Implement !giveall command

-Also fixed server error when receiving characters

src/main/java/emu/nebula/command/commands/GiveAllCommand.java

@@ -0,0 +1,124 @@
+package emu.nebula.command.commands;
+
+import java.util.Set;
+
+import emu.nebula.GameConstants;
+import emu.nebula.command.Command;
+import emu.nebula.command.CommandArgs;
+import emu.nebula.command.CommandHandler;
+import emu.nebula.data.GameData;
+import emu.nebula.data.resources.ItemDef;
+import emu.nebula.game.inventory.ItemParamMap;
+import emu.nebula.game.inventory.ItemSubType;
+import emu.nebula.game.player.Player;
+import emu.nebula.game.player.PlayerChangeInfo;
+import emu.nebula.net.NetMsgId;
+
+@Command(
+        label = "giveall", 
+        aliases = {"ga"}, 
+        permission = "player.give", 
+        requireTarget = true, 
+        desc = "!ga [characters | discs | materials]. Gives the targeted player items."
+)
+public class GiveAllCommand implements CommandHandler {
+    private static Set<ItemSubType> MATERIAL_ITEM_SUBTYPES = Set.of(
+        ItemSubType.DiscStrengthen,         // Disc exp
+        ItemSubType.DiscPromote,            // Disc tier up
+        ItemSubType.SkillStrengthen,        // Skill upgrade
+        ItemSubType.CharacterLimitBreak,    // Character tier up
+        ItemSubType.Equipment               // Emblem crafting
+    );
+
+    @Override
+    public void execute(CommandArgs args) {
+        Player target = args.getTarget();
+        String type = args.get(0).toLowerCase();
+        
+        var items = new ItemParamMap();
+        var change = new PlayerChangeInfo();
+
+        switch (type) {
+            default -> args.sendMessage("Error: Invalid type");
+            case "m", "materials", "mats" -> {
+                // Check sub type
+                for (ItemDef data : GameData.getItemDataTable()) {
+                    if (!MATERIAL_ITEM_SUBTYPES.contains(data.getItemSubType())) {
+                        continue;
+                    }
+                    
+                    items.add(data.getId(), 10_000);
+                }
+                
+                // Character exp, not sure why this doesnt have an unique sub type so we have to hard code it
+                items.add(30001, 10_000);
+                items.add(30002, 10_000);
+                items.add(30003, 10_000);
+                items.add(30004, 10_000);
+
+                // Gold
+                items.add(GameConstants.GOLD_ITEM_ID, 50_000_000);
+
+                // Add to target's inventory
+                target.getInventory().addItems(items, change);
+
+                // Send message
+                args.sendMessage("Giving " + target.getName() + " " + items.size() + " items");
+            }
+            case "d", "discs" -> {
+                // Get all discs
+                for (var data : GameData.getDiscDataTable()) {
+                    // Skip unavailable discs
+                    if (!data.isAvailable() || !data.isVisible()) {
+                        continue;
+                    }
+                    
+                    // Check if we have the disc already
+                    if (target.getCharacters().hasDisc(data.getId())) {
+                        continue;
+                    }
+                    
+                    // Add
+                    items.add(data.getId(), 1);
+                }
+                
+                // Add to target's inventory
+                target.getInventory().addItems(items, change);
+
+                // Send message
+                args.sendMessage("Giving " + target.getName() + " all discs");
+            }
+            case "c", "characters", "trekkers", "t" -> {
+                // Get all characters
+                for (var data : GameData.getCharacterDataTable()) {
+                    // Skip unavailable characters
+                    if (!data.isAvailable() || !data.isVisible()) {
+                        continue;
+                    }
+                    
+                    // Check if we have the character already
+                    if (target.getCharacters().hasCharacter(data.getId())) {
+                        continue;
+                    }
+                    
+                    // Add
+                    items.add(data.getId(), 1);
+                }
+                
+                // Add to target's inventory
+                target.getInventory().addItems(items, change);
+
+                // Send message
+                args.sendMessage("Giving " + target.getName() + " all characters");
+            }
+        }
+        
+        if (change.isEmpty()) {
+            return;
+        }
+        
+        // Encode and send
+        target.addNextPackage(NetMsgId.items_change_notify, change.toProto());
+    }
+
+}

src/main/java/emu/nebula/data/resources/CharacterDef.java

@@ -12,6 +12,8 @@ import lombok.Getter;
 @ResourceType(name = "Character.json")
 public class CharacterDef extends BaseDef {
     private int Id;
+    private boolean Visible;
+    private boolean Available;
     private String Name;
     private int Grade;
     

src/main/java/emu/nebula/data/resources/DiscDef.java

@@ -8,6 +8,9 @@ import lombok.Getter;
 @ResourceType(name = "Disc.json")
 public class DiscDef extends BaseDef {
     private int Id;
+    private boolean Visible;
+    private boolean Available;
+    
     private int StrengthenGroupId;
     private int PromoteGroupId;
     private int TransformItemId;

src/main/java/emu/nebula/game/character/GameCharacter.java

@@ -83,6 +83,8 @@ public class GameCharacter implements GameDatabaseObject {
         this.skin = data.getDefaultSkinId();
         this.skills = new int[] {1, 1, 1, 1, 1};
         this.talents = new Bitset();
+        this.gemPresets = new ArrayList<>();
+        this.gemSlots = new CharacterGemSlot[GameConstants.CHARACTER_MAX_GEM_SLOTS];
         this.createTime = Nebula.getCurrentTime();
         
         this.contact = new CharacterContact(this);