Gui.java

package OnerGamer.ALab;

import org.lwjgl.opengl.GL11;

import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiTextField;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ChatComponentTranslation;
import net.minecraft.util.ResourceLocation;
import net.minecraft.util.StatCollector;

public class GuiTest extends GuiContainer{

TileEntityTest tile;

public GuiTextField TextNameBox;
GuiButton button;

public GuiTest (TileEntityTest tileEntity){
	super(new ContainerTest(tileEntity));
	tile = tileEntity;
}

@Override
public void updateScreen(){
    	this.TextNameBox.updateCursorCounter();
    }

@Override
protected void drawGuiContainerForegroundLayer(int param1, int param2) {
	fontRendererObj.drawString("Tower", width /2 - 140, height /2 - 114, 0x000000);
	fontRendererObj.drawString("Owner : " + tile.username, width /2 - 200, height /2 - 92, 0x000000);
	fontRendererObj.drawString("OFF", width /2 - 80, height /2 + 27, 0x000000);
	TextNameBox.drawTextBox();
}

@Override
protected void drawGuiContainerBackgroundLayer(float par1, int par2, int par3){
	mc.renderEngine.bindTexture(new ResourceLocation("onermod:" + "textures/gui/alab/trap.png"));
	GL11.glColor4f(1.0F, 1.0F, 1.0F, 1.0F);
	int x = (width - xSize) / 2;
	int y = (height - ySize) / 2;
	this.drawTexturedModalRect(x, y, 0, 0, xSize, ySize);
}

@Override
public void initGui(){
	super.initGui();
	buttonList.clear();
	TextNameBox = new GuiTextField(this.fontRendererObj, width /2 -195, height /2 -60, 140, 20);
	buttonList.add(button = new GuiButton(0, width /2 -70, height /2 +5, 40, 20, "Add"));
	buttonList.add(button = new GuiButton(1, width /2 -20, height /2 +5, 40, 20, "Remove"));
	buttonList.add(button = new GuiButton(2, width /2 +30, height /2 +5, 40, 20, "Check"));
	buttonList.add(button = new GuiButton(2, width /2 -70, height /2 +58, 40, 20, "ON"));
	buttonList.add(button = new GuiButton(2, width /2 -20, height /2 +58, 40, 20, "OFF"));
	TextNameBox.setFocused(true);
}

@Override
protected void actionPerformed(GuiButton button){
	switch(button.id){
	case 0:
		if(tile.playerHistory.contains(TextNameBox.getText())){
			Minecraft.getMinecraft().thePlayer.addChatMessage(new ChatComponentTranslation("This tower have this player"));
		}else{
			tile.addPlayer(TextNameBox.getText(), tile.getWorldObj());
		}
	}
	switch(button.id){
	case 1:
		if(tile.playerHistory.contains(TextNameBox.getText())){
			tile.removePlayer(TextNameBox.getText());
		}else{
			Minecraft.getMinecraft().thePlayer.addChatMessage(new ChatComponentTranslation("This tower don't have this player"));
		}
	}
	switch(button.id){
	case 2:
		Minecraft.getMinecraft().thePlayer.addChatMessage(new ChatComponentTranslation("---This Tower---"));
		for (String s : tile.playerHistory){
			Minecraft.getMinecraft().thePlayer.addChatMessage(new ChatComponentTranslation(s));
	    }
	}
	super.actionPerformed(button);
}

@Override
    protected void keyTyped(char p_73869_1_, int p_73869_2_){
	TextNameBox.textboxKeyTyped(p_73869_1_, p_73869_2_);
	super.keyTyped(p_73869_1_, p_73869_2_);
    }

public void updateFromTileEntityData() {}
}

 

Tile.java

package OnerGamer.ALab;

import java.util.ArrayList;
import java.util.List;

import cpw.mods.fml.client.FMLClientHandler;
import net.minecraft.client.Minecraft;
import net.minecraft.client.gui.GuiScreen;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.network.NetworkManager;
import net.minecraft.network.Packet;
import net.minecraft.network.play.server.S35PacketUpdateTileEntity;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ChatComponentTranslation;
import net.minecraft.world.World;
import net.minecraftforge.common.util.Constants;

public class TileEntityTest extends TileEntity{

public String username;
public List<String> playerHistory = new ArrayList<String>();

@Override
public void writeToNBT(NBTTagCompound nbt){
    super.writeToNBT(nbt);
    nbt.setString("username", username);
    NBTTagList tagList = new NBTTagList();
    for(int i = 0; i < playerHistory.size(); i++){
    	String s = playerHistory.get(i);
    	NBTTagCompound tag = new NBTTagCompound();
    	tag.setString("Player" + i, s);
    	tagList.appendTag(tag);
    }
    nbt.setTag("PlayerList", tagList);
}

@Override
public void readFromNBT(NBTTagCompound nbt){
    super.readFromNBT(nbt);
    this.username = nbt.getString("username");
    NBTTagList tagList = nbt.getTagList("PlayerList", Constants.NBT.TAG_COMPOUND);
    for(int i = 0; i < tagList.tagCount(); i++){
    	NBTTagCompound tag = tagList.getCompoundTagAt(i);
    	String s = tag.getString("Player" + i);
    	playerHistory.add(i, s);
    }
}

public void addPlayer(String playerName, World world) {
	playerHistory.add(playerName);
	world.getTileEntity(xCoord, yCoord, zCoord);
}

public void removePlayer(String playerName){
	playerHistory.remove(playerName);
}

public void processActivate(EntityLivingBase par5EntityPlayer, World world){
    	username = par5EntityPlayer.getCommandSenderName();
    	playerHistory.add("aaa");
    	world.getTileEntity(xCoord, yCoord, zCoord);
    }

@Override
public Packet getDescriptionPacket() {
    NBTTagCompound tagCompound = new NBTTagCompound();
    writeToNBT(tagCompound);
    return new S35PacketUpdateTileEntity(xCoord, yCoord, zCoord, 1, tagCompound);
}
    
    @Override
    public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity pkt){
    	readFromNBT(pkt.func_148857_g());
    	GuiScreen gui = FMLClientHandler.instance().getClient().currentScreen;
        if (gui != null && gui instanceof GuiTest) {
        	((GuiTest) gui).updateFromTileEntityData();
        }
        this.worldObj.markBlockForUpdate(xCoord, yCoord, zCoord);
    }
}

hahaha OK sir.

 

GuiTest.java

// in actionPerformed

TileEntityTest tile;

if(tile.playerHistory.contains(TextNameBox.getText())){
Minecraft.getMinecraft().thePlayer.addChatMessage(new ChatComponentTranslation("This tower have this player"));
}else{
tile.addPlayer(TextNameBox.getText(), tile.getWorldObj());
}

 

TileEntityTest.java

public void addPlayer(String playerName, World world) {
	playerHistory.add(playerName);
	world.getTileEntity(xCoord, yCoord, zCoord);
}

I want add String to list in tileentity by TextBox in gui. and give NBTTagCompound save it.

 

but it can't save.

 

What should I do?