fixed issue #1 moved to v1.0

1. Added file filter so only .maz files are displayed
2. Fixed problem on linux where selection numbers were relative to root
as opposed to local directory

Author: zeroDecoder

mmSim.cpp

@@ -1,19 +1,17 @@
 //============================================================================
 // Name        : mmSim.cpp
 // Author      : Elis Pogace
-// Version     : 0.1
+// Version     : 1.0
 // Created on  : Jun 11, 2014
 // Description : Micro mouse simulation software for SFHS robotics students
 //============================================================================
 
-
 #include"mazeBase.h"
 #include"mazeConst.h"
 #include"gui.h"
 #include"studentAi.h"
 #include"time.h"
-
-#define win32 1
+#include"string.h"
 
 #include <dirent.h>
 #include<iostream>
@@ -23,31 +21,15 @@
 
 using namespace cv;
 
-static int filter(const struct dirent* input)
-{
-  const char* ext = string(".maz").c_str();
-  
-  if (input->d_name[0] == '.')
-    return 0;
-  else
-  {
-    size_t j = (strlen(input->d_name)-4);
-    for (int i = 0; j < (strlen(input->d_name)); i++, j++)
-    {
-      if (ext[i] != (input->d_name[j]))
-	return 0;
-    }
-    return 1;
-  }
-}
 
 int main()
 {
+
 	int userInput;
 
 	struct baseMapNode start[MAZE_WIDTH][MAZE_HEIGHT];
 	struct mouseData mouse;
-	FILE *mazeFile;
+	FILE *mazeFile = NULL;
 
 	//new maze construction
 	newMazeArea(start, MAZE_WIDTH, MAZE_HEIGHT);
@@ -103,78 +85,48 @@ int main()
 		}
 		else if(userInput == 'l')
 		{
-#ifdef win32
 			DIR *local = opendir(".");
 			struct dirent *dircontents = readdir(local);
 			int selection;
+			int fileNum =0;
+			vector<std::string> fileNames;
 			std::ostringstream buff ("");
 
+			fileNames.clear();
 			do{
-				buff << telldir(local) << ": " << dircontents->d_name; //setup output string
-				cvPrint(&guiText,buff.str());
-				cout << buff.str() <<endl;
-				buff.str("");//clear string buffer for next loop
-				buff.clear();
+				if(strstr(dircontents->d_name, ".maz")) //check to see if it is a maze file
+				{
+					//print selection number and filename
+					buff << fileNum+1 << ": " << dircontents->d_name;
+					fileNames.push_back(dircontents->d_name);
+					cvPrint(&guiText,buff.str().c_str());
+					fileNum++;
+
+					//clear string buffer for next loop
+					buff.str("");
+					buff.clear();
+				}
 				dircontents = readdir(local);
 			}while(dircontents != NULL);
 
 			do {
 				cout << endl << "Select file to load: " << endl;
-				selection = atoi(cvIn(&guiText).c_str());
-				rewinddir(local);
-				seekdir(local, selection - 1);
-				dircontents = readdir(local);
+				selection = atoi(cvIn(&guiText).c_str())-1;
+				if(selection >= 0 && selection < fileNum) //check if user input is within range
+					mazeFile = fopen(fileNames.at(selection).c_str(), "r");
+				else
+					mazeFile = NULL;
 
 				if(!cvGetWindowHandle(DISPLAY_WINDOW_NAME)) break; //if the user closed the window break
-			} while (dircontents == NULL || dircontents->d_type != 0);
+			} while (mazeFile == NULL);
 			cvPrint(&guiText, "");
-			mazeFile = fopen(dircontents->d_name, "r");
-			if(mazeFile == NULL)
-			{
-				exit(101);
-			}
+
 			readMazeFromFile(mazeFile, start);
+
 			cout << "Maze loaded" << endl;
 
 			fclose(mazeFile);
 			redrawMaze(&image, start);
-#else
-		  struct dirent **dircontents;
-		  string choices[20];
-		  int dirnum, selection;
-		  
-		  cout << endl << "Select file to load: " << endl;
-		  
-		  dirnum = scandir("./", &dircontents, filter, alphasort);
-		  if (dirnum >= 0)
-		  {
-		    for (int i = 0; i < dirnum; i++)
-		    {
-		      choices[i].assign(dircontents[i]->d_name);
-		      cout << i << ") " << choices[i] << endl;
-		    }
-		  }
-
-		  cout << endl;
-		  
-		  //load file
-		  cin >> selection;
-		  
-		  if (selection <= dirnum && selection <= 20)
-		  {
-		    mazeFile = fopen(choices[selection].c_str(), "r");
-		    if(mazeFile != NULL)
-		    {
-		      readMazeFromFile(mazeFile, start);
-		      cout << "Maze loaded" << endl;
-		    }
-		    fclose(mazeFile);
-		    redrawMaze(&image, start);
-		  }
-		  
-		  else
-		    cout << "Invalid selection, try another action" << endl;
-#endif
 		}
 
 		else if(userInput == 'r')