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Weird Behaviour with TileEntity Container (Items getting dropped when clicked)


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Hello. I have this intriguing problem here: I have this TileEntity that functions somewhat like a chest, with 12x9 slots...


Here's the problem: Based on



The blank spots are the places where, when an Item is present (regardless of stack size), when I click on it, it gets dropped. Left-click drops 1, right-click drops the whole stack.


The slots with items inside behave normally...


Here are the relevant code files:

TileEntity: http://pastebin.com/pXHAuCW9

Container: http://pastebin.com/BBSy4nMh

Gui: http://pastebin.com/tWqC8jWr


Help? This was a direct result of porting the mod over to 1.5, I didn't have any problems with this in 1.4.7 and I suspect it's the new inventory features that's causing it...


Any help is much appreciated, thanks!

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I believe the code that's causing that behavior is in your block class. Here's the code I use:

private void dropItems(World world, int x, int y, int z){

                Random rand = new Random();


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

                if (!(tileEntity instanceof IInventory)) {



                IInventory inventory = (IInventory) tileEntity;


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

                        ItemStack item = inventory.getStackInSlot(i);


                        if (item != null && item.stackSize > 0) {

                                float rx = rand.nextFloat() * 0.8F + 0.1F;

                                float ry = rand.nextFloat() * 0.8F + 0.1F;

                                float rz = rand.nextFloat() * 0.8F + 0.1F;


                                EntityItem entityItem = new EntityItem(world,

                                                x + rx, y + ry, z + rz,

                                                new ItemStack(item.itemID, item.stackSize, item.getItemDamage()));


                                if (item.hasTagCompound()) {

                                        //entityItems.setTagCompound((NBTTagCompound) item.getTagCompound().copy());



                                float factor = 0.05F;

                                entityItem.motionX = rand.nextGaussian() * factor;

                                entityItem.motionY = rand.nextGaussian() * factor + 0.2F;

                                entityItem.motionZ = rand.nextGaussian() * factor;


                                item.stackSize = 0;




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  • 2 weeks later...

im having the EXACT same problem, i have been able to see that its coming from either the Container, the TileEntity or both. So far i simply passed a ContainerChest to my block/tileentity/gui and the clicking problems seems to be solved. i need to investiate more so ill copy the whole ContainerChest into my custom Container and try to understand exactly how our code is causing the problem


EDIT: it seems container have a certain area(on the screen) themselves, and clicking on a slot that is outside that area will insta-drop the item


EDIT 2: i was right bout the slot behing "out of range of the gui" to fix it, make sur in your gui you resize the xSize and ySize of your gui to fit the length and width of your container placement, also modify guiLeft and guiTop if needed

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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