TP_13/exo2/lib/display.c

   1 /*
   2  * =====================================================================================
   3  *
   4  *       Filename:  display.c
   5  *
   6  *    Description:  Routines to handle the display
   7  *
   8  *        Version:  1.0
   9  *        Created:  15/03/2017 20:06:11
  10  *       Revision:  none
  11  *       Compiler:  gcc
  12  *
  13  *         Author:  Jerome Benoit (fraggle), jerome.benoit@piment-noir.org
  14  *   Organization:  Piment Noir
  15  *
  16  * =====================================================================================
  17  */
  18
  19 #include <ncurses.h>
  20
  21 #include "display.h"
  22
  23 /* in all print routine, y and x are the coordinates of the first character of the shape
  24  * which can be a space ' ' */
  25
  26 /* FIXME: one can split this shape in building blocks and build it using them */
  27 void print_board(int y, int x) {
  28
  29     mvprintw(y, x, "    |    |");
  30     mvprintw(y+1, x, "    |    |");
  31     mvprintw(y+2, x, "----+----+----");
  32     mvprintw(y+3, x, "    |    |");
  33     mvprintw(y+4, x, "    |    |");
  34     mvprintw(y+5, x, "----+----+----");
  35     mvprintw(y+6, x, "    |    |");
  36     mvprintw(y+7, x, "    |    |");
  37 }
  38
  39 /* there's only nine valid (y, x) 2-uplets for this two shapes
  40  * that are : - base_y, base_x +1
  41  *            - base_y, base_x + 6
  42  *            - base_y, base_x + 11
  43  *            - base_y + 3, base_x + 1
  44  *            - base_y + 6, base_x + 1
  45  *            - base_y + 3, base_x + 6
  46  *            - base_y + 3, base_x + 11
  47  *            - base_y + 6, base_x + 6
  48  *            - base_y + 6, base_x + 11
  49  * The added (y, x) couple values can be {0, 3, 6}x{1, 6, 11}
  50  */
  51
  52 static void print_x(int y, int x) {
  53
  54     mvprintw(y, x, "\\/");
  55     mvprintw(y+1, x,"/\\");
  56 }
  57
  58 static void print_o(int y, int x) {
  59
  60     mvprintw(y, x, "/\\");
  61     mvprintw(y+1, x, "\\/");
  62 }
  63
  64 /* y: 1 -> +0  x: 1 -> +1
  65  *    2 -> +3     2 -> +6
  66  *    3 -> +6     3 -> +11 */
  67 static int remap_y(int y) {
  68
  69     if (y == 1) {
  70         return 0;
  71     } else if (y > 1 && y <= 3) {
  72         return (remap_y(y - 1) + 3);
  73     }  else {
  74         return -1;
  75     }
  76 }
  77
  78 static int remap_x(int x) {
  79
  80     if (x == 1) {
  81         return 1;
  82     } else if (x > 1 && x <= 3) {
  83         return (remap_x(x - 1) + 5);
  84     } else {
  85         return -1;
  86     }
  87 }
  88
  89 void print_coordinates(coordinates_t coordinates_array[], int base_y, int base_x) {
  90     unsigned i = 0;
  91
  92     while ((coordinates_array + i)->y != 0 && (coordinates_array + i)->x != 0 && \
  93             i < MAX_COORDINATES) {
  94         if ((coordinates_array + i)->type == 0) {
  95             print_o(base_y + remap_y((coordinates_array + i)->y), base_x + remap_x((coordinates_array + i)->x));
  96         } else {
  97             print_x(base_y + remap_y((coordinates_array + i)->y), base_x + remap_x((coordinates_array + i)->x));
  98         }
  99         i++;
 100     }
 101 }