From 851d4aa88576075556de183ef37b179f8dbfdfe2 Mon Sep 17 00:00:00 2001
From: Melledy <121644117+Melledy@users.noreply.github.com>
Date: Sun, 10 Dec 2023 18:13:36 -0800
Subject: [PATCH] Implement configurable server drop rates

---
 src/main/java/emu/lunarcore/Config.java       | 10 ++++++
 .../emu/lunarcore/game/drops/DropParam.java   | 31 ++++++++++++++++---
 .../emu/lunarcore/game/drops/DropService.java | 10 ++++--
 3 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/src/main/java/emu/lunarcore/Config.java b/src/main/java/emu/lunarcore/Config.java
index e60d408..f57ec67 100644
--- a/src/main/java/emu/lunarcore/Config.java
+++ b/src/main/java/emu/lunarcore/Config.java
@@ -22,6 +22,7 @@ public class Config {
     public GameServerConfig gameServer = new GameServerConfig(23301);
     
     public ServerOptions serverOptions = new ServerOptions();
+    public ServerRates serverRates = new ServerRates();
     public LogOptions logOptions = new LogOptions();
     public DownloadData downloadData = new DownloadData();
 
@@ -131,6 +132,15 @@ public class Config {
         }
     }
     
+    @Getter
+    public static class ServerRates {
+        public double exp = 1.0;
+        public double credit = 1.0;
+        public double jade = 1.0;
+        public double material = 1.0;
+        public double equip = 1.0;
+    }
+    
     @Getter
     public static class ServerProfile {
         public String name = "Server";
diff --git a/src/main/java/emu/lunarcore/game/drops/DropParam.java b/src/main/java/emu/lunarcore/game/drops/DropParam.java
index e1855b8..bcb6014 100644
--- a/src/main/java/emu/lunarcore/game/drops/DropParam.java
+++ b/src/main/java/emu/lunarcore/game/drops/DropParam.java
@@ -1,5 +1,7 @@
 package emu.lunarcore.game.drops;
 
+import emu.lunarcore.GameConstants;
+import emu.lunarcore.LunarCore;
 import emu.lunarcore.data.GameData;
 import emu.lunarcore.data.excel.ItemExcel;
 import emu.lunarcore.util.Utils;
@@ -78,7 +80,8 @@ public class DropParam {
         }
         
         // Get count
-        int count = generateCount();
+        double count = generateCount();
+        var rates = LunarCore.getConfig().getServerRates();
 
         // Generate item(s)
         while (count > 0) {
@@ -88,11 +91,29 @@ public class DropParam {
             if (excel == null) break;
          
             if (excel.isEquippable()) {
-                drops.addTo(itemId, 1);
-                count--;
+                // Add relic/equipment drop
+                if (rates.getEquip() > 0) {
+                    drops.addTo(itemId, 1);
+                    count -= (1 / rates.getEquip());
+                } else {
+                    count -= 1; // To prevent a rate of 0 from freezing the server
+                }
             } else {
-                drops.addTo(itemId, count);
-                count -= count;
+                // Apply server rates to drop amount amount
+                int amount = switch (itemId) {
+                case GameConstants.TRAILBLAZER_EXP_ID -> (int) Math.floor(count * rates.getExp());
+                case GameConstants.MATERIAL_COIN_ID -> (int) Math.floor(count * rates.getCredit());
+                case GameConstants.MATERIAL_HCOIN_ID -> (int) Math.floor(count * rates.getJade());
+                default -> (int) Math.floor(count * rates.getMaterial());
+                };
+                
+                // Add material/virtual drop
+                if (amount > 0) {
+                    drops.addTo(itemId, amount);
+                }
+                
+                // To prevent a rate of 0 from freezing the server
+                count -= count; 
             }
         }
     }
diff --git a/src/main/java/emu/lunarcore/game/drops/DropService.java b/src/main/java/emu/lunarcore/game/drops/DropService.java
index 9894f59..f4c792d 100644
--- a/src/main/java/emu/lunarcore/game/drops/DropService.java
+++ b/src/main/java/emu/lunarcore/game/drops/DropService.java
@@ -4,6 +4,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 import emu.lunarcore.GameConstants;
+import emu.lunarcore.LunarCore;
 import emu.lunarcore.data.GameData;
 import emu.lunarcore.data.common.ItemParam;
 import emu.lunarcore.data.excel.ItemExcel;
@@ -64,21 +65,24 @@ public class DropService extends BaseGameService {
         
         // Create drops
         for (var entry : dropMap.entries()) {
-            if (entry.getIntValue() <= 0) {
+            // Get amount
+            int amount = entry.getIntValue();
+            if (amount <= 0) {
                 continue;
             }
             
             // Create item and add it to player
+            int itemId = 0;
             ItemExcel excel = GameData.getItemExcelMap().get(entry.getIntKey());
             if (excel == null) continue;
             
             // Add item
             if (excel.isEquippable()) {
-                for (int i = 0; i < entry.getIntValue(); i++) {
+                for (int i = 0; i < amount; i++) {
                     battle.getDrops().add(new GameItem(excel, 1));
                 }
             } else {
-                battle.getDrops().add(new GameItem(excel, entry.getIntValue()));
+                battle.getDrops().add(new GameItem(excel, amount));
             }
         }