1 files changed, 105 insertions, 0 deletions
diff --git a/src/flip.c b/src/flip.c
new file mode 100644
index 0000000..3ab50d5
--- /dev/null
+++ b/src/flip.c
@@ -0,0 +1,105 @@
+/*
+** flip.c for  in /home/gayot_o/prog/minesweeper
+** 
+** Made by olivier gayot
+** Login   <gayot_o@epitech.net>
+** 
+** Started on  Sun Apr 22 17:49:25 2012 olivier gayot
+** Last update Sun Apr 22 17:49:25 2012 olivier gayot
+*/
+
+#include	"minesweeper.h"
+
+static int	get_flag_touch(case_t tab[BLOCK_H][BLOCK_W], int j, int i);
+static int	rec(case_t map[BLOCK_H][BLOCK_W], int j, int i);
+static int	flip_around(case_t tab[BLOCK_H][BLOCK_W], int j, int i);
+
+int		flip(map_t *map, int *selection) {
+  case_t		*case_ = &map->tab[*selection / BLOCK_W][*selection % BLOCK_W];
+  int		ret;
+
+  if (!case_->hidden && get_flag_touch(map->tab,
+	*selection / BLOCK_W, *selection % BLOCK_W) == case_->touch)
+    ret = flip_around(map->tab, *selection / BLOCK_W, *selection % BLOCK_W);
+  else
+    ret = rec(map->tab, *selection / BLOCK_W, *selection % BLOCK_W);
+  show_map(map);
+  return ret;
+}
+
+static int	rec(case_t tab[BLOCK_H][BLOCK_W], int j, int i) {
+  case_t		*case_ = &tab[j][i];
+
+  if (!case_->hidden || case_->flagged)
+    return 0;
+  case_->hidden = false;
+  if (!case_->type)
+    ++discovered;
+  if (case_->type)
+    return -1;
+  if (case_->touch == 0) {
+    {
+      if (j + 1 < BLOCK_H && i + 1 < BLOCK_W)
+	rec(tab, j + 1, i + 1);
+      if (j + 1 < BLOCK_H)
+	rec(tab, j + 1, i);
+      if (j + 1 < BLOCK_H && i - 1 >= 0)
+	rec(tab, j + 1, i - 1);
+      if (j - 1 >= 0 && i + 1 < BLOCK_W)
+	rec(tab, j - 1, i + 1);
+      if (j - 1 >= 0)
+	rec(tab, j - 1, i);
+      if (j - 1 >= 0 && i - 1 >= 0)
+	rec(tab, j - 1, i - 1);
+      if (i - 1 >= 0)
+	rec(tab, j, i - 1);
+      if (i + 1 < BLOCK_W)
+	rec(tab, j, i + 1);
+    }
+  }
+  return 0;
+}
+
+static int	get_flag_touch(case_t tab[BLOCK_H][BLOCK_W], int j, int i) {
+  int		flags = 0;
+
+  if (j + 1 < BLOCK_H && i + 1 < BLOCK_W && tab[j + 1][i + 1].flagged)
+    ++flags;
+  if (j + 1 < BLOCK_H && tab[j + 1][i].flagged)
+    ++flags;
+  if (j + 1 < BLOCK_H && i - 1 >= 0 && tab[j + 1][i - 1].flagged)
+    ++flags;
+  if (j - 1 >= 0 && i + 1 < BLOCK_W&& tab[j - 1][i + 1].flagged)
+    ++flags;
+  if (j - 1 >= 0 && tab[j - 1][i].flagged)
+    ++flags;
+  if (j - 1 >= 0 && i - 1 >= 0 && tab[j - 1][i - 1].flagged)
+    ++flags;
+  if (i - 1 >= 0 && tab[j][i - 1].flagged)
+    ++flags;
+  if (i + 1 < BLOCK_W && tab[j][i + 1].flagged)
+    ++flags;
+  return flags;
+}
+
+static int	flip_around(case_t tab[BLOCK_H][BLOCK_W], int j, int i) {
+  int		ret = 0;
+
+  if (j + 1 < BLOCK_H && i + 1 < BLOCK_W)
+    if (rec(tab, j + 1, i + 1) == -1) ret = -1;
+  if (j + 1 < BLOCK_H)
+    if (rec(tab, j + 1, i) == -1) ret = -1;
+  if (j + 1 < BLOCK_H && i - 1 >= 0)
+    if (rec(tab, j + 1, i - 1) == -1) ret = -1;
+  if (j - 1 >= 0 && i + 1 < BLOCK_W)
+    if (rec(tab, j - 1, i + 1) == -1) ret = -1;
+  if (j - 1 >= 0)
+    if (rec(tab, j - 1, i) == -1) ret = -1;
+  if (j - 1 >= 0 && i - 1 >= 0)
+    if (rec(tab, j - 1, i - 1) == -1) ret = -1;
+  if (i - 1 >= 0)
+    if (rec(tab, j, i - 1) == -1) ret = -1;
+  if (i + 1 < BLOCK_W)
+    if (rec(tab, j, i + 1) == -1) ret = -1;
+  return ret;
+}