aclock-netware.c

/*
 * aclock - ascii clock for Novell Netware Text Console (NLM)
 *
 * Copyright (c) 2002-2006 Antoni Sawicki <tenox@tenox.tc>
 * Version 1.9 (netware-nlm); Dublin, Dec 2006
 *
 * Compilation: Open Watcom 1.5, Requires CLIB
 *
 */

#include <nwconio.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>

#define PI 3.14159265358979323846

void draw_point(int x, int y, char p) {
    gotoxy(x,y);
    printf("%c", p);
}

void draw_circle(int hand_max, int sXcen, int sYcen, int FontHW){
    double x,y;
    int r;
    char c;


    for(r=0;r<60;r++){
	x=cos(r*PI/180*6)*hand_max*FontHW+sXcen;
	y=sin(r*PI/180*6)*hand_max+sYcen;
	switch (r) {
	    case 0:
	    case 5:
	    case 10:
	    case 15:
	    case 20:
	    case 25:
	    case 30:
	    case 35:
	    case 40:
	    case 45:
	    case 50:
	    case 55:
		    c='o';
		    break;
	    default:
		    c='.';
		    break;
	}
	draw_point(x,y,c);
    }
       
}


void draw_hand(int minute, int hlenght, char c, int sXcen, int sYcen, int FontHW){
    double x,y;
    int n;
    float r=(minute-15)*(PI/180)*6;

    for(n=1; n<hlenght; n++){
	    x=(cos(r)*n*FontHW)+sXcen;
	    y=(sin(r)*n)+sYcen;
	    draw_point(x,y,c);
    }
}

void draw_text(char *p, int x, int y){
    gotoxy(x,y);
    printf("%s", p);
}

int main(int argc, char **argv) {

    char info[]="Written by Antoni Sawicki <tenox@tenox.tc>\nVersion 1.9; Dublin, Dec 2006\n";
    char digital_time[15];
    WORD FontHW = 2;
    WORD sXmax, sYmax, smax, hand_max, sXcen, sYcen;
    time_t t;
    struct tm *ltime;

    for(;;) {
        time(&t);
        ltime=localtime(&t);

        GetSizeOfScreen(&sYmax, &sXmax);

        if(sXmax/2<=sYmax)
            smax=sXmax/2;
        else
            smax=sYmax;

        hand_max = (smax/2)-1;

        sXcen = sXmax/2;
        sYcen = sYmax/2;

        clrscr();
        draw_hand(ltime->tm_hour*5+ltime->tm_min/10, 2*hand_max/3, 'h', sXcen, sYcen, FontHW);
        draw_hand(ltime->tm_min, hand_max-2, 'm', sXcen, sYcen, FontHW);
        draw_hand(ltime->tm_sec, hand_max-1, '.', sXcen, sYcen, FontHW);

        draw_circle(hand_max, sXcen, sYcen, FontHW);
        draw_text(".:ACLOCK:.", sXcen-5, sYcen/3);

        sprintf(digital_time, "[%02d:%02d:%02d]", ltime->tm_hour, ltime->tm_min, ltime->tm_sec);
        draw_text(digital_time, sXcen-5, 4*sYmax/5); 

        sleep(1);
    }
    
    return 0;
}