From a470c304199866aa1f3d39ff22ec30734f03d617 Mon Sep 17 00:00:00 2001
From: justanothercatgirl <sotov@twistea.su>
Date: Fri, 6 Dec 2024 15:08:31 +0300
Subject: сделал 8 задание))))
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---
 7_2/src/figure.c | 139 -------------------------------------------------------
 1 file changed, 139 deletions(-)
 delete mode 100644 7_2/src/figure.c

(limited to '7_2/src/figure.c')

diff --git a/7_2/src/figure.c b/7_2/src/figure.c
deleted file mode 100644
index 290d4af..0000000
--- a/7_2/src/figure.c
+++ /dev/null
@@ -1,139 +0,0 @@
-
-#include "figure.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-
-void (*const draw_lookup[])(const struct figure *, struct drawable *) = {
-	[F_NONE] = NULL,
-	[F_POINT] = draw_point,
-	[F_RECT] = draw_rect,
-	[F_LINE] = draw_line,
-	[F_CIRCLE] = draw_circle
-};
-
-void swapl(long *x, long *y) {
-	long tmp = *x;
-	*x = *y;
-	*y = tmp;
-}
-
-struct figure figure_point(vector2 p) {
-	return (struct figure) {
-		.type = F_POINT,
-		.point.coords = p,
-		.draw = draw_point
-	};
-}
-
-struct figure figure_rect(vector2 upleft, vector2 downright) {
-	return (struct figure) {
-		.type = F_RECT,
-		.rect = {upleft, downright},
-		.draw = draw_rect
-	};
-}
-
-struct figure figure_line(vector2 start, vector2 end) {
-	return (struct figure) {
-		.type = F_LINE,
-		.line = {start, end},
-		.draw = draw_line
-	};
-}
-
-struct figure figure_circle(vector2 center, long radius) {
-	return (struct figure) {
-		.type = F_CIRCLE,
-		.circle = {center, radius},
-		.draw = draw_circle
-	};
-}
-
-
-void draw_point(const struct figure *self, struct drawable *d) {
-	d->put(d, self->point.coords.x, self->point.coords.y);
-}
-
-void draw_rect(const struct figure *self, struct drawable *d) {
-	vector2 upleft = self->rect.upleft;
-	vector2 downright = self->rect.downright;
-	for (long i = upleft.x; i < downright.x + 1; ++i) {
-		d->put(d, i, upleft.y);
-		d->put(d, i, downright.y);
-	} 
-	for (long j = upleft.y + 1; j < downright.y; ++j) {
-		d->put(d, upleft.x, j);
-		d->put(d, downright.x, j);
-	}
-}
-
-void draw_line(const struct figure *self, struct drawable *d) {
-	vector2 start = self->line.start;
-	vector2 end = self->line.end;
-	char gt45 = labs(end.y - start.y) > labs(end.x - start.x);
-	long x0 = start.x, y0 = start.y, 
-	       x1 = end.x, y1 = end.y;
-	if (gt45) {
-		swapl(&x0, &y0);
-		swapl(&x1, &y1);
-	}
-	if (x0 > x1) {
-		swapl(&x0, &x1);
-		swapl(&y0, &y1);
-	}
-	long dy = labs(y1-y0),
-	     dx = x1 - x0,
-	     err = dx >> 1, // *2
-	     yinc = (y1 > y0 ? 1 : -1);
-
-	for (long x = x0, y = y0; x <= x1; ++x) {
-		if (gt45) d->put(d, y, x);
-		else d->put(d, x, y);
-		err -= dy;
-		if (err < 0) {
-			y += yinc;
-			err += dx;
-		}
-	}
-}
-
-void draw_circle(const struct figure *self, struct drawable *f) {
-	const vector2 p = self->circle.center;
-	const long rad = self->circle.rad - 1;
-	const long pi4 = ceil(M_SQRT1_2 * rad);
-	long x0 = 0, y0 = rad;
-	do {
-		// выглядит коряво, зато в 8 раз меньше повторений цикла
-		f->put(f, p.x-x0, p.y-y0); // 3 четверть
-		f->put(f, p.x-x0, p.y+y0); // 2 чет.
-		f->put(f, p.x+x0, p.y-y0); // 4 ч.
-		f->put(f, p.x+x0, p.y+y0); // 1 ч
-		f->put(f, p.x-y0, p.y-x0); 
-		f->put(f, p.x-y0, p.y+x0);
-		f->put(f, p.x+y0, p.y-x0);
-		f->put(f, p.x+y0, p.y+x0);
-		++x0;
-		// вычисляем x^2 + (y+1/2)^2 - r^2
-		// раскрыли скобки и умножили на 4, чтобы не иметь дело 
-		// с дробными числами (они медленные)
-		long func = 4*x0*x0 + 4*y0*y0 - 4*y0 + 1 - 4*rad*rad;
-		y0 = (func >= 0 ? y0 - 1 : y0);
-	} while (x0 < pi4);
-}
-
-void print_figure(const struct figure *self) {
-	printf("figure {\n\t.type = %i\n\t{%li, %li},\n\t", self->type, self->line.start.x, self->line.start.y);
-	switch (self->type) {
-	case F_LINE:
-	case F_RECT:
-		printf("{%li, %li}\n\t", self->line.end.x, self->line.end.y);
-		break;
-	case F_CIRCLE:
-		printf("%li\n\t", self->circle.rad);
-		// fallthrough
-	case F_NONE:
-	case F_POINT:;		
-	}
-	printf(".draw = %p\n}\n", self->draw);
-}
-- 
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