planarity/gameboard.h

   1 /*
   2  *
   3  *  gPlanarity:
   4  *     The geeky little puzzle game with a big noodly crunch!
   5  *
   6  *     gPlanarity copyright (C) 2005 Monty <monty@xiph.org>
   7  *     Original Flash game by John Tantalo <john.tantalo@case.edu>
   8  *     Original game concept by Mary Radcliffe
   9  *
  10  *  gPlanarity is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2, or (at your option)
  13  *  any later version.
  14  *
  15  *  gPlanarity is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with Postfish; see the file COPYING.  If not, write to the
  22  *  Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23  *
  24  *
  25  */
  26
  27 #include <glib.h>
  28 #include <glib-object.h>
  29 #include <gtk/gtk.h>
  30 #include <gdk/gdk.h>
  31 #include <time.h>
  32
  33 #include "nls.h"
  34
  35 #define V_RADIUS 8
  36 #define V_LINE 2
  37 #define V_LINE_COLOR         0, 0, 0
  38 #define V_FILL_IDLE_COLOR   .2,.2, 1
  39 #define V_FILL_LIT_COLOR     1, 1, 1
  40 #define V_FILL_ADJ_COLOR     1,.2,.2
  41
  42 #define E_LINE 1.5
  43 #define E_LINE_F_COLOR       0, 0, 0, 1
  44 #define E_LINE_B_COLOR      .5,.5,.5, 1
  45 #define SELECTBOX_COLOR     .2,.8,.8,.3
  46
  47 #define INTERSECTION_COLOR  1,.1,.1,.8
  48 #define INTERSECTION_RADIUS 10
  49 #define INTERSECTION_LINE_WIDTH 2
  50
  51 #define RESET_DELTA 2
  52 #define SCALE_DELTA 8
  53
  54 #define B_LINE 1
  55 #define B_BORDER 6.5
  56 #define B_RADIUS 20
  57 #define B_HUMP 130
  58 #define B_COLOR         .1,.1,.7,.1
  59 #define B_LINE_COLOR     0, 0,.7,.3
  60 #define TEXT_COLOR      .0,.0,.7,.6
  61 #define HIGH_COLOR      .7,.0,.0,.6
  62
  63 #define SCOREHEIGHT 50
  64
  65 #define ICON_WIDTH  160
  66 #define ICON_HEIGHT 120
  67
  68 #define FADE_FRAMES 50
  69 #define FADE_ANIM_INTERVAL 100
  70
  71 G_BEGIN_DECLS
  72
  73 #define GAMEBOARD_TYPE            (gameboard_get_type ())
  74 #define GAMEBOARD(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GAMEBOARD_TYPE, Gameboard))
  75 #define GAMEBOARD_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GAMEBOARD_TYPE, GameboardClass))
  76 #define IS_GAMEBOARD(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GAMEBOARD_TYPE))
  77 #define IS_GAMEBOARD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GAMEBOARD_TYPE))
  78
  79 typedef struct _Gameboard       Gameboard;
  80 typedef struct _GameboardClass  GameboardClass;
  81
  82 typedef struct fade_list{
  83   vertex *v;
  84   struct fade_list *next;
  85 } fade_list;
  86
  87 typedef struct {
  88   fade_list *head;
  89   int count;
  90   gint fade_timer;
  91 } fade_state;
  92
  93 #define NUMBUTTONS 11
  94
  95 typedef struct {
  96   int position; // 0 inactive
  97                 // 1 left
  98                 // 2 center
  99                 // 3 right
 100                 // negative indicates active but undeployed
 101   int x_target;
 102   int x;
 103
 104   int y_target;
 105   int y_inactive;
 106   int y_active;
 107   int y;
 108   int sweepdeploy;
 109
 110   int alphad;
 111   double alpha;
 112
 113   cairo_surface_t *idle;
 114   cairo_surface_t *lit;
 115
 116   char *rollovertext;
 117   cairo_text_extents_t ex;
 118
 119   int rollover;
 120   int press;
 121
 122   void (*callback)();
 123 } buttonstate;
 124
 125 typedef struct {
 126   buttonstate states[NUMBUTTONS];
 127   int buttons_ready;
 128   int allclear; // short-circuit hint
 129   int sweeper;
 130   int sweeperd;
 131   buttonstate *grabbed;
 132 } buttongroup;
 133
 134 typedef struct {
 135   int num;
 136   double alpha;
 137   cairo_surface_t *icon;
 138
 139   int x;
 140   int y;
 141   int w;
 142   int h;
 143
 144 } dialog_level_oneicon;
 145
 146 typedef struct {
 147
 148   dialog_level_oneicon level_icons[5];
 149   int center_x;
 150   int center_done;
 151   int level_lit;
 152   int reset_deployed;
 153
 154   GdkRectangle text1;
 155   GdkRectangle text2;
 156   GdkRectangle text3;
 157   GdkRectangle text4;
 158
 159   gint icon_timer; // used for buttons and icons
 160 } dialog_level_state;
 161
 162 struct _Gameboard{
 163   GtkWidget w;
 164
 165   graph g;
 166
 167   int pushed_curtain;
 168   void (*redraw_callback)(Gameboard *g);
 169
 170   cairo_surface_t *vertex;
 171   cairo_surface_t *vertex_lit;
 172   cairo_surface_t *vertex_grabbed;
 173   cairo_surface_t *vertex_attached;
 174   cairo_surface_t *vertex_sel;
 175   cairo_surface_t *vertex_ghost;
 176   cairo_surface_t *forescore;
 177   cairo_surface_t *forebutton;
 178   cairo_surface_t *background;
 179   cairo_surface_t *foreground;
 180   cairo_pattern_t *curtainp;
 181   cairo_surface_t *curtains;
 182
 183   int delayed_background;
 184   int first_expose;
 185   int hide_lines;
 186   int realtime_background;
 187   int show_intersections;
 188   int finish_dialog_active;
 189   int about_dialog_active;
 190   int pause_dialog_active;
 191   int level_dialog_active;
 192
 193   buttongroup b;
 194   dialog_level_state d;
 195   fade_state fade;
 196
 197   vertex *grabbed_vertex;
 198   vertex *lit_vertex;
 199   int group_drag;
 200   int button_grabbed;
 201
 202   int grabx;
 203   int graby;
 204   int dragx;
 205   int dragy;
 206   int graboffx;
 207   int graboffy;
 208
 209   int selection_grab;
 210   int selection_active;
 211   int selectionx;
 212   int selectiony;
 213   int selectionw;
 214   int selectionh;
 215
 216   int checkbutton_deployed;
 217   int buttonbar_sweeper;
 218
 219   gint button_timer; // used for buttons and icons
 220   void (*button_callback)(Gameboard *);
 221
 222   time_t resize_timeout; // watch for ignored resize events
 223   int    resize_w;       // watch for ignored resize events
 224   int    resize_h;       // watch for ignored resize events
 225 };
 226
 227 struct _GameboardClass{
 228   GtkWidgetClass parent_class;
 229   void (* gameboard) (Gameboard *m);
 230 };
 231
 232 GType          gameboard_get_type        (void);
 233 Gameboard*     gameboard_new             (void);
 234
 235 G_END_DECLS
 236
 237 extern void init_buttons(Gameboard *g);
 238 extern buttonstate *find_button(Gameboard *g,int x,int y);
 239 extern void button_set_state(Gameboard *g, buttonstate *b, int rollover, int press);
 240 extern void rollover_extents(Gameboard *g, buttonstate *b);
 241 extern gboolean animate_button_frame(gpointer ptr);
 242 extern void expose_buttons(Gameboard *g,cairo_t *c, int x,int y,int w,int h);
 243 extern void resize_buttons(Gameboard *g,int oldw,int oldh,int w,int h);
 244 extern void button_clear_state(Gameboard *g);
 245
 246 extern void update_push(Gameboard *g, cairo_t *c);
 247 extern void push_curtain(Gameboard *g,void(*redraw_callback)(Gameboard *g));
 248 extern void pop_curtain(Gameboard *g);
 249
 250 extern void prepare_reenter_game(Gameboard *g);
 251 extern void reenter_game(Gameboard *g);
 252 extern void enter_game(Gameboard *g);
 253 extern void quit_action(Gameboard *g);
 254 extern void finish_action(Gameboard *g);
 255 extern void expand_action(Gameboard *g);
 256 extern void shrink_action(Gameboard *g);
 257 extern void pause_action(Gameboard *g);
 258 extern void about_action(Gameboard *g);
 259 extern void level_action(Gameboard *g);
 260 extern void set_hide_lines(Gameboard *g, int state);
 261 extern void toggle_hide_lines(Gameboard *g);
 262 extern void set_show_intersections(Gameboard *g, int state);
 263 extern void toggle_show_intersections(Gameboard *g);
 264 extern void reset_action(Gameboard *g);
 265 extern int gameboard_write(char *basename, Gameboard *g);
 266 extern int gameboard_read(char *basename, Gameboard *g);
 267
 268 extern void topbox (Gameboard *g,cairo_t *c, double w, double h);
 269 extern void bottombox (Gameboard *g,cairo_t *c, double w, double h);
 270 extern void centerbox (cairo_t *c, int x, int y, double w, double h);
 271 extern void borderbox_path (cairo_t *c, double x, double y, double w, double h);
 272
 273 extern void setup_buttonbar(Gameboard *g);
 274 extern void deploy_buttonbar(Gameboard *g);
 275 extern void deploy_check(Gameboard *g);
 276 extern void undeploy_check(Gameboard *g);
 277
 278 extern void update_draw(Gameboard *g);
 279 extern void update_full(Gameboard *g);
 280 extern void expose_full(Gameboard *g);
 281 extern void update_full_delayed(Gameboard *g);
 282 extern void update_add_vertex(Gameboard *g, vertex *v);
 283 extern void update_add_selgroup(Gameboard *g);
 284 extern void gameboard_draw(Gameboard *g, int x, int y, int w, int h);
 285 extern void draw_foreground(Gameboard *g,cairo_t *c,
 286                             int x,int y,int width,int height);
 287 extern void draw_intersections(Gameboard *b,graph *g,cairo_t *c,
 288                                int x,int y,int w,int h);
 289
 290 extern void draw_score(Gameboard *g);
 291 extern void update_score(Gameboard *g);
 292
 293 extern void draw_vertex(cairo_t *c,vertex *v,cairo_surface_t *s);
 294 extern void draw_vertex_with_alpha(cairo_t *c,vertex *v,cairo_surface_t *s,float alpha);
 295 extern cairo_surface_t *cache_vertex(Gameboard *g);
 296 extern cairo_surface_t *cache_vertex_sel(Gameboard *g);
 297 extern cairo_surface_t *cache_vertex_grabbed(Gameboard *g);
 298 extern cairo_surface_t *cache_vertex_lit(Gameboard *g);
 299 extern cairo_surface_t *cache_vertex_attached(Gameboard *g);
 300 extern cairo_surface_t *cache_vertex_ghost(Gameboard *g);
 301 extern void invalidate_vertex_off(GtkWidget *widget, vertex *v, int dx, int dy);
 302 extern void invalidate_vertex(Gameboard *g, vertex *v);
 303 extern void invalidate_attached(GtkWidget *widget, vertex *v);
 304 extern void invalidate_edges(GtkWidget *widget, vertex *v, int offx, int offy);
 305 extern void draw_selection_rectangle(Gameboard *g,cairo_t *c);
 306 extern void invalidate_selection(GtkWidget *widget);
 307 extern void invalidate_verticies_selection(GtkWidget *widget);
 308
 309 extern void cache_curtain(Gameboard *g);
 310 extern void draw_curtain(Gameboard *g);
 311 extern void draw_buttonbar_box (Gameboard *g);
 312
 313 extern gint mouse_motion(GtkWidget *widget,GdkEventMotion *event);
 314 extern gboolean mouse_press (GtkWidget *widget,GdkEventButton *event);
 315 extern gboolean mouse_release (GtkWidget *widget,GdkEventButton *event);
 316
 317 extern void setup_background_edge(cairo_t *c);
 318 extern void setup_foreground_edge(cairo_t *c);
 319 extern void draw_edge(cairo_t *c,edge *e);
 320 extern void draw_edges(cairo_t *c, vertex *v, int offx, int offy);
 321 extern void finish_edge(cairo_t *c);
 322
 323 extern cairo_surface_t *gameboard_read_icon(char *filename, char *ext,Gameboard *b);
 324 extern int gameboard_write_icon(char *filename, char *ext,Gameboard *b, graph *g,
 325                                 int lines, int intersections);
 326 extern int gameboard_icon_exists(char *filename, char *ext);
 327
 328 extern void deploy_buttons(Gameboard *g, void (*callback)(Gameboard *));
 329 extern void undeploy_buttons(Gameboard *g, void (*callback)(Gameboard *));
 330
 331 extern GdkRectangle render_text_centered(cairo_t *c, char *s, int x, int y);
 332 extern GdkRectangle render_border_centered(cairo_t *c, char *s, int x, int y);
 333 extern GdkRectangle render_bordertext_centered(cairo_t *c, char *s, int x, int y);
 334
 335 extern void gameboard_size_allocate (GtkWidget     *widget,
 336                                      GtkAllocation *allocation);
 337
 338 extern void fade_cancel(Gameboard *g);
 339 extern void fade_attached(Gameboard *g,vertex *v);
 340 extern void fade_grabbed(Gameboard *g);
 341 extern void fade_marked(Gameboard *g);