add Duel.IsAbleToEnterBP

ocgcore/field.cpp

@@ -2148,3 +2148,8 @@ int32 field::check_chain_target(uint8 chaincount, card * pcard) {
 	pduel->lua->add_param(pcard, PARAM_TYPE_CARD);
 	return pduel->lua->check_condition(peffect->target, 10);
 }
+int32 field::is_able_to_enter_bp() {
+	return ((core.duel_options & DUEL_ATTACK_FIRST_TURN) || infos.turn_id != 1)
+	        && infos.phase < PHASE_BATTLE
+	        && !is_player_affected_by_effect(infos.turn_player, EFFECT_CANNOT_BP);
+}

ocgcore/field.h

@@ -406,6 +406,7 @@ public:
 	int32 is_chain_negatable(uint8 chaincount, uint8 naga_check = FALSE);
 	int32 is_chain_disablable(uint8 chaincount, uint8 naga_check = FALSE);
 	int32 check_chain_target(uint8 chaincount, card* pcard);
+	int32 is_able_to_enter_bp();
 
 	void add_process(uint16 type, uint16 step, effect* peffect, group* target, ptr arg1, ptr arg2);
 	int32 process();

ocgcore/interpreter.cpp

@@ -481,6 +481,7 @@ static const struct luaL_Reg duellib[] = {
 	{ "CheckPhaseActivity", scriptlib::duel_check_phase_activity },
 	{ "AddCustomActivityCounter", scriptlib::duel_add_custom_activity_counter },
 	{ "GetCustomActivityCount", scriptlib::duel_get_custom_activity_count },
+	{ "IsAbleToEnterBP", scriptlib::duel_is_able_to_enter_bp },
 	{ "VenomSwampCheck", scriptlib::duel_venom_swamp_check },
 	{ "SwapDeckAndGrave", scriptlib::duel_swap_deck_and_grave },
 	{ "MajesticCopy", scriptlib::duel_majestic_copy },

ocgcore/libduel.cpp

@@ -3175,6 +3175,11 @@ int32 scriptlib::duel_get_custom_activity_count(lua_State *L) {
 		lua_pushinteger(L, (val >> 16) & 0xffff);
 	return 1;
 }
+int32 scriptlib::duel_is_able_to_enter_bp(lua_State *L) {
+	duel* pduel = interpreter::get_duel_info(L);
+	lua_pushboolean(L, pduel->game_field->is_able_to_enter_bp());
+	return 1;
+}
 int32 scriptlib::duel_venom_swamp_check(lua_State *L) {
 	check_param_count(L, 2);
 	check_param(L, PARAM_TYPE_CARD, 2);

ocgcore/scriptlib.h

@@ -481,6 +481,7 @@ public:
 	static int32 duel_check_phase_activity(lua_State *L);
 	static int32 duel_add_custom_activity_counter(lua_State *L);
 	static int32 duel_get_custom_activity_count(lua_State *L);
+	static int32 duel_is_able_to_enter_bp(lua_State *L);
 	
 	//specific card functions
 	static int32 duel_venom_swamp_check(lua_State *L);