[[1.8] Invisible Item?]

Okay, I see. I'll be sure to try that. I've managed to get it to spawn on the client side. Thanks for the help.

[[1.8] Invisible Item?]

I was asking for the method used. Like is it the setInventorySlotContents or something else?

[[1.8] Invisible Item?]

Okay, I'll try to get it to spawn client side. Where should I check to see if the stored itemstacks are null?

[[1.8] Invisible Item?]

I've been working on a tile entity that makes various items in the game. I've managed to get the server to spawn the itemstacks but they are invisible in the slots until the user grabs them. I think maybe I'm only spawning on the server. Also, I've noticed that various itemstacks seem to be around that have a stack size of 0 if I try to grab from the slot after all of the items are gone. It basically shows a value of 0 in red where a number would be if the stack size is more than 1. What is it I'm doing wrong? Anything helps.

 

Block Class:

package com.littlepup.xcom.blocks.engineering_block;

import com.littlepup.xcom.XcomMain;
import com.littlepup.xcom.packets.PacketsMain;
import com.littlepup.xcom.packets.XcomGuiHandler;
import com.littlepup.xcom.packets.engineering.EngineerToServerMessage;

import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.World;

public class BlockEngineeringPanel extends BlockContainer
{
public BlockEngineeringPanel(Material materialIn) 
{
	super(materialIn);
	this.setBlockUnbreakable();
	this.setCreativeTab(XcomMain.xcomTab);
	this.setUnlocalizedName("engineering_block");
}

@Override
public TileEntity createNewTileEntity(World world, int meta) 
{
	return new TileEntityEngineerPanel();
}

@Override
public int getRenderType()
{
	return 3;
}

@Override
public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumFacing side, float hitX, float hitY, float hitZ)
{
	if(!world.isRemote)
	{
		TileEntityEngineerPanel engineerPanel = (TileEntityEngineerPanel) world.getTileEntity(pos);
		engineerPanel.setAvailibleProjects();
		player.openGui(XcomMain.instance, XcomGuiHandler.engineerPanelGui, world, pos.getX(), pos.getY(), pos.getZ());
	}

	return true;
}

}

 

 

TileEntity Class:

package com.littlepup.xcom.blocks.engineering_block;

import java.util.List;

import com.google.common.collect.Lists;
import com.littlepup.xcom.blocks.research_block.TileEntityResearchPanel;
import com.littlepup.xcom.items.ItemAlienMaterials;
import com.littlepup.xcom.items.ItemAlienSpecies;
import com.littlepup.xcom.items.ItemAlienTrophy;
import com.littlepup.xcom.other.Utilities;
import com.littlepup.xcom.packets.PacketsMain;
import com.littlepup.xcom.packets.xcom_base.BaseInfoMessage;
import com.littlepup.xcom.packets.xcom_base.BaseRequestInfoMessage;
import com.littlepup.xcom.projects.XcomEngineeringProjects;
import com.littlepup.xcom.projects.engineering.EngineeringProject;
import com.littlepup.xcom.projects.research.ResearchProject;
import com.littlepup.xcom.xcom_base.XcomBase;
import com.littlepup.xcom.xcom_base.XcomBaseCollection;

import net.minecraft.client.renderer.texture.ITickable;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
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.ChatComponentText;
import net.minecraft.util.IChatComponent;
import net.minecraftforge.fml.common.network.NetworkRegistry.TargetPoint;

public class TileEntityEngineerPanel extends TileEntity implements IInventory, ITickable
{
public TileEntityEngineerPanel()
{
	this.storedMaterials = new ItemStack[this.getSizeInventory()];
}

public int associatedBaseID;
public XcomBase associatedBase;
public static final int inventorySize = 12;
public ItemStack[] storedMaterials = new ItemStack[this.inventorySize];
private ItemStack[] usingMaterials = {null, null, null, null, null, null};
boolean isManufacturing = false;
EngineeringProject currentProject;
List allProjects = XcomEngineeringProjects.getEngineeringProjects();
public List availibleProjects = Lists.newArrayList();
public int currentProjectID = 0;
public long timeNeeded;
public int amount = 1;

public void updateBaseInfo(int baseID)
{
	this.associatedBaseID = baseID;
	if(worldObj.isRemote)
	{
		BaseRequestInfoMessage askInfoMessage = new BaseRequestInfoMessage(this.getPos(), baseID);
		PacketsMain.xcom.sendToServer(askInfoMessage);
	}
	else
	{
		XcomBase base = (XcomBase) XcomBaseCollection.getBaseCollection(worldObj).xcom_bases.get(this.associatedBaseID);
		this.associatedBase = base;
		BaseInfoMessage message = new BaseInfoMessage(base, this.getPos());
		PacketsMain.xcom.sendToAllAround(message, new TargetPoint(this.getWorld().provider.getDimensionId(), this.getPos().getX(), this.getPos().getY(), this.getPos().getZ(), 256.0D));
	}
	this.markDirty();
}

@Override
public void tick()
{
	if(this.isManufacturing())
	{
		EngineeringProject eProj = this.currentProject;
		if(eProj.timeCost == 0)
		{
			this.endManufacturing(eProj);
		}
		else if(this.timeNeeded <= 0)
		{
			this.endManufacturing(eProj);
		}
		else
		{
			this.timeNeeded--;
			this.markDirty();
		}
	}
}

public void startManufacturing(EngineeringProject project)
{
	ItemStack[] needed = project.getMaterialsNeeded();
	if(needed != null)
	{
		for(int l = 0; l < needed.length; l++)
		{
			int i1 = ((l + (needed.length * this.amount)) % (needed.length * this.amount));
			int used = needed[i1].stackSize * this.amount - this.getStackInSlot(l).stackSize;
			if(used > 1)
			{
				ItemStack stack = new ItemStack(needed[i1].getItem(), used, needed[i1].getMetadata());
				this.setInventorySlotContents(l, stack);
			}
			else
			{
				if(needed[i1].getItem() instanceof ItemAlienMaterials || needed[i1].getItem() instanceof ItemAlienTrophy)
				{
					used -= 64;
				}
				else
				{
					used--;
				}
				this.setInventorySlotContents(l, null);
			}
		}
	}
	if(project.timeCost == 0)
	{
		ItemStack[] output = project.getOutput();
		if(output != null)
		{
			for(int l = 0; l < output.length * this.amount; l++)
			{
				int i1 = (l + output.length) % output.length;
				ItemStack stack;
				if(output[i1].getHasSubtypes())
				{
					stack = new ItemStack(output[i1].getItem(), 1, output[i1].getMetadata());
				}
				else
				{
					stack = new ItemStack(output[i1].getItem(), 1, 0);
				}
				this.setInventorySlotContents(l + 6, stack);
			}
		}
	}
	else
	{
		this.currentProject = project;
		this.timeNeeded = project.timeCost;
		this.isManufacturing = true;
		this.markDirty();
	}
}

public void cancelManufacturing(EngineeringProject project)
{
	if(worldObj.isRemote){
		System.out.println("The cancelManufacturing method is being called clientSide.");
	}
	this.associatedBase.cash += project.getMoneyCost() * this.amount;
	for(int l = 0; l < 6; l++)
	{
		this.setInventorySlotContents(l, this.usingMaterials[l]);
	}
	this.isManufacturing = false;
	this.currentProject = null;
	this.markDirty();
}

public void endManufacturing(EngineeringProject project)
{
	if(worldObj.isRemote)
	{
		System.out.println("The endManufacturing method is being called clientside.");
	}
	int cashRefund = Utilities.roundDoubles(currentProject.getMoneyCost() * (this.associatedBase.numberWorkshops * 0.10 + this.associatedBase.engineeringAdjBonus));
	this.associatedBase.cash += cashRefund;
	EngineeringProject eProj = this.currentProject;
	for(int l = 0; l < eProj.getOutput().length * amount; l++)
	{
		this.setInventorySlotContents(l + 6, eProj.getOutput()[(eProj.getOutput().length + l) % eProj.getOutput().length]);
	}
	this.currentProject = null;
	this.isManufacturing = false;
	this.markDirty();
}

public int getRoomNeeded(EngineeringProject project)
{
	ItemStack[] stack = project.getOutput();
	int slotsNeeded = 0;
	for(int i2 = 0; i2 < stack.length; i2++)
	{
		int maxSize;
		if(stack[i2].getItem() instanceof ItemAlienMaterials || stack[i2].getItem() instanceof ItemAlienSpecies)
		{
			maxSize = 64;
		}
		else
		{
			maxSize = 1;
		}
		slotsNeeded += Math.ceil(amount/maxSize);
	}
	return slotsNeeded;
}

public void setAvailibleProjects()
{
	if(this.worldObj.isRemote || this.associatedBase == null)
	{
		this.updateBaseInfo(associatedBaseID);
	}
	TileEntityResearchPanel rPanel = (TileEntityResearchPanel) this.worldObj.getTileEntity(associatedBase.rPos);
	List researched = rPanel.researchedProjects;
	this.availibleProjects.clear();
	for(int i1 = 0; i1 < allProjects.size(); i1++)
	{
		ResearchProject needed = ((EngineeringProject) allProjects.get(i1)).getResearchNeeded();

		if(needed == null)
		{
			this.availibleProjects.add(allProjects.get(i1));
		}
		else
		{
			if(researched.contains(needed))
			{
				this.availibleProjects.add(allProjects.get(i1));
			}
		}
	}
}

public boolean isManufacturing()
{
	return this.isManufacturing;
}

@Override
public String getName() 
{
	return "";
}

@Override
public boolean hasCustomName() 
{
	return false;
}

@Override
public int getSizeInventory() 
{
	return this.inventorySize;
}

@Override
public ItemStack getStackInSlot(int index) 
{
	ItemStack[] stack = this.storedMaterials;

	if(index >= stack.length)
	{
		index -= 36;
	}

	return this.storedMaterials[index];
}

@Override
public ItemStack decrStackSize(int index, int count) 
{
	if(this.getStackInSlot(index) != null)
	{
		ItemStack stack;
		if(this.getStackInSlot(index).stackSize <= count)
		{
			stack = this.getStackInSlot(index);
			this.setInventorySlotContents(index, null);
			this.markDirty();
			return stack;
		}
		else
		{
			stack = this.getStackInSlot(index).splitStack(count);
			if(this.getStackInSlot(index).stackSize <= 0)
			{
				this.setInventorySlotContents(index, null);
			}
			else
			{
				this.setInventorySlotContents(index, this.getStackInSlot(index));
			}

			this.markDirty();
			return stack;
		}
	}
	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.storedMaterials[index] = stack;
    this.markDirty();
}

@Override
public int getInventoryStackLimit() 
{
	return 64;
}

@Override
public boolean isUseableByPlayer(EntityPlayer player) 
{
	return Utilities.getDistance(player.getPosition(), this.getPos()) < 8.0D;
}

@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);
	}
}

@Override
public void writeToNBT(NBTTagCompound nbtParent)
{
	super.writeToNBT(nbtParent);
	nbtParent.setInteger("baseID", this.associatedBaseID);
	NBTTagList tag_list = new NBTTagList();
	for(int l = 0; l < this.storedMaterials.length; ++l)
	{
		if(this.storedMaterials[l] != null)
		{
			NBTTagCompound item = new NBTTagCompound();
			item.setInteger("slot", l);
			this.storedMaterials[l].writeToNBT(item);
			tag_list.appendTag(item);
		}
	}
	nbtParent.setTag("stored", tag_list);
	for(int l = 0; l < nbtParent.getTagList("stored", 10).tagCount(); l++)
	{
		NBTTagList list = nbtParent.getTagList("stored", 10);
		NBTTagCompound nbt = list.getCompoundTagAt(l);
	}
}

@Override
public void readFromNBT(NBTTagCompound nbtParent)
{
	super.readFromNBT(nbtParent);
	this.associatedBaseID = nbtParent.getInteger("baseID");
	this.storedMaterials = new ItemStack[this.getSizeInventory()];
	NBTTagList nbtList = (NBTTagList) nbtParent.getTag("stored");
	if(nbtList != null)
	{
		for(int i1 = 0; i1 < nbtList.tagCount(); ++i1)
		{
			NBTTagCompound compound = nbtList.getCompoundTagAt(i1);
			int i2 = compound.getInteger("slot");
			if(i2 >= 0 && i2 < this.inventorySize)
			{
				this.storedMaterials[i2] = ItemStack.loadItemStackFromNBT(compound);
			}
		}
	}
}

@Override
public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity packet)
{
	this.readFromNBT(packet.getNbtCompound());
}

@Override
public Packet getDescriptionPacket()
{
	NBTTagCompound nbt = new NBTTagCompound();
	this.writeToNBT(nbt);
	int meta = this.getBlockMetadata();
	return new S35PacketUpdateTileEntity(this.getPos(), meta, nbt);
}

@Override
public IChatComponent getDisplayName() 
{
	return new ChatComponentText("Engineering");
}
}

 

 

Gui Class:

package com.littlepup.xcom.blocks.engineering_block;

import java.util.List;

import com.littlepup.xcom.packets.PacketsMain;
import com.littlepup.xcom.packets.engineering.EngineerToServerMessage;
import com.littlepup.xcom.projects.engineering.EngineeringProject;

import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.MathHelper;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

@SideOnly(Side.CLIENT)
public class GuiEngineerPanel extends GuiContainer
{
public GuiEngineerPanel(World world, EntityPlayer player, TileEntity tileEntity) 
{
	super(new ContainerEngineerPanel(world, player, tileEntity));
	this.ePanel = (TileEntityEngineerPanel) tileEntity;
	EngineerToServerMessage updateProjectsMessage = new EngineerToServerMessage((TileEntityEngineerPanel) world.getTileEntity(ePanel.getPos()), -1, true);
	PacketsMain.xcom.sendToServer(updateProjectsMessage);
	this.availibleProjects = this.ePanel.availibleProjects;
}

private final ResourceLocation engineeringGui = new ResourceLocation("xcom:textures/gui/engineer_panel.png");

TileEntityEngineerPanel ePanel;
List availibleProjects;

@Override
public void actionPerformed(GuiButton button)
{
	EngineerToServerMessage message = null;
	switch(button.id)
	{
		case 0:
			message = new EngineerToServerMessage(this.ePanel, 0, false);
			break;
		case 1:
			message = new EngineerToServerMessage(this.ePanel, 1, false);
			break;
		case 2:
			this.ePanel.amount--;
			message = new EngineerToServerMessage(this.ePanel, 2, false);
			break;
		case 3:
			this.ePanel.amount++;
			message = new EngineerToServerMessage(this.ePanel, 3, false);
			break;
		case 4:
			this.ePanel.currentProjectID--;
			message = new EngineerToServerMessage(this.ePanel, 4, false);
			break;
		case 5:
			this.ePanel.currentProjectID++;
			message = new EngineerToServerMessage(this.ePanel, 5, false);
			break;
		default:
			message = new EngineerToServerMessage();
			break;
	}
	PacketsMain.xcom.sendToServer(message);
	this.inventorySlots.detectAndSendChanges();
}

@Override
protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) 
{
	GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
	this.mc.getTextureManager().bindTexture(engineeringGui);
        int k = (this.width - this.xSize) / 2;
        int l = (this.height - this.ySize) / 2;
        this.drawTexturedModalRect(k, l, 0, 0, this.xSize, this.ySize);
}

private void drawTimeRemaining(long ticks) 
{
	if(ticks != 0)
	{
		int days = MathHelper.floor_double(ticks / 24000);
		int min = MathHelper.floor_double((ticks - days * 24000)/1200);
		int sec = MathHelper.floor_double((ticks - (days * 24000 + min * 1200))/20);

		this.fontRendererObj.drawString("D: " + days, 130, 20, 80000);
		this.fontRendererObj.drawString("M: " + min, 130, 30, 80000);
		this.fontRendererObj.drawString("S: " + sec, 130, 40, 80000);
	}
}

@Override
public void initGui()
{
	super.initGui();
	this.buttonList.add(new GuiButton(0, this.guiLeft + 45, this.guiTop + 15, 36, 12, "BEGIN"));
	this.buttonList.add(new GuiButton(1, this.guiLeft + 45, this.guiTop + 27, 36, 12, "CANCEL"));
	this.buttonList.add(new GuiButton(2, this.guiLeft + 45, this.guiTop + 39, 12, 12, "-"));
	this.buttonList.add(new GuiButton(3, this.guiLeft + 69, this.guiTop + 39, 12, 12, "+"));
	this.buttonList.add(new GuiButton(4, this.guiLeft + 85, this.guiTop + 58, 9, 12, "<"));
	this.buttonList.add(new GuiButton(5, this.guiLeft + 118, this.guiTop + 58, 9, 12, ">"));
}

@Override
public void updateScreen()
{
	super.updateScreen();
	if(this.ePanel.isManufacturing())
	{
		((GuiButton)this.buttonList.get(0)).enabled = false;
		((GuiButton)this.buttonList.get(1)).enabled = true;
		this.drawTimeRemaining(this.ePanel.currentProject.timeCost);
	}
	else
	{
		((GuiButton)this.buttonList.get(0)).enabled = true;
		((GuiButton)this.buttonList.get(1)).enabled = false;
		if(this.ePanel.currentProjectID == 0)
		{
			((GuiButton)(this.buttonList.get(4))).enabled = false;
		}
		if(this.ePanel.currentProjectID == this.availibleProjects.size() - 1)
		{
			((GuiButton)(this.buttonList.get(5))).enabled = false;
		}
		if(this.ePanel.currentProjectID != 0 && this.ePanel.currentProjectID != this.availibleProjects.size() - 1)
		{
			((GuiButton)(this.buttonList.get(4))).enabled = true;
			((GuiButton)(this.buttonList.get(5))).enabled = true;
		}

		if(this.ePanel.amount == 1)
		{
			((GuiButton)(this.buttonList.get(2))).enabled = false;
		}
		else if(this.ePanel.getRoomNeeded((EngineeringProject) this.availibleProjects.get(ePanel.currentProjectID)) > 6)
		{
			((GuiButton)(this.buttonList.get(3))).enabled = false;
		}
		else
		{
			((GuiButton)(this.buttonList.get(2))).enabled = true;
			((GuiButton)(this.buttonList.get(3))).enabled = true;
		}
	}
}
}

 

Container Class:

 

package com.littlepup.xcom.blocks.engineering_block;

import com.littlepup.xcom.other.Utilities;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.ICrafting;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;

public class ContainerEngineerPanel extends Container
{
public ContainerEngineerPanel(World world, EntityPlayer player, TileEntity tileEntity) 
{
	this.ePanel = (TileEntityEngineerPanel) tileEntity;
	worldObj = world;
	usingPlayer = player;
	playerInv = player.inventory;
	panelInv = (IInventory) tileEntity;
	ePanel = (TileEntityEngineerPanel) tileEntity;
	this.addSlots();
}

World worldObj;
IInventory playerInv;
IInventory panelInv;
EntityPlayer usingPlayer;
TileEntityEngineerPanel ePanel;

@Override
public void addCraftingToCrafters(ICrafting crafting)
{
	super.addCraftingToCrafters(crafting);
	crafting.func_175173_a(this, this.panelInv);
}

private void addSlots()
{
	/*Slots 0-35 are the player's inventory
	 * Note: since the engineer panel and player's inventory are
	 * seperate, the slots can have the same ID if needed.
	 * Slots 36-41 are the engineer panel's input
	 * Slots 42-49 are the engineer panel's output
	 */

	//Player's non-hotbar inventory
	for(int x = 0; x < 9; ++x)
	{
		for(int y = 0; y < 3; ++y)
		{
			this.addSlotToContainer(new Slot(playerInv, x * 3 + y, 8 + x * 18, 84 + y * 18));
		}
	}
	//Player's hotbar inventory
	for(int x = 0; x < 9; ++x)
	{
		this.addSlotToContainer(new Slot(playerInv, x + 27, 8 + x * 18, 142));
	}

	//Engineer panel block's input inventory
	for(int x = 0; x < 2; ++x)
	{
		for(int y = 0; y < 3; ++y)
		{
			this.addSlotToContainer(new Slot(panelInv, x * 3 + y + 36, 9 + x * 18, 16 + y * 18));
		}
	}
	//Engineer panel block's output inventory
	for(int x = 0; x < 2; ++x)
	{
		for(int y = 0; y < 3; ++y)
		{
			this.addSlotToContainer(new Slot(panelInv, x * 3 + y + 42, 133 + x * 18, 16 + y * 18));
		}
	}
}

@Override
public boolean canInteractWith(EntityPlayer player) 
{
	return Utilities.getDistance(player.getPosition(), ePanel.getPos()) < 8.0D;
}

@Override
public ItemStack transferStackInSlot(EntityPlayer player, int slotID)
{
	ItemStack stack1 = null;
	Slot slot = this.getSlot(slotID);
	IInventory inventory = slot.inventory;
	if(slot != null && slot.getHasStack())
	{
		ItemStack stack2 = slot.getStack();
		stack1 = stack2.copy();
		//The slot is in the tile entity
		if(slotID >= 36)
		{
			if(!this.mergeItemStack(stack1, 36, 50, false))
			{
				return null;
			}
		}
		else if(!this.mergeItemStack(stack1, 36, 50, false))
		{
			return null;
		}

		if(stack1.stackSize == 0)
		{
			this.putStackInSlot(slotID, null);
		}
		else
		{
			slot.onSlotChanged();
		}
	}
	return stack1;
}

}

[[1.8.9] GUI ; Questions]

I've been using this website and some of the linked ones. They've been very useful.

 

http://jabelarminecraft.blogspot.com/

[[1.8] Syncing Gui Client and Server]

Okay, I'll look into using the IMessage and IMessageHandler. Thanks for the help.

[[1.8] Syncing Gui Client and Server]

Is there any Server output in the Log ?

 

There hasn't been any now that you mention it.

 

you need to use packet handling if something like click at this button to start the progress should happen

 

I've been trying to use the writeToNBT and readFromNBT methods from the TileEntity class. Is that wrong? Should I be using the custom forge packets or something like that?

 

Thanks for the help.

 

[[1.8] Syncing Gui Client and Server]

I'm trying to make a tile entity that when one presses a button on it, it will make an item. Whenever I try to take the item or click it for that matter, it disappears. Also, I've been reading on how the "server" in Minecraft should handle everything to prevent hacking. I'm not sure if I'm doing that right and I was hoping for some help on resolving this issue with the items disappearing and just being sure that hacking won't happen with my mod. Thanks to anyone that helps.

 

Block Class:

package com.littlepup.xcom.blocks.engineering_block;

import com.littlepup.xcom.XcomMain;
import com.littlepup.xcom.packets.XcomGuiHandler;

import net.minecraft.block.Block;
import net.minecraft.block.BlockContainer;
import net.minecraft.block.material.Material;
import net.minecraft.block.state.IBlockState;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.world.World;

public class BlockEngineeringPanel extends BlockContainer
{
public BlockEngineeringPanel(Material materialIn) 
{
	super(materialIn);
	this.setBlockUnbreakable();
	this.setCreativeTab(XcomMain.xcomTab);
	this.setUnlocalizedName("engineering_block");
}

@Override
public TileEntity createNewTileEntity(World world, int meta) 
{
	return new TileEntityEngineerPanel();
}

@Override
public int getRenderType()
{
	return 3;
}

@Override
public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumFacing side, float hitX, float hitY, float hitZ)
{
	if(!world.isRemote)
	{
		player.openGui(XcomMain.instance, XcomGuiHandler.engineerPanelGui, world, pos.getX(), pos.getY(), pos.getZ());
	}

	return true;
}

}

 

TileEntity Class

package com.littlepup.xcom.blocks.engineering_block;

import java.util.List;

import com.google.common.collect.Lists;
import com.littlepup.xcom.blocks.control_block.TileEntityControlPanel;
import com.littlepup.xcom.blocks.research_block.TileEntityResearchPanel;
import com.littlepup.xcom.items.ItemAlienMaterials;
import com.littlepup.xcom.items.ItemAlienSpecies;
import com.littlepup.xcom.items.ItemAlienTrophy;
import com.littlepup.xcom.projects.EngineeringProject;
import com.littlepup.xcom.projects.ResearchProject;
import com.littlepup.xcom.projects.XcomEngineeringProjects;
import com.littlepup.xcom.utilities.Utilities;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.InventoryPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
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.server.gui.IUpdatePlayerListBox;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.BlockPos;
import net.minecraft.util.ChatComponentText;
import net.minecraft.util.IChatComponent;
import net.minecraft.world.IInteractionObject;

public class TileEntityEngineerPanel extends TileEntity implements IInventory, IUpdatePlayerListBox, IInteractionObject
{
public TileEntityEngineerPanel()
{
	this.storedMaterials = new ItemStack[this.getSizeInventory()];
}

public TileEntityControlPanel associatedBase;
public ItemStack[] storedMaterials;
private ItemStack[] usingMaterials = {null, null, null, null, null, null};
boolean isManufacturing = false;
EngineeringProject currentProject;
List allProjects = XcomEngineeringProjects.getEngineeringProjects();
List availibleProjects;
long timeNeeded;
int amount = 1;
int assocX = -1;
int assocY = -1;
int assocZ = -1;

public void setControlBlock(BlockPos pos)
{
	this.assocX = pos.getX();
	this.assocY = pos.getY();
	this.assocZ = pos.getZ();
	System.out.println("The associated block position is " + assocX + ", " + 
						assocY + ", " + assocZ);

	this.worldObj.markBlockForUpdate(this.getPos());
	this.markDirty();
}

@Override
public void update()
{
	if(this.isManufacturing())
	{
		EngineeringProject eProj = this.currentProject;
		if(eProj.timeCost == 0)
		{
			this.endManufacturing(eProj);
		}
		else if(this.timeNeeded <= 0)
		{
			this.endManufacturing(eProj);
		}
		else
		{
			this.timeNeeded--;
		}
	}
}

public void startManufacturing(EngineeringProject project)
{
	ItemStack[] needed = project.getMaterialsNeeded();
	if(needed != null)
	{
		for(int l = 0; l < needed.length; l++)
		{
			int i1 = ((l + (needed.length * this.amount)) % (needed.length * this.amount));
			int used = needed[i1].stackSize * this.amount - this.getStackInSlot(l).stackSize;
			if(used > 1)
			{
				ItemStack stack = new ItemStack(needed[i1].getItem(), used, needed[i1].getMetadata());
				this.setInventorySlotContents(l, stack);
			}
			else
			{
				if(needed[i1].getItem() instanceof ItemAlienMaterials || needed[i1].getItem() instanceof ItemAlienTrophy)
				{
					used -= 64;
				}
				else
				{
					used--;
				}
				this.setInventorySlotContents(l, null);
			}
		}
	}
	else
	{
		System.out.println("No materials were needed.");
	}
	if(project.timeCost == 0)
	{
		ItemStack[] output = project.getOutput();
		if(output != null)
		{
			for(int l = 0; l < output.length * this.amount; l++)
			{
				int i1 = (l + output.length) % output.length;
				System.out.println("The value of the i1 variable is " + i1);
				ItemStack stack;
				if(output[i1].getHasSubtypes())
				{
					stack = new ItemStack(output[i1].getItem(), 1, output[i1].getMetadata());
				}
				else
				{
					stack = new ItemStack(output[i1].getItem(), 1, 0);
				}
				this.setInventorySlotContents(l + 6, stack);
				System.out.println("The tile entity slot " + l + " has a/an " + this.getStackInSlot(l + 6).getItem().getUnlocalizedName());
			}
		}
		else
		{
			System.out.println("The project output is null.");
		}
	}
	else
	{
		this.currentProject = project;
		this.timeNeeded = project.timeCost;
		this.isManufacturing = true;
		this.worldObj.markBlockForUpdate(this.getPos());
		this.markDirty();
	}
}

public void cancelManufacturing(EngineeringProject project)
{
	this.associatedBase.cash += project.getMoneyCost() * this.amount;
	for(int l = 0; l < 6; l++)
	{
		this.setInventorySlotContents(l, this.usingMaterials[l]);
	}
	this.isManufacturing = false;
	this.currentProject = null;
}

public void endManufacturing(EngineeringProject project)
{
	int cashRefund = Utilities.roundDoubles(currentProject.getMoneyCost() * this.associatedBase.numberWorkshops * 0.10);
	this.associatedBase.cash += cashRefund;
	EngineeringProject eProj = this.currentProject;
	for(int l = 0; l < eProj.getOutput().length * amount; l++)
	{
		this.setInventorySlotContents(l + 6, eProj.getOutput()[(eProj.getOutput().length + l) % eProj.getOutput().length]);
	}
	this.currentProject = null;
	this.isManufacturing = false;
}

public int getRoomNeeded(EngineeringProject project)
{
	ItemStack[] stack = project.getOutput();
	int slotsNeeded = 0;
	for(int i2 = 0; i2 < stack.length; i2++)
	{
		int maxSize;
		if(stack[i2].getItem() instanceof ItemAlienMaterials || stack[i2].getItem() instanceof ItemAlienSpecies)
		{
			maxSize = 64;
		}
		else
		{
			maxSize = 1;
		}
		slotsNeeded += Math.ceil(amount/maxSize);
	}
	return slotsNeeded;
}

public List getAvailibleProjects()
{
	System.out.println("The associatedBasePos coordinates are " + assocX + ", " + 
						assocY + ", " + assocZ);
	this.associatedBase = (TileEntityControlPanel) this.worldObj.getTileEntity(new BlockPos(this.assocX, this.assocY, this.assocZ));
	BlockPos rPanelL = new BlockPos(this.associatedBase.rPanelPosX, this.associatedBase.rPanelPosY, this.associatedBase.rPanelPosZ);
	List researched = ((TileEntityResearchPanel)(this.worldObj.getTileEntity(rPanelL))).researchedProjects;
	List projects = Lists.newArrayList();

	for(int i1 = 0; i1 < allProjects.size(); i1++)
	{
		ResearchProject needed = ((EngineeringProject) allProjects.get(i1)).getResearchNeeded();

		if(needed == null)
		{
			projects.add(allProjects.get(i1));
		}
		else
		{
			if(researched.contains(needed))
			{
				projects.add(allProjects.get(i1));
			}
		}
	}
	return projects;
}

public boolean isManufacturing()
{
	return this.isManufacturing;
}

@Override
public String getName() 
{
	return "";
}

@Override
public boolean hasCustomName() 
{
	return false;
}

@Override
public int getSizeInventory() 
{
	return 12;
}

@Override
public ItemStack getStackInSlot(int index) 
{
	ItemStack[] stack = this.storedMaterials;

	if(index >= stack.length)
	{
		index -= 36;
	}

	return this.storedMaterials[index];
}

@Override
public ItemStack decrStackSize(int index, int count) 
{
	if(this.getStackInSlot(index) != null)
	{
		ItemStack stack;

		if(this.getStackInSlot(index).stackSize <= count)
		{
			stack = this.getStackInSlot(index);
			this.setInventorySlotContents(index, null);
			this.markDirty();
			return stack;
		}
		else
		{
			stack = this.getStackInSlot(index).splitStack(count);

			if(this.getStackInSlot(index).stackSize <= 0)
			{
				this.setInventorySlotContents(index, null);
			}
			else
			{
				this.setInventorySlotContents(index, this.getStackInSlot(index));
			}

			this.markDirty();
			return stack;
		}
	}
	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.storedMaterials[index] = stack;
    this.worldObj.markBlockForUpdate(this.getPos());
    this.markDirty();
}

@Override
public int getInventoryStackLimit() 
{
	return 64;
}

@Override
public boolean isUseableByPlayer(EntityPlayer player) 
{
	return Utilities.getDistance(player.getPosition(), this.getPos()) < 8.0D;
}

@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);
	}
}

@Override
public Container createContainer(InventoryPlayer pInventory, EntityPlayer player) 
{
	if(!this.worldObj.isRemote)
	{
		return new ContainerEngineerPanel(this.worldObj, player, this);
	}
	return null;
}

@Override
public String getGuiID() 
{
	return "xcom:engineer_panel";
}

@Override
public void writeToNBT(NBTTagCompound nbtParent)
{
	System.out.println("The writeToNBT is being called.");
	super.writeToNBT(nbtParent);
	nbtParent.setInteger("associatedX", this.assocX);
	nbtParent.setInteger("associatedY", this.assocY);
	nbtParent.setInteger("associatedZ", this.assocZ);
	System.out.println("The tile entity's nbt associated BlockPos is being set to " + this.assocX + ", " + this.assocY + ", " + this.assocZ);

	NBTTagList tag_list = new NBTTagList();

	for(int l = 0; l < this.storedMaterials.length; ++l)
	{
		if(this.storedMaterials[l] != null)
		{
			NBTTagCompound item = new NBTTagCompound();
			item.setInteger("slot", l);
			this.storedMaterials[l].writeToNBT(item);
			tag_list.appendTag(item);
		}
		else
		{
			System.out.println("The storedMaterial at " + l + " is null.");
		}
	}
	nbtParent.setTag("stored", tag_list);
	for(int l = 0; l < nbtParent.getTagList("stored", 10).tagCount(); l++)
	{
		NBTTagList list = nbtParent.getTagList("stored", 10);
		NBTTagCompound nbt = list.getCompoundTagAt(l);
		System.out.println("The item " + ItemStack.loadItemStackFromNBT(nbt).getItem().getUnlocalizedName() + " in slot " + l);
	}
	if(this.worldObj != null)
	{
		if(this.worldObj.isRemote)
		{
			System.out.println("This was all for a client tile entity.");
		}
		else
		{
			System.out.println("This was all for a server tile entity.");
		}
	}	
}

@Override
public void readFromNBT(NBTTagCompound nbtParent)
{
	super.readFromNBT(nbtParent);
	this.assocX = nbtParent.getInteger("associatedX");
	this.assocY = nbtParent.getInteger("associatedY");
	this.assocZ = nbtParent.getInteger("associatedZ");
	this.storedMaterials = new ItemStack[this.getSizeInventory()];

	NBTTagList nbtList = (NBTTagList) nbtParent.getTag("stored");

	if(nbtList != null)
	{
		System.out.println("The are " + nbtList.tagCount() + " tags in the list.");
		for(int i1 = 0; i1 < nbtList.tagCount(); ++i1)
		{
			NBTTagCompound compound = nbtList.getCompoundTagAt(i1);
			int i2 = compound.getInteger("slot");
			System.out.println("The slot number is " + i2);
			if(i2 >= 0 && i2 < this.storedMaterials.length)
			{
				this.storedMaterials[i1] = ItemStack.loadItemStackFromNBT(compound);
				System.out.println("The itemstack is being loaded at slot" + i1);
			}
		}
	}
	else
	{
		System.out.println("The nbtList variable in readFromNBT is null.");
	}
	if(this.worldObj != null)
	{
		if(this.worldObj.isRemote)
		{
			System.out.println("This was all for a client tile entity.");
		}
		else
		{
			System.out.println("This was all for a server tile entity.");
		}
	}
}

@Override
public void onDataPacket(NetworkManager net, S35PacketUpdateTileEntity packet)
{
	this.readFromNBT(packet.getNbtCompound());
	System.out.println("The onDataPacket method is done.");
}

@Override
public Packet getDescriptionPacket()
{
	NBTTagCompound nbt = new NBTTagCompound();
	this.writeToNBT(nbt);
	int meta = this.getBlockMetadata();
	System.out.println("The getDescriptionPacket method is almost done.");
	return new S35PacketUpdateTileEntity(this.getPos(), meta, nbt);
}

@Override
public IChatComponent getDisplayName() 
{
	return new ChatComponentText("Engineering");
}
}

 

Gui Class:

 

package com.littlepup.xcom.blocks.engineering_block;

import java.util.List;

import com.littlepup.xcom.projects.EngineeringProject;

import net.minecraft.client.gui.GuiButton;
import net.minecraft.client.gui.inventory.GuiContainer;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Slot;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.MathHelper;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

@SideOnly(Side.CLIENT)
public class GuiEngineerPanel extends GuiContainer
{
public GuiEngineerPanel(World world, EntityPlayer player, TileEntity tileEntity) 
{
	super(new ContainerEngineerPanel(world, player, tileEntity));
	this.ePanel = (TileEntityEngineerPanel) tileEntity;
	this.availibleProjects = this.ePanel.getAvailibleProjects();

	System.out.println("The amount of availible projects is " + availibleProjects.size());
	for(int l = 0; l < availibleProjects.size(); l++)
	{
		String title = ((EngineeringProject)this.availibleProjects.get(l)).getDescription()[0];
		System.out.println("The availible projects are " + l + " " + title);
	}
}

private final ResourceLocation engineeringGui = new ResourceLocation("xcom:textures/gui/engineer_panel.png");

TileEntityEngineerPanel ePanel;
int currentProjectID = 0;
List availibleProjects;

@Override
public void actionPerformed(GuiButton button)
{
	switch(button.id)
	{
		case 0:
			this.ePanel.startManufacturing((EngineeringProject)(availibleProjects.get(currentProjectID)));
			if(this.ePanel.getWorld().isRemote)
			{
				System.out.println("This is a client world.");
			}
			else
			{
				System.out.println("This is a server world.");
			}
			this.ePanel.markDirty();
			System.out.println("The project " + ((EngineeringProject)(availibleProjects.get(currentProjectID))).getDescription()[0]
					+ " has been decided on.");
			break;
		case 1:
			this.ePanel.cancelManufacturing((EngineeringProject)(availibleProjects.get(currentProjectID)));
			System.out.println("The project " + ((EngineeringProject)(availibleProjects.get(currentProjectID))).getDescription()[0]
					+ "has been canceled.");
			break;
		case 2:
			this.ePanel.amount--;
			System.out.println("The new amount is " + this.ePanel.amount);
			break;
		case 3:
			this.ePanel.amount++;
			System.out.println("The new amount is " + this.ePanel.amount);
			break;
		case 4:
			this.currentProjectID--;
			System.out.println("The new project ID is " + this.currentProjectID);
			break;
		case 5:
			this.currentProjectID++;
			System.out.println("The new project ID is " + this.currentProjectID);
			break;
	}
}

@Override
protected void drawGuiContainerBackgroundLayer(float partialTicks, int mouseX, int mouseY) 
{
	GlStateManager.color(1.0F, 1.0F, 1.0F, 1.0F);
	this.mc.getTextureManager().bindTexture(engineeringGui);
        int k = (this.width - this.xSize) / 2;
        int l = (this.height - this.ySize) / 2;
        this.drawTexturedModalRect(k, l, 0, 0, this.xSize, this.ySize);
}

private void drawTimeRemaining(long ticks) 
{
	if(ticks != 0)
	{
		int days = MathHelper.floor_double(ticks / 24000);
		int min = MathHelper.floor_double((ticks - days * 24000)/1200);
		int sec = MathHelper.floor_double((ticks - (days * 24000 + min * 1200))/20);

		this.fontRendererObj.drawString("D: " + days, 130, 20, 80000);
		this.fontRendererObj.drawString("M: " + min, 130, 30, 80000);
		this.fontRendererObj.drawString("S: " + sec, 130, 40, 80000);
	}
}

@Override
public void initGui()
{
	super.initGui();
	this.buttonList.add(new GuiButton(0, this.guiLeft + 45, this.guiTop + 15, 36, 12, "BEGIN"));
	this.buttonList.add(new GuiButton(1, this.guiLeft + 45, this.guiTop + 27, 36, 12, "CANCEL"));
	this.buttonList.add(new GuiButton(2, this.guiLeft + 45, this.guiTop + 39, 12, 12, "-"));
	this.buttonList.add(new GuiButton(3, this.guiLeft + 69, this.guiTop + 39, 12, 12, "+"));
	this.buttonList.add(new GuiButton(4, this.guiLeft + 85, this.guiTop + 58, 9, 12, "<"));
	this.buttonList.add(new GuiButton(5, this.guiLeft + 118, this.guiTop + 58, 9, 12, ">"));
}

@Override
public void updateScreen()
{
	super.updateScreen();
	if(this.ePanel.isManufacturing())
	{
		this.drawTimeRemaining(this.ePanel.currentProject.timeCost);
	}
	else
	{
		((GuiButton)this.buttonList.get(1)).enabled = false;
		if(this.currentProjectID == 0)
		{
			((GuiButton)(this.buttonList.get(4))).enabled = false;
		}
		else if(this.currentProjectID == this.availibleProjects.size() - 1)
		{
			((GuiButton)(this.buttonList.get(5))).enabled = false;
		}
		else
		{
			((GuiButton)(this.buttonList.get(4))).enabled = true;
			((GuiButton)(this.buttonList.get(5))).enabled = true;
		}

		if(this.ePanel.amount == 1)
		{
			((GuiButton)(this.buttonList.get(2))).enabled = false;
		}
		else if(this.ePanel.getRoomNeeded((EngineeringProject) this.availibleProjects.get(currentProjectID)) > 6)
		{
			((GuiButton)(this.buttonList.get(3))).enabled = false;
		}
		else
		{
			((GuiButton)(this.buttonList.get(2))).enabled = true;
			((GuiButton)(this.buttonList.get(3))).enabled = true;
		}
	}
}
}

 

Container Class:

 

package com.littlepup.xcom.blocks.engineering_block;

import com.littlepup.xcom.utilities.Utilities;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.inventory.Container;
import net.minecraft.inventory.ICrafting;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.Slot;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.world.World;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;

public class ContainerEngineerPanel extends Container
{
public ContainerEngineerPanel(World world, EntityPlayer player, TileEntity tileEntity) 
{
	this.ePanel = (TileEntityEngineerPanel) tileEntity;
	this.playerInv = player.inventory;
	this.panelInv = (IInventory) tileEntity;
	this.addSlots();
}
IInventory playerInv;
IInventory panelInv;
TileEntityEngineerPanel ePanel;

@Override
public void addCraftingToCrafters(ICrafting crafting)
{
	super.addCraftingToCrafters(crafting);
	crafting.func_175173_a(this, this.ePanel);
}

private void addSlots()
{
	/*Slots 0-35 are the player's inventory
	 * Note: since the engineer panel and player's inventory are
	 * seperate, the slots can have the same ID if needed.
	 * Slots 36-41 are the engineer panel's input
	 * Slots 42-49 are the engineer panel's output
	 */

	//Player's non-hotbar inventory
	for(int x = 0; x < 9; ++x)
	{
		for(int y = 0; y < 3; ++y)
		{
			this.addSlotToContainer(new Slot(playerInv, x * 3 + y, 8 + x * 18, 84 + y * 18));
		}
	}
	//Player's hotbar inventory
	for(int x = 0; x < 9; ++x)
	{
		this.addSlotToContainer(new Slot(playerInv, x + 27, 8 + x * 18, 142));
	}

	//Engineer panel block's input inventory
	for(int x = 0; x < 2; ++x)
	{
		for(int y = 0; y < 3; ++y)
		{
			this.addSlotToContainer(new Slot(panelInv, x * 3 + y + 36, 9 + x * 18, 16 + y * 18));
		}
	}
	//Engineer panel block's output inventory
	for(int x = 0; x < 2; ++x)
	{
		for(int y = 0; y < 3; ++y)
		{
			this.addSlotToContainer(new Slot(panelInv, x * 3 + y + 42, 133 + x * 18, 16 + y * 18));
		}
	}
}

@Override
public boolean canInteractWith(EntityPlayer player) 
{
	return Utilities.getDistance(player.getPosition(), ePanel.getPos()) < 8.0D;
}

@Override
public ItemStack transferStackInSlot(EntityPlayer player, int slotID)
{
	System.out.println("The transferStackInSlot is being called in the container.");
	ItemStack stack1 = null;
	Slot slot = this.getSlot(slotID);
	IInventory inventory = slot.inventory;
	if(slot != null && slot.getHasStack())
	{
		ItemStack stack2 = slot.getStack();
		stack1 = stack2.copy();
		//The slot is in the tile entity
		if(slotID >= 36)
		{
			System.out.println("The slot is thought to be in the tile entity.");
			if(!this.mergeItemStack(stack1, 36, 50, false))
			{
				System.out.println("The slot's itemstack cannot be merged.");
				return null;
			}
		}
		else if(!this.mergeItemStack(stack1, 36, 50, false))
		{
			System.out.println("The slot's itemstack cannot be merged.");
			return null;
		}

		if(stack1.stackSize == 0)
		{
			System.out.println("The stack size is thought to be zero.");
			this.putStackInSlot(slotID, null);
		}
		else
		{
			slot.onSlotChanged();
		}
	}
	return stack1;
}

}

[[1.8] "Singularity" (Black Hole)]

I am definitely not an experienced modder. That said though, if I were you, I would start be creating an entity for your black hole. Have it collect certain entities that are nearby and change their motion towards the black hole and same with the item entities. Considering what black holes do in real life it should also damage the entities nearby too maybe. You can add a counter to the black hole maybe to see how much stuff it has collected and have that add to the power of it. The closest vanilla thing to this idea would be in the explosion class in the world folder. It might be worthwhile to look there too.

 

All this said, I'm not that experienced of a modder though. If someone else comes along that's more experienced, their advice would be worth way more than mine.

[[1.8] Block Model not Found for Metadata Block]

I think I fixed it. There were too many metadata states.

 

Thanks for pointing that out.

[[1.8] Block Model not Found for Metadata Block]

Sorry, I'm kind of new to this. If it's not possible to get more than 16 different states in a block, I'll try fixing that first. I'm really only trying to get a different texture to show based off of the meta data and it will form a different shape based off of the blocks around it. Should I be just using the metadata for the texture only and changing the shape based off of the blocks around it maybe?

 

Honestly, I'm really new to this.

[[1.8] Block Model not Found for Metadata Block]

I've managed to get my metadata block into the game's creative tabs and it will go into the world with the game crashing. However, the game keeps giving me this message about my block model not being found. I've looked at some tutorials and tried troubleshooting the issue but I can't seem to get it to render in the game without the purple and black texture. I'm only trying to make the "undamaged" variant of the block right now and will work on the other variants once that one works. Here's the code:

 

Error message:

 

[12:13:34] [Client thread/ERROR] [FML]: Model definition for location xcom:alien_alloy_wall#damage_level=undamaged not found

 

Block Class

package com.littlepup.xcom.blocks;

import java.util.List;

import com.littlepup.xcom.XcomMain;
import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.block.properties.IProperty;
import net.minecraft.block.properties.PropertyEnum;
import net.minecraft.block.state.BlockState;
import net.minecraft.block.state.IBlockState;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.BlockPos;
import net.minecraft.util.EnumFacing;
import net.minecraft.util.IStringSerializable;
import net.minecraft.util.MovingObjectPosition;
import net.minecraft.world.Explosion;
import net.minecraft.world.World;

public class AlienAlloyWall extends Block implements IMetaBlockName
{
public AlienAlloyWall(Material material) 
{
	super(material);
	this.setUnlocalizedName("alien_alloy_wall");
	this.setCreativeTab(XcomMain.xcomTab);
	this.setHardness(2.0F);
	this.setResistance(250.0F);
	this.setDefaultState(this.blockState.getBaseState().withProperty(DAMAGE_LEVEL, AlienAlloyWallTypes.UNDAMAGED));
}

public static final PropertyEnum DAMAGE_LEVEL = PropertyEnum.create("damage_level", AlienAlloyWall.AlienAlloyWallTypes.class);

//Contains different types of alien alloy blocks
public enum AlienAlloyWallTypes implements IStringSerializable
{
	UNDAMAGED(0, "undamaged"),
	SLIGHTLY_DAMAGED(1, "slightly_damaged"),
	SOMEWHAT_DAMAGED(2, "somewhat_damaged"),
	MODERATELY_DAMAGED(3, "moderately_damaged"),
	VERY_DAMAGED(4, "very_damaged");

	private int ID;
	private String name;

	private AlienAlloyWallTypes(int ID, String name)
	{
		this.ID = ID;
		this.name = name;
	}

	@Override
	public String getName() 
	{
		return name;
	}

	@Override
	public String toString() 
	{
		return getName();
	}

	public int getID()
	{
		return ID;
	}			
}

@Override
protected BlockState createBlockState()
{
	return new BlockState(this, new IProperty[] {DAMAGE_LEVEL});
}

@Override
public IBlockState getStateFromMeta(int meta)
{
	AlienAlloyWallTypes type;

	switch(meta)
	{
		case 0: type = AlienAlloyWallTypes.UNDAMAGED;
			break;
		case 1: type = AlienAlloyWallTypes.SLIGHTLY_DAMAGED;
			break;
		case 2: type = AlienAlloyWallTypes.SOMEWHAT_DAMAGED;
			break;
		case 3: type = AlienAlloyWallTypes.MODERATELY_DAMAGED;
			break;
		case 4: type = AlienAlloyWallTypes.VERY_DAMAGED;
			break;
		default: type = null;
			System.out.println("AlienAlloyWall.getStateFromMeta() is having trouble.");
			break;
	}

	return getDefaultState().withProperty(DAMAGE_LEVEL, type);
}

@Override
public int getMetaFromState(IBlockState state)
{
	AlienAlloyWallTypes type = (AlienAlloyWallTypes) state.getValue(DAMAGE_LEVEL);
	return type.getID();
}

@Override
public int damageDropped(IBlockState state)
{
	return getMetaFromState(state);
}

public void getSubBlocks(Item item, CreativeTabs tab, List list)
{
	for(int i = 0; i < 5; i++ )
	{
		list.add(new ItemStack(item, 1, i));
	}
}

@Override
public String getSpecialName(ItemStack stack) 
{
	int meta = stack.getItemDamage();
	String type;

	switch(meta)
	{
		case 0: type = AlienAlloyWall.AlienAlloyWallTypes.UNDAMAGED.toString();
			break;
		case 1: type = AlienAlloyWall.AlienAlloyWallTypes.SLIGHTLY_DAMAGED.toString();
			break;
		case 2: type = AlienAlloyWall.AlienAlloyWallTypes.SOMEWHAT_DAMAGED.toString();
			break;
		case 3: type = AlienAlloyWall.AlienAlloyWallTypes.MODERATELY_DAMAGED.toString();
			break;
		case 4: type = AlienAlloyWall.AlienAlloyWallTypes.VERY_DAMAGED.toString();
			break;
		default: 
			type = null;
			System.out.println("Error in AlienAlloyWall enum types.");
		break;
	}

	return type;
}

@Override
public boolean isOpaqueCube()
{
	return false;
}

@Override
public IBlockState onBlockPlaced(World world, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
{
	EnumFacing direction = placer.getHorizontalFacing().rotateY();
	AlienAlloyWallTypes type = (AlienAlloyWallTypes) getStateFromMeta(meta).getValue(DAMAGE_LEVEL);

	return super.onBlockPlaced(world, pos, direction, hitX, hitY, hitZ, meta, placer).withProperty(DAMAGE_LEVEL, type);
}

@Override
public ItemStack getPickBlock(MovingObjectPosition target, World world, BlockPos pos)
{
	return new ItemStack(Item.getItemFromBlock(this), 1, this.getMetaFromState(world.getBlockState(pos)));
}

@Override
public void onBlockDestroyedByExplosion(World world, BlockPos pos, Explosion explosion)

{
	IBlockState state = world.getBlockState(pos);
	int meta = getMetaFromState(state);
	IBlockState newType = state.cycleProperty(DAMAGE_LEVEL);

	if(meta <= 3)
	{
		world.setBlockState(pos, newType);
	}
	else
	{
		world.setBlockToAir(pos);
	}
}	
}

 

Blockstates json file

 

{
    "variants": 
    {
        "damage_level=undamaged,facing=up": { "model": "xcom:alien_alloy_wall_undamaged" },
        "damage_level=undamaged,facing=down": { "model": "xcom:alien_alloy_wall_undamaged", "x": 180},
        "damage_level=undamaged,facing=east": { "model": "xcom:alien_alloy_wall_undamaged", "x": 90 },
        "damage_level=undamaged,facing=west": { "model": "xcom:alien_alloy_wall_undamaged", "x": 270 },
        "damage_level=undamaged,facing=north": { "model": "xcom:alien_alloy_wall_undamaged", "y": 90 },
        "damage_level=undamaged,facing=south": { "model": "xcom:alien_alloy_wall_undamaged", "y": 270 }
    }
}

 

Registration

 

public final class BlocksMain 
{
public static Block alien_alloy_wall = new AlienAlloyWall(Material.iron);

public static void addMetadataBlocks()
{
	GameRegistry.registerBlock(alien_alloy_wall, MetaBlocks.class, "alien_alloy_wall");
}

public static void addMetadataBlockRenderers()
{
	//Meta-data-block model name variations
	ModelBakery.addVariantName(Item.getItemFromBlock(BlocksMain.alien_alloy_wall), "xcom:alien_alloy_wall_undamaged");

	//Registers the block renderer(s)
	Minecraft.getMinecraft().getRenderItem().getItemModelMesher().register(Item.getItemFromBlock(alien_alloy_wall), 0, new ModelResourceLocation(XcomMain.MODID + ":" +	"alien_ally_wall_undamaged", "inventory"));


}
}

 

Thanks to anyone who helps.

[[1.7.10]Rendering a Throwable from Item Metadata]

OK. Thanks for telling me that.

[[1.7.10]Rendering a Throwable from Item Metadata]

Thank you for the help. Although I'm still confused on how to get the metadata value from the entity class to the render class I am using. If this is just a java question I won't push anyone, but I really am stumped on how to get that value into the render class.

[[1.7.10]Rendering a Throwable from Item Metadata]

Sorry to bother people again, but I was having some of the same troubles with the IEntityAdditionalSpawnData in terms of the value having 0 no matter what. If this is a java question I won't push you on it but I was wondering how I would get the classes to sync. Also, is there anything else I'm doing wrong here? Here is the render class (embarrassed that happened) and the new entity class.

 

 

Entity class:

package com.littlepup.xcom_mod.entities;

import io.netty.buffer.ByteBuf;

import java.util.Iterator;
import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.entity.Entity;
import net.minecraft.entity.EntityLiving;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityThrowable;
import net.minecraft.init.Blocks;
import net.minecraft.item.ItemStack;
import net.minecraft.potion.Potion;
import net.minecraft.potion.PotionEffect;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.MathHelper;
import net.minecraft.util.MovingObjectPosition;
import net.minecraft.util.Vec3;
import net.minecraft.world.World;

import com.littlepup.xcom_mod.items.ItemGrenades;
import com.littlepup.xcom_mod.items.ItemsMain;
import com.littlepup.xcom_mod.other.Utilities;

import cpw.mods.fml.common.registry.IEntityAdditionalSpawnData;

public class XcomEntityGrenade extends EntityThrowable implements IEntityAdditionalSpawnData
{		
int x, y, z;
Block block;
int ticksInGround;
int ticksInAir;
int metadata;

public XcomEntityGrenade(World world) 
{
	super(world);
}

public XcomEntityGrenade(World world, EntityLivingBase entityLivingBase, int metadataL)
{
	super(world, entityLivingBase);
	this.metadata = metadataL;
}

public XcomEntityGrenade(World world, double posX, double posY, double posZ)
{
	super(world, posX, posY, posZ);
}

@Override
protected void onImpact(MovingObjectPosition moveObjPos) 
{
	x = moveObjPos.blockX;
	y = moveObjPos.blockY;
	z = moveObjPos.blockZ;
}



@Override
public void writeSpawnData(ByteBuf addedData) 
{
	addedData.capacity(addedData.capacity() + 10);
	addedData.writerIndex(addedData.capacity() - 10);
	addedData.writeInt(this.metadata);
	addedData.writerIndex(addedData.writerIndex() - 1);
	System.out.println("entity written data " + metadata);
}

@Override
public void readSpawnData(ByteBuf addedData) 
{
	addedData.readerIndex(addedData.capacity() - 10);
	int l = addedData.getInt(addedData.readerIndex());
	System.out.println("entity written data " + l);
}

}

 

Render class (basically the same as render snowball)

 

package com.littlepup.xcom_mod.renderers;

import io.netty.buffer.ByteBuf;
import cpw.mods.fml.common.registry.IEntityAdditionalSpawnData;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.entity.Render;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.entity.Entity;
import net.minecraft.entity.projectile.EntityPotion;
import net.minecraft.item.Item;
import net.minecraft.item.ItemPotion;
import net.minecraft.item.ItemStack;
import net.minecraft.potion.PotionHelper;
import net.minecraft.util.IIcon;
import net.minecraft.util.ResourceLocation;

import org.lwjgl.opengl.GL11;
import org.lwjgl.opengl.GL12;

import com.littlepup.xcom_mod.items.ItemGrenades;
import com.littlepup.xcom_mod.items.ItemsMain;
import com.littlepup.xcom_mod.other.Utilities;

@SideOnly(Side.CLIENT)
public class RenderGrenade extends Render
{
    private int metadata;
    Item grenades = ItemsMain.grenades;
    public RenderGrenade()
    {
    	
    }
    
    public void doRender(Entity entity, double d1, double d2, double d3, float f, float f1)
    {	
        IIcon iicon = grenades.getIconFromDamage(metadata);
        
        System.out.println("metadata from render class" + metadata);
        		
        if (iicon != null)
        {
            GL11.glPushMatrix();
            GL11.glTranslatef((float)d1, (float)d2, (float)d3);
            GL11.glEnable(GL12.GL_RESCALE_NORMAL);
            GL11.glScalef(0.5F, 0.5F, 0.5F);
            this.bindEntityTexture(entity);
            Tessellator tessellator = Tessellator.instance;    
            this.func_77026_a(tessellator, iicon);
            GL11.glDisable(GL12.GL_RESCALE_NORMAL);
            GL11.glPopMatrix();
        }
    }

    /**
     * Returns the location of an entity's texture. Doesn't seem to be called unless you call Render.bindEntityTexture.
     */
    protected ResourceLocation getEntityTexture(Entity entity)
    {
        return TextureMap.locationItemsTexture;
    }

    private void func_77026_a(Tessellator p_77026_1_, IIcon p_77026_2_)
    {
        float f = p_77026_2_.getMinU();
        float f1 = p_77026_2_.getMaxU();
        float f2 = p_77026_2_.getMinV();
        float f3 = p_77026_2_.getMaxV();
        float f4 = 1.0F;
        float f5 = 0.5F;
        float f6 = 0.25F;
        GL11.glRotatef(180.0F - this.renderManager.playerViewY, 0.0F, 1.0F, 0.0F);
        GL11.glRotatef(-this.renderManager.playerViewX, 1.0F, 0.0F, 0.0F);
        p_77026_1_.startDrawingQuads();
        p_77026_1_.setNormal(0.0F, 1.0F, 0.0F);
        p_77026_1_.addVertexWithUV((double)(0.0F - f5), (double)(0.0F - f6), 0.0D, (double)f, (double)f3);
        p_77026_1_.addVertexWithUV((double)(f4 - f5), (double)(0.0F - f6), 0.0D, (double)f1, (double)f3);
        p_77026_1_.addVertexWithUV((double)(f4 - f5), (double)(f4 - f6), 0.0D, (double)f1, (double)f2);
        p_77026_1_.addVertexWithUV((double)(0.0F - f5), (double)(f4 - f6), 0.0D, (double)f, (double)f2);
        p_77026_1_.draw();
    }
}

[[1.7.10]Rendering a Throwable from Item Metadata]

I'll try that. Thanks.

[[1.7.10]Rendering a Throwable from Item Metadata]

So I have been trying hard to render a throwable entity.  The item class has metadata on it and I am trying to the entity to render with a different icon based off of the item's metadata. The problem is that it seems to think that the metadata is always 0 even thought it could be that through 4.I also want it to behave differently based off of the spawning item's metadata but I want to fix the icon issue before that. I'm not particularly experienced with Java so if this is a Java thing let me know and I'll take it down. I don't want to be a nuisance here. Anyway, here's the code I have right now. Thank you to anyone willing to help.

 

The item class:

public class ItemGrenades extends Item 
{
public static String[] name = {"alien", "flash", "frag", "gas", "needle"};
public int metadata;

@SideOnly(Side.CLIENT)
public IIcon[] icons;

public ItemGrenades()
{	
	setCreativeTab(XcomMain.XcomTab);
	setHasSubtypes(true);
	setUnlocalizedName(Reference.MODID + "_" + "grenade" + "_" + name);
}

@SideOnly(Side.CLIENT)
@Override
public void registerIcons(IIconRegister iconregister)
{
	icons = new IIcon[name.length];

	for(int i = 0; i < icons.length; i++)
	{
		icons[i] = iconregister.registerIcon(Reference.MODID + ":" + "grenade" +  "_" + name[i]);
	}
}

@SideOnly(Side.CLIENT)
@Override
public IIcon getIconFromDamage(int par1)
{
	return icons[par1];
}	

@Override
public String getUnlocalizedName(ItemStack itemstack)
{
	int metadata = MathHelper.clamp_int(itemstack.getItemDamage(), 0, 15);

	return super.getUnlocalizedName() + "." + name[metadata];
}

@SuppressWarnings({"unchecked", "rawtypes"})
@SideOnly(Side.CLIENT)
@Override
public void getSubItems(Item item, CreativeTabs creativeTab, List list)
{
	for(int i = 0; i < name.length; i++)
	{
		list.add(new ItemStack(this, 5 , i));
	}
}

@Override
public ItemStack onItemRightClick(ItemStack stackL, World world, EntityPlayer entityPlayer)
{
	int l = stackL.getItemDamage();
	metadata = l;

	if(world.isRemote == false)
	{
		world.spawnEntityInWorld(new XcomEntityGrenade(world, entityPlayer, l));
	}

	//Debug
	System.out.println(l);
	System.out.println(metadata);

	return stackL;
}
}

 

The entity class (not done yet)

 

public class XcomEntityGrenade extends EntityThrowable
{		
int x, y, z;
Block block;
int ticksInGround;
int ticksInAir;
int metadata;

public XcomEntityGrenade(World world) 
{
	super(world);
}

public XcomEntityGrenade(World world, EntityLivingBase entityLivingBase, int metadataL)
{
	super(world, entityLivingBase);
	this.metadata = metadataL;
}

public XcomEntityGrenade(World world, double posX, double posY, double posZ)
{
	super(world, posX, posY, posZ);
}

@Override
protected void onImpact(MovingObjectPosition moveObjPos) 
{
	x = moveObjPos.blockX;
	y = moveObjPos.blockY;
	z = moveObjPos.blockZ;
}

}

 

The Render class

 

public class XcomEntityGrenade extends EntityThrowable
{		
int x, y, z;
Block block;
int ticksInGround;
int ticksInAir;
int metadata;

public XcomEntityGrenade(World world) 
{
	super(world);
}

public XcomEntityGrenade(World world, EntityLivingBase entityLivingBase, int metadataL)
{
	super(world, entityLivingBase);
	this.metadata = metadataL;
}

public XcomEntityGrenade(World world, double posX, double posY, double posZ)
{
	super(world, posX, posY, posZ);
}

@Override
protected void onImpact(MovingObjectPosition moveObjPos) 
{
	x = moveObjPos.blockX;
	y = moveObjPos.blockY;
	z = moveObjPos.blockZ;
}

}

 

My Client Proxy

 

public class ClientProxy extends CommonProxy
{
public static ISimpleBlockRenderingHandler meld_canister_renderer;
public static ISimpleBlockRenderingHandler alien_computer_renderer;	

@Override
public void registerBlockRendering()
{
	meld_canister_renderer = new RenderBlockMeldCanister();
	RenderingRegistry.registerBlockHandler(RenderBlockMeldCanister.meld_canister_renderid, meld_canister_renderer);
	alien_computer_renderer = new RenderBlockAlienComputer();
	RenderingRegistry.registerBlockHandler(RenderBlockAlienComputer.xenocomputer_renderID, alien_computer_renderer);

}

@Override
public void registerEntityRendering()
{
	RenderingRegistry.registerEntityRenderingHandler(EntitySectoid.class, new RenderSectoid(new ModelSectoid(), 0.3F));
}

@Override
public void registerItemsRendering()
{
	RenderingRegistry.registerEntityRenderingHandler(XcomEntityGrenade.class, new RenderGrenade());
}
}

[[1.7.10]Player Rotation Yaw Problems]

Thank you for helping me. I will be sure to come back here if I have anymore questions about this. I hope you do well in your modding.

[[1.7.10]Player Rotation Yaw Problems]

Oh, I see, you want me to use the % sign to get the remainder from it as if it were divided, right?

[[1.7.10]Player Rotation Yaw Problems]

Sorry, I'm a new modder, when you say that I should take the remainder of the angle with 360, I should divide by that, right? To be honest, I'm still confused with what you mean. Just an idea, but maybe you could type out this bit of code.

[[1.7.10]Player Rotation Yaw Problems]

If you meant to divide by 2 when you said "clip the rotationYaw" value, it doesn't seem to work when I do that. Although I am somewhat confused on what you mean by that so I might be doing something wrong.

[[1.7.10]Player Rotation Yaw Problems]

So I've been trying to get a block when placed to change certain blocks around  based off of what direction the player is facing. I have been using rotationYaw from the EntityLivingBase to do this and sometimes it works but sometimes it places things as if the player is facing a different direction. I have no idea what this is and what is triggering it. Anything helps and is appreciated.

 

Note: I am unfinished with the code for if the player is facing east but I am already having problems with the other directions the player could be facing so I have been working on this issue.

 

Here is the block class:

package com.littlepup.xcom_mod.blocks;

import java.util.List;

import net.minecraft.block.Block;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IIconRegister;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.util.IIcon;
import net.minecraft.util.MathHelper;
import net.minecraft.world.Explosion;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;

import com.littlepup.xcom_mod.XcomMain;
import com.littlepup.xcom_mod.other.Reference;
import com.littlepup.xcom_mod.renderers.RendererAlienComputer;

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

public class BlockXenocomputer extends Block
{
@SideOnly(Side.CLIENT)
public static IIcon icons[];
public int metadata = 0;

BlockXenocomputer()
{
	super(Material.iron);
	setCreativeTab(XcomMain.XcomTab);
	setBlockName("xenocomputer");
	setHardness(5.0F);
	setResistance(20.0F);
}


@Override
public boolean isNormalCube()
{
	return false;
}

@Override
public boolean isOpaqueCube()
{
	return false;
}

@Override
public boolean canDropFromExplosion(Explosion explosion)
{
	return false;
}


@Override
public boolean renderAsNormalBlock()
{
	return false;
}

@SuppressWarnings({"unchecked", "rawtypes"})
@SideOnly(Side.CLIENT)
@Override
public void getSubBlocks(Item par1, CreativeTabs par2creativetab, List par3list)
{
	for(int var = 0; var < 2; ++var)
	{	
		par3list.add(new ItemStack(par1, 1, var));
	}
}

@Override
@SideOnly(Side.CLIENT)
public void registerBlockIcons(IIconRegister iconregister)
{		
	icons = new IIcon[40];
	for(int i = 0; i < icons.length; i++)
	{
		icons[i] = iconregister.registerIcon(Reference.MODID + ":" + "xenocomputer" + i);
	}
}

@Override
public int getRenderType()
{
	return RendererAlienComputer.xenocomputer_renderID;
}

@Override
public void	onBlockPlacedBy(World world, int x, int y, int z, EntityLivingBase entityBase, ItemStack itemStack)
    {
	float rotation = entityBase.rotationYaw;
	Block xenocomputer = BlocksMain.xenocomputer;

		//North facing computers
		if(rotation >= 135.0F || rotation <= -135.0F)
		{	
			world.setBlock(x - 1, y, z, xenocomputer, metadata, 2);
			world.setBlock(x - 2, y, z, xenocomputer, metadata, 2);
			world.setBlock(x + 1, y, z, xenocomputer, metadata, 2);
			world.setBlock(x + 2, y, z, xenocomputer, metadata, 2);
			world.setBlock(x, y, z + 1, xenocomputer, metadata, 2);
			world.setBlock(x - 2, y, z + 1, xenocomputer, metadata, 2);
			world.setBlock(x + 2, y, z + 1, xenocomputer, metadata, 2);
			world.setBlock(x - 2, y + 1, z, xenocomputer, metadata, 2);
			world.setBlock(x + 2, y + 1, z, xenocomputer, metadata, 2);
			world.setBlock(x, y + 1, z, xenocomputer, metadata, 2);
		}
		//West facing computers
		else if(rotation < 135.0F && rotation > 45.0F)
		{
			world.setBlock(x, y, z - 1, xenocomputer, metadata, 2);
			world.setBlock(x, y, z + 1, xenocomputer, metadata, 2);
			world.setBlock(x + 1, y, z, xenocomputer, metadata, 2);
			world.setBlock(x, y, z - 2, xenocomputer, metadata, 2);
			world.setBlock(x, y, z + 2, xenocomputer, metadata, 2);
			world.setBlock(x + 1, y, z - 2, xenocomputer, metadata, 2);
			world.setBlock(x + 1, y, z + 2, xenocomputer, metadata, 2);
			world.setBlock(x, y + 1, z - 2, xenocomputer, metadata, 2);
			world.setBlock(x, y + 1, z + 2, xenocomputer, metadata, 2);
			world.setBlock(x, y + 1, z, xenocomputer, metadata, 2);
		}
		//South facing computers
		else if(rotation <= 45.0F && rotation >= -45.0F)
		{
			world.setBlock(x - 1, y, z, xenocomputer, metadata, 2);
			world.setBlock(x - 2, y, z, xenocomputer, metadata, 2);
			world.setBlock(x + 1, y, z, xenocomputer, metadata, 2);
			world.setBlock(x + 2, y, z, xenocomputer, metadata, 2);
			world.setBlock(x, y, z - 1, xenocomputer, metadata, 2);
			world.setBlock(x - 2, y, z - 1, xenocomputer, metadata, 2);
			world.setBlock(x + 2, y, z - 1, xenocomputer, metadata, 2);
			world.setBlock(x - 2, y + 1, z, xenocomputer, metadata, 2);
			world.setBlock(x + 2, y + 1, z, xenocomputer, metadata, 2);
			world.setBlock(x, y + 1, z, xenocomputer, metadata, 2);
		}
		//East facing computers
		else
		{

		}
    }
}

 

Here is the rendering class (if it's needed):

 

package com.littlepup.xcom_mod.renderers;

import com.littlepup.xcom_mod.blocks.BlocksMain;

import net.minecraft.block.Block;
import net.minecraft.client.renderer.RenderBlocks;
import net.minecraft.world.IBlockAccess;
import cpw.mods.fml.client.registry.ISimpleBlockRenderingHandler;
import cpw.mods.fml.client.registry.RenderingRegistry;

public class RendererAlienComputer implements ISimpleBlockRenderingHandler 
{
public static int xenocomputer_renderID = RenderingRegistry.getNextAvailableRenderId();

@Override
public void renderInventoryBlock(Block block, int metadata, int modelId,
		RenderBlocks renderer) 
{

}

@Override
public boolean renderWorldBlock(IBlockAccess blockaccess, int x, int y, int z,
		Block block, int modelId, RenderBlocks renderer) 
{
	int metadata = blockaccess.getBlockMetadata(x, y, z);
	Block xenocomputer = BlocksMain.xenocomputer;

	/*Intact Alien Computer
	North Facing Alien Computer
	Center Base*/
	if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z) && xenocomputer == 
			blockaccess.getBlock(x + 1, y, z) && xenocomputer == blockaccess.getBlock(x, y, z + 1) &&
			xenocomputer !=  blockaccess.getBlock(x, y, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Left Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z) && xenocomputer == blockaccess.getBlock(x + 1, y, z) 
			&& xenocomputer != blockaccess.getBlock(x - 2, y, z) && xenocomputer == blockaccess.getBlock(x + 1, y, z + 1))
	{
		renderer.setRenderBounds(-0.25D, 0.0D, 0.0D, 1.0D, 1.0D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Leftmost Base
	else if(metadata == 0 && xenocomputer != blockaccess.getBlock(x - 1, y, z) && xenocomputer == blockaccess.getBlock(x + 1, y, z) 
			&& xenocomputer == blockaccess.getBlock(x + 2, y, z + 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.75D, 1.0D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.0D, 0.0D, 0.75D, 0.75D, 0.875D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Right Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z) && xenocomputer == blockaccess.getBlock(x + 1, y, z) 
			&& xenocomputer != blockaccess.getBlock(x + 2, y, z) && xenocomputer == blockaccess.getBlock(x - 1, y, z + 1))
	{

		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 1.125D, 1.0D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Rightmost Base
	else if(metadata == 0 && xenocomputer != blockaccess.getBlock(x + 1, y, z) && xenocomputer == 
			blockaccess.getBlock(x - 1, y, z) && xenocomputer == blockaccess.getBlock(x - 2, y, z + 1))
	{
		renderer.setRenderBounds(0.125D, 0.0D, 0.0D, 1.0D, 1.0D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.25D, 0.0D, 0.75D, 1.0D, 0.875D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Center Bottom out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer == 
			blockaccess.getBlock(x + 1, y, z - 1) && xenocomputer == blockaccess.getBlock(x, y, z - 1))
	{
		//Center Bottom 1
		renderer.setRenderBounds(0.0625D, 0.0D, 0.0D, 0.9375D, 0.75D, 0.375D);
		renderer.renderStandardBlock(block, x, y, z);
		//Center Bottom 2
		renderer.setRenderBounds(0.1875D, 0.0D, 0.375D, 0.8125D, 0.625D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Left out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x + 1, y, z - 1) && xenocomputer != 
			blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer == blockaccess.getBlock(x + 2, y, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.75D, 0.875D, 0.875D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Right out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer !=
			blockaccess.getBlock(x + 1, y, z - 1) && xenocomputer == blockaccess.getBlock(x - 2, y, z - 1))
	{
		renderer.setRenderBounds(0.25D, 0.0F, 0.0F, 1.0D, 0.875D, 0.875D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Left out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x + 1, y - 1, z) && xenocomputer == 
			blockaccess.getBlock(x, y - 1, z + 1) && xenocomputer != blockaccess.getBlock(x - 1, y - 1, z)
			&& xenocomputer == blockaccess.getBlock(x + 2, y - 1, z))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.625D, 0.375D, 0.625D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Right out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y - 1, z) && xenocomputer == 
			blockaccess.getBlock(x, y - 1, z + 1) && xenocomputer != blockaccess.getBlock(x + 1, y - 1, z) && 
			xenocomputer == blockaccess.getBlock(x - 2, y - 1, z))
	{
		renderer.setRenderBounds(0.375D, 0.0D, 0.0D, 1.0D, 0.375D, 0.625D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Center out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y - 1, z + 1) && xenocomputer == 
			blockaccess.getBlock(x - 1, y - 1, z) && xenocomputer == blockaccess.getBlock(x + 1, y - 1, z)
			&& xenocomputer != blockaccess.getBlock(x, y - 1, z - 1))
	{
		renderer.setRenderBounds(0.1875D, 0.0D, 0.0D, 0.8125D, 0.25D, 0.625D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	/*West Facing Computer
	 *Center Base*/
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z - 1) && xenocomputer ==
			blockaccess.getBlock(x, y, z + 1) && xenocomputer == blockaccess.getBlock(x + 1, y, z))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 1.0F, 1.0F, 1.0F);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Left Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z + 1) && xenocomputer ==
			blockaccess.getBlock(x, y, z - 1) && xenocomputer != blockaccess.getBlock(x, y, z + 2)
			&& xenocomputer == blockaccess.getBlock(x + 1, y, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.75D, 1.0D, 1.25D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Right Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z + 1) && xenocomputer ==
			blockaccess.getBlock(x, y, z - 1) && xenocomputer != blockaccess.getBlock(x, y, z - 2)
			&& xenocomputer == blockaccess.getBlock(x + 1, y, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, -0.25D, 0.75D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Leftmost Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z - 1) && xenocomputer ==
			blockaccess.getBlock(x + 1, y, z - 2) && xenocomputer != blockaccess.getBlock(x, y, z + 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.25D, 0.75D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.75D, 0.0D, 0.25D, 1.0D, 0.875D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Rightmost Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x + 1, y, z + 2) && xenocomputer ==
			blockaccess.getBlock(x + 1, y, z) && xenocomputer != blockaccess.getBlock(x, y, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.75D, 1.0D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.75D, 0.0D, 0.0D, 1.0D, 0.875D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Center Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z) && xenocomputer == 
			blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer == blockaccess.getBlock(x - 1, y, z + 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.1875D, 0.375D, 0.625D, 0.8125D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.375D, 0.0D, 0.1875D, 0.6875D, 0.5625D, 0.8125D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Left Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer != 
			blockaccess.getBlock(x - 1, y, z + 1) && xenocomputer == blockaccess.getBlock(x - 1, y, z - 2)
			&& xenocomputer == blockaccess.getBlock(x - 1, y, z))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.25D, 0.6875D, 0.875D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Right Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z) && xenocomputer != 
			blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer == blockaccess.getBlock(x - 1, y, z + 2)
			&& xenocomputer == blockaccess.getBlock(x - 1, y, z + 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.6875D, 0.875D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Left Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y - 1, z - 1) && xenocomputer != 
			blockaccess.getBlock(x, y - 1, z + 1) && xenocomputer == blockaccess.getBlock(x + 1, y - 1, z)
			&& xenocomputer == blockaccess.getBlock(x, y, z - 2))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.375D, 0.625D, 0.375D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Right Out-cropping
	else if(metadata == 0 && xenocomputer != blockaccess.getBlock(x, y - 1, z - 1) && xenocomputer == 
			blockaccess.getBlock(x, y - 1, z + 1) && xenocomputer == blockaccess.getBlock(x + 1, y - 1, z)
			&& xenocomputer == blockaccess.getBlock(x, y, z + 2))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.625D, 0.375D, 0.625D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Center Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y - 1, z - 1) && xenocomputer == 
			blockaccess.getBlock(x, y - 1, z + 1) && xenocomputer == blockaccess.getBlock(x + 1, y - 1, z)
			&& xenocomputer != blockaccess.getBlock(x - 1, y - 1, z))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.1875D, 0.625D, 0.25D, 0.8125D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	/*South Facing Alien Computer
	 Center Base*/
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z - 1) && xenocomputer ==
			blockaccess.getBlock(x - 1, y, z) && xenocomputer == blockaccess.getBlock(x + 1, y, z))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Left Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z - 1) && xenocomputer !=
			blockaccess.getBlock(x + 2, y, z) && xenocomputer == blockaccess.getBlock(x - 1, y, z))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.25D, 1.25D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Left-most Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 2, y, z - 1) && xenocomputer !=
			blockaccess.getBlock(x + 1, y, z) && xenocomputer == blockaccess.getBlock(x, y, z - 1))
	{
		renderer.setRenderBounds(0.25D, 0.0D, 0.25D, 1.0D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.25D, 0.0D, 0.0D, 1.0D, 0.875D, 0.25D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Right Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x + 1, y, z - 1) && xenocomputer !=
			blockaccess.getBlock(x - 2, y, z) && xenocomputer == blockaccess.getBlock(x - 1, y, z))
	{
		renderer.setRenderBounds(-0.25F, 0.0F, 0.25F, 1.0F, 1.0F, 1.0F);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Right-most Base
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x + 1, y, z) && xenocomputer !=
			blockaccess.getBlock(x - 1, y, z) && xenocomputer == blockaccess.getBlock(x + 2, y, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.25D, 0.75D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.75D, 0.875D, 0.25D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Center Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z - 1) && xenocomputer ==
			blockaccess.getBlock(x + 1, y, z + 1) && xenocomputer == blockaccess.getBlock(x - 1, y, z + 1))
	{
		renderer.setRenderBounds(0.1875D, 0.0D, 0.0D, 0.8125D, 0.625D, 0.3125D);
		renderer.renderStandardBlock(block, x, y, z);
		renderer.setRenderBounds(0.1875D, 0.0D, 0.3125D, 0.8125D, 0.5625D, 0.6875D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Left Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z - 1) && xenocomputer ==
			blockaccess.getBlock(x + 1, y, z - 1) && xenocomputer != blockaccess.getBlock(x - 1, y, z + 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 0.75D, 0.875D, 0.75D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Bottom Right Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x, y, z - 1) && xenocomputer ==
			blockaccess.getBlock(x + 1, y, z + 1) && xenocomputer == blockaccess.getBlock(x - 1, y, z))
	{
		renderer.setRenderBounds(0.25D, 0.0D, 0.0D, 1.0D, 0.875D, 0.6875D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Left Out-cropping
	else if(metadata == 0 && xenocomputer != blockaccess.getBlock(x + 1, y - 1, z) && xenocomputer == 
			blockaccess.getBlock(x + 1, y - 1, z) && xenocomputer == blockaccess.getBlock(x, y - 1, z - 1))
	{
		renderer.setRenderBounds(0.375D, 0.0D, 0.375D, 1.0D, 0.375D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Right Out-cropping
	else if(metadata == 0 && xenocomputer != blockaccess.getBlock(x - 1, y - 1, z) && xenocomputer ==
			blockaccess.getBlock(x + 1, y - 1, z) && xenocomputer == blockaccess.getBlock(x, y - 1, z - 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.375D, 0.625D, 0.375D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Top Center Out-cropping
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y - 1, z) && xenocomputer == 
			blockaccess.getBlock(x + 1, y - 1, z) && xenocomputer == blockaccess.getBlock(x, y - 1, z - 1)
			&& xenocomputer != blockaccess.getBlock(x, y - 1, z + 1))
	{
		renderer.setRenderBounds(0.1875D, 0.0D, 0.375D, 0.8125D, 0.25D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	/*East Facing Intact Computer
	 Center Base*/
	else if(metadata == 0 && xenocomputer == blockaccess.getBlock(x - 1, y, z) && xenocomputer ==
			blockaccess.getBlock(x, y, z - 1) && xenocomputer != blockaccess.getBlock(x, y, z + 1))
	{
		renderer.setRenderBounds(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D);
		renderer.renderStandardBlock(block, x, y, z);
	}
	//Damaged Alien Computer
	else
	{	

	}

	return true;
}

@Override
public boolean shouldRender3DInInventory(int modelId) 
{
	return false;
}

@Override
public int getRenderId() 
{
	return xenocomputer_renderID;
}

}

[[1.7.10]Custom Block Renderer Texture Broken]

Thank you for helping me. I was pretty frustrated there.

[[1.7.10]Custom Block Renderer Texture Broken]

So just for clarification, I don't need to make a model, I don't need to use a separate method in the render class because renderStandardBlock does that for me, and I should be doing something else for creating a tile entity?

[[1.7.10]Custom Block Renderer Texture Broken]

On the b), should I extend to a different model class or something else.

On the c), how should I load the texture?