add Duel.IsCanAddCounter

interpreter.cpp

@@ -340,6 +340,7 @@ static const struct luaL_Reg duellib[] = {
 	{ "SpecialSummon", scriptlib::duel_special_summon },
 	{ "SpecialSummonStep", scriptlib::duel_special_summon_step },
 	{ "SpecialSummonComplete", scriptlib::duel_special_summon_complete },
+	{ "IsCanAddCounter", scriptlib::duel_is_can_add_counter },
 	{ "RemoveCounter", scriptlib::duel_remove_counter },
 	{ "IsCanRemoveCounter", scriptlib::duel_is_can_remove_counter },
 	{ "GetCounter", scriptlib::duel_get_counter },

libduel.cpp

@@ -490,6 +490,21 @@ int32 scriptlib::duel_get_operated_group(lua_State *L) {
 	interpreter::group2value(L, pgroup);
 	return 1;
 }
+int32 scriptlib::duel_is_can_add_counter(lua_State *L) {
+	check_param_count(L, 4);
+	int32 playerid = lua_tointeger(L, 1);
+	int32 countertype = lua_tointeger(L, 2);
+	int32 count = lua_tointeger(L, 3);
+	check_param(L, PARAM_TYPE_CARD, 4);
+	card* pcard = *(card**)lua_touserdata(L, 4);
+	if(playerid != 0 && playerid != 1) {
+		lua_pushboolean(L, 0);
+		return 1;
+	}
+	duel* pduel = interpreter::get_duel_info(L);
+	lua_pushboolean(L, pduel->game_field->is_player_can_place_counter(playerid, pcard, countertype, count));
+	return 1;
+}
 int32 scriptlib::duel_remove_counter(lua_State *L) {
 	check_action_permission(L);
 	check_param_count(L, 6);

scriptlib.h

@@ -336,6 +336,7 @@ public:
 	static int32 duel_sendto_deck(lua_State *L);
 	static int32 duel_sendto_extra(lua_State *L);
 	static int32 duel_get_operated_group(lua_State *L);
+	static int32 duel_is_can_add_counter(lua_State *L);
 	static int32 duel_remove_counter(lua_State *L);
 	static int32 duel_is_can_remove_counter(lua_State *L);
 	static int32 duel_get_counter(lua_State *L);