scalling.cpp

#include<stdio.h>
#include<graphics.h>
#include<math.h>
int driver = DETECT, mode, width, height;
void drawCircle(int scaling_factor);
int main() {
    width  = getmaxwidth() - 100;
    height = getmaxheight() - 50;
    int scaling_factor;
    printf("what is your scaling factory (1-9): ");
    while(true){
        scanf("%d", &scaling_factor);
        if(scaling_factor >= 1 && scaling_factor <= 9){
            break;
        }
        printf("Can't take more than 9 and less than 1.\nInsert again: ");
    }
    drawCircle(scaling_factor);
    return 0;
}

void drawCircle(int scaling_factor){
    initgraph(&driver, &mode, "C:\\TC\\BIN");
    char title[600];
    sprintf(title, "Scaling with factory: %d", scaling_factor);
    initwindow(width, height, title, 50, 0);
    int circle_center_x = (int) floor(width / 5);
    int circle_center_y = (int) floor(height / 2);
    int circle_radius = 80;
    circle(circle_center_x, circle_center_y, circle_radius);

    int scaled_circle_center_x = (int) floor(((width - ( width / 5)) / 2));
    int scaled_circle_center_y = (int) floor(height / 2);
    int scaled_circle_radius = 80 * scaling_factor;
    circle(scaled_circle_center_x, scaled_circle_center_y, scaled_circle_radius);
    getch();
}