How can I have nbt data specific to a block, I mean like if i place two of the same block, I want each to have its own nbt compound, the reason I am asking this is because I was able to pull it off, but both of the blocks would share the same nbt tag, how can I fix this? Thanks in advance!

 

 

oh right! my code!

 

genericTileEntity.java:

 

package tutorial.generic;

import net.minecraft.block.state.IBlockState;

import net.minecraft.entity.EntityLivingBase;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.inventory.IInventory;

import net.minecraft.inventory.InventoryHelper;

import net.minecraft.item.ItemStack;

import net.minecraft.nbt.NBTTagCompound;

import net.minecraft.nbt.NBTTagList;

import net.minecraft.server.gui.IUpdatePlayerListBox;

import net.minecraft.tileentity.TileEntity;

import net.minecraft.util.BlockPos;

import net.minecraft.util.ChatComponentText;

import net.minecraft.util.ChatComponentTranslation;

import net.minecraft.util.IChatComponent;

import net.minecraft.world.World;

 

public class genericTileEntity extends TileEntity implements IInventory {

private ItemStack[] inventory;

public static String name = "";

public static float maxSpeed = 0;

    private String customName;

    public static NBTTagCompound maxSpeedTag = new NBTTagCompound();

public static NBTTagCompound nameTag = new NBTTagCompound();

   

 

    public genericTileEntity() {

        this.inventory = new ItemStack[this.getSizeInventory()];

    }

 

    public String getCustomName() {

        return this.customName;

    }

 

    public void setCustomName(String customName) {

        this.customName = customName;

    }

   

    @Override

    public String getName() {

        return this.hasCustomName() ? this.customName : "container.tutorial_tile_entity";

    }

 

    @Override

    public boolean hasCustomName() {

        return this.customName != null && !this.customName.equals("");

    }

 

    @Override

    public IChatComponent getDisplayName() {

        return this.hasCustomName() ? new ChatComponentText(this.getName()) : new ChatComponentTranslation(this.getName());

    }

   

    @Override

    public int getSizeInventory() {

        return 9;

    }

   

    @Override

    public ItemStack getStackInSlot(int index) {

        if (index < 0 || index >= this.getSizeInventory())

            return null;

        return this.inventory[index];

    }

 

    @Override

    public ItemStack decrStackSize(int index, int count) {

        if (this.getStackInSlot(index) != null) {

            ItemStack itemstack;

 

            if (this.getStackInSlot(index).stackSize <= count) {

                itemstack = this.getStackInSlot(index);

                this.setInventorySlotContents(index, null);

                this.markDirty();

                return itemstack;

            } else {

                itemstack = this.getStackInSlot(index).splitStack(count);

 

                if (this.getStackInSlot(index).stackSize <= 0) {

                    this.setInventorySlotContents(index, null);

                } else {

                    //Just to show that changes happened

                    this.setInventorySlotContents(index, this.getStackInSlot(index));

                }

 

                this.markDirty();

                return itemstack;

            }

        } else {

            return null;

        }

    }

 

    @Override

    public ItemStack getStackInSlotOnClosing(int index) {

        ItemStack stack = this.getStackInSlot(index);

        this.setInventorySlotContents(index, null);

        return stack;

    }

 

    @Override

    public void setInventorySlotContents(int index, ItemStack stack) {

        if (index < 0 || index >= this.getSizeInventory())

            return;

 

        if (stack != null && stack.stackSize > this.getInventoryStackLimit())

            stack.stackSize = this.getInventoryStackLimit();

           

        if (stack != null && stack.stackSize == 0)

            stack = null;

 

        this.inventory[index] = stack;

        this.markDirty();

    }

   

    @Override

    public int getInventoryStackLimit() {

        return 64;

    }

   

    @Override

    public boolean isUseableByPlayer(EntityPlayer player) {

        return this.worldObj.getTileEntity(this.getPos()) == this && player.getDistanceSq(this.pos.add(0.5, 0.5, 0.5)) <= 64;

    }

   

    @Override

    public void openInventory(EntityPlayer player) {

    }

 

    @Override

    public void closeInventory(EntityPlayer player) {

    }

   

    @Override

    public boolean isItemValidForSlot(int index, ItemStack stack) {

        return true;

    }

   

    @Override

    public int getField(int id) {

        return 0;

    }

 

    @Override

    public void setField(int id, int value) {

    }

 

    @Override

    public int getFieldCount() {

        return 0;

    }

   

    @Override

    public void clear() {

        for (int i = 0; i < this.getSizeInventory(); i++)

            this.setInventorySlotContents(i, null);

    }

   

    public static void processActivate(EntityPlayer par5EntityPlayer, World world) {

        name = guiGenericTileEntity.textField.getText();

        maxSpeed = guiGenericTileEntity.mySlider.sliderValue;

}

   

   

   

    @Override

    public void writeToNBT(NBTTagCompound nbt) {

        super.writeToNBT(nbt);

 

        nbt.setString("name",name);

        nbt.setFloat("maxSpeed", maxSpeed);

        System.out.println("saved!");

    }

 

 

    @Override

    public void readFromNBT(NBTTagCompound nbt) {

        super.readFromNBT(nbt);

 

        name = nbt.getString("name");

        maxSpeed = nbt.getFloat("maxSpeed");

        System.out.println("loaded!");

    }

   

   

   

    public void setName(String name)

    {

        this.name = name;

        this.markForUpdate();

    }

   

    public void setMaxSpeed(float maxSpeed)

    {

        this.maxSpeed = maxSpeed;

        this.markForUpdate();

    }

   

    public void markForUpdate()

    {

    BlockPos pos = this.getPos();

        this.worldObj.markBlockForUpdate(pos);

        this.markDirty();

    }

   

   

 

 

   

}

 

 

 

 

 

guiGenericTileEntity.java:

 

 

 

 

 

package tutorial.generic;

 

import java.awt.Color;

import java.io.IOException;

 

import net.minecraft.client.gui.GuiButton;

import net.minecraft.client.gui.GuiScreen;

import net.minecraft.client.gui.GuiSlider;

import net.minecraft.client.gui.GuiTextField;

import net.minecraft.entity.player.EntityPlayer;

import net.minecraft.nbt.NBTTagCompound;

import net.minecraft.util.ChatComponentText;

import net.minecraft.util.ResourceLocation;

import net.minecraft.util.StatCollector;

import net.minecraft.world.World;

 

public class guiGenericTileEntity extends GuiScreen{

 

public static NBTTagCompound nameTag = new NBTTagCompound();

private int x, y, z;

private EntityPlayer player;

private World world;

private int xSize, ySize;

public static GuiTextField textField;

public static GuiSliderFixed mySlider;

public static NBTTagCompound maxSpeedTag = new NBTTagCompound();

public guiGenericTileEntity(EntityPlayer player, World world, int x, int y, int z) {

 

this.x = x;

this.y = y;

this.z = z;

this.player = player;

this.world = world;

xSize = 176;

ySize = 214;

}

 

 

 

private ResourceLocation backgroundimage = new ResourceLocation(Generic.MODID.toLowerCase() + ":" + "textures/gui/guiBackGenericTileEntity.png");

 

@Override

public void drawScreen(int mouseX, int mouseY, float renderPartialTicks) {

this.mc.getTextureManager().bindTexture(backgroundimage);

int x = (this.width - xSize) / 2;

int y = (this.height - ySize) / 2;

drawTexturedModalRect(x, y, 0, 0, xSize,  ySize);

 

fontRendererObj.drawString("MTTA System", (int) (width / 2 - (width / 13)), height / 15, ;

fontRendererObj.drawString("Train Name :", (int) (width / 2 - (width / 13)), (int) (height / 7., ;

fontRendererObj.drawString("Max Speed :", (int) (width / 2 - (width / 13)), (int) (height / 3.5), ;

 

 

 

textField.drawTextBox();

 

super.drawScreen(mouseX, mouseY, renderPartialTicks);

}

 

@Override

public boolean doesGuiPauseGame() {

return false;

}

 

@Override

public void updateScreen(){

textField.updateCursorCounter();

 

super.updateScreen();

}

 

@Override

protected void keyTyped(char typedChar, int keyCode) throws IOException{

textField.textboxKeyTyped(typedChar, keyCode);

super.keyTyped(typedChar, keyCode);

}

 

@Override

public void initGui(){

 

 

buttonList.add(new GuiButton(1, (int) (xSize / 3 * 2.35), ySize - (ySize / 18), xSize - 20, height / 12, "Save And Close"));

 

mySlider = new GuiSliderFixed(3, width / 2 - 75, height / 3, "MPH ", 1.0F, 100.0F, 1.0F);

buttonList.add(mySlider);

mySlider.sliderValue = maxSpeedTag.getFloat("MaxSpeed");

 

textField = new GuiTextField(width / 2, fontRendererObj, width / 2 - 50, (int) (height /  6), 100, 20);

textField.setMaxStringLength(30);

textField.setText(nameTag.getString("Name"));

textField.setFocused(true);

textField.setCanLoseFocus(false);

super.initGui();

}

 

@Override

protected void actionPerformed(GuiButton guibutton) {

//id is the id you give your button

switch(guibutton.id) {

case 1:

player.closeScreen();

nameTag.setString("Name", textField.getText());

maxSpeedTag.setFloat("MaxSpeed", mySlider.sliderValue);

genericTileEntity.processActivate(player, world);

player.addChatMessage(new ChatComponentText("Saved the current settings for " + textField.getText() + "!"));

break;

}

//Packet code here

//PacketDispatcher.sendPacketToServer(packet); //send packet

}

 

 

 

 

 

}

 

 

Hope this helps!

You don't need NBT data here.  Just use a private float property.

ok, but what if I created another entity later that needed this data? then what would I do?

Define "later needs this data."

He needs that because he is using Static variables and all tileEntities are overriding each other.

Remove the static from your variables (speed and the other one) and you will not have those problems anymore.

 

For explaining:

Static means no matter how often that class gets recreated that variable will be always the same for all of them.

A none static version will be recreated and shares the data only with the current instance which created it.