Document field_poison

include/constants/field_poison.h

@@ -0,0 +1,12 @@
+#ifndef GUARD_CONSTANTS_FIELD_POISON_H
+#define GUARD_CONSTANTS_FIELD_POISON_H
+
+#define FLDPSN_NONE  0
+#define FLDPSN_PSN   1
+#define FLDPSN_FNT   2
+
+#define FLDPSN_NO_WHITEOUT        0
+#define FLDPSN_WHITEOUT           1
+#define FLDPSN_FRONTIER_WHITEOUT  2
+
+#endif //GUARD_CONSTANTS_FIELD_POISON_H