ncursesを使った遊び(文字でアニメーション)

ncurses_animation.c

#include <stdio.h>
#include <math.h>
#include <ncurses.h>

#define MOJI ">>WAIT>-> >"
#define YOKOHABA 73
#define HAYASA 0.015
#define SA 2

int main()
{
  double asobi[9];
  int i;

  int cnt=0, rollflag=0;
  double r=0, g=0, b=0;
  int rflag=0, gflag=0, bflag=0;

  initscr();
  curs_set(0);
  cbreak();
  noecho();
  cbreak();
  start_color();

  init_color(COLOR_BLUE, 443, 470, 1000);
  init_pair(1, COLOR_BLUE, COLOR_BLACK);
  init_pair(2, COLOR_RED, COLOR_BLACK);
  
  for (i=0; i<9; i++) {
    asobi[i] = i * SA;
  }

  while (1) {

    clear();
    attron(COLOR_PAIR(1));
    mvaddstr( 0, 0, "|> waiting for oppornent.");
    mvaddstr( 1, 0, "|> please stand by");

    switch (rollflag) {
    case 0:
      mvaddstr(1,18, "");
      break;
    case 1:
      mvaddstr(1,18, ".");
      break;
    case 2:
      mvaddstr(1,18, "..");      
      break;
    case 3:
      mvaddstr(1,18, "...");
      break;
    }
      
    if (cnt < 1000) {
      mvaddstr(1,30, "|");
    } else if (1000 <= cnt && cnt < 2000) {
      mvaddstr(1,30, "\\");
    } else if (2000 <= cnt && cnt < 3000) {
      mvaddstr(1,30, "-");
    } else if (3000 <= cnt) {
      mvaddstr(1,30, "/");
    }
    cnt++;
    cnt %= 4000;
    if (cnt == 0) {
      rollflag++;
      rollflag %= 4;
    } 
    
    init_color(COLOR_RED, (int)r, (int)g, (int)b);
    attron(COLOR_PAIR(2));
    
    for (i=0; i<9; i++) {
      mvaddstr( 4+i, (int)asobi[i], MOJI);
      mvaddstr(20-i, (int)asobi[i], MOJI);
      asobi[i] += HAYASA;
      asobi[i] = fmod(asobi[i], YOKOHABA);
    }
    
    if (r >= 1000) rflag = 1; else if (r <= 0) rflag = 0;
    if (g >= 1000) gflag = 1; else if (g <= 0) gflag = 0;
    if (b >= 1000) bflag = 1; else if (b <= 0) bflag = 0;
  
    if (rflag == 0) r += 0.125; else r -= 0.5;
    if (gflag == 0) g += 0.25;  else g -= 0.125;
    if (bflag == 0) b += 0.3;   else b -= 0.25;
    
    //  attroff(COLOR_PAIR(1));
    refresh();

  }
  
  endwin();
  
  return 0;
}