/// <summary>
/// Checks to see if the AI has direct line of sight of an object it want s to use as cover
/// </summary>
/// <param name="coverObject"> Object to be checked for cover </param>
/// <returns> True if the AI has direct line of sight </returns>
private bool CheckSightOfCoverObject(Transform coverObject)
{
Vector3 start = GetSightCheckPosition(trans, CoverNormal, CurrCoverType);
Vector3 direction = coverObject.position - start;
direction.Normalize();
float distance = Vector3.Distance(start, coverObject.position);
Ray ray = new Ray(start, direction);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, distance))
{
if (hit.collider.transform.GetInstanceID() == coverObject.GetInstanceID())
{
return(true);
}
else if (hit.collider.gameObject.layer != LayerMask.NameToLayer("Scenery"))
{
RaycastHit rehit;
Vector3 hitPoint = hit.point;
float distanceLeft = distance - Vector3.Distance(hitPoint, start) - 0.05f;
int iterations = 0;
while (MissionInput.RaycastThroughObject(hitPoint, direction, distanceLeft, out rehit))
{
if (hit.collider.transform.GetInstanceID() == coverObject.GetInstanceID())
{
return(true);
}
else if (hit.collider.gameObject.layer != LayerMask.NameToLayer("Scenery"))
{
hitPoint = rehit.point;
distanceLeft = distance - Vector3.Distance(hitPoint, start) - 0.05f;
iterations++;
if (iterations > 50)
{
break;
}
continue;
}
else
{
return(false);
}
}
return(false);
}
else
{
return(false);
}
}
return(false);
}
public void StartMission_OutOfBoundariesEast_Exception()
{
// Arrange
var missionController = this.CreateMissionController();
var missionInput = new MissionInput
{
Input = "5 5" + Environment.NewLine +
"5 0 E" + Environment.NewLine +
"M" + Environment.NewLine
};
// Act
missionController.StartMission(missionInput);
// Assert - Exception
}
public MissionResult StartMission(MissionInput missionInput)
{
var inputLines = ParseInput(missionInput).ToArray();
var gridSize = inputLines[0];
SetupGrid(gridSize);
var roverInstructions = inputLines.ToList();
roverInstructions.RemoveAt(0);
var output = ProcessRoverInstructions(roverInstructions);
return(new MissionResult {
MissionIsSuccess = true, RoversOutput = output
});
}
/// <summary>
/// Perform validation on the input string, and returns the input as lines of input
/// </summary>
/// <param name="missionInput"></param>
/// <returns></returns>
private static IEnumerable <string> ParseInput(MissionInput missionInput)
{
if (string.IsNullOrEmpty(missionInput.Input.Trim()))
{
throw new MissionInputException("Empty Input String");
}
var lines = missionInput.Input.Split(new[] { Environment.NewLine },
StringSplitOptions.RemoveEmptyEntries);
if (lines.Length == 0 || lines.Length % 2 != 1)
{
throw new MissionInputException("Wrong Format Input String");
}
// todo: validation on
return(lines);
}
public void StartMission_HappyPath()
{
// Arrange
var missionController = this.CreateMissionController();
var missionInput = new MissionInput
{
Input = "5 5" + Environment.NewLine +
"1 2 N" + Environment.NewLine +
"LMLMLMLMM" + Environment.NewLine +
"3 3 E" + Environment.NewLine +
"MMRMMRMRRM"
};
// Act
var result = missionController.StartMission(missionInput);
// Assert
Assert.IsTrue(result.RoversOutput.ContainsValue("1 3 N") &&
result.RoversOutput.ContainsValue("5 1 E"));
}
/// <summary>
/// Checks whether there is a line of sight between this AI and their target
/// </summary>
/// <param name="target"> The target of the line of sight check </param>
/// <param name="normal"> The normal of the cover of this AI </param>
/// <returns> True if there is line of sight </returns>
protected bool CheckLineOfSight(AbstractCombatPerson target, Vector3 normal)
{
Vector3 start = GetSightCheckPosition(trans, normal, CurrCoverType);
Vector3 end = GetSightCheckPosition(target.Trans, target.CoverNormal, target.CurrCoverType);
Vector3 direction = end - start;
direction.Normalize();
float distance = Vector3.Distance(start, end);
Ray ray = new Ray(start, direction);
RaycastHit hit;
if (Physics.Raycast(ray, out hit, distance))
{
if (hit.collider.CompareTag(target.tag))
{
return(true);
}
else if (hit.collider.CompareTag(tag))
{
RaycastHit rehit;
Vector3 hitPoint = hit.point;
float distanceLeft = distance - Vector3.Distance(hitPoint, start) - 0.05f;
int iterations = 0;
while (MissionInput.RaycastThroughObject(hitPoint, direction, distanceLeft, out rehit))
{
if (hit.collider.CompareTag(target.tag))
{
return(true);
}
else if (hit.collider.CompareTag(tag))
{
hitPoint = rehit.point;
distanceLeft = distance - Vector3.Distance(hitPoint, start) - 0.05f;
iterations++;
if (iterations > 50)
{
break;
}
continue;
}
else
{
return(false);
}
}
return(true);
}
else
{
return(false);
}
}
else
{
return(true);
}
}
