[LINUX] [C language] My locomotive is too slow ~ I made a sl command ~
【Overview】
I made a sl command that can move the locomotive in the terminal.
However, the options are not implemented.
Also, my locomotive is slower than the original locomotive (it's slower than the original locomotive after it was created, but I wonder if this is more interesting ...).
The title is a homage to this article → My ls is too late
I created it by repeatedly looking at the execution result of the head family without looking at the code of the head family at all. (I don't know if the original code is on the net) [Addition] fujitanozomu commented and it was on GitHub below. https://github.com/mtoyoda/sl
[Preparation]
You will need curses.h when you run the code.
I referred to the following site for the installation method.
Linux Error: curses.h: No such file or directory Problem Solution
【environment】
[vagrant@vagrant-centos65 sl_command]$ cat /etc/centos-release
CentOS release 6.5 (Final)
【code】
When compiling gcc -o sl sl.c -l curses
sl.c
#include <stdio.h>
#include <curses.h>
#include <string.h>
void printSL();
int main(int argc, char *argv[])
{
//Initialization
initscr();
//Don't show cursor
curs_set(0);
//Do not display keyed characters
noecho();
//Do not use buffer
cbreak();
//Locomotive output
printSL();
//End terminal control
endwin();
return 0;
}
void printSL()
{
int count = 1;
int slScrInCol = 0, slScrOutCol = 0;
int lineNum = 0;
int colNum = 0;
//Get the current screen size
// curses.LINES defined by h,With COLS, even if you change the size of the terminal
//Get the current screen size because it will be the initial screen size
//colNum is not needed and will no longer be used
getmaxyx(stdscr, lineNum, colNum);
//To display the locomotive in the center of the screen
lineNum /= 4;
char str[24][1000] = {'0'};
int maxLen = strlen(" \\_/ \\__/ \\__/ \\__/ \\__/ \\_/ \\_/ \\_/ \\_/ \\_/");
//Magic number 6 is for fine adjustment
while(COLS + maxLen + 6 - slScrInCol != 0) {
strncpy(str[0], " ( ) (@@) ( ) (@) () @@ O @ O @ O", slScrInCol);
strncpy(str[1], " (@@@)", slScrInCol);
strncpy(str[2], " ( )", slScrInCol);
strncpy(str[3], " (@@@@)", slScrInCol);
strncpy(str[4], " ( )", slScrInCol);
strncpy(str[5], " (@@) ( ) ( ) () (@) @@ @ O @ O @", slScrInCol);
strncpy(str[6], " ( )", slScrInCol);
strncpy(str[7], " (@@@@)", slScrInCol);
strncpy(str[8], " ( )", slScrInCol);
strncpy(str[9], " (@@@)", slScrInCol);
//Chimney smoke output
//Smoke is displayed slower than the wheels because the speed at which the smoke and wheels move is different.
if (count <= 4) {
mvprintw(lineNum, COLS-slScrInCol, str[0]);
mvprintw(lineNum+1 ,COLS-slScrInCol, str[1]);
mvprintw(lineNum+2 ,COLS-slScrInCol, str[2]);
mvprintw(lineNum+3 ,COLS-slScrInCol, str[3]);
mvprintw(lineNum+4 ,COLS-slScrInCol, "");
mvprintw(lineNum+5 ,COLS-slScrInCol, str[4]);
} else {
mvprintw(lineNum, COLS-slScrInCol, str[5]);
mvprintw(lineNum+1 ,COLS-slScrInCol, str[6]);
mvprintw(lineNum+2 ,COLS-slScrInCol, str[7]);
mvprintw(lineNum+3 ,COLS-slScrInCol, str[8]);
mvprintw(lineNum+4 ,COLS-slScrInCol, "");
mvprintw(lineNum+5 ,COLS-slScrInCol, str[9]);
}
strncpy(str[10], " ==== ________ ___________", slScrInCol);
strncpy(str[11], " _D _| |_______/ \\__I_I_____===__|_________|", slScrInCol);
strncpy(str[12], " |(_)--- | H\\________/ | | =|___ ___| _________________", slScrInCol);
strncpy(str[13], " / | | H | | | | ||_| |_|| _| \\_____A", slScrInCol);
strncpy(str[14], " | | | H |__--------------------| [___] | =| |", slScrInCol);
strncpy(str[15], " | ________|___H__/__|_____/[][]~\\_______| | -| |", slScrInCol);
strncpy(str[16], " |/ | |-----------i_____I [][] [] D |=======|____|________________________|_", slScrInCol);
//Output above the wheels
mvprintw(lineNum+6 , COLS-slScrInCol, str[10]);
mvprintw(lineNum+7 , COLS-slScrInCol, str[11]);
mvprintw(lineNum+8 , COLS-slScrInCol, str[12]);
mvprintw(lineNum+9 , COLS-slScrInCol, str[13]);
mvprintw(lineNum+10, COLS-slScrInCol, str[14]);
mvprintw(lineNum+11, COLS-slScrInCol, str[16]);
mvprintw(lineNum+12, COLS-slScrInCol, str[10]);
strncpy(str[17], "__/ =| o |=-O=====O=====O=====O\\ ____Y___________|__|__________________________|_", slScrInCol);
strncpy(str[18], " |/-=|___|= || || || |_____/\\___/ |_D__D__D_| |_D__D__D_|", slScrInCol);
strncpy(str[19], " \\_/ \\__/ \\__/ \\__/ \\__/ \\_/ \\_/ \\_/ \\_/ \\_/", slScrInCol);
strncpy(str[20], "__/ =| o |=-~~\\ /~~\\ /~~\\ /~~\\ ____Y___________|__|__________________________|_", slScrInCol);
strncpy(str[21], " |/-=|___|=O=====O=====O=====O |_____/\\___/ |_D__D__D_| |_D__D__D_|", slScrInCol);
strncpy(str[22], " \\_/ \\_O=====O=====O=====O/ \\_/ \\_/ \\_/ \\_/ \\_/", slScrInCol);
strncpy(str[23], " |/-=|___|= O=====O=====O=====O|_____/\\___/ |_D__D__D_| |_D__D__D_|", slScrInCol);
//Wheel part output
if (count % 4 == 1) {
mvprintw(lineNum+13, COLS-slScrInCol, str[17]);
mvprintw(lineNum+14, COLS-slScrInCol, str[18]);
mvprintw(lineNum+15, COLS-slScrInCol, str[19]);
} else if (count % 4 == 2) {
mvprintw(lineNum+13, COLS-slScrInCol, str[20]);
mvprintw(lineNum+14, COLS-slScrInCol, str[21]);
mvprintw(lineNum+15, COLS-slScrInCol, str[19]);
} else if (count % 4 == 3) {
mvprintw(lineNum+13, COLS-slScrInCol, str[20]);
mvprintw(lineNum+14, COLS-slScrInCol, str[18]);
mvprintw(lineNum+15, COLS-slScrInCol, str[22]);
} else {
mvprintw(lineNum+13, COLS-slScrInCol, str[20]);
mvprintw(lineNum+14, COLS-slScrInCol, str[23]);
mvprintw(lineNum+15, COLS-slScrInCol, str[19]);
}
//To avoid increasing the number of counts
if (count / 8 == 1) {
count = 1;
} else {
count++;
}
//Screen output when the head of the locomotive goes out from the left side of the screen
if (COLS - slScrInCol <= 0) {
if (count <= 4) {
mvprintw(lineNum, 0, &str[0][slScrOutCol]);
mvprintw(lineNum+1 ,0, &str[1][slScrOutCol]);
mvprintw(lineNum+2 ,0, &str[2][slScrOutCol]);
mvprintw(lineNum+3 ,0, &str[3][slScrOutCol]);
mvprintw(lineNum+4 ,0, "");
mvprintw(lineNum+5 ,0, &str[4][slScrOutCol]);
} else {
mvprintw(lineNum, 0, &str[5][slScrOutCol]);
mvprintw(lineNum+1 ,0, &str[6][slScrOutCol]);
mvprintw(lineNum+2 ,0, &str[7][slScrOutCol]);
mvprintw(lineNum+3 ,0, &str[8][slScrOutCol]);
mvprintw(lineNum+4 ,0, "");
mvprintw(lineNum+5 ,0, &str[9][slScrOutCol]);
}
mvprintw(lineNum+6 , 0, &str[10][slScrOutCol]);
mvprintw(lineNum+7 , 0, &str[11][slScrOutCol]);
mvprintw(lineNum+8 , 0, &str[12][slScrOutCol]);
mvprintw(lineNum+9 , 0, &str[13][slScrOutCol]);
mvprintw(lineNum+10, 0, &str[14][slScrOutCol]);
mvprintw(lineNum+11, 0, &str[16][slScrOutCol]);
mvprintw(lineNum+12, 0, &str[10][slScrOutCol]);
if (count % 4 == 1) {
mvprintw(lineNum+13, 0, &str[17][slScrOutCol]);
mvprintw(lineNum+14, 0, &str[18][slScrOutCol]);
mvprintw(lineNum+15, 0, &str[19][slScrOutCol]);
} else if (count % 4 == 2) {
mvprintw(lineNum+13, 0, &str[20][slScrOutCol]);
mvprintw(lineNum+14, 0, &str[21][slScrOutCol]);
mvprintw(lineNum+15, 0, &str[19][slScrOutCol]);
} else if (count % 4 == 3) {
mvprintw(lineNum+13, 0, &str[20][slScrOutCol]);
mvprintw(lineNum+14, 0, &str[18][slScrOutCol]);
mvprintw(lineNum+15, 0, &str[22][slScrOutCol]);
} else {
mvprintw(lineNum+13, 0, &str[20][slScrOutCol]);
mvprintw(lineNum+14, 0, &str[23][slScrOutCol]);
mvprintw(lineNum+15, 0, &str[19][slScrOutCol]);
}
slScrOutCol++;
}
slScrInCol++;
//Wait 60ms
usleep(6 * 10000);
refresh();
clear();
}
}
【Execution result】
[My locomotive]
[Locomotive of the head family]
[Reference site]
I wrote a breakout that is too simple in C language Curses A super-explanatory explanation of frequently used functions
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