Input and file read

src/life.cpp

@@ -2,16 +2,51 @@
 // Also remove these comments here and add your own.
 // TODO: remove this comment header
 
-#include <iostream>
 #include "grid.h"
 #include "lifeutil.h"
+#include <fstream>
+#include <iostream>
 #include <string>
 
+void printWelcome() {
+    std::cout << "Welcome to the TDDD86 Game of Life,\n"
+              << "a simulation of the lifecycle of a bacteria colony.\n"
+              << "Cells (X) live and die by the following rules:\n"
+              << "  - A cell with 1 or fewer neighbours dies.\n"
+              << "  - Locations with 2 neighbours remain stable.\n"
+              << "  - Locations with 3 neighbours will create life.\n"
+              << "  - A cell with 4 or more neighbours dies." << std::endl;
+}
+
+std::string input(const char *message) {
+    if (message != nullptr) {
+        std::cout << message;
+        std::flush(std::cout);
+    }
+    std::string ret;
+    std::getline(std::cin, ret);
+
+    return ret;
+}
+
+std::string readFile(const char *filePath) {
+    std::ifstream file(filePath, std::ios::binary);
+    if (!file.is_open())
+        throw std::runtime_error("File couldn't be found");
+
+    std::string content;
+    const int BUF_LENGTH = 1024;
+    char buf[BUF_LENGTH];
+    while (file.read(buf, BUF_LENGTH))
+        content.append(buf, file.gcount());
+    content.append(buf, file.gcount());
+
+    file.close();
+    return content;
+}
 
 int main() {
+    printWelcome();
 
-    // TODO: Finish the program!
-
-    std::cout << "Have a nice Life! "  << std::endl;
     return 0;
 }