/// <summary>
/// Casts a ray looking for direction signals. If any are found, returns its state.
/// </summary>
float LookForDirection()
{
float returnValue = 0f;
RaycastHit hit;
Vector3 fromPosition = transform.position + transform.forward * 1.1f;
Vector3 direction = transform.TransformDirection(new Vector3(0, 0, 1).normalized);
if (Physics.Raycast(fromPosition, direction, out hit, directions_range, ~carsLayer))
{
if (hit.collider.tag.Equals("IntersectionTrigger"))
{
// Direction sign found!
returnValue =
hit.collider.gameObject.
GetComponentInParent <DirectionSignalController>().GetDirectionAsFloat();
// Write down the expected outcome:
isDirectionPending = true;
// Left is returnValue 0.33, more than that is straight or right
if (returnValue < 0.4)
{
expectedDirection = DirectionTaken.left;
}
else
{
expectedDirection = DirectionTaken.rightOrStraight;
}
}
}
return(returnValue);
}
internal Coordinates GetAdjecentCellCoordinates(Coordinates c, DirectionTaken d)
{
switch (d)
{
case DirectionTaken.Up: if (IsInBounds(c.X, c.Y - 1))
{
return new Coordinates {
X = c.X, Y = c.Y - 1, Val = GetVal(c.X, c.Y - 1)
}
}
; break;
case DirectionTaken.Down: if (IsInBounds(c.X, c.Y + 1))
{
return new Coordinates {
X = c.X, Y = c.Y + 1, Val = GetVal(c.X, c.Y + 1)
}
}
; break;
case DirectionTaken.Left: if (IsInBounds(c.X - 1, c.Y))
{
return new Coordinates {
X = c.X - 1, Y = c.Y, Val = GetVal(c.X - 1, c.Y)
}
}
; break;
case DirectionTaken.Right: if (IsInBounds(c.X + 1, c.Y))
{
return new Coordinates {
X = c.X + 1, Y = c.Y, Val = GetVal(c.X + 1, c.Y)
}
}
; break;
}
return(null);
}
internal DirectionTaken GetOppositeDirection(DirectionTaken dt)
{
if (dt == DirectionTaken.Left)
{
return(DirectionTaken.Right);
}
else if (dt == DirectionTaken.Right)
{
return(DirectionTaken.Left);
}
else if (dt == DirectionTaken.Up)
{
return(DirectionTaken.Down);
}
else if (dt == DirectionTaken.Down)
{
return(DirectionTaken.Up);
}
else
{
return(DirectionTaken.Random);
}
}
internal List <Coordinates> GetAdjacentTargets(Coordinates c, Orientation o, DirectionTaken dt)
{
List <Coordinates> tempCoords = new List <Coordinates>();
Coordinates t = null;
if (dt != DirectionTaken.Random)
{
t = GetAdjecentCellCoordinates(c, dt);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
}
else
{
if (o == Orientation.Random)
{
t = GetAdjecentCellCoordinates(c, DirectionTaken.Up);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
t = GetAdjecentCellCoordinates(c, DirectionTaken.Down);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
t = GetAdjecentCellCoordinates(c, DirectionTaken.Left);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
t = GetAdjecentCellCoordinates(c, DirectionTaken.Right);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
}
else if (o == Orientation.Vertical)
{
t = GetAdjecentCellCoordinates(c, DirectionTaken.Up);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
t = GetAdjecentCellCoordinates(c, DirectionTaken.Down);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
}
else if (o == Orientation.Horizontal)
{
t = GetAdjecentCellCoordinates(c, DirectionTaken.Left);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
t = GetAdjecentCellCoordinates(c, DirectionTaken.Right);
if (t != null && !Board.Grid[t.X, t.Y].IsShot)
{
tempCoords.Add(t);
}
}
}
return(tempCoords);
}
