Introduce a front-end function to draw circles.

[sgt-puzzles.git] / puzzles.h

diff --git a/puzzles.h b/puzzles.h
index ecb574bbd6c1be53849637ea142da12628addbbe..ed1fef6896230ef54e5051df21cc8f1fccd3273c 100644 (file)
--- a/puzzles.h
+++ b/puzzles.h
@@ -43,6 +43,7 @@ enum {
     CURSOR_DOWN,
     CURSOR_LEFT,
     CURSOR_RIGHT,
+    CURSOR_SELECT,
     
     /* made smaller because of 'limited range of datatype' errors. */
     MOD_CTRL       = 0x1000,
@@ -73,6 +74,7 @@ typedef struct game_aux_info game_aux_info;
 typedef struct game_ui game_ui;
 typedef struct game_drawstate game_drawstate;
 typedef struct game game;
+typedef struct blitter blitter;
 
 #define ALIGN_VNORMAL 0x000
 #define ALIGN_VCENTRE 0x100
@@ -135,6 +137,8 @@ void draw_rect(frontend *fe, int x, int y, int w, int h, int colour);
 void draw_line(frontend *fe, int x1, int y1, int x2, int y2, int colour);
 void draw_polygon(frontend *fe, int *coords, int npoints,
                   int fill, int colour);
+void draw_circle(frontend *fe, int cx, int cy, int radius,
+                 int fill, int colour);
 void clip(frontend *fe, int x, int y, int w, int h);
 void unclip(frontend *fe);
 void start_draw(frontend *fe);
@@ -145,6 +149,16 @@ void activate_timer(frontend *fe);
 void status_bar(frontend *fe, char *text);
 void get_random_seed(void **randseed, int *randseedsize);
 
+blitter *blitter_new(int w, int h);
+void blitter_free(blitter *bl);
+/* save puts the portion of the current display with top-left corner
+ * (x,y) to the blitter. load puts it back again to the specified
+ * coords, or else wherever it was saved from
+ * (if x = y = BLITTER_FROMSAVED). */
+void blitter_save(frontend *fe, blitter *bl, int x, int y);
+#define BLITTER_FROMSAVED (-1)
+void blitter_load(frontend *fe, blitter *bl, int x, int y);
+
 /*
  * midend.c
  */
@@ -247,7 +261,8 @@ struct game {
     game_state *(*dup_game)(game_state *state);
     void (*free_game)(game_state *state);
     int can_solve;
-    game_state *(*solve)(game_state *state, game_aux_info *aux, char **error);
+    game_state *(*solve)(game_state *orig, game_state *curr,
+                        game_aux_info *aux, char **error);
     int can_format_as_text;
     char *(*text_format)(game_state *state);
     game_ui *(*new_ui)(game_state *state);