Java tutorial
package micdoodle8.mods.galacticraft.core.tile; import java.util.EnumSet; import java.util.HashSet; import java.util.Set; import micdoodle8.mods.galacticraft.api.transmission.core.item.IItemElectric; import micdoodle8.mods.galacticraft.core.GalacticraftCore; import micdoodle8.mods.galacticraft.core.blocks.GCCoreBlockMachine; import micdoodle8.mods.galacticraft.core.network.GCCorePacketManager; import micdoodle8.mods.galacticraft.core.network.IPacketReceiver; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.inventory.ISidedInventory; import net.minecraft.item.ItemStack; import net.minecraft.nbt.NBTTagCompound; import net.minecraft.nbt.NBTTagList; import net.minecraft.network.INetworkManager; import net.minecraft.network.packet.Packet; import net.minecraft.network.packet.Packet250CustomPayload; import net.minecraft.util.StatCollector; import net.minecraftforge.common.ForgeDirection; import com.google.common.io.ByteArrayDataInput; import cpw.mods.fml.common.network.PacketDispatcher; /** * GCCoreTileEntityEnergyStorageModule.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 GCCoreTileEntityEnergyStorageModule extends GCCoreTileEntityUniversalElectrical implements IPacketReceiver, ISidedInventory { private ItemStack[] containingItems = new ItemStack[2]; public final Set<EntityPlayer> playersUsing = new HashSet<EntityPlayer>(); public int scaledEnergyLevel; public int lastScaledEnergyLevel; @Override public void updateEntity() { super.updateEntity(); this.scaledEnergyLevel = (int) Math.floor(this.getEnergyStored() * 16 / this.getMaxEnergyStored()); if (this.scaledEnergyLevel != this.lastScaledEnergyLevel) { this.worldObj.markBlockForRenderUpdate(this.xCoord, this.yCoord, this.zCoord); } if (!this.worldObj.isRemote) { this.recharge(this.containingItems[0]); this.discharge(this.containingItems[1]); } /** * Gradually lose energy. */ this.setEnergyStored(this.getEnergyStored() - 0.00005f); if (!this.worldObj.isRemote) { this.produce(); if (this.ticks % 3 == 0) { PacketDispatcher.sendPacketToAllAround(this.xCoord, this.yCoord, this.zCoord, 40, this.worldObj.provider.dimensionId, this.getDescriptionPacket()); } } this.lastScaledEnergyLevel = this.scaledEnergyLevel; } @Override public Packet getDescriptionPacket() { return GCCorePacketManager.getPacket(GalacticraftCore.CHANNELENTITIES, this, this.getEnergyStored()); } @Override public void handlePacketData(INetworkManager network, int type, Packet250CustomPayload packet, EntityPlayer player, ByteArrayDataInput dataStream) { try { this.setEnergyStored(dataStream.readFloat()); } catch (Exception e) { e.printStackTrace(); } } @Override public void openChest() { } @Override public void closeChest() { } /** * Reads a tile entity from NBT. */ @Override public void readFromNBT(NBTTagCompound par1NBTTagCompound) { super.readFromNBT(par1NBTTagCompound); NBTTagList var2 = par1NBTTagCompound.getTagList("Items"); this.containingItems = new ItemStack[this.getSizeInventory()]; for (int var3 = 0; var3 < var2.tagCount(); ++var3) { NBTTagCompound var4 = (NBTTagCompound) var2.tagAt(var3); byte var5 = var4.getByte("Slot"); if (var5 >= 0 && var5 < this.containingItems.length) { this.containingItems[var5] = ItemStack.loadItemStackFromNBT(var4); } } } /** * Writes a tile entity to NBT. */ @Override public void writeToNBT(NBTTagCompound par1NBTTagCompound) { super.writeToNBT(par1NBTTagCompound); NBTTagList var2 = new NBTTagList(); for (int var3 = 0; var3 < this.containingItems.length; ++var3) { if (this.containingItems[var3] != null) { NBTTagCompound var4 = new NBTTagCompound(); var4.setByte("Slot", (byte) var3); this.containingItems[var3].writeToNBT(var4); var2.appendTag(var4); } } par1NBTTagCompound.setTag("Items", var2); } @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) { 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("tile.machine.1.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 boolean isInvNameLocalized() { return true; } @Override public boolean isItemValidForSlot(int slotID, ItemStack itemstack) { return itemstack.getItem() instanceof IItemElectric; } @Override public int[] getAccessibleSlotsFromSide(int slotID) { return new int[] { 0, 1 }; } @Override public boolean canInsertItem(int slotID, ItemStack itemstack, int side) { if (this.isItemValidForSlot(slotID, itemstack)) { if (slotID == 0) { return ((IItemElectric) itemstack.getItem()).getTransfer(itemstack) > 0; } else if (slotID == 1) { return ((IItemElectric) itemstack.getItem()).getElectricityStored(itemstack) > 0; } } return false; } @Override public boolean canExtractItem(int slotID, ItemStack itemstack, int side) { if (this.isItemValidForSlot(slotID, itemstack)) { if (slotID == 0) { return ((IItemElectric) itemstack.getItem()).getTransfer(itemstack) <= 0; } else if (slotID == 1) { return ((IItemElectric) itemstack.getItem()).getElectricityStored(itemstack) <= 0 || this.getEnergyStored() >= this.getMaxEnergyStored(); } } return false; } @Override public float getRequest(ForgeDirection direction) { return this.getElectricalInputDirections().contains(direction) ? this.getMaxEnergyStored() - this.getEnergyStored() : 0; } @Override public float getProvide(ForgeDirection direction) { return this.getElectricalOutputDirections().contains(direction) ? Math.min(1.3F, this.getEnergyStored()) : 0; } @Override public EnumSet<ForgeDirection> getElectricalInputDirections() { return EnumSet.of(ForgeDirection .getOrientation(this.getBlockMetadata() - GCCoreBlockMachine.STORAGE_MODULE_METADATA + 2) .getOpposite(), ForgeDirection.UNKNOWN); } @Override public EnumSet<ForgeDirection> getElectricalOutputDirections() { return EnumSet.of( ForgeDirection .getOrientation(this.getBlockMetadata() - GCCoreBlockMachine.STORAGE_MODULE_METADATA + 2), ForgeDirection.UNKNOWN); } @Override public float getMaxEnergyStored() { return 2500; } }