[WIP] Port of Simon Tatham's Puzzle Collectionpuzzles

Original revision: 5123b1bf68777ffa86e651f178046b26a87cf2d9

MIT Licensed. Some games still crash and others are unplayable due to
issues with controls. Still need a "real" polygon filling algorithm.

The following games are at least partially broken for various reasons:

Cube:     crash with certain settings
Galaxies: crash
Inertia:  crash
Keen:     input issues
Loopy:    weird stuff happens
Map:      crash on input
Mines:    weird stuff happens on target
Palisade: input issues
Signpost: crash on input
Solo:     input issues
Towers:   input and drawing issues
Train Tracks: drawing issues
Twiddle:  weird animation on target
Undead:   input and drawing issues
Unequal:  input and drawing issues
Untangle: input issues

All in all, about 40% of the games are at least partially broken.

Change-Id: I7c69b6860ab115f973c8d76799502e9bb3d52368

1 files changed, 303 insertions, 0 deletions

diff --git a/apps/plugins/puzzles/nullgame.c b/apps/plugins/puzzles/nullgame.c
new file mode 100644
index 0000000..6e14c32
--- /dev/null
+++ b/apps/plugins/puzzles/nullgame.c
@@ -0,0 +1,303 @@
+/*
+ * nullgame.c [FIXME]: Template defining the null game (in which no
+ * moves are permitted and nothing is ever drawn). This file exists
+ * solely as a basis for constructing new game definitions - it
+ * helps to have something which will compile from the word go and
+ * merely doesn't _do_ very much yet.
+ * 
+ * Parts labelled FIXME actually want _removing_ (e.g. the dummy
+ * field in each of the required data structures, and this entire
+ * comment itself) when converting this source file into one
+ * describing a real game.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "rbassert.h"
+#include <ctype.h>
+#include <math.h>
+
+#include "puzzles.h"
+
+enum {
+    COL_BACKGROUND,
+    NCOLOURS
+};
+
+struct game_params {
+    int FIXME;
+};
+
+struct game_state {
+    int FIXME;
+};
+
+static game_params *default_params(void)
+{
+    game_params *ret = snew(game_params);
+
+    ret->FIXME = 0;
+
+    return ret;
+}
+
+static int game_fetch_preset(int i, char **name, game_params **params)
+{
+    return FALSE;
+}
+
+static void free_params(game_params *params)
+{
+    sfree(params);
+}
+
+static game_params *dup_params(const game_params *params)
+{
+    game_params *ret = snew(game_params);
+    *ret = *params;		       /* structure copy */
+    return ret;
+}
+
+static void decode_params(game_params *params, char const *string)
+{
+}
+
+static char *encode_params(const game_params *params, int full)
+{
+    return dupstr("FIXME");
+}
+
+static config_item *game_configure(const game_params *params)
+{
+    return NULL;
+}
+
+static game_params *custom_params(const config_item *cfg)
+{
+    return NULL;
+}
+
+static char *validate_params(const game_params *params, int full)
+{
+    return NULL;
+}
+
+static char *new_game_desc(const game_params *params, random_state *rs,
+			   char **aux, int interactive)
+{
+    return dupstr("FIXME");
+}
+
+static char *validate_desc(const game_params *params, const char *desc)
+{
+    return NULL;
+}
+
+static game_state *new_game(midend *me, const game_params *params,
+                            const char *desc)
+{
+    game_state *state = snew(game_state);
+
+    state->FIXME = 0;
+
+    return state;
+}
+
+static game_state *dup_game(const game_state *state)
+{
+    game_state *ret = snew(game_state);
+
+    ret->FIXME = state->FIXME;
+
+    return ret;
+}
+
+static void free_game(game_state *state)
+{
+    sfree(state);
+}
+
+static char *solve_game(const game_state *state, const game_state *currstate,
+                        const char *aux, char **error)
+{
+    return NULL;
+}
+
+static int game_can_format_as_text_now(const game_params *params)
+{
+    return TRUE;
+}
+
+static char *game_text_format(const game_state *state)
+{
+    return NULL;
+}
+
+static game_ui *new_ui(const game_state *state)
+{
+    return NULL;
+}
+
+static void free_ui(game_ui *ui)
+{
+}
+
+static char *encode_ui(const game_ui *ui)
+{
+    return NULL;
+}
+
+static void decode_ui(game_ui *ui, const char *encoding)
+{
+}
+
+static void game_changed_state(game_ui *ui, const game_state *oldstate,
+                               const game_state *newstate)
+{
+}
+
+struct game_drawstate {
+    int tilesize;
+    int FIXME;
+};
+
+static char *interpret_move(const game_state *state, game_ui *ui,
+                            const game_drawstate *ds,
+                            int x, int y, int button)
+{
+    return NULL;
+}
+
+static game_state *execute_move(const game_state *state, const char *move)
+{
+    return NULL;
+}
+
+/* ----------------------------------------------------------------------
+ * Drawing routines.
+ */
+
+static void game_compute_size(const game_params *params, int tilesize,
+                              int *x, int *y)
+{
+    *x = *y = 10 * tilesize;	       /* FIXME */
+}
+
+static void game_set_size(drawing *dr, game_drawstate *ds,
+                          const game_params *params, int tilesize)
+{
+    ds->tilesize = tilesize;
+}
+
+static float *game_colours(frontend *fe, int *ncolours)
+{
+    float *ret = snewn(3 * NCOLOURS, float);
+
+    frontend_default_colour(fe, &ret[COL_BACKGROUND * 3]);
+
+    *ncolours = NCOLOURS;
+    return ret;
+}
+
+static game_drawstate *game_new_drawstate(drawing *dr, const game_state *state)
+{
+    struct game_drawstate *ds = snew(struct game_drawstate);
+
+    ds->tilesize = 0;
+    ds->FIXME = 0;
+
+    return ds;
+}
+
+static void game_free_drawstate(drawing *dr, game_drawstate *ds)
+{
+    sfree(ds);
+}
+
+static void game_redraw(drawing *dr, game_drawstate *ds,
+                        const game_state *oldstate, const game_state *state,
+                        int dir, const game_ui *ui,
+                        float animtime, float flashtime)
+{
+    /*
+     * The initial contents of the window are not guaranteed and
+     * can vary with front ends. To be on the safe side, all games
+     * should start by drawing a big background-colour rectangle
+     * covering the whole window.
+     */
+    draw_rect(dr, 0, 0, 10*ds->tilesize, 10*ds->tilesize, COL_BACKGROUND);
+    draw_update(dr, 0, 0, 10*ds->tilesize, 10*ds->tilesize);
+}
+
+static float game_anim_length(const game_state *oldstate,
+                              const game_state *newstate, int dir, game_ui *ui)
+{
+    return 0.0F;
+}
+
+static float game_flash_length(const game_state *oldstate,
+                               const game_state *newstate, int dir, game_ui *ui)
+{
+    return 0.0F;
+}
+
+static int game_status(const game_state *state)
+{
+    return 0;
+}
+
+static int game_timing_state(const game_state *state, game_ui *ui)
+{
+    return TRUE;
+}
+
+static void game_print_size(const game_params *params, float *x, float *y)
+{
+}
+
+static void game_print(drawing *dr, const game_state *state, int tilesize)
+{
+}
+
+#ifdef COMBINED
+#define thegame nullgame
+#endif
+
+const struct game thegame = {
+    "Null Game", NULL, NULL,
+    default_params,
+    game_fetch_preset,
+    decode_params,
+    encode_params,
+    free_params,
+    dup_params,
+    FALSE, game_configure, custom_params,
+    validate_params,
+    new_game_desc,
+    validate_desc,
+    new_game,
+    dup_game,
+    free_game,
+    FALSE, solve_game,
+    FALSE, game_can_format_as_text_now, game_text_format,
+    new_ui,
+    free_ui,
+    encode_ui,
+    decode_ui,
+    game_changed_state,
+    interpret_move,
+    execute_move,
+    20 /* FIXME */, game_compute_size, game_set_size,
+    game_colours,
+    game_new_drawstate,
+    game_free_drawstate,
+    game_redraw,
+    game_anim_length,
+    game_flash_length,
+    game_status,
+    FALSE, FALSE, game_print_size, game_print,
+    FALSE,			       /* wants_statusbar */
+    FALSE, game_timing_state,
+    0,				       /* flags */
+};