minecraft-kajetans-mod/src/main/java/me/km/datatools/CommandVillager.java

package me.km.datatools;

import me.km.api.GlobalText;
import me.km.api.Module;
import me.km.api.ModuleCommand;
import me.km.api.Utils;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import me.km.permissions.Permissions;
import me.km.inventory.EntityInventory;
import me.km.inventory.InventoryUtils;
import net.minecraft.command.ICommandSender;
import net.minecraft.entity.SharedMonsterAttributes;
import net.minecraft.entity.passive.EntityVillager;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.server.MinecraftServer;
import net.minecraft.util.math.BlockPos;
import net.minecraft.village.MerchantRecipe;
import net.minecraft.village.MerchantRecipeList;
import net.minecraft.world.World;

public class CommandVillager extends ModuleCommand
{
    private final ArrayList<String> vil;
    
    public CommandVillager(Module m) 
    {
        super("villager", m);
        super.setDescription("Spezielle Commands für Villager");
        super.setUsage("/villager für die Hilfe");
        super.setPermission(Permissions.VILLAGER);
        super.addAlias("vi");
        
        vil = new ArrayList<>(Arrays.asList(new String[] {"inv", "trades", "spawn", "child"})); 
    }

    @Override
    public List<String> getTabCompletions(MinecraftServer server, ICommandSender sender, String[] args, BlockPos targetPos) 
    {
        List<String> names = new ArrayList<>();     
        if(args.length == 1)
        {
            vil.stream().filter(e -> e.toLowerCase().startsWith(args[0].toLowerCase())).forEach(e -> 
            {                   
                names.add(e);
            });
            return names;
        }     
        return names;  
    }

    @Override
    public boolean execute(ICommandSender cs, String[] arg) 
    {
        if(!(cs instanceof EntityPlayerMP))
        {
            this.getModule().send(cs, GlobalText.onlyPlayer());
            return true;
        }
        EntityPlayerMP p = (EntityPlayerMP) cs;
        Module m = this.getModule();
        if(arg.length >= 1)
        {         
            switch (arg[0])    
            {
                case "inv":
                {
                    EntityVillager v = Utils.getTargetedEntity(p, 3, EntityVillager.class);
                    if(v == null)
                    {
                        m.send(cs, "Du musst auf einen Villager gerichtet sein.");
                        return true;
                    }       
                    p.displayGUIChest(InventoryUtils.getInventory(v));
                    return true;
                }
                case "trades":
                {
                    EntityVillager v = Utils.getTargetedEntity(p, 3, EntityVillager.class);
                    if(v == null)
                    {
                        m.send(cs, "Du musst auf einen Villager gerichtet sein.");
                        return true;
                    }         
                    EntityInventory inv = new EntityInventory("ChangeTrades - " + v.getEntityId(), 54, v);
                    int i = 0;
                    MerchantRecipeList list = v.getRecipes(null);
                    if(list != null)
                    {
                        for(MerchantRecipe mr : list)
                        {
                            inv.setInventorySlotContents(i, mr.getItemToSell().copy());
                            inv.setInventorySlotContents(i + 9, mr.getItemToBuy().copy());
                            inv.setInventorySlotContents(i + 18, mr.getSecondItemToBuy().copy());                         
                            i++;
                            if(i >= 9)
                            {
                                i = 27;
                            }
                            if(i >= 36)
                            {
                                break;
                            }
                        }
                    }
                    p.displayGUIChest(inv);
                    return true;
                }
                case "spawn":   
                    if(arg.length >= 2)
                    {                                                      
                        try
                        {
                            World w = p.getEntityWorld();
                            EntityVillager v = new EntityVillager(w, Integer.parseInt(arg[1]));
                            v.setPosition(p.posX, p.posY, p.posZ);       
                            v.getEntityAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).setBaseValue(0);
                            w.spawnEntity(v);
                            return true;
                        }
                        catch(NumberFormatException ex)
                        {
                            m.send(cs, "Die ID ist ungültig.");
                        } 
                        catch(IllegalArgumentException ex)
                        {
                            m.send(cs, "Dieser Typ von Villager existiert nicht.");
                        } 
                    }
                    break;
                case "child":   
                    if(arg.length >= 2)
                    {                                                      
                        try
                        {
                            World w = p.getEntityWorld();
                            EntityVillager v = new EntityVillager(w, Integer.parseInt(arg[1]));
                            v.setGrowingAge(Integer.MIN_VALUE);
                            v.setPosition(p.posX, p.posY, p.posZ);       
                            v.getEntityAttribute(SharedMonsterAttributes.MOVEMENT_SPEED).setBaseValue(0);
                            w.spawnEntity(v);
                            return true;
                        }
                        catch(IllegalArgumentException ex)
                        {
                            m.send(cs, "Dieser Typ von Villager existiert nicht.");
                        } 
                    }
                    break;
            }
        }
        // Help Menu
        m.send(cs, "/villager ...");
        m.sendHelpListElement(cs, "inv", "Öffnet den Inventar eines Villagers");
        m.sendHelpListElement(cs, "trades", "Öffnet die Trades vom Villager");
        m.sendHelpListElement(cs, "spawn <profid>", "Spawnt einen Villager");
        m.sendHelpListElement(cs, "child <profid>", "Spawnt einen Villager");
        return true;
    }
}