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Ingy döt Net
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122
Task/Matrix-digital-rain/C/matrix-digital-rain-1.c
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122
Task/Matrix-digital-rain/C/matrix-digital-rain-1.c
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/**
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* Loosely emulates the "digital rain" effect from The Matrix.
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*
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* @author Dan Ruscoe <dan@ruscoe.org>
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*/
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#include <unistd.h>
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#include <time.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ncurses.h>
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/* Time between row updates in microseconds.
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Controls the speed of the digital rain effect.
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*/
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#define ROW_DELAY 40000
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/**
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* Gets a random integer within a given range.
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*
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* @param int min The low-end of the range.
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* @param int max The high-end of the range.
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*
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* @return int The random integer.
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*/
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int get_rand_in_range(int min, int max)
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{
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return (rand() % ((max + 1) - min) + min);
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}
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int main(void)
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{
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/* Basic seed for random numbers. */
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srand(time(NULL));
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/* Characters to randomly appear in the rain sequence. */
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char chars[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9'};
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int total_chars = sizeof(chars);
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/* Set up ncurses screen and colors. */
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initscr();
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noecho();
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curs_set(FALSE);
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start_color();
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init_pair(1, COLOR_GREEN, COLOR_BLACK);
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attron(COLOR_PAIR(1));
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int max_x = 0, max_y = 0;
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getmaxyx(stdscr, max_y, max_x);
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/* Create arrays of columns based on screen width. */
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/* Array containing the current row of each column. */
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int columns_row[max_x];
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/* Array containing the active status of each column.
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A column draws characters on a row when active.
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*/
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int columns_active[max_x];
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int i;
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/* Set top row as current row for all columns. */
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for (i = 0; i < max_x; i++)
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{
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columns_row[i] = -1;
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columns_active[i] = 0;
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}
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while (1)
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{
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for (i = 0; i < max_x; i++)
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{
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if (columns_row[i] == -1)
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{
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/* If a column is at the top row, pick a
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random starting row and active status.
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*/
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columns_row[i] = get_rand_in_range(0, max_y);
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columns_active[i] = get_rand_in_range(0, 1);
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}
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}
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/* Loop through columns and draw characters on rows. */
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for (i = 0; i < max_x; i++)
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{
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if (columns_active[i] == 1)
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{
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/* Draw a random character at this column's current row. */
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int char_index = get_rand_in_range(0, total_chars);
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mvprintw(columns_row[i], i, "%c", chars[char_index]);
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}
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else
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{
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/* Draw an empty character if the column is inactive. */
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mvprintw(columns_row[i], i, " ");
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}
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columns_row[i]++;
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/* When a column reaches the bottom row, reset to top. */
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if (columns_row[i] >= max_y)
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{
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columns_row[i] = -1;
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}
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/* Randomly alternate the column's active status. */
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if (get_rand_in_range(0, 1000) == 0)
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{
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columns_active[i] = (columns_active[i] == 0) ? 1 : 0;
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}
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}
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usleep(ROW_DELAY);
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refresh();
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}
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endwin();
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return 0;
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}
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185
Task/Matrix-digital-rain/C/matrix-digital-rain-2.c
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185
Task/Matrix-digital-rain/C/matrix-digital-rain-2.c
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/*******************************************************************************
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*
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* Digital ASCII rain - the single thread variant.
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* 2012 (C) by Author, 2020 GPL licensed for RossetaCode
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*
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*******************************************************************************/
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#include <assert.h> /* assertions */
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#include <conio.h> /* console operations */
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#include <locale.h> /* l10n and i18n */
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#include <string.h> /* operations on strings and memory blocks */
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#include <process.h> /* Microsoft Windows API for threads etc. */
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#include <stdio.h> /* standard i/o library */
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#include <stdlib.h> /* standard library with rand() function */
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#include <time.h> /* time(NULL) used as srand(time(NULL)) */
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#include <windows.h> /* just the Microsoft Windows main header for C */
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/*
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* Global variables - you could use local variables instead...
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* but then e.g. the memory for the buffer variable would be unnecessarily
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* allocated and released manifold, which would lead to a worse performance.
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*/
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HANDLE hStdOut; /* the handle to console "out" */
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CONSOLE_SCREEN_BUFFER_INFO csbi; /* numbers of rows, columns etc. */
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PCHAR_INFO buffer = NULL; /* an enough big buffer */
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COORD bufferSize, bufferCoord; /* the size of buffer etc. */
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/*
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* A structure that holds data that is distinct for each column.
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*/
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struct Data
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{
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DWORD armed; /* time in ms to synchronize */
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int delay; /* armed = current_time + delay */
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BOOL show; /* TRUE - draw, FALSE - erase */
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COORD ncp; /* position for drawing new characters */
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SMALL_RECT s, d; /* source/destination regions for copy */
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};
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/*
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* A function to generate random numbers from the range (a, b).
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* NOTE: POSIX rand () is not thread safe,
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* but we use secure rand() from MS runtime libraries.
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*/
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int rnd(int a, int b)
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{
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return a + rand() % (b + 1 - a);
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}
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BOOL randomShow(void)
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{
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return rnd(0, 99) < 65;
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}
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int randomDelay(void)
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{
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return rnd(0, 150) + rnd(0, 150) + rnd(0, 150);
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}
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BOOL randomRegenerate(void)
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{
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return rnd(0, 99) < 2;
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}
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void column_init(struct Data* data, int k)
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{
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data->armed = 0;
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data->show = randomShow();
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data->delay = randomDelay();
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data->s.Left = k;
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data->s.Top = 0;
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data->s.Bottom = bufferSize.Y - 2;
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data->s.Right = k;
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data->d.Left = data->s.Left;
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data->d.Top = data->s.Top + 1;
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data->d.Right = data->s.Right;
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data->d.Bottom = data->s.Bottom + 1;
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data->ncp.X = k;
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data->ncp.Y = 0;
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}
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void column_run(struct Data* data)
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{
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char c;
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WORD a;
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DWORD result;
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/*
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* Shift down a column.
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*/
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ReadConsoleOutput (hStdOut, buffer, bufferSize, bufferCoord, &data->s);
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WriteConsoleOutput(hStdOut, buffer, bufferSize, bufferCoord, &data->d);
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/*
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* If show == TRUE then generate a new character.
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* If show == FALSE write the space to erase.
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*/
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if(data->show)
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{
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c = (rnd(1,100) <= 15) ? ' ' : rnd( 'a', 'z' );
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a = FOREGROUND_GREEN | ((rnd(1,100) > 10) ? 0 : FOREGROUND_INTENSITY);
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}
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else
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{
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c = ' ';
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a = FOREGROUND_GREEN;
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}
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WriteConsoleOutputCharacter(hStdOut, &c, 1, data->ncp, &result);
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WriteConsoleOutputAttribute(hStdOut, &a, 1, data->ncp, &result);
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/*
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* Randomly regenerate the delay and the visibility state of the column.
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*/
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if(randomRegenerate()) data->show = randomShow();
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if(randomRegenerate()) data->delay = randomDelay();
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data->armed = GetTickCount() + data->delay;
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}
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int main(int argc, char* argv[])
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{
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int j;
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struct Data* table;
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srand((unsigned int)time(NULL));
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hStdOut = GetStdHandle( STD_OUTPUT_HANDLE );
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SetConsoleTitle("Digital ASCII rain");
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/*
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* An attempt to run in the full-screen mode.
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*/
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if(argc == 1)
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{
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COORD coord;
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CONSOLE_CURSOR_INFO cci;
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cci.bVisible = FALSE;
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cci.dwSize = 0;
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SetConsoleDisplayMode(hStdOut, CONSOLE_FULLSCREEN_MODE, &coord);
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SetConsoleCursorInfo(hStdOut, &cci);
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}
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GetConsoleScreenBufferInfo(hStdOut, &csbi );
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//SetConsoleTextAttribute(hStdOut, FOREGROUND_GREEN);
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bufferSize.X = 1;
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bufferSize.Y = csbi.dwSize.Y - 1;
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bufferCoord.X = 0;
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bufferCoord.Y = 0;
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buffer = (PCHAR_INFO)calloc(bufferSize.Y, sizeof(CHAR_INFO));
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assert(buffer != NULL);
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table = (struct Data*)calloc(csbi.dwSize.X, sizeof(struct Data));
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assert(table != NULL);
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for(j = 0; j < csbi.dwSize.X; j++) column_init(&table[j], j);
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/*
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* Main loop. Sleep(1) significally decreases the CPU load.
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*/
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while(!_kbhit())
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{
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DWORD t = GetTickCount();
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for(j = 0; j < csbi.dwSize.X; j++)
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if(table[j].armed < t) column_run(&table[j]);
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Sleep(1);
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}
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free(table);
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free(buffer);
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return 0;
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}
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204
Task/Matrix-digital-rain/C/matrix-digital-rain-3.c
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204
Task/Matrix-digital-rain/C/matrix-digital-rain-3.c
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/*******************************************************************************
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*
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* Digital ASCII rain - multithreaded.
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* 2012 (C) by Author, 2020 GPL licensed for RossetaCode
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*
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*******************************************************************************/
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#include <assert.h> /* assertions */
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#include <conio.h> /* console operations */
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#include <locale.h> /* l10n and i18n */
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#include <string.h> /* operations on strings and memory blocks */
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#include <process.h> /* Microsoft Windows API for threads etc. */
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#include <stdio.h> /* standard i/o library */
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#include <stdlib.h> /* standard library with rand() function */
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#include <time.h> /* time(NULL) used as srand(time(NULL)) */
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#include <windows.h> /* just the Microsoft Windows main header for C */
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//#define SYNCHRONIZED_INIT
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/*
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* Global variables, common for all threads.
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* The handle eventThreadInitialized is to synchronize threads initializations.
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*/
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#ifdef SYNCHRONIZED_INIT
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HANDLE eventThreadInitialized;
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#endif
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BOOL loop = TRUE; /* FALSE - przerwać działanie */
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HANDLE hStdOut; /* uchwyt do konsoli "out" */
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CONSOLE_SCREEN_BUFFER_INFO csbi; /* liczby wierszy i kolumn itd.*/
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struct InitThreadData
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{
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int column;
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unsigned seed;
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};
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/*
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* A function to generate random numbers from the range (a, b).
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* NOTE: POSIX rand () is not thread safe,
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* but we use secure rand() from MS runtime libraries.
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*/
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int rnd(int a, int b)
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{
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return a + rand() % (b + 1 - a);
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}
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BOOL randomShow(void)
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{
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return rnd(0, 99) < 65;
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}
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int randomDelay(void)
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{
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return rnd(0,150) + rnd(0,150) + rnd(0,150);
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}
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BOOL randomRegenerate(void)
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{
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return rnd(0,99) < 2;
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}
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/*
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* Update a single column.
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*/
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void one_column(void *arg)
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{
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BOOL show;
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int k;
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char c;
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WORD a;
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int delay;
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PCHAR_INFO buffer;
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COORD bufferSize, bufferCoord, newCharPosition;
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SMALL_RECT s, d;
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DWORD result;
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/*
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* Retrieve the column number, initialize the (pseudo)random numbers
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* generator with a "private" seed, check assertions.
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*/
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k = ((struct InitThreadData*)arg)->column;
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srand(((struct InitThreadData*)arg)->seed);
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assert(csbi.dwSize.X != 0 && csbi.dwSize.Y != 0);
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assert(0 <= k && k <= csbi.dwSize.X);
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show = randomShow();
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delay = randomDelay();
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bufferSize.X = 1;
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bufferSize.Y = csbi.dwSize.Y - 1;
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bufferCoord.X = 0;
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bufferCoord.Y = 0;
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buffer = (PCHAR_INFO)malloc(bufferSize.Y * sizeof(CHAR_INFO));
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assert( buffer != NULL );
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s.Left = k;
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s.Top = 0;
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s.Bottom = bufferSize.Y - 2;
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s.Right = k;
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d.Left = s.Left;
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d.Top = s.Top + 1;
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d.Right = s.Right;
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d.Bottom = s.Bottom + 1;
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newCharPosition.X = k;
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newCharPosition.Y = 0;
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#ifdef SYNCHRONIZED_INIT
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SetEvent(eventThreadInitialized);
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#endif
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/*
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* Main loop inside this one thread.
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*/
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while(loop)
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{
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ReadConsoleOutput ( hStdOut, buffer, bufferSize, bufferCoord, &s);
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WriteConsoleOutput( hStdOut, buffer, bufferSize, bufferCoord, &d);
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if(show)
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{
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c = (rnd(1,100) <= 15) ? ' ' : rnd( 'a', 'z' );
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a = FOREGROUND_GREEN | ((rnd(1,100) > 1) ? 0 : FOREGROUND_INTENSITY);
|
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}
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else
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{
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c = ' ';
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a = FOREGROUND_GREEN;
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}
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WriteConsoleOutputCharacter( hStdOut, &c, 1, newCharPosition, &result );
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WriteConsoleOutputAttribute( hStdOut, &a, 1, newCharPosition, &result );
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if(randomRegenerate()) show = randomShow();
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if(randomRegenerate()) delay = randomDelay();
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Sleep( delay );
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}
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free(buffer);
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}
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int main(int argc, char* argv[])
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{
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int j;
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struct InitThreadData *init = NULL;
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srand((time_t)time(NULL));
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hStdOut = GetStdHandle( STD_OUTPUT_HANDLE );
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SetConsoleTitle("MATRIX");
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if(argc == 1)
|
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{
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COORD coord;
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CONSOLE_CURSOR_INFO cci;
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cci.bVisible = FALSE;
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cci.dwSize = 0;
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SetConsoleDisplayMode(hStdOut,CONSOLE_FULLSCREEN_MODE,&coord);
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SetConsoleCursorInfo(hStdOut,&cci);
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}
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GetConsoleScreenBufferInfo( hStdOut, &csbi );
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//SetConsoleTextAttribute(hStdOut,FOREGROUND_GREEN);
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#ifdef SYNCHRONIZED_INIT
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eventThreadInitialized = CreateEvent(NULL,FALSE,FALSE,NULL);
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assert( eventThreadInitialized != NULL );
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#endif
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init = (struct InitThreadData*)
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malloc(csbi.dwSize.X * sizeof(struct InitThreadData));
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assert( init != NULL );
|
||||
|
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for(j = 0; j < csbi.dwSize.X; j++)
|
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{
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init[j].column = j;
|
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init[j].seed = rand();
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_beginthread(one_column, 0, (void*)&init[j]);
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#ifdef SYNCHRONIZED_INIT
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WaitForSingleObject(eventThreadInitialized,INFINITE);
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#endif
|
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}
|
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|
||||
getchar();
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free(init);
|
||||
|
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#ifdef SYNCHRONIZED_INIT
|
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CloseHandle(eventThreadInitialized);
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#endif SYNCHRONIZED_INIT
|
||||
|
||||
return 0;
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||||
}
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196
Task/Matrix-digital-rain/C/matrix-digital-rain-4.c
Normal file
196
Task/Matrix-digital-rain/C/matrix-digital-rain-4.c
Normal file
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@ -0,0 +1,196 @@
|
|||
/*******************************************************************************
|
||||
*
|
||||
* Digital ASCII rain - multithreaded.
|
||||
* 2012 (C) by Author, 2020 GPL licensed for RossetaCode
|
||||
*
|
||||
*******************************************************************************/
|
||||
|
||||
#include <assert.h> /* assertions */
|
||||
#include <conio.h> /* console operations */
|
||||
#include <locale.h> /* l10n and i18n */
|
||||
#include <string.h> /* operations on strings and memory blocks */
|
||||
#include <process.h> /* Microsoft Windows API for threads etc. */
|
||||
#include <stdio.h> /* standard i/o library */
|
||||
#include <stdlib.h> /* standard library with rand() function */
|
||||
#include <time.h> /* time(NULL) used as srand(time(NULL)) */
|
||||
#include <windows.h> /* just the Microsoft Windows main header for C */
|
||||
|
||||
|
||||
/*
|
||||
* Global variables, shared by fibers.
|
||||
*/
|
||||
|
||||
BOOL loop = TRUE;
|
||||
HANDLE hStdOut;
|
||||
CONSOLE_SCREEN_BUFFER_INFO csbi;
|
||||
|
||||
LPVOID mainFiber = NULL;
|
||||
|
||||
struct WorkingFiber
|
||||
{
|
||||
int column;
|
||||
DWORD callAfter;
|
||||
unsigned seed;
|
||||
LPVOID fiber;
|
||||
} *workingFibersTable = NULL;
|
||||
|
||||
/*
|
||||
* A function to generate random numbers from the range (a, b).
|
||||
* NOTE: POSIX rand () is not thread safe,
|
||||
* but we use secure rand() from MS runtime libraries.
|
||||
*/
|
||||
|
||||
int rnd(int a, int b)
|
||||
{
|
||||
return a + rand() % (b + 1 - a);
|
||||
}
|
||||
|
||||
BOOL randomShow(void)
|
||||
{
|
||||
return rnd(0, 99) < 65;
|
||||
}
|
||||
|
||||
int randomDelay(void)
|
||||
{
|
||||
return rnd(0,150) + rnd(0,150) + rnd(0,150);
|
||||
}
|
||||
|
||||
BOOL randomRegenerate(void)
|
||||
{
|
||||
return rnd(0,99) < 2;
|
||||
}
|
||||
|
||||
|
||||
VOID CALLBACK one_column(void *arg)
|
||||
{
|
||||
struct WorkingFiber *ptr;
|
||||
BOOL show;
|
||||
int k;
|
||||
char c;
|
||||
WORD a;
|
||||
int delay;
|
||||
PCHAR_INFO buffer;
|
||||
COORD bufferSize, bufferCoord, newCharPosition;
|
||||
SMALL_RECT s, d;
|
||||
DWORD result;
|
||||
|
||||
ptr = (struct WorkingFiber*)arg;
|
||||
k = ptr->column;
|
||||
ptr->callAfter = 0;
|
||||
srand(ptr->seed);
|
||||
assert(csbi.dwSize.X != 0 && csbi.dwSize.Y != 0);
|
||||
assert(0 <= k && k <= csbi.dwSize.X);
|
||||
|
||||
show = randomShow();
|
||||
delay = randomDelay();
|
||||
|
||||
bufferSize.X = 1;
|
||||
bufferSize.Y = csbi.dwSize.Y - 1;
|
||||
bufferCoord.X = 0;
|
||||
bufferCoord.Y = 0;
|
||||
|
||||
buffer = (PCHAR_INFO)malloc(bufferSize.Y * sizeof(CHAR_INFO));
|
||||
assert( buffer != NULL );
|
||||
|
||||
s.Left = k;
|
||||
s.Top = 0;
|
||||
s.Bottom = bufferSize.Y - 2;
|
||||
s.Right = k;
|
||||
|
||||
d.Left = s.Left;
|
||||
d.Top = s.Top + 1;
|
||||
d.Right = s.Right;
|
||||
d.Bottom = s.Bottom + 1;
|
||||
|
||||
newCharPosition.X = k;
|
||||
newCharPosition.Y = 0;
|
||||
|
||||
while(loop)
|
||||
{
|
||||
ReadConsoleOutput ( hStdOut, buffer, bufferSize, bufferCoord, &s);
|
||||
WriteConsoleOutput( hStdOut, buffer, bufferSize, bufferCoord, &d);
|
||||
|
||||
if(show)
|
||||
{
|
||||
c = (rnd(1,100) <= 15) ? ' ' : rnd( 'a', 'z' );
|
||||
a = FOREGROUND_GREEN | ((rnd(1,100) > 1) ? 0 : FOREGROUND_INTENSITY);
|
||||
}
|
||||
else
|
||||
{
|
||||
c = ' ';
|
||||
a = FOREGROUND_GREEN;
|
||||
}
|
||||
|
||||
WriteConsoleOutputCharacter( hStdOut, &c, 1, newCharPosition, &result );
|
||||
WriteConsoleOutputAttribute( hStdOut, &a, 1, newCharPosition, &result );
|
||||
|
||||
if(randomRegenerate()) show = randomShow();
|
||||
if(randomRegenerate()) delay = randomDelay();
|
||||
|
||||
ptr->callAfter = GetTickCount() + delay;
|
||||
SwitchToFiber(mainFiber);
|
||||
}
|
||||
|
||||
free(buffer);
|
||||
}
|
||||
|
||||
|
||||
int main(int argc, char* argv[])
|
||||
{
|
||||
int j;
|
||||
|
||||
srand((unsigned int)time(NULL));
|
||||
|
||||
hStdOut = GetStdHandle( STD_OUTPUT_HANDLE );
|
||||
SetConsoleTitle("MATRIX - FIBERS");
|
||||
|
||||
if(argc == 1)
|
||||
{
|
||||
COORD coord;
|
||||
CONSOLE_CURSOR_INFO cci;
|
||||
|
||||
cci.bVisible = FALSE;
|
||||
cci.dwSize = 0;
|
||||
SetConsoleDisplayMode(hStdOut,CONSOLE_FULLSCREEN_MODE,&coord);
|
||||
SetConsoleCursorInfo(hStdOut,&cci);
|
||||
}
|
||||
|
||||
GetConsoleScreenBufferInfo( hStdOut, &csbi );
|
||||
//SetConsoleTextAttribute(hStdOut,FOREGROUND_GREEN);
|
||||
|
||||
mainFiber = ConvertThreadToFiber(NULL);
|
||||
assert( mainFiber != NULL );
|
||||
|
||||
workingFibersTable = (struct WorkingFiber*)
|
||||
calloc(csbi.dwSize.X, sizeof(struct WorkingFiber));
|
||||
assert( workingFibersTable != NULL );
|
||||
|
||||
for(j = 0; j < csbi.dwSize.X; j++)
|
||||
{
|
||||
workingFibersTable[j].column = j;
|
||||
workingFibersTable[j].callAfter = 0;
|
||||
workingFibersTable[j].seed = rand();
|
||||
workingFibersTable[j].fiber = CreateFiber( 0, one_column, &workingFibersTable[j] );
|
||||
}
|
||||
|
||||
loop = TRUE;
|
||||
while(!_kbhit())
|
||||
{
|
||||
DWORD t = GetTickCount();
|
||||
for(j = 0; j < csbi.dwSize.X; j++)
|
||||
if(workingFibersTable[j].callAfter < t)
|
||||
SwitchToFiber( workingFibersTable[j].fiber );
|
||||
Sleep(1);
|
||||
}
|
||||
|
||||
loop = FALSE;
|
||||
for(j = 0; j < csbi.dwSize.X; j++)
|
||||
{
|
||||
SwitchToFiber( workingFibersTable[j].fiber );
|
||||
DeleteFiber(workingFibersTable[j].fiber);
|
||||
}
|
||||
|
||||
free(workingFibersTable);
|
||||
|
||||
return 0;
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue