
{
return(AllCells.FirstOrDefault(c => c.IsPlaced && c.Coordinates.Equals(coordinates)));
}
public List <Vector3> GetPath(UnitCell unit, HexCoordinates targetCoords)
{
return(pathfinder.FindPath(unit.Coordinates, targetCoords, unit.GetStats().Speed));
}
public void MoveCell(HexCell cell, HexCoordinates to)
{
Grid.RpcMoveCell((Int16)cell.ID, (Int16)to.X, (Int16)to.Z);
}
public virtual void MoveTo(HexCoordinates coords)
{
SetCoordinates(coords);
}
public static Vector3 ToPosition(HexCoordinates coordinates)
{
return(ToPosition(coordinates.X, coordinates.Z));
}
public static int Distance(HexCoordinates c1, HexCoordinates c2)
{
return((Mathf.Abs(c1.X - c2.X)
+ Mathf.Abs(c1.Y - c2.Y)
+ Mathf.Abs(c1.Z - c2.Z)) / 2);
}
public void SetCoordinates(HexCoordinates coords)
{
Coordinates = coords;
transform.position = HexCoordinates.ToPosition(coords);
}