Implementacija padajoče matrice
Od zore računalnikov je Hollywood močno prikazoval hekerja ali programerja kot nekoga, ki sedi za računalnikom in tipka naključne ključe na računalniku, ki se na koncu prevede v simulacijo, podobno padajoči matriki. Tukaj bomo poskušali implementirati podobno simulacijo padajoče matrike na konzoli z uporabo C++.
Ideja tukaj je natisniti naključne znake v določeni širini, kjer imata dva zaporedna znaka lahko določeno količino vrzeli, določeno naključno, ali pa tudi ne. Med tiskanjem zaporednih vrstic je treba uporabiti določeno količino zakasnitve, da se doseže "učinek padanja".
CPP // C++ program for implementation of falling matrix. #include #include #include #include #include #include // Width of the matrix line const int width = 70 ; // Defines the number of flips in Boolean Array 'switches' const int flipsPerLine = 5 ; // Delay between two successive line print const int sleepTime = 100 ; using namespace std ; int main () { int i = 0 x = 0 ; // srand initialized with time function // to get distinct rand values at runtime srand ( time ( NULL )); // Used to decide whether to print // the character in that particular iteration bool switches [ width ] = { 0 }; // Set of characters to print from const string ch = '1234567890qwertyuiopasdfghjkl' 'zxcvbnm./';[]!@#$%^&*()-=_+' ; const int l = ch . size (); // Green font over black console duh! system ( 'Color 0A' ); // Indefinite Loop while ( true ) { // Loop over the width // Increment by 2 gives better effect for ( i = 0 ; i < width ; i += 2 ) { // Print character if switches[i] is 1 // Else print a blank character if ( switches [ i ]) cout < < ch [ rand () % l ] < < ' ' ; else cout < < ' ' ; } // Flip the defined amount of Boolean values // after each line for ( i = 0 ; i != flipsPerLine ; ++ i ) { x = rand () % width ; switches [ x ] = ! switches [ x ]; } // New Line cout < < endl ; // Using sleep_for function to delay // chrono milliseconds function to convert to milliseconds this_thread :: sleep_for ( chrono :: milliseconds ( sleepTime )); } return 0 ; }
Java import java.util.Random ; public class FallingMatrix { // Width of the matrix line static final int width = 70 ; // Defines the number of flips in Boolean Array 'switches' static final int flipsPerLine = 5 ; // Delay between two successive line prints static final int sleepTime = 100 ; public static void main ( String [] args ) { // Used to decide whether to print the character in that particular iteration boolean [] switches = new boolean [ width ] ; // Set of characters to print from String ch = '1234567890qwertyuiopasdfghjkl' + 'zxcvbnm./';[]!@#$%^&*()-=_+' ; int l = ch . length (); // Green font over black console System . out . print ( 'u001B[32m' ); // Indefinite Loop while ( true ) { // Loop over the width // Increment by 2 gives a better effect for ( int i = 0 ; i < width ; i += 2 ) { // Print character if switches[i] is true // Else print a blank character if ( switches [ i ] ) System . out . print ( ch . charAt ( new Random (). nextInt ( l )) + ' ' ); else System . out . print ( ' ' ); } // Flip the defined amount of Boolean values after each line for ( int i = 0 ; i < flipsPerLine ; ++ i ) { int x = new Random (). nextInt ( width ); switches [ x ] = ! switches [ x ] ; } // New Line System . out . println (); // Delay try { Thread . sleep ( sleepTime ); } catch ( InterruptedException e ) { e . printStackTrace (); } } } }
Python3 # Python program for implementation of falling matrix. import random import time # Width of the matrix line width = 70 # Defines the number of flips in Boolean Array 'switches' flipsPerLine = 5 # Delay between two successive line print sleepTime = 0.1 # Set of characters to print from ch = '1234567890qwertyuiopasdfghjklzxcvbnm./';[]!@#$%^&*()-=_+' # Used to decide whether to print # the character in that particular iteration switches = [ 0 ] * width # Indefinite Loop while True : # Loop over the width # Increment by 2 gives better effect for i in range ( 0 width 2 ): # Print character if switches[i] is 1 # Else print a blank character if switches [ i ]: print ( ch [ random . randint ( 0 len ( ch ) - 1 )] end = ' ' ) else : print ( ' ' end = ' ' ) # Flip the defined amount of Boolean values # after each line for _ in range ( flipsPerLine ): x = random . randint ( 0 width - 1 ) switches [ x ] = not switches [ x ] # New Line print () # Using sleep function to delay time . sleep ( sleepTime )
JavaScript // Importing required modules const sleep = require ( 'util' ). promisify ( setTimeout ); // Width of the matrix line let width = 70 ; // Defines the number of flips in Boolean Array 'switches' let flipsPerLine = 5 ; // Delay between two successive line print let sleepTime = 100 ; // in milliseconds // Set of characters to print from let ch = '1234567890qwertyuiopasdfghjklzxcvbnm./';[]!@#$%^&*()-=_+' ; // Used to decide whether to print // the character in that particular iteration let switches = Array ( width ). fill ( 0 ); // Indefinite Loop async function fallingMatrix () { while ( true ) { // Loop over the width // Increment by 2 gives better effect for ( let i = 0 ; i < width ; i += 2 ) { // Print character if switches[i] is 1 // Else print a blank character process . stdout . write ( switches [ i ] ? ch [ Math . floor ( Math . random () * ch . length )] + ' ' : ' ' ); } // Flip the defined amount of Boolean values // after each line for ( let _ = 0 ; _ < flipsPerLine ; _ ++ ) { let x = Math . floor ( Math . random () * width ); switches [ x ] = ! switches [ x ]; } // New Line console . log (); // Using sleep function to delay await sleep ( sleepTime ); } } fallingMatrix ();
To natisne neverjetno simulacijo Falling-Matrix na konzoli. Opomba:
- Ta program se ne bi zagnal z gumbom Run on IDE, ker je sistem onemogočen.
- Če se med prevajanjem tega programa pojavi napaka prevajalnika. Prevedite ga s spodnjim ukazom na GCC.
$ g++ -std=c++11 abc.cpp -o falling.o
$ falling.o
