SimpleRepos

#include <iostream>
#include <format>

int main() {
  int sum = 0;
  for(int i = 0; i <= 16; i++) {
    std::cout << std::format("{:>2} : {:>3}\n", i, sum);
    sum += i + i + 1;
  }

SimpleRepos

#include <Windows.h>
#include <mmdeviceapi.h>
#include <endpointvolume.h>

int CALLBACK WinMain(HINSTANCE, HINSTANCE, LPSTR, int) {
  CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);

  IMMDeviceEnumerator* deviceEnumerator;
  CoCreateInstance(__uuidof(MMDeviceEnumerator), NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&deviceEnumerator));

SimpleRepos

std::string stringf(const char* format, ...) {
  va_list args;
  va_start(args, format);
  std::vector<char> buffer(_vscprintf(format, args) + 1);
  _vsnprintf_s(buffer.data(), buffer.size(), buffer.size(), format, args);
  va_end(args);

  return buffer.data();
}

SimpleRepos

#include <chrono>

class Timer {
public:
  Timer() { prev = now(); }

  //get seconds elapsed since last getDT (or construction)
  float getDT() {
    auto cur = now();
    std::chrono::duration<float> seconds = cur - prev;

SimpleRepos

#include <iostream>
#include <string>

template <typename T, typename = typename std::enable_if<std::is_arithmetic<T>::value, T>::type>
T getUserValue(const std::string& requestString) {

  T retval;
  while(true) {
    std::cout << requestString;
    std::cin >> retval;

SimpleRepos

#include <functional>

class OnScopeExit {
public:
  OnScopeExit(std::function<void()> func) : func(func) {}
  ~OnScopeExit() { func(); }
private:
  std::function<void()> func;
};

SimpleRepos

//Note that this is slow compared to the traditional allocate-and-read method.
//When testing a 230MB file on my machine this was around 4 sec while the traditional method
//was 0.9s. That may be acceptable in some cases, but in 'debug' build in VS it was 113 seconds,
//so honestly this is probably better used for small files or just for showing off.

std::string loadFile(const std::string& fname) {
  std::ifstream file(fname);
  if(!file) { throw std::runtime_error("loadFile() - File could not be opened."); }
  std::stringstream ss;
  ss << file.rdbuf();

SimpleRepos

//written to test http://stackoverflow.com/questions/36090269/finding-height-of-point-on-height-map-triangles

float calcZ(float x, float y, Vec a, Vec b, Vec c) {
  //most of these are reused so just solve
  //them all first and store the results
  float cxbx = c.x - b.x;
  float  xcx =   x - c.x;
  float  ycy =   y - c.y;
  float bycy = b.y - c.y;
  float axcx = a.x - c.x;