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GUI with buttons


Yagoki

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This is my first time trying to make a gui, and i'm not quite sure how to go about it. I want to add a gui to my proximity detector so that the range and functions can be changed. I've already set up the fields i feel will be necessary in the TileEntity, which is currently working as expected.

I tried looking through the tutorial on the wiki which didn't really help with what i want to do (as far as i could tell) and didn't explain it in a way which made it so i could understand everything which was going on.

 

I need buttons so that i can change the entity types it will detect, and also the range on the detector. If somebody could walk me through the basics of this that would be great :D

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If you want to make a GUI and a tile entity without an inventory, you'll be needing the following classes.

 

A block

A GUI handler

A GUI class for the block

A tile entity class

A packet handler

 

Here are those 4 classes from one of my mods (the block is called NumpadBlock):

 

NumpadBlock class:

 

package vivadaylight3.interlock.blocks;

import java.io.IOException;
import java.util.Random;

import vivadaylight3.interlock.Interlock;
import vivadaylight3.interlock.tileentities.numpadblock.GuiNumpadBlock;
import vivadaylight3.interlock.tileentities.numpadblock.TileEntityNumpadBlock;

import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.tileentity.TileEntityCommandBlock;
import net.minecraft.world.World;

public class NumpadBlock extends BlockContainer
{
private String code;

    public NumpadBlock(int par1)
    {
        super(par1, Material.iron);
        setCreativeTab(CreativeTabs.tabRedstone);
    }
    
    public void registerIcons(IconRegister iconRegister){
    	
        blockIcon = iconRegister.registerIcon("Interlock:numpadBlock");
        
    }

    /**
     * Returns a new instance of a block's tile entity class. Called on placing the block.
     */
    public TileEntity createNewTileEntity(World par1World)
    {
        return new TileEntityNumpadBlock();
    }

    /**
     * Called upon block activation (right click on the block.)
     */
    
    public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
    {
    	TileEntity tileEntity = world.getBlockTileEntity(x, y, z);

        if (tileEntity == null || par5EntityPlayer.isSneaking()){
        	
        	par5EntityPlayer.addChatMessage("You are sneaking");
        	
        	return false;
        	        	
        }

        par5EntityPlayer.openGui(Interlock.instance, 2, world, x, y, z);
        
        return true;
        
    }

    /**
     * If this returns true, then comparators facing away from this block will use the value from
     * getComparatorInputOverride instead of the actual redstone signal strength.
     */
    public boolean hasComparatorInputOverride()
    {
        return false;
    }

    /**
     * If hasComparatorInputOverride returns true, the return value from this is used instead of the redstone signal
     * strength when this block inputs to a comparator.
     */
    public int getComparatorInputOverride(World par1World, int par2, int par3, int par4, int par5)
    {
        return 0;
    }

    /**
     * Called when the block is placed in the world.
     */
    public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving, ItemStack par6ItemStack)
    {

    }
}

 

 

GuiNumpad

 

 

package vivadaylight3.interlock.tileentities.numpadblock;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.GuiScreen;
import net.minecraft.client.gui.GuiTextField;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.network.packet.Packet;
import net.minecraft.network.packet.Packet250CustomPayload;
import net.minecraft.util.StringTranslate;
import net.minecraft.world.World;

import org.lwjgl.input.Keyboard;

import vivadaylight3.interlock.handlers.Config;

import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;

@SideOnly(Side.CLIENT)
public class GuiNumpadBlock extends GuiScreen
{

    /** Combination and set/clear buttons. */
    private final TileEntityNumpadBlock numpadBlock;
    private GuiButton button1;
    private GuiButton button2;
    private GuiButton button3;
    private GuiButton button4;
    private GuiButton button5;
    private GuiButton button6;
    private GuiButton button7;
    private GuiButton button8;
    private GuiButton button9;
    private GuiButton button0;
    private GuiButton buttonClear;
    private GuiButton buttonSet;
   // private EntityPlayer player;
    
    private String code = "";
    private int codeSize = 0;
    
    private World world;
    private int x;
    private int y;
    private int z;

    public GuiNumpadBlock(TileEntityNumpadBlock par1, World par2World, int par3x, int par4y, int par5z)
    {
        this.numpadBlock = par1;
        this.world = par2World;
        this.x = par3x;
        this.y = par4y;
        this.z = par5z;
        //this.player = par2Player;
      //  this.player.addChatMessage("GuiNUmpad: constructor");
    }

    /**
     * Called from the main game loop to update the screen.
     */
    public void updateScreen()
    {
        //this.enteredCodeField.updateCursorCounter();
       // this.player.addChatMessage("GuiNUmpad: updateScreen");
    }

    /**
     * Adds the buttons (and other controls) to the screen in question.
     */
    public void initGui()
    {
        StringTranslate stringtranslate = StringTranslate.getInstance();
        Keyboard.enableRepeatEvents(true);
        this.buttonList.clear();
        this.buttonList.add(this.button1 = new GuiButton(1, this.width / 2 - 150, 47, "1"));
        this.buttonList.add(this.button2 = new GuiButton(2, this.width / 2 - 150, 70, "2"));
        this.buttonList.add(this.button3 = new GuiButton(3, this.width / 2 - 150, 93, "3"));
        this.buttonList.add(this.button4 = new GuiButton(4, this.width / 2 - 150, 116, "4"));
        this.buttonList.add(this.button5 = new GuiButton(5, this.width / 2 - 150, 139, "5"));
        this.buttonList.add(this.button6 = new GuiButton(6, this.width / 2 - 150, 162, "6"));
        this.buttonList.add(this.button7 = new GuiButton(7, this.width / 2 - 150, 185, "7"));
        this.buttonList.add(this.buttonSet = new GuiButton(10, this.width / 2 - 150, 198, "Set code"));
        this.buttonList.add(this.buttonClear = new GuiButton(11, this.width / 2, 198, "Cancle"));
       // this.player.addChatMessage("GuiNUmpad: initGui");
    }

    /**
     * Called when the screen is unloaded. Used to disable keyboard repeat events
     */
    public void onGuiClosed()
    {
        Keyboard.enableRepeatEvents(false);
       // this.player.addChatMessage("GuiNUmpad: onGuiClosed");
    }

    /**
     * Fired when a control is clicked. This is the equivalent of ActionListener.actionPerformed(ActionEvent e).
     */
    protected void actionPerformed(GuiButton par1GuiButton)
    {
    	//this.player.addChatMessage("GuiNUmpad: actionPerformed");
        if (par1GuiButton.enabled)
        {
            if (par1GuiButton.id == 1)
            {
            	if(codeSize < 4){
            		
            		code = code+"1";
            		codeSize++;
            		
            	}

            }else if (par1GuiButton.id == 2)
            {
            	if(codeSize < 4){
            		
            		code = code+"2";
            		codeSize++;
            		
            	}

            }else if (par1GuiButton.id == 3)
            {
            	if(codeSize < 4){
            		
            		code = code+"3";
            		codeSize++;
            		
            	}

            }else if (par1GuiButton.id == 4)
            {
            	if(codeSize < 4){
            		
            		code = code+"4";
            		codeSize++;
            		
            	}

            }
            else if (par1GuiButton.id == 5)
            {
            	if(codeSize < 4){
            		
            		code = code+"5";
            		codeSize++;
            		
            	}

            }
            else if (par1GuiButton.id == 6)
            {
            	if(codeSize < 4){
            		
            		code = code+"6";
            		codeSize++;
            		
            	}

            }
            else if (par1GuiButton.id == 7)
            {
            	if(codeSize < 4){
            		
            		code = code+"7";
            		codeSize++;
            		
            	}

            }else if (par1GuiButton.id == 10){
            	
            	if(codeSize == 4){
            		
            		try {
					setCode(world, x, y, z, code, "", "codes.properties");
				} catch (IOException e) {
					e.printStackTrace();
				}
            		
            	}
            	
            }else if(par1GuiButton.id == 11){
            	
            	code = null;
            	codeSize = (Integer) null;
            	this.mc.displayGuiScreen((GuiScreen)null);
            	
            	
            }
            else if (par1GuiButton.id == 0)
            {
                String s = "IntlckNumComb";
                ByteArrayOutputStream bytearrayoutputstream = new ByteArrayOutputStream();
                DataOutputStream dataoutputstream = new DataOutputStream(bytearrayoutputstream);

                try
                {
                    dataoutputstream.writeInt(this.numpadBlock.xCoord);
                    dataoutputstream.writeInt(this.numpadBlock.yCoord);
                    dataoutputstream.writeInt(this.numpadBlock.zCoord);
                    this.mc.getNetHandler().addToSendQueue(new Packet250CustomPayload(s, bytearrayoutputstream.toByteArray()));
                }
                catch (Exception exception)
                {
                    exception.printStackTrace();
                }

                this.mc.displayGuiScreen((GuiScreen)null);
            }
        }
    }

    /**
     * Fired when a key is typed. This is the equivalent of KeyListener.keyTyped(KeyEvent e).
     */
    protected void keyTyped(char par1, int par2)
    {
    	//this.player.addChatMessage("GuiNUmpad: keyTyped");
    	/*
        this.enteredCodeField.textboxKeyTyped(par1, par2);
        this.doneBtn.enabled = this.enteredCodeField.getText().trim().length() > 0;
        */

        if (par2 != 28 && par1 != 13)
        {
            if (par2 == 1)
            {
               // this.actionPerformed(this.buttonClear);
            }
        }
        else
        {
            //this.actionPerformed(this.doneBtn);
        }
    }

    /**
     * Called when the mouse is clicked.
     */
    protected void mouseClicked(int par1, int par2, int par3)
    {
        super.mouseClicked(par1, par2, par3);
       // this.enteredCodeField.mouseClicked(par1, par2, par3);
    }

    /**
     * Draws the screen and all the components in it.
     */
    public void drawScreen(int par1, int par2, float par3)
    {
    	//this.player.addChatMessage("GuiNumpad: drawScreen");
        StringTranslate stringtranslate = StringTranslate.getInstance();
        this.drawDefaultBackground();
        this.drawCenteredString(this.fontRenderer, "Set 4-digit code", this.width / 2, this.height / 4 - 60 + 20, 16777215);
        /*
        this.drawCenteredString(this.fontRenderer, stringtranslate.translateKey("advMode.setCommand"), this.width / 2, this.height / 4 - 60 + 20, 16777215);
        this.drawString(this.fontRenderer, stringtranslate.translateKey("advMode.command"), this.width / 2 - 150, 47, 10526880);
        this.enteredCodeField.drawTextBox();
        */
        super.drawScreen(par1, par2, par3);
    }
    
    public static String getCode(World world, int x, int y, int z, String path, String filename) throws IOException{
    	
    	Config config = new Config();
    	
    	String code = config.getStringKey(world+""+x+""+y+""+z, path, filename);
    	
    	return code;
    	
    }
    
    public void setCode(World world, int x, int y, int z, String value, String path, String filename) throws IOException{
    	
    	Config config = new Config();
    	
    	config.setStringKey(world+""+x+""+y+""+z, value, path, filename);
    	        	
    }
}

 

 

My packet handler

 

package vivadaylight3.interlock.handlers;

import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;

import net.minecraft.network.INetworkManager;
import net.minecraft.network.packet.Packet250CustomPayload;
import cpw.mods.fml.common.network.IPacketHandler;
import cpw.mods.fml.common.network.Player;

public class InterlockPacketHandler implements IPacketHandler{

@Override
public void onPacketData(INetworkManager manager,
		Packet250CustomPayload packet, Player player) {

	if(packet.channel.equals("Interlock")){

		handlePacket(packet);

	}

}

public void handlePacket(Packet250CustomPayload packet){

	DataInputStream inputStream = new DataInputStream(new ByteArrayInputStream(packet.data));

	int randomInt1;
	int randomInt2;

	try{

		randomInt1 = inputStream.readInt();
		randomInt2 = inputStream.readInt();

	}catch(IOException e){

		e.printStackTrace();
		return;

	}

	System.out.println(randomInt1+""+randomInt2);

}

}

 

 

My GUI Handler

 

package vivadaylight3.interlock.handlers;

import vivadaylight3.interlock.Interlock;
import vivadaylight3.interlock.tileentities.numpadblock.GuiNumpadBlock;
import vivadaylight3.interlock.tileentities.numpadblock.TileEntityNumpadBlock;
import vivadaylight3.interlock.tileentities.polishermachine.ContainerPolisherMachine;
import vivadaylight3.interlock.tileentities.polishermachine.GuiPolisherMachine;
import vivadaylight3.interlock.tileentities.polishermachine.TileEntityPolisherMachine;
import net.minecraft.block.Block;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import cpw.mods.fml.common.network.IGuiHandler;

public class InterlockGuiHandler implements IGuiHandler{

@Override
public Object getServerGuiElement(int ID, EntityPlayer player, World world,
		int x, int y, int z) {

	TileEntity tileEntity = world.getBlockTileEntity(x, y, z);

	if(tileEntity instanceof TileEntityPolisherMachine){

		player.addChatMessage("InterlockGuiHandler: Server, Is polisher");

		return new ContainerPolisherMachine(player.inventory, (TileEntityPolisherMachine) tileEntity);

	}else if(tileEntity instanceof TileEntityNumpadBlock){

		player.addChatMessage("InterlockGuiHandler: Server, Is numpad block");

		return new TileEntityNumpadBlock();

	}

	return null;

}

public Object getClientGuiElement(int ID, EntityPlayer player, World world,
		int x, int y, int z) {

	TileEntity tileEntity = world.getBlockTileEntity(x, y, z);

	if(tileEntity instanceof TileEntityPolisherMachine){

		player.addChatMessage("InterlockGuiHandler: Is polisher machine");

		return new GuiPolisherMachine(player.inventory, (TileEntityPolisherMachine) tileEntity);

	}else if(tileEntity instanceof TileEntityNumpadBlock){

		player.addChatMessage("InterlockGuiHandler: Is numpad block");

		return new GuiNumpadBlock((TileEntityNumpadBlock) tileEntity, world, x, y, z);

	}

	return null;
}



}

 

 

The tile entity class (Shouldn't need any content if it doesn't have an inventory)

 

package vivadaylight3.interlock.tileentities.numpadblock;

import net.minecraft.tileentity.TileEntity;

public class TileEntityNumpadBlock extends TileEntity {

}

 

 

My GUI handler

 

package vivadaylight3.interlock.handlers;

import vivadaylight3.interlock.Interlock;
import vivadaylight3.interlock.tileentities.numpadblock.GuiNumpadBlock;
import vivadaylight3.interlock.tileentities.numpadblock.TileEntityNumpadBlock;
import vivadaylight3.interlock.tileentities.polishermachine.ContainerPolisherMachine;
import vivadaylight3.interlock.tileentities.polishermachine.GuiPolisherMachine;
import vivadaylight3.interlock.tileentities.polishermachine.TileEntityPolisherMachine;
import net.minecraft.block.Block;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import cpw.mods.fml.common.network.IGuiHandler;

public class InterlockGuiHandler implements IGuiHandler{

@Override
public Object getServerGuiElement(int ID, EntityPlayer player, World world,
		int x, int y, int z) {

	TileEntity tileEntity = world.getBlockTileEntity(x, y, z);

	if(tileEntity instanceof TileEntityPolisherMachine){

		player.addChatMessage("InterlockGuiHandler: Server, Is polisher");

		return new ContainerPolisherMachine(player.inventory, (TileEntityPolisherMachine) tileEntity);

	}else if(tileEntity instanceof TileEntityNumpadBlock){

		player.addChatMessage("InterlockGuiHandler: Server, Is numpad block");

		return new TileEntityNumpadBlock();

	}

	return null;

}

public Object getClientGuiElement(int ID, EntityPlayer player, World world,
		int x, int y, int z) {

	TileEntity tileEntity = world.getBlockTileEntity(x, y, z);

	if(tileEntity instanceof TileEntityPolisherMachine){

		player.addChatMessage("InterlockGuiHandler: Is polisher machine");

		return new GuiPolisherMachine(player.inventory, (TileEntityPolisherMachine) tileEntity);

	}else if(tileEntity instanceof TileEntityNumpadBlock){

		player.addChatMessage("InterlockGuiHandler: Is numpad block");

		return new GuiNumpadBlock((TileEntityNumpadBlock) tileEntity, world, x, y, z);

	}

	return null;
}



}

 

 

If you have experience with forge modding, you'll probably understand what's going on in each file, if not, just ask :)

"Thinking that coding is the nerdy IT guy at work rebooting your computer is like thinking that music is what happens when the piano tuner comes round." - Ed Rex

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just another small question,

 

what do i need to send packets for (and how do i do/handle this properly)? I'm trying to do it so that the range, and detection types in my proximity detector can be changed, so do i need to send a packet each time one of these buttons is pressed, and also how do i send and use the data on the button?

 

also, where is the id for the gui defined? in the following line form your code it is called, but i can't see where it is created or how to know what it will be.

 

par5EntityPlayer.openGui(Interlock.instance, 2, world, x, y, z);

 

[EDIT]

Also, can i see how you registered your package handlers and channels, doing it in the same way as the wiki tutorial gave me a crash saying that the channel name was incorrect or something.

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