#include <iostream>
#include <string>
#include <chrono>
#include <thread>
#include <cstdlib>
#include <sstream>
enum Color
{
NONE = 0,
BLACK, RED, GREEN,
YELLOW, BLUE, MAGENTA,
CYAN, WHITE
};
static std::string set_color(Color foreground = NONE, Color background = NONE)
{
std::stringstream s;
s << "\033[";
if (!foreground && ! background){
s << "0"; // reset colors if no params
}
if (foreground) {
s << 29 + foreground;
if (background) s << ";";
}
if (background) {
s << 39 + background;
}
s << "m";
return s.str();
}
const int width = 158; // Width of terminal window
const int flipsPerLine = 5; // No. of columns changed per line
const int millisecondsOfSleep = 50; // Delay between lines in millisecond
int main() {
std::cout << set_color(GREEN);
system("color 2");
srand(time_t(NULL));
bool switches[width] = { true };
const std::string garbage = "1234567890/*-+.,./;[]\\=_~`!@#$%^&*()";
const auto glen = garbage.size();
while (true) { // Waiting for Ctrl-C
for (int i = 0; i != width; ++i) {
if (switches[i]) {
std::cout << garbage[rand() % glen];
} else {
std::cout << ' ';
}
}
std::cout << std::endl;
for (int i = 0; i != flipsPerLine; ++i) {
int x = rand() % width;
switches[x] = !switches[x];
// Was switches[x] = (switches[x]) ? false : true; thanks to Adrian Petrescu
// Flipping switches
}
std::this_thread::sleep_for(std::chrono::milliseconds(millisecondsOfSleep));
}
return 0;
}
