[1.6.4] Rendering container stuff into a model

Flenix · March 15, 2014

Hey guys,

I want to render some things from a tile entities container physically into the model. However, I'm having a bit of trouble with it.

I believe all I need to do is "sync" the container from the server to the client; but I'm not exactly sure how. My code is failing when doing a null check for the itemstack though, so I think that's a good guess.

Here is my renderer, tile entity, and container. Anyone able to point me in the right direction?

package co.uk.silvania.cities.core.client.models;

import net.minecraft.block.Block;
import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.OpenGlHelper;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.entity.RenderItem;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.renderer.tileentity.TileEntitySpecialRenderer;
import net.minecraft.entity.Entity;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;

import org.lwjgl.opengl.GL11;

import co.uk.silvania.cities.econ.store.entity.TileEntityAdminShop;


public class TileEntityFloatingShelvesRenderer extends TileEntitySpecialRenderer {

private final FloatingShelvesModel model;
private final RenderItem renderer;

private TileEntityAdminShop shelvesEntity;

public TileEntityFloatingShelvesRenderer() {
	this.model = new FloatingShelvesModel();
	this.renderer = new RenderItem();

	renderer.setRenderManager(RenderManager.instance);
}

@Override
public void renderTileEntityAt(TileEntity te, double x, double y, double z, float scale) {
	this.shelvesEntity = (TileEntityAdminShop) te;
	int i = te.getBlockMetadata();
	int meta = 180;

	if (i == 0) {
		meta = 0;
	}

	if (i == 3) {
		meta = 90;
	}

	if (i == 2) {
		meta = 180;
	}

	if (i == 1) {
		meta = 270;
	}

	Minecraft.getMinecraft().renderEngine.bindTexture(new ResourceLocation("flenixcities", "textures/entities/floatingshelves.png"));
	GL11.glPushMatrix();
	GL11.glTranslatef((float) x + 0.5F, (float) y + 1.5F, (float) z + 0.5F);
	GL11.glRotatef(meta, 0.0F, 1.0F, 0.0F);
	//GL11.glRotatef(((TileEntityBarrierEntity)tile).getRotationPivot()), 0.0F, 1.0F, 0.0F);
	GL11.glScalef(1.0F, -1F, -1F);
	this.model.render((Entity)null, 0.0F, 0.0F, -0.1F, 0.0F, 0.0F, 0.0625F);
	GL11.glPopMatrix();

	GL11.glPushMatrix();
	System.out.println("Begin item renderer");
	if (shelvesEntity.getStackInSlot(0) != null) {
		System.out.println("Slot 0 contains an item!");
		EntityItem entity = new EntityItem(te.worldObj);
		entity.hoverStart = 0.0F;
		GL11.glTranslated((float) x + 0.5F, (float) y + 1.5F, (float) z + 0.5F);
		GL11.glRotatef(0, 0.0F, 1.0F, 0.0F);
		entity.setEntityItemStack(shelvesEntity.getStackInSlot(0));
		System.out.println("Render it now");
		renderer.doRenderItem(entity, 0.0D, 0.0D, 0.0D, 0.0F, 0.0F);
	}
	System.out.println("End item renderer");
	GL11.glPopMatrix();
}

private void adjustLightFixture(World world, int i, int j, int k, Block block) {
	Tessellator tess = Tessellator.instance;
	float brightness = block.getBlockBrightness(world, i, j, k);
	int skyLight = world.getLightBrightnessForSkyBlocks(i, j, k, 0);
	int modulousModifier = skyLight % 65536;
	int divModifier = skyLight / 65536;
	tess.setColorOpaque_F(brightness, brightness, brightness);
	OpenGlHelper.setLightmapTextureCoords(OpenGlHelper.lightmapTexUnit,  (float) modulousModifier,  divModifier);
}
}

package co.uk.silvania.cities.econ.store.entity;

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.packet.Packet;
import net.minecraft.tileentity.TileEntity;
import co.uk.silvania.cities.econ.EconUtils;
import co.uk.silvania.cities.econ.money.ItemCoin;
import co.uk.silvania.cities.econ.money.ItemNote;

public class TileEntityAdminShop extends TileEntity implements IInventory {

public String ownerName;
public String userName;
private ItemStack[] items;
public double buyPrice1;
public double sellPrice1;
public double buyPrice2;
public double sellPrice2;
public double buyPrice3;
public double sellPrice3;
public double buyPrice4;
public double sellPrice4;
public int tabButton;

@Override
public void writeToNBT(NBTTagCompound nbt) {
	super.writeToNBT(nbt);
	NBTTagList nbtTagList = new NBTTagList();
	//Credit to Lumien
	for (int i = 0; i < this.items.length; ++i) {
		if (this.items[i] != null) {
			System.out.println("Writing Item in Slot " + i);
			NBTTagCompound compound = new NBTTagCompound();
			nbt.setByte("Slot", (byte)i);
			this.items[i].writeToNBT(compound);
			nbtTagList.appendTag(compound);
		}
	}
	nbt.setTag("Items",  nbtTagList);
	nbt.setString("ownerName", ownerName);
	nbt.setDouble("buyPrice1", buyPrice1);
	nbt.setDouble("sellPrice1", sellPrice1);
	nbt.setDouble("buyPrice2", buyPrice2);
	nbt.setDouble("sellPrice2", sellPrice2);
	nbt.setDouble("buyPrice3", buyPrice3);
	nbt.setDouble("sellPrice3", sellPrice3);
	nbt.setDouble("buyPrice4", buyPrice4);
	nbt.setDouble("sellPrice4", sellPrice4);

}

@Override
public void readFromNBT(NBTTagCompound nbt) {
	super.readFromNBT(nbt);
	NBTTagList nbtTagList = nbt.getTagList("Items");
	for (int i = 0; i < nbtTagList.tagCount(); i++) {
		NBTTagCompound nbt1 = (NBTTagCompound)nbtTagList.tagAt(i);
		int j = nbt1.getByte("Slot") & 255;
		System.out.println("Reading Item in Slot " + i + "/" + j);
		this.items[i] = ItemStack.loadItemStackFromNBT(nbt1);
	}
	this.ownerName = nbt.getString("ownerName");
	this.buyPrice1 = nbt.getDouble("buyPrice1");
	this.sellPrice1 = nbt.getDouble("sellPrice1");
	this.buyPrice2 = nbt.getDouble("buyPrice2");
	this.sellPrice2 = nbt.getDouble("sellPrice2");
	this.buyPrice3 = nbt.getDouble("buyPrice3");
	this.sellPrice3 = nbt.getDouble("sellPrice3");
	this.buyPrice4 = nbt.getDouble("buyPrice4");
	this.sellPrice4 = nbt.getDouble("sellPrice4");

}

public int getQuantity(int i) {
	int qty;
	int startSlot;
	int endSlot;
	if (i == 0) {

	} else if (i == 1) {

	} else if (i == 2) {

	} else if (i == 3) {

	}
	//For loop.
	return 0;
}

public boolean isShopOpen() {
	return true;
}

public void sellItem(int i, int qty, EntityPlayer entityPlayer) {
	System.out.println("Beginning Sale Process");
	double itemCost = 0;
	if (i == 1) {
		itemCost = buyPrice1;
	}
	if (i == 2) {
		itemCost = buyPrice2;
	}
	if (i == 3) {
		itemCost = buyPrice3;
	}
	if (i == 4) {
		itemCost = buyPrice4;
	}
	double totalItemCost = itemCost * qty;
	double invCash = EconUtils.getInventoryCash(entityPlayer);
	System.out.println("Item Cost: " + totalItemCost + ", Inventory Cash: " + EconUtils.getInventoryCash(entityPlayer));

	if (invCash >= totalItemCost) {
		//Two birds, one stone. Charges the player for us, then tells us how much they paid so we can calculate change.
		double paidAmount = EconUtils.findCashInInventoryWithChange(entityPlayer, totalItemCost); //Complex code to charge the player's inventory
		if (paidAmount == 0) {
			//They didn't pay enough. Don't take the money, and tell 'em to piss off.
			return;
		} else {
			ItemStack item = getStackInSlot(i - 1);
			System.out.println("Item: " + item);
			System.out.println("Qty: " + qty);
			while (qty >= 1) {
				System.out.println("Giving " + item.stackSize + " items, " + qty + " more stacks of this to go.");
				entityPlayer.inventory.addItemStackToInventory(new ItemStack(item.getItem(), item.stackSize, item.getItemDamage()));
				qty--;
			}
		}
	}
}


public TileEntityAdminShop() {
	items = new ItemStack[4]; //Amount of stacks
}

@Override
public int getSizeInventory() {
	return items.length;
}

@Override
public ItemStack getStackInSlot(int i) {
	return items[i];
}

@Override
public ItemStack decrStackSize(int i, int amount) {
	ItemStack itemStack = getStackInSlot(i);

	if (itemStack != null) {
		if (itemStack.stackSize <= amount) {
			setInventorySlotContents(i, null);
		} else {
			itemStack = itemStack.splitStack(amount);
			onInventoryChanged(); //Update the inventory. TODO use this for card removal
		}
	}
	return itemStack;
}

@Override
public ItemStack getStackInSlotOnClosing(int i) {
	ItemStack itemStack = getStackInSlot(i);
	setInventorySlotContents(i, null);
	return itemStack;
}

@Override
public void setInventorySlotContents(int i, ItemStack itemStack) {
	if (isItemValidForSlot(i, itemStack)) {
		items[i] = itemStack;

		if (itemStack != null && itemStack.stackSize > getInventoryStackLimit()) {
			itemStack.stackSize = getInventoryStackLimit();
		}

		onInventoryChanged();
	}
}

public void addMoneyToShopInventory(int i, ItemStack itemStack, double amount) {
	if (isItemValidForSlot(i, itemStack)) {
		items[i] = itemStack;

		if (itemStack != null && itemStack.stackSize > getInventoryStackLimit()) {
			itemStack.stackSize = getInventoryStackLimit();
		}

		onInventoryChanged();
	}
}

@Override
public String getInvName() {
	return "Floating Shelves";
}

@Override //Apparently not used...
public boolean isInvNameLocalized() {
	return true;
}

//Max size of stacks placed inside.
@Override
public int getInventoryStackLimit() {
	return 64;
}

//Checks if the player can use it.
//Wouldn't work for owner only- if I did that, no one else would be able to interact (Maybe? Need to test that.)
@Override
public boolean isUseableByPlayer(EntityPlayer entityPlayer) {
	return entityPlayer.getDistanceSq(xCoord + 0.5, yCoord + 0.5, zCoord + 0.5) <= 64;
}

//Not used
@Override
public void openChest() {}

//Not used
@Override
public void closeChest() {}

//Checks that the item is valid. For shelves, use instanceof to see if it's item or block.
@Override
public boolean isItemValidForSlot(int i, ItemStack item) {
	ItemStack slot1 = getStackInSlot(0);
	ItemStack slot2 = getStackInSlot(1);
	ItemStack slot3 = getStackInSlot(2);
	ItemStack slot4 = getStackInSlot(3);
	if (item != null) {
		if (i > 3 && i <= 39) {
			return item.itemID == slot1.itemID;
		}
		if (i > 39 && i <= 75) {
			return item.itemID == slot2.itemID;
		}
		if (i > 75 && i <= 111) {
			return item.itemID == slot3.itemID;
		}
		if (i > 111 && i <= 147) {
			return item.itemID == slot4.itemID;
		}
		if (i > 147 && i <= 184) {
			if (item.getItem() instanceof ItemCoin || item.getItem() instanceof ItemNote) {
				return true;
			} else {
				return false;
			}
		} if (i > 184) {
			return false;
		}
	}
	return true;
}
}

package co.uk.silvania.cities.econ.store.container;

import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

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.inventory.Slot;
import net.minecraft.item.ItemStack;
import co.uk.silvania.cities.econ.store.entity.TileEntityAdminShop;

public class ContainerAdminShop extends Container {

private TileEntityAdminShop te;
private IInventory adminShopInventory;
public static int tabButton;

private int field_94536_g;
private int field_94535_f = -1;
private final Set field_94537_h = new HashSet();

public ContainerAdminShop(InventoryPlayer invPlayer, TileEntityAdminShop te) {
	this.te = te;
	addSlotToContainer(new Slot(te, 0, 8, 50));
	addSlotToContainer(new Slot(te, 1, 8, 72));
	addSlotToContainer(new Slot(te, 2, 8, 94));
	addSlotToContainer(new Slot(te, 3, 8, 116));
	bindPlayerInventory(invPlayer);
}



protected void bindPlayerInventory(InventoryPlayer invPlayer) {
	//C = vertical inventory slots, "columns"
	//R = horizontal inventory slots, "rows"
	for (int c = 0; c < 3; c++) {
		for (int r = 0; r < 9; r++) {
			addSlotToContainer(new Slot(invPlayer, r + c * 9 + 9, 8 + r * 18, 141 + c * 18));
		}
	}
	//H = hotbar slots
	for (int h = 0; h <9; h++) {
		addSlotToContainer(new Slot(invPlayer, h, 8 + h * 18, 199));
	}
}

@Override
public boolean canInteractWith(EntityPlayer entityPlayer) {
	return true;
}

@Override
    public ItemStack transferStackInSlot(EntityPlayer player, int slot) {
	ItemStack stack = null;
        Slot slotObject = (Slot) inventorySlots.get(slot);

        if (slotObject != null && slotObject.getHasStack()) {
        	ItemStack stackInSlot = slotObject.getStack();
        	stack = stackInSlot.copy();

        	if (slot < 9) {
        		if (!this.mergeItemStack(stackInSlot, 9, 45, true)) {
        			return null;
        		}
        	}

        	else if (!this.mergeItemStack(stackInSlot, 0, 9, false)) {
        		return null;
        	}

        	if (stackInSlot.stackSize == 10) {
        		slotObject.putStack(null);
        	} else {
        		slotObject.onSlotChanged();
        	}

        	if (stackInSlot.stackSize == stack.stackSize) {
        		return null;
        	}
        	slotObject.onPickupFromSlot(player, stackInSlot);
        }
        return stack;
}

@Override
    public void putStackInSlot(int slot, ItemStack item) {
        this.getSlot(slot).putStack(item);
    }

public IInventory getFloatingShelvesInveotry() {
	return this.adminShopInventory;
}

@Override
public ItemStack slotClick(int par1, int par2, int par3, EntityPlayer entityPlayer) {
	System.out.println("Slot clicked!");
	if (entityPlayer.capabilities.isCreativeMode) {
		super.slotClick(par1, par2, par3, entityPlayer);
	}
	return null;
}
}

Mecblader · March 15, 2014

I'm not entirely sure, but you may be able to do all the calculation on the server and use a packet handler to send the data to the client and have the client render the model.

Jdb100 · March 16, 2014

You can do this by creating a method in your tile entity to check for the item in the slot like so

public boolean hasBook(int slot)
{
// on phone so can't remember method but there is a method in IInventory to check for items in slot
if(items.unknownMethod[slot] instanceof ItemBook)
      return items.unknownMethod[slot];

Then do a check in your renderer and if so render that part of the model.

Flenix · March 16, 2014

You can do this by creating a method in your tile entity to check for the item in the slot like so
public boolean hasBook(int slot)
{
// on phone so can't remember method but there is a method in IInventory to check for items in slot
if(items.unknownMethod[slot] instanceof ItemBook)
      return items.unknownMethod[slot];
That would only work for something like Bibliocraft's bookshelf, where the physical item in the slot has no relevance to what is rendered. I need to know what itemstack is in the slot, because I'll be rendering that exact stack

Then do a check in your renderer and if so render that part of the model.

Flenix · March 17, 2014

You'll need to send packets. Easiest way is via the description packet of the TileEntity.

Awesome; any examples of this anywhere?

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[1.6.4] Rendering container stuff into a model

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