first commit

CS4451/proj5/FileReader.cpp

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+#include "FileReader.h"
+#include "Renderer.h"
+
+#include <iostream>
+#include <fstream>
+
+//Initialize the FileReader instance
+FileReader FileReader::m_instance;
+
+void FileReader::readFile(char* fileName) {
+    char input[81], *inputPtr;  //temp string space
+    std::fstream fs;            //File Stream
+    int numTris, numPts;        //Number of objects
+
+    //Open file
+    fs.open(fileName, std::fstream::in);
+
+    if (!fs.is_open()) {
+        std::cout << "The file failed to open.\n";
+        exit(-1);
+    }
+
+    //Get the # of vertices and # of triangles
+    fs.getline(input,81);
+    
+    //Number of Triangles
+    numTris = strtol(input,&inputPtr,0);
+    //Renderer::getInstance()->triangles->reserve(numTris);
+
+    //Number of points
+    numPts = strtol(inputPtr,NULL,0);
+    //Renderer::getInstance()->points->reserve(numPts);
+
+    //skip over the first newline
+    fs.getline(input,81);
+
+    //Read all triangles
+    for (int i = 0; i < numTris; i++) {
+        readTriangle(&fs, i);
+    }
+
+    //skip over the second newline
+    fs.getline(input,81);
+
+    //Read all Points
+    for (int i = 0; i < numPts; i++) {
+        readPoint(&fs, i);
+    }
+
+}
+
+void FileReader::readTriangle(std::fstream *fs, int index) {
+    char input[81], *inputPtr;  //temp string space
+    Triangle t;
+
+    //Read next line
+    fs->getline(input,81);
+
+    t.a1 = strtol(input,&inputPtr,0);
+    t.a2 = strtol(inputPtr,&inputPtr,0);
+    t.a3 = strtol(inputPtr,NULL,0);
+
+    t.normal.i = t.normal.j = t.normal.k = 0;
+
+    Renderer::getInstance()->triangles->push_back(t);
+}
+
+void FileReader::readPoint(std::fstream *fs, int index) {
+    char input[81], *inputPtr;  //temp string space
+    Point p;
+
+    //Read next line
+    fs->getline(input,81);
+
+    p.x = (float)strtod(input,&inputPtr);
+    p.y = (float)strtod(inputPtr,&inputPtr);
+    p.z = (float)strtod(inputPtr,NULL);
+
+    Renderer::getInstance()->points->push_back(p);
+}
+
+
+
+