Merge pull request #75 from grahamboree/demo_project_improvements

Replaced FileList class with std::vector<std::string>

RecastDemo/Include/ChunkyTriMesh.h

@@ -21,8 +21,10 @@
 
 struct rcChunkyTriMeshNode
 {
-	float bmin[2], bmax[2];
-	int i, n;
+	float bmin[2];
+	float bmax[2];
+	int i;
+	int n;
 };
 
 struct rcChunkyTriMesh

RecastDemo/Include/Filelist.h

@@ -19,17 +19,9 @@
 #ifndef FILELIST_H
 #define FILELIST_H
 
-struct FileList
-{
-	static const int MAX_FILES = 256;
-	
-	FileList();
-	~FileList();
-	
-	char* files[MAX_FILES];
-	int size;
-};
+#include <vector>
+#include <string>
 
-void scanDirectory(const char* path, const char* ext, FileList& list);
+void scanDirectory(std::string path, std::string ext, std::vector<std::string>& fileList);
 
 #endif // FILELIST_H

RecastDemo/Include/SlideShow.h

@@ -20,10 +20,12 @@
 #define SLIDESHOW_H
 
 #include "Filelist.h"
+#include <vector>
+#include <string>
 
 class SlideShow
 {
-	FileList m_files;
+	std::vector<std::string> m_files;
 	char m_path[256];
 
 	int m_width;

RecastDemo/Source/Filelist.cpp

@@ -17,84 +17,57 @@
 //
 
 #include "Filelist.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+
+#include <algorithm>
 #ifdef WIN32
 #	include <io.h>
 #else
 #	include <dirent.h>
+#	include <cstring>
 #endif
 
-static void fileListAdd(FileList& list, const char* path)
-{
-	if (list.size >= FileList::MAX_FILES)
-		return;
-	int n = strlen(path);
-	list.files[list.size] = new char[n+1];
-	strcpy(list.files[list.size], path);
-	list.size++;
-}
+using std::vector;
+using std::string;
 
-static void fileListClear(FileList& list)
+void scanDirectory(string path, string ext, vector<string>& filelist)
 {
-	for (int i = 0; i < list.size; ++i)
-		delete [] list.files[i];
-	list.size = 0;
-}
-
-FileList::FileList() : size(0)
-{
-	memset(files, 0, sizeof(char*)*MAX_FILES);
-}
-
-FileList::~FileList()
-{
-	fileListClear(*this);
-}
-
-static int cmp(const void* a, const void* b)
-{
-	return strcmp(*(const char**)a, *(const char**)b);
-}
-	
-void scanDirectory(const char* path, const char* ext, FileList& list)
-{
-	fileListClear(list);
+	filelist.clear();
 	
 #ifdef WIN32
+	string pathWithExt = path + "/*" + ext;
+	
 	_finddata_t dir;
-	char pathWithExt[260];
-	long fh;
-	strcpy(pathWithExt, path);
-	strcat(pathWithExt, "/*");
-	strcat(pathWithExt, ext);
-	fh = _findfirst(pathWithExt, &dir);
+	long fh = _findfirst(pathWithExt.c_str(), &dir);
 	if (fh == -1L)
+	{
 		return;
+	}
+	
 	do
 	{
-		fileListAdd(list, dir.name);
+		filelist.push_back(dir.name);
 	}
 	while (_findnext(fh, &dir) == 0);
 	_findclose(fh);
 #else
 	dirent* current = 0;
-	DIR* dp = opendir(path);
+	DIR* dp = opendir(path.c_str());
 	if (!dp)
+	{
 		return;
+	}
 	
 	while ((current = readdir(dp)) != 0)
 	{
 		int len = strlen(current->d_name);
-		if (len > 4 && strncmp(current->d_name+len-4, ext, 4) == 0)
+		if (len > 4 && strncmp(current->d_name + len - 4, ext.c_str(), 4) == 0)
 		{
-			fileListAdd(list, current->d_name);
+			filelist.push_back(current->d_name);
 		}
 	}
 	closedir(dp);
 #endif
-
-	if (list.size > 1)
-		qsort(list.files, list.size, sizeof(char*), cmp);
+	
+	// Sort the list of files alphabetically.
+	std::sort(filelist.begin(), filelist.end());
 }

RecastDemo/Source/SlideShow.cpp

@@ -17,6 +17,7 @@
 //
 
 #include "SlideShow.h"
+
 #include <string.h>
 #include <stdio.h>
 #include "SDL_opengl.h"
@@ -98,7 +99,7 @@ void SlideShow::prevSlide()
 
 void SlideShow::setSlide(int n)
 {
-	const int maxIdx = m_files.size ? m_files.size-1 : 0;
+	const int maxIdx = m_files.size() ? m_files.size() - 1 : 0;
 	m_nextSlide = n;
 	if (m_nextSlide < 0) m_nextSlide = 0;
 	if (m_nextSlide > maxIdx) m_nextSlide = maxIdx; 
@@ -120,11 +121,11 @@ void SlideShow::updateAndDraw(float dt, const float w, const float h)
 	if (m_curSlide != m_nextSlide && m_slideAlpha < 0.01f)
 	{
 		m_curSlide = m_nextSlide;
-		if (m_curSlide >= 0 && m_curSlide < m_files.size)
+		if (m_curSlide >= 0 && static_cast<std::size_t>(m_curSlide) < m_files.size())
 		{
 			char path[256];
 			strcpy(path, m_path);
-			strcat(path, m_files.files[m_curSlide]);
+			strcat(path, m_files[m_curSlide].c_str());
 			loadImage(path);
 		}
 	}

RecastDemo/Source/main.cpp

@@ -28,6 +28,9 @@
 #	include <GL/glu.h>
 #endif
 
+#include <vector>
+#include <string>
+
 #include "imgui.h"
 #include "imguiRenderGL.h"
 
@@ -47,6 +50,9 @@
 #	define putenv _putenv
 #endif
 
+using std::string;
+using std::vector;
+
 struct SampleItem
 {
 	Sample* (*create)();
@@ -163,7 +169,7 @@ int main(int /*argc*/, char** /*argv*/)
 	
 	char sampleName[64] = "Choose Sample..."; 
 	
-	FileList files;
+	vector<string> files;
 	char meshName[128] = "Choose Mesh...";
 	
 	float markerPosition[3] = {0, 0, 0};
@@ -714,16 +720,20 @@ int main(int /*argc*/, char** /*argv*/)
 			if (imguiBeginScrollArea("Choose Level", width - 10 - 250 - 10 - 200, height - 10 - 450, 200, 450, &levelScroll))
 				mouseOverMenu = true;
 			
-			int levelToLoad = -1;
-			for (int i = 0; i < files.size; ++i)
+			vector<string>::const_iterator fileIter = files.begin();
+			vector<string>::const_iterator filesEnd = files.end();
+			vector<string>::const_iterator levelToLoad = filesEnd;
+			for (; fileIter != filesEnd; ++fileIter)
 			{
-				if (imguiItem(files.files[i]))
-					levelToLoad = i;
+				if (imguiItem(fileIter->c_str()))
+				{
+					levelToLoad = fileIter;
+				}
 			}
 			
-			if (levelToLoad != -1)
+			if (levelToLoad != filesEnd)
 			{
-				strncpy(meshName, files.files[levelToLoad], sizeof(meshName));
+				strncpy(meshName, levelToLoad->c_str(), sizeof(meshName));
 				meshName[sizeof(meshName)-1] = '\0';
 				showLevels = false;
 				
@@ -792,18 +802,22 @@ int main(int /*argc*/, char** /*argv*/)
 			if (imguiBeginScrollArea("Choose Test To Run", width-10-250-10-200, height-10-450, 200, 450, &testScroll))
 				mouseOverMenu = true;
 
-			int testToLoad = -1;
-			for (int i = 0; i < files.size; ++i)
+			vector<string>::const_iterator fileIter = files.begin();
+			vector<string>::const_iterator filesEnd = files.end();
+			vector<string>::const_iterator testToLoad = filesEnd;
+			for (; fileIter != filesEnd; ++fileIter)
 			{
-				if (imguiItem(files.files[i]))
-					testToLoad = i;
+				if (imguiItem(fileIter->c_str()))
+				{
+					testToLoad = fileIter;
+				}
 			}
 			
-			if (testToLoad != -1)
+			if (testToLoad != filesEnd)
 			{
 				char path[256];
 				strcpy(path, "TestCases/");
-				strcat(path, files.files[testToLoad]);
+				strcat(path, testToLoad->c_str());
 				test = new TestCase;
 				if (test)
 				{