mdw@git.distorted.org.uk Git - sgt/puzzles/blob - nullgame.c

   1 /*
   2  * nullgame.c [FIXME]: Template defining the null game (in which no
   3  * moves are permitted and nothing is ever drawn). This file exists
   4  * solely as a basis for constructing new game definitions - it
   5  * helps to have something which will compile from the word go and
   6  * merely doesn't _do_ very much yet.
   7  *
   8  * Parts labelled FIXME actually want _removing_ (e.g. the dummy
   9  * field in each of the required data structures, and this entire
  10  * comment itself) when converting this source file into one
  11  * describing a real game.
  12  */
  13
  14 #include <stdio.h>
  15 #include <stdlib.h>
  16 #include <string.h>
  17 #include <assert.h>
  18 #include <ctype.h>
  19 #include <math.h>
  20
  21 #include "puzzles.h"
  22
  23 const char *const game_name = "Null Game";
  24 const char *const game_winhelp_topic = NULL;
  25 const int game_can_configure = FALSE;
  26
  27 enum {
  28     COL_BACKGROUND,
  29     NCOLOURS
  30 };
  31
  32 struct game_params {
  33     int FIXME;
  34 };
  35
  36 struct game_state {
  37     int FIXME;
  38 };
  39
  40 game_params *default_params(void)
  41 {
  42     game_params *ret = snew(game_params);
  43
  44     ret->FIXME = 0;
  45
  46     return ret;
  47 }
  48
  49 int game_fetch_preset(int i, char **name, game_params **params)
  50 {
  51     return FALSE;
  52 }
  53
  54 void free_params(game_params *params)
  55 {
  56     sfree(params);
  57 }
  58
  59 game_params *dup_params(game_params *params)
  60 {
  61     game_params *ret = snew(game_params);
  62     *ret = *params;                    /* structure copy */
  63     return ret;
  64 }
  65
  66 game_params *decode_params(char const *string)
  67 {
  68     game_params *ret = snew(game_params);
  69
  70     ret->FIXME = 0;
  71
  72     return ret;
  73 }
  74
  75 char *encode_params(game_params *params)
  76 {
  77     return dupstr("FIXME");
  78 }
  79
  80 config_item *game_configure(game_params *params)
  81 {
  82     return NULL;
  83 }
  84
  85 game_params *custom_params(config_item *cfg)
  86 {
  87     return NULL;
  88 }
  89
  90 char *validate_params(game_params *params)
  91 {
  92     return NULL;
  93 }
  94
  95 char *new_game_seed(game_params *params, random_state *rs)
  96 {
  97     return dupstr("FIXME");
  98 }
  99
 100 char *validate_seed(game_params *params, char *seed)
 101 {
 102     return NULL;
 103 }
 104
 105 game_state *new_game(game_params *params, char *seed)
 106 {
 107     game_state *state = snew(game_state);
 108
 109     state->FIXME = 0;
 110
 111     return state;
 112 }
 113
 114 game_state *dup_game(game_state *state)
 115 {
 116     game_state *ret = snew(game_state);
 117
 118     ret->FIXME = state->FIXME;
 119
 120     return ret;
 121 }
 122
 123 void free_game(game_state *state)
 124 {
 125     sfree(state);
 126 }
 127
 128 game_ui *new_ui(game_state *state)
 129 {
 130     return NULL;
 131 }
 132
 133 void free_ui(game_ui *ui)
 134 {
 135 }
 136
 137 game_state *make_move(game_state *from, game_ui *ui, int x, int y, int button)
 138 {
 139     return NULL;
 140 }
 141
 142 /* ----------------------------------------------------------------------
 143  * Drawing routines.
 144  */
 145
 146 struct game_drawstate {
 147     int FIXME;
 148 };
 149
 150 void game_size(game_params *params, int *x, int *y)
 151 {
 152     *x = *y = 200;                     /* FIXME */
 153 }
 154
 155 float *game_colours(frontend *fe, game_state *state, int *ncolours)
 156 {
 157     float *ret = snewn(3 * NCOLOURS, float);
 158
 159     frontend_default_colour(fe, &ret[COL_BACKGROUND * 3]);
 160
 161     *ncolours = NCOLOURS;
 162     return ret;
 163 }
 164
 165 game_drawstate *game_new_drawstate(game_state *state)
 166 {
 167     struct game_drawstate *ds = snew(struct game_drawstate);
 168
 169     ds->FIXME = 0;
 170
 171     return ds;
 172 }
 173
 174 void game_free_drawstate(game_drawstate *ds)
 175 {
 176     sfree(ds);
 177 }
 178
 179 void game_redraw(frontend *fe, game_drawstate *ds, game_state *oldstate,
 180                  game_state *state, game_ui *ui,
 181                  float animtime, float flashtime)
 182 {
 183     /*
 184      * The initial contents of the window are not guaranteed and
 185      * can vary with front ends. To be on the safe side, all games
 186      * should start by drawing a big background-colour rectangle
 187      * covering the whole window.
 188      */
 189     draw_rect(fe, 0, 0, 200, 200, COL_BACKGROUND);
 190 }
 191
 192 float game_anim_length(game_state *oldstate, game_state *newstate)
 193 {
 194     return 0.0F;
 195 }
 196
 197 float game_flash_length(game_state *oldstate, game_state *newstate)
 198 {
 199     return 0.0F;
 200 }
 201
 202 int game_wants_statusbar(void)
 203 {
 204     return FALSE;
 205 }