[Tasks] Implement alternate currency rewards (#2827)

* Reward currency on task completion

* Handle reward window

* Tweaks

common/eq_constants.h

@@ -1028,4 +1028,7 @@ enum ZoningMessage : int8
 	ZoneNoExperience = -7
 };
 
+#define ALT_CURRENCY_ID_RADIANT 4
+#define ALT_CURRENCY_ID_EBON 5
+
 #endif /*COMMON_EQ_CONSTANTS_H*/

zone/task_client_state.cpp

@@ -1072,6 +1072,16 @@ void ClientTaskState::RewardTask(Client *c, const TaskInformation *ti, ClientTas
 			c->AddCrystals(ti->reward_points, 0);
 		} else if (ti->reward_point_type == static_cast<int32_t>(zone->GetCurrencyID(EBON_CRYSTAL))) {
 			c->AddCrystals(0, ti->reward_points);
+		} else {
+			for (const auto& ac : zone->AlternateCurrencies) {
+				if (ti->reward_point_type == ac.id) {
+					const EQ::ItemData *item = database.GetItem(ac.item_id);
+					if (item) {
+						c->AddAlternateCurrencyValue(ti->reward_point_type, ti->reward_points);
+						c->Message(Chat::Yellow, fmt::format("You have received ({}) {}!", ti->reward_points, item->Name).c_str());
+					}
+				}
+			}
 		}
 	}
 }

zone/task_manager.cpp

@@ -1154,6 +1154,10 @@ void TaskManager::SendActiveTaskDescription(
 						+ sizeof(TaskDescriptionData1_Struct) + t->description.length() + 1
 						+ sizeof(TaskDescriptionData2_Struct) + 1 + sizeof(TaskDescriptionTrailer_Struct);
 
+	std::string reward = t->reward;
+	bool is_don_reward = (t->reward_point_type == ALT_CURRENCY_ID_RADIANT ||
+						  t->reward_point_type == ALT_CURRENCY_ID_EBON);
+
 	// If there is an item make the reward text into a link to the item (only the first item if a list
 	// is specified). I have been unable to get multiple item links to work.
 	//
@@ -1173,7 +1177,34 @@ void TaskManager::SendActiveTaskDescription(
 		}
 	}
 
-	packet_length += t->reward.length() + 1 + t->item_link.length() + 1;
+	// display alternate currency in reward window manually
+	// there may be a more formal packet structure for displaying this but this is what it is for
+	// now to have bare minimum support
+	if (t->reward_point_type > 0 && t->reward_points > 0 && !is_don_reward) {
+		for (const auto& ac : zone->AlternateCurrencies) {
+			if (t->reward_point_type == ac.id) {
+				const EQ::ItemData *item = database.GetItem(ac.item_id);
+				if (item) {
+					std::string currency_description = fmt::format(
+						"{} ({})",
+						item->Name,
+						t->reward_points
+					);
+
+					reward = currency_description;
+
+					EQ::SayLinkEngine l;
+					l.SetLinkType(EQ::saylink::SayLinkItemData);
+					l.SetItemData(item);
+					l.SetTaskUse();
+					l.SetProxyText(currency_description.c_str());
+					t->item_link = l.GenerateLink();
+				}
+			}
+		}
+	}
+
+	packet_length += reward.length() + 1 + t->item_link.length() + 1;
 
 	char                          *Ptr;
 	TaskDescriptionHeader_Struct  *task_description_header;
@@ -1190,7 +1221,7 @@ void TaskManager::SendActiveTaskDescription(
 	task_description_header->open_window    = bring_up_task_journal;
 	task_description_header->task_type      = static_cast<uint32>(t->type);
 
-	task_description_header->reward_type = t->reward_point_type;
+	task_description_header->reward_type = is_don_reward ? t->reward_point_type : 0;
 
 	Ptr = (char *) task_description_header + sizeof(TaskDescriptionHeader_Struct);
 
@@ -1224,16 +1255,17 @@ void TaskManager::SendActiveTaskDescription(
 
 	// we actually have 2 strings here. One is max length 96 and not parsed for item links
 	// We actually skipped past that string incorrectly before, so TODO: fix item link string
-	sprintf(Ptr, "%s", t->reward.c_str());
+	sprintf(Ptr, "%s", reward.c_str());
-	Ptr += t->reward.length() + 1;
+	Ptr += reward.length() + 1;
 
 	// second string is parsed for item links
 	sprintf(Ptr, "%s", t->item_link.c_str());
 	Ptr += t->item_link.length() + 1;
 
 	tdt = (TaskDescriptionTrailer_Struct *) Ptr;
+
 	// shared tasks show radiant/ebon crystal reward, non-shared tasks show generic points
-	tdt->Points = t->reward_points;
+	tdt->Points = is_don_reward ? t->reward_points : 0;
 
 	tdt->has_reward_selection = 0; // TODO: new rewards window