Here's some multi-coloured screen-candy for you to try.
Select and copy the C++ source-code at the bottom of this post.
Paste into a text editor, such as Nano or Geany.
Then save the new file, ending in .cpp
I used snowstorm.cpp
To compile from the command-line:
g++ -o snowstorm.cpp snow
To run from the command-line:
./snow
To speed the program up, reduce the value that the usleep() function uses - try 100
To slow it down, increase the value.
Code is below...
#include <cstdlib> // To use random number function
#include <iostream> // To use the screen - "channel out" cout, flush
#include <unistd.h> // To slow things down using usleep function
#include <sstream> // To convert between numbers and strings
using namespace std; // Want to use short abbreviations
int main()
{
// Will count number of flakes
// This is used to determine which colour to display
int snowflake = 0;
// Do this code again and again forever...
while ( true )
{
// Pick a random column number for the screen
int column = random() % 80;
// Pick a random row number
int row = random() % 25;
// Convert the column number to a string of characters
stringstream columnConverter;
columnConverter << column;
string columnString;
columnConverter >> columnString;
// Convert the row number to a string of characters
stringstream rowConverter;
rowConverter << row;
string rowString;
rowConverter >> rowString;
// Position the cursor on screen at particular row and column
cout << "\e[" + rowString + ";" + columnString + "H";
// Decide what colour to use to display snowflake
switch ( snowflake % 3 )
{
case 0: cout << "\e[38;5;226m"; break; // Yellow
case 1: cout << "\e[31m"; break; // Red
case 2: cout << "\e[0m"; break; // White/terminal default colour
}
// Increase snowflake counter
snowflake++;
// Display 1 or 0
// (obtained by MOD 2 remainder on the number of snowflakes)
cout << snowflake % 2;
// Update screen NOW!
cout << flush;
// Pause for part of a second
usleep(10000);
}
return 0;
}