'Train who?' show skill points and disallow pcs w/ 0

src/game/boe.dlgutil.cpp

@@ -989,7 +989,7 @@ void handle_talk_node(int which_talk_entry, bool is_redo) {
 			save_talk_str1 = "You conclude your training.";
 			save_talk_str2 = "";
 			can_save_talk = false;
-			if((get_pc = select_pc(eSelectPC::ONLY_LIVING,"Train who?")) < 6) {
+			if((get_pc = select_pc(eSelectPC::ONLY_CAN_TRAIN,"Train who?")) < 6) {
 				spend_xp(get_pc,1, nullptr);
 			}
 			goto RECORD_WHICH_NODE;

src/game/boe.items.cpp

@@ -978,6 +978,16 @@ short select_pc(eSelectPC mode, std::string title, eSkill highlight_highest, boo
 					can_pick = false;
 					extra_info = "no item slot";
 				}
+				if(false) // Skip fallthrough past ONLY_CAN_TRAIN
+				BOOST_FALLTHROUGH;
+			case eSelectPC::ONLY_CAN_TRAIN:
+				if(univ.party[i].skill_pts){
+					extra_info = std::to_string(univ.party[i].skill_pts) + " skill point";
+					if(univ.party[i].skill_pts > 1) extra_info += "s";
+				}else{
+					extra_info = "no skill points";
+					can_pick = false;
+				}
 				BOOST_FALLTHROUGH;
 			case eSelectPC::ONLY_LIVING:
 				if(univ.party[i].main_status != eMainStatus::ALIVE)
@@ -1043,6 +1053,10 @@ short select_pc(eSelectPC mode, std::string title, eSkill highlight_highest, boo
 			ASB("  No one has lockpicks equipped.");
 			print_buf();
 		}
+		if(mode == eSelectPC::ONLY_CAN_TRAIN){
+			ASB("  No one has skill points.");
+			print_buf();
+		}
 		return 8;
 	}
 

src/game/boe.items.hpp

@@ -52,6 +52,8 @@ enum class eSelectPC {
 	ONLY_CAN_GIVE_FROM_ACTIVE,
 	// Must have lockpicks equipped
 	ONLY_CAN_LOCKPICK,
+	// Must have skill points
+	ONLY_CAN_TRAIN,
 	ONLY_DEAD,
 };
 // Prompt the player to choose a party member. Returns 0-5 for a pc, 6 for cancel, 7 for all, or 8 if no PCs fit the mode's filter.