apps/invaders/main.c

   1 /*
   2  *  ZeX/OS
   3  *  Copyright (C) 2007  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   4  *  Copyright (C) 2008  Tomas 'ZeXx86' Jedrzejek (zexx86@gmail.com)
   5  *
   6  *  This program is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #include <stdio.h>
  22 #include <string.h>
  23 #include <stdlib.h>
  24
  25 #define         ESC                             1
  26 #define         ARROWLEFT                       75
  27 #define         ARROWRIGHT                      77
  28 #define         ARROWUP                         72
  29 #define         ARROWDOWN                       80
  30
  31 typedef struct {
  32         unsigned char x, y;
  33         unsigned char znak;
  34         unsigned char live;
  35         unsigned char zmena;
  36 } CLOVEK;
  37
  38 CLOVEK mujhrac;
  39
  40 #define PLOCHA_X        80
  41 #define PLOCHA_Y        25
  42
  43 unsigned key_pressed (int keycode)
  44 {
  45         int scancode = getkey ();
  46
  47         if (scancode == keycode)
  48                 return 1;
  49
  50         if (scancode == keycode+128)
  51                 return 2;
  52         else
  53                 return 0;
  54 }
  55
  56 int main (int argc, char **argv)
  57 {
  58         cls ();
  59
  60         printf ("This program is marked as pre-alpha !\n");
  61
  62         mujhrac.x = 0;
  63         mujhrac.y = 1;
  64         mujhrac.znak = '#';
  65         mujhrac.zmena = 1;
  66
  67         while (1) {
  68                 int scancode = getkey ();
  69
  70                 if (scancode == ESC)
  71                         break;
  72
  73                 if (scancode == ARROWLEFT && mujhrac.x > 0) {
  74                         gotoxy (mujhrac.x, mujhrac.y);
  75                         putch (' ');
  76                         mujhrac.x --;
  77                         mujhrac.zmena = 1;
  78                 }
  79                 if (scancode == ARROWRIGHT && mujhrac.x < PLOCHA_X-1) {
  80                         gotoxy (mujhrac.x, mujhrac.y);
  81                         putch (' ');
  82                         mujhrac.x ++;
  83                         mujhrac.zmena = 1;
  84                 }
  85                 if (scancode == ARROWUP && mujhrac.y > 0) {
  86                         gotoxy (mujhrac.x, mujhrac.y);
  87                         putch (' ');
  88                         mujhrac.y --;
  89                         mujhrac.zmena = 1;
  90                 }
  91                 if (scancode == ARROWDOWN && mujhrac.y < PLOCHA_Y) {
  92                         gotoxy (mujhrac.x, mujhrac.y);
  93                         putch (' ');
  94                         mujhrac.y ++;
  95                         mujhrac.zmena = 1;
  96                 }
  97
  98                 if (mujhrac.zmena) {
  99                         gotoxy (mujhrac.x, mujhrac.y);
 100                         putch (mujhrac.znak);
 101                         mujhrac.zmena = 0;
 102                 }
 103         }
 104
 105         printf ("\nInvaders are coming !\n");
 106
 107         return 0;
 108 }