gotoxy 연습 1

[qwd(115.40)]

 

 

#include <stdio.h>
#include <math.h>
#include <time.h>
#include <Windows.h>

#define half(n) floor(n+0.5)

#define scale 1
#define interval 0.1
#define g 9.8
#define pi 3.1416
#define RAD pi/180

void gotoxy(int x, int y);

double x(double t);
double y(double t);

double theta=60*RAD;
double v0=20;

void main()
{
 double t=0;

 while(true)
 {
  gotoxy(2*half(x(t)/scale), 24-half(y(t)/scale)); printf("*");

  time_t timer_prev = time(NULL);
  while(true)
  {
   time_t timer = time(NULL);
   if(timer>timer_prev+interval) { t += interval; break; }
  }
 
 }
}

double x(double t)
{ return v0*cos(theta)*t ; }

double y(double t)
{ return v0*sin(theta)*t - g*t*t/2; }

void gotoxy(int x, int y)
{
 COORD cursor;
 cursor.X = x;
 cursor.Y = y;
 SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),cursor);
}