[mirrors/Programs.git] / c / spiral.c

/*
 * Compile with:
 * gcc -lm aclox.c -o aclox; ./aclox
 * or
 * CFLAGS='-lm' make aclox; ./aclox
 */

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

//config
#define HOUR_NUMBERS 1
#define HI_PRECISION 1
#define SHOW_DIGITS 1
#define MINUTE_DOTS 1
#define SMOOTH_MOTION 1
#define zoom 2

//useful macros
#define max(a,b) ((a)>=(b)?(a):(b))
#define min(a,b) ((a)<=(b)?(a):(b))
#define PI 3.141592654
#define deg2rad(a) (((a)/180)*PI)
//phi = angle, r = length
#define polar2x(phi, r) ((r) * cos(deg2rad(phi)))
#define polar2y(phi, r) ((r) * sin(deg2rad(phi)))
#define cls() printf("\033[2J")
#define top() printf("\033[0;0H")

int llines = -1, lcols = -1;
void render_clock(double a) {
	//colors
	char color_empty = ' ';
	char color_s = '*';
	char color_center = 'o';

	//get size of terminal
	static int lines = -1;
	static int cols = -1;
	if(lines < 7 || cols < 7) {
		FILE *p;
		p = popen("stty size", "r");
		fscanf(p, "%d %d", &lines, &cols);
		close((int)p);
	}

	//calculate size
	int size = 40;
	size = min(lines,cols/zoom);
	size = ((size%2)==0?size-1:size); //make size odd
	//printf("%d\n", size);

	//empty canvas
	char cifernik[size*zoom][size];
	int i, x, y;
	double phi, r;
	for(y=0;y<size;y++) for(x=0;x<(size*zoom);x++) cifernik[x][y] = color_empty;

	//draw seconds hand
	//phi = -90+(s*(360/60));
	//int i;
	for(i=0;i<360;i+=28) {
		double inc=0;
		for(r=0;r<(size/2);r+=inc) {
			x = round((size/2+polar2x(a+i,r))*zoom);
			y = round(size/2+polar2y(a+i,r));
			cifernik[x][y] = color_s;
			a-=5;
			inc+=0.009;
		}
	}

	//draw center dot
	cifernik[(size/2)*zoom][size/2] = color_center;

	//cls when terminal size changes
	if(lines != llines || cols != lcols) {
		cls();
		llines=lines;
		lcols=cols;
	}

	//print to terminal
	printf("\033[0;0H");
	for(y=0;y<size;y++) {
		for(r=0;r<=((cols-(size*zoom))/2);r++) putchar(' ');
		for(x=0;x<((size*zoom)-(zoom-1));x++) {
			putchar(cifernik[x][y]);
		}
		if(y!=(size-1)) putchar('\n');
	}
}

int main(void) {
	int a = 0;

	while(1) {
			render_clock(a=(a+5)%360);
			usleep(100000);
	}
}
Commit	Line	Data
	1	/*
	2	* Compile with:
	3	* gcc -lm aclox.c -o aclox; ./aclox
	4	* or
	5	* CFLAGS='-lm' make aclox; ./aclox
	6	*/
	7
	8	#include <stdio.h>
	9	#include <stdlib.h>
	10	#include <unistd.h>
	11	#include <math.h>
	12	#include <time.h>
	13
	14	//config
	15	#define HOUR_NUMBERS 1
	16	#define HI_PRECISION 1
	17	#define SHOW_DIGITS 1
	18	#define MINUTE_DOTS 1
	19	#define SMOOTH_MOTION 1
	20	#define zoom 2
	21
	22	//useful macros
	23	#define max(a,b) ((a)>=(b)?(a):(b))
	24	#define min(a,b) ((a)<=(b)?(a):(b))
	25	#define PI 3.141592654
	26	#define deg2rad(a) (((a)/180)*PI)
	27	//phi = angle, r = length
	28	#define polar2x(phi, r) ((r) * cos(deg2rad(phi)))
	29	#define polar2y(phi, r) ((r) * sin(deg2rad(phi)))
	30	#define cls() printf("\033[2J")
	31	#define top() printf("\033[0;0H")
	32
	33	int llines = -1, lcols = -1;
	34	void render_clock(double a) {
	35	//colors
	36	char color_empty = ' ';
	37	char color_s = '*';
	38	char color_center = 'o';
	39
	40	//get size of terminal
	41	static int lines = -1;
	42	static int cols = -1;
	43	if(lines < 7 \|\| cols < 7) {
	44	FILE *p;
	45	p = popen("stty size", "r");
	46	fscanf(p, "%d %d", &lines, &cols);
	47	close((int)p);
	48	}
	49
	50	//calculate size
	51	int size = 40;
	52	size = min(lines,cols/zoom);
	53	size = ((size%2)==0?size-1:size); //make size odd
	54	//printf("%d\n", size);
	55
	56	//empty canvas
	57	char cifernik[size*zoom][size];
	58	int i, x, y;
	59	double phi, r;
	60	for(y=0;y<size;y++) for(x=0;x<(size*zoom);x++) cifernik[x][y] = color_empty;
	61
	62	//draw seconds hand
	63	//phi = -90+(s*(360/60));
	64	//int i;
	65	for(i=0;i<360;i+=28) {
	66	double inc=0;
	67	for(r=0;r<(size/2);r+=inc) {
	68	x = round((size/2+polar2x(a+i,r))*zoom);
	69	y = round(size/2+polar2y(a+i,r));
	70	cifernik[x][y] = color_s;
	71	a-=5;
	72	inc+=0.009;
	73	}
	74	}
	75
	76	//draw center dot
	77	cifernik[(size/2)*zoom][size/2] = color_center;
	78
	79	//cls when terminal size changes
	80	if(lines != llines \|\| cols != lcols) {
	81	cls();
	82	llines=lines;
	83	lcols=cols;
	84	}
	85
	86	//print to terminal
	87	printf("\033[0;0H");
	88	for(y=0;y<size;y++) {
	89	for(r=0;r<=((cols-(size*zoom))/2);r++) putchar(' ');
	90	for(x=0;x<((size*zoom)-(zoom-1));x++) {
	91	putchar(cifernik[x][y]);
	92	}
	93	if(y!=(size-1)) putchar('\n');
	94	}
	95	}
	96
	97	int main(void) {
	98	int a = 0;
	99
	100	while(1) {
	101	render_clock(a=(a+5)%360);
	102	usleep(100000);
	103	}
	104	}