/*
* Author: AG.
* Function Input: Start point and direction and input commands.
* Function Output: Dictionary of the final point and the path points.
*/
public static Dictionary <string, List <PointDir> > GetFinalPositionAndPath(PointDir StartPoint, string Command)
{
Dictionary <string, List <PointDir> > ResultDic = new Dictionary <string, List <PointDir> >();
List <PointDir> FinalPosition = new List <PointDir>();
List <PointDir> PathPoints = new List <PointDir>();
PointDir.PointDirection CurrentPosition = new PointDir.PointDirection();
Point CurrentCoord = new Point();
CurrentPosition = StartPoint.Direction;
CurrentCoord = StartPoint.Position;
for (int i = 0; i < Command.Length; i++)
{
if (Command[i].ToString().ToUpper() == "L")
{
if (CurrentPosition == PointDir.PointDirection.N)
{
CurrentPosition = PointDir.PointDirection.W;
}
else if (CurrentPosition == PointDir.PointDirection.E)
{
CurrentPosition = PointDir.PointDirection.N;
}
else if (CurrentPosition == PointDir.PointDirection.S)
{
CurrentPosition = PointDir.PointDirection.E;
}
else if (CurrentPosition == PointDir.PointDirection.W)
{
CurrentPosition = PointDir.PointDirection.S;
}
}
else if (Command[i].ToString().ToUpper() == "R")
{
if (CurrentPosition == PointDir.PointDirection.N)
{
CurrentPosition = PointDir.PointDirection.E;
}
else if (CurrentPosition == PointDir.PointDirection.E)
{
CurrentPosition = PointDir.PointDirection.S;
}
else if (CurrentPosition == PointDir.PointDirection.S)
{
CurrentPosition = PointDir.PointDirection.W;
}
else if (CurrentPosition == PointDir.PointDirection.W)
{
CurrentPosition = PointDir.PointDirection.N;
}
}
else if (Command[i].ToString().ToUpper() == "M")
{
if (CurrentPosition == PointDir.PointDirection.N)
{
CurrentCoord.Y += 1;
}
else if (CurrentPosition == PointDir.PointDirection.E)
{
CurrentCoord.X += 1;
}
else if (CurrentPosition == PointDir.PointDirection.S)
{
CurrentCoord.Y -= 1;
}
else if (CurrentPosition == PointDir.PointDirection.W)
{
CurrentCoord.X -= 1;
}
PathPoints.Add(new PointDir(CurrentCoord.X, CurrentCoord.Y, CurrentPosition));
}
}
FinalPosition.Add(new PointDir(CurrentCoord.X, CurrentCoord.Y, CurrentPosition));
ResultDic["FinalPosition"] = FinalPosition;
ResultDic["PathPoints"] = PathPoints;
return(ResultDic);
}
static void Main(string[] args)
{
//Intialize variables
Point UpperRightCoord = new Point();
PointDir SrtPoint = new PointDir();
int Count = 1;
bool IsDone = false;
bool AnotherRobot = false;
string Command = string.Empty;
Dictionary <string, string> CheepdogsStartPositions = new Dictionary <string, string>();
Dictionary <string, string> CheepdogsCommands = new Dictionary <string, string>();
string Line = string.Empty;
string[] LineArray;
Console.WriteLine("Please Enter Upper right coordinates followed by sheepdogs position then instructions, press Enter two time when finished!!");
// Get Upper right coordinates
while (true)
{
Line = Console.ReadLine();
//Check if the input input correct
if (PointsManager.CheckInputs(Line, 1, UpperRightCoord))
{
LineArray = Line.Trim().Split(' ');
UpperRightCoord.X = int.Parse(LineArray[0]);
UpperRightCoord.Y = int.Parse(LineArray[1]);
break;
}
else
{
Console.WriteLine("Please enter valid coordinates separated by space character!!");
continue;
}
}
// Get robot initial position
while (true)
{
if (!IsDone)
{
while (true)
{
if (!AnotherRobot)
{
Line = Console.ReadLine();
}
//Check if the input data correct
if (PointsManager.CheckInputs(Line, 2, UpperRightCoord))
{
CheepdogsStartPositions[Count.ToString()] = Line;
break;
}
else
{
Console.WriteLine("Please enter valid coordinates and position separated by space character!!");
continue;
}
}
while (true)
{
// Get the commands
Line = Console.ReadLine();
///check if the input commands correct
if (PointsManager.CheckInputs(Line, 3, UpperRightCoord))
{
Command = Line.Trim().ToUpper();
CheepdogsCommands[Count.ToString()] = Command;
break;
}
else
{
Console.WriteLine("Please enter valid commands!!");
continue;
}
}
Count++;
Line = Console.ReadLine();
if (Line == "")
{
IsDone = true;
}
else
{
AnotherRobot = true;
}
}
else
{
break;
}
}
Console.WriteLine("Results: ");
for (int k = 1; k <= CheepdogsStartPositions.Count; k++)
{
// Intialize variables
string cmd = string.Empty;
bool Done = false;
LineArray = CheepdogsStartPositions[k.ToString()].Trim().Split(' ');
Dictionary <string, List <PointDir> > ResultDic = new Dictionary <string, List <PointDir> >();
// Get the robot's final position and path.
SrtPoint = new PointDir(int.Parse(LineArray[0]),
int.Parse(LineArray[1]),
(PointDir.PointDirection)Enum.Parse(typeof(PointDir.PointDirection),
LineArray[2].ToString().ToUpper()));
cmd = CheepdogsCommands[k.ToString()];
ResultDic = PointsManager.GetFinalPositionAndPath(SrtPoint, cmd);
PointDir CurrentPoint = ResultDic["FinalPosition"][0];
if (CurrentPoint.Position.X > UpperRightCoord.X ||
CurrentPoint.Position.Y > UpperRightCoord.Y ||
CurrentPoint.Position.X < 0 ||
CurrentPoint.Position.Y < 0)
{
Console.WriteLine("Your commands are not valid,robot number: " + k.ToString() + " will get out from the paddock!!");
break;
}
Console.Write(CurrentPoint.Position.X + " ");
Console.Write(CurrentPoint.Position.Y + " ");
Console.Write(CurrentPoint.Direction);
Console.WriteLine("");
//check if the robots paths intersect or not.
foreach (string key in CheepdogsStartPositions.Keys)
{
if (key != k.ToString())
{
Dictionary <string, List <PointDir> > ResultDictwo = new Dictionary <string, List <PointDir> >();
LineArray = CheepdogsStartPositions[key].Trim().Split(' ');
SrtPoint = new PointDir(int.Parse(LineArray[0]),
int.Parse(LineArray[1]),
(PointDir.PointDirection)Enum.Parse(typeof(PointDir.PointDirection),
LineArray[2].ToString().ToUpper()));
cmd = CheepdogsCommands[key];
ResultDictwo = PointsManager.GetFinalPositionAndPath(SrtPoint, cmd);
if (PointsManager.IsIntersect(ResultDic["PathPoints"], ResultDictwo["PathPoints"]))
{
Console.WriteLine("Robot number: " + k.ToString() + " Intersect with Robot number: " + key + "!!");
Done = true;
break;
}
}
}
if (Done)
{
break;
}
}
Console.ReadLine();
}
