Java tutorial
package micdoodle8.mods.galacticraft.core.tile; import java.util.EnumSet; import micdoodle8.mods.galacticraft.api.transmission.core.item.IItemElectric; import micdoodle8.mods.galacticraft.core.GalacticraftCore; import micdoodle8.mods.galacticraft.core.items.GCCoreItemOxygenTank; import micdoodle8.mods.galacticraft.core.network.GCCorePacketManager; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.inventory.IInventory; import net.minecraft.inventory.ISidedInventory; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.nbt.NBTTagList; import net.minecraft.network.packet.Packet; import net.minecraft.util.StatCollector; import net.minecraftforge.common.ForgeDirection; import com.google.common.io.ByteArrayDataInput; /** * GCCoreTileEntityOxygenCompressor.java * * This file is part of the Galacticraft project * * @author micdoodle8 * @license Lesser GNU Public License v3 (http://www.gnu.org/licenses/lgpl.html) * */ public class GCCoreTileEntityOxygenCompressor extends GCCoreTileEntityOxygen implements IInventory, ISidedInventory { private ItemStack[] containingItems = new ItemStack[2]; public static final float WATTS_PER_TICK = 0.2F; public static final int TANK_TRANSFER_SPEED = 1; public GCCoreTileEntityOxygenCompressor() { super(GCCoreTileEntityOxygenCompressor.WATTS_PER_TICK, 50, 1200, 0); } @Override public void updateEntity() { super.updateEntity(); if (!this.worldObj.isRemote) { if (this.storedOxygen > 0 && this.getEnergyStored() > 0) { if (!this.worldObj.isRemote) { if (this.containingItems[0] != null) { ItemStack tank0 = this.containingItems[0]; if (tank0.getItem() instanceof GCCoreItemOxygenTank && tank0.getItemDamage() > 0) { tank0.setItemDamage( tank0.getItemDamage() - GCCoreTileEntityOxygenCompressor.TANK_TRANSFER_SPEED); this.storedOxygen -= GCCoreTileEntityOxygenCompressor.TANK_TRANSFER_SPEED; } } } } } } @Override public void readFromNBT(NBTTagCompound par1NBTTagCompound) { super.readFromNBT(par1NBTTagCompound); final NBTTagList var2 = par1NBTTagCompound.getTagList("Items"); this.containingItems = new ItemStack[this.getSizeInventory()]; for (int var3 = 0; var3 < var2.tagCount(); ++var3) { final NBTTagCompound var4 = (NBTTagCompound) var2.tagAt(var3); final byte var5 = var4.getByte("Slot"); if (var5 >= 0 && var5 < this.containingItems.length) { this.containingItems[var5] = ItemStack.loadItemStackFromNBT(var4); } } } @Override public void writeToNBT(NBTTagCompound par1NBTTagCompound) { super.writeToNBT(par1NBTTagCompound); final NBTTagList list = new NBTTagList(); for (int var3 = 0; var3 < this.containingItems.length; ++var3) { if (this.containingItems[var3] != null) { final NBTTagCompound var4 = new NBTTagCompound(); var4.setByte("Slot", (byte) var3); this.containingItems[var3].writeToNBT(var4); list.appendTag(var4); } } par1NBTTagCompound.setTag("Items", list); } @Override public int getSizeInventory() { return this.containingItems.length; } @Override public ItemStack getStackInSlot(int par1) { return this.containingItems[par1]; } @Override public ItemStack decrStackSize(int par1, int par2) { if (this.containingItems[par1] != null) { ItemStack var3; if (this.containingItems[par1].stackSize <= par2) { var3 = this.containingItems[par1]; this.containingItems[par1] = null; return var3; } else { var3 = this.containingItems[par1].splitStack(par2); if (this.containingItems[par1].stackSize == 0) { this.containingItems[par1] = null; } return var3; } } else { return null; } } @Override public ItemStack getStackInSlotOnClosing(int par1) { if (this.containingItems[par1] != null) { final ItemStack var2 = this.containingItems[par1]; this.containingItems[par1] = null; return var2; } else { return null; } } @Override public void setInventorySlotContents(int par1, ItemStack par2ItemStack) { this.containingItems[par1] = par2ItemStack; if (par2ItemStack != null && par2ItemStack.stackSize > this.getInventoryStackLimit()) { par2ItemStack.stackSize = this.getInventoryStackLimit(); } } @Override public String getInvName() { return StatCollector.translateToLocal("container.oxygencompressor.name"); } @Override public int getInventoryStackLimit() { return 1; } @Override public boolean isUseableByPlayer(EntityPlayer par1EntityPlayer) { return this.worldObj.getBlockTileEntity(this.xCoord, this.yCoord, this.zCoord) != this ? false : par1EntityPlayer.getDistanceSq(this.xCoord + 0.5D, this.yCoord + 0.5D, this.zCoord + 0.5D) <= 64.0D; } @Override public void openChest() { } @Override public void closeChest() { } // ISidedInventory Implementation: @Override public int[] getAccessibleSlotsFromSide(int side) { return new int[] { 0, 1 }; } @Override public boolean canInsertItem(int slotID, ItemStack itemstack, int side) { if (this.isItemValidForSlot(slotID, itemstack)) { switch (slotID) { case 0: return itemstack.getItemDamage() > 1; case 1: return ((IItemElectric) itemstack.getItem()).getElectricityStored(itemstack) > 0; default: return false; } } return false; } @Override public boolean canExtractItem(int slotID, ItemStack itemstack, int side) { if (this.isItemValidForSlot(slotID, itemstack)) { switch (slotID) { case 0: return itemstack.getItemDamage() == 0; case 1: return ((IItemElectric) itemstack.getItem()).getElectricityStored(itemstack) <= 0 || !this.shouldPullEnergy(); default: return false; } } return false; } @Override public boolean isItemValidForSlot(int slotID, ItemStack itemstack) { switch (slotID) { case 0: return itemstack.getItem() instanceof GCCoreItemOxygenTank; case 1: return itemstack.getItem() instanceof IItemElectric; } return false; } @Override public boolean isInvNameLocalized() { return true; } @Override public boolean shouldPullEnergy() { return this.getEnergyStored() <= this.getMaxEnergyStored() - this.ueWattsPerTick; } @Override public boolean shouldUseEnergy() { return GCCoreTileEntityOxygen.timeSinceOxygenRequest > 0 && this.getStackInSlot(0) != null; } @Override public void readPacket(ByteArrayDataInput data) { if (this.worldObj.isRemote) { this.setOxygenStored(data.readFloat()); this.setEnergyStored(data.readFloat()); this.disabled = data.readBoolean(); } } @Override public Packet getPacket() { return GCCorePacketManager.getPacket(GalacticraftCore.CHANNELENTITIES, this, this.getOxygenStored(), this.getEnergyStored(), this.disabled); } @Override public ForgeDirection getElectricInputDirection() { return ForgeDirection.getOrientation(this.getBlockMetadata() + 2); } @Override public ItemStack getBatteryInSlot() { return this.getStackInSlot(1); } @Override public boolean shouldPullOxygen() { return this.getEnergyStored() > 0; } @Override public boolean shouldUseOxygen() { return false; } @Override public EnumSet<ForgeDirection> getOxygenInputDirections() { return EnumSet.of(this.getElectricInputDirection().getOpposite()); } @Override public EnumSet<ForgeDirection> getOxygenOutputDirections() { return EnumSet.noneOf(ForgeDirection.class); } }