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.api.transmission.tile.IElectrical; 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.IInventory; import net.minecraft.inventory.ISidedInventory; import net.minecraft.item.ItemStack; import net.minecraft.item.crafting.FurnaceRecipes; 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; import cpw.mods.fml.common.network.Player; /** * GCCoreTileEntityElectricFurnace.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 GCCoreTileEntityElectricFurnace extends GCCoreTileEntityUniversalElectrical implements IElectrical, IInventory, ISidedInventory, IPacketReceiver { /** * The amount of watts required every TICK. */ public static final float WATTS_PER_TICK = 0.2f; /** * The amount of processing time required. */ public static final int PROCESS_TIME_REQUIRED = 130; /** * The amount of ticks this machine has been processing. */ public int processTicks = 0; /** * The ItemStacks that hold the items currently being used in the battery * box */ private ItemStack[] containingItems = new ItemStack[11]; /** * The amount of players using the electric furnace. */ public final Set<EntityPlayer> playersUsing = new HashSet<EntityPlayer>(); @Override public void updateEntity() { super.updateEntity(); this.discharge(this.containingItems[0]); /** * Attempts to smelt an item. */ if (!this.worldObj.isRemote) { if (this.canProcess()) { if (this.getEnergyStored() >= GCCoreTileEntityElectricFurnace.WATTS_PER_TICK) { if (this.processTicks == 0) { this.processTicks = GCCoreTileEntityElectricFurnace.PROCESS_TIME_REQUIRED; } else if (this.processTicks > 0) { this.processTicks--; /** * Process the item when the process timer is done. */ if (this.processTicks < 1) { this.smeltItem(); this.processTicks = 0; } } else { this.processTicks = 0; } } else { this.processTicks = 0; } this.setEnergyStored(this.getEnergyStored() - GCCoreTileEntityElectricFurnace.WATTS_PER_TICK); } else { this.processTicks = 0; } if (this.ticks % 3 == 0) { for (EntityPlayer player : this.playersUsing) { PacketDispatcher.sendPacketToPlayer(this.getDescriptionPacket(), (Player) player); } } } } @Override public float getRequest(ForgeDirection direction) { if (this.canProcess()) { return GCCoreTileEntityElectricFurnace.WATTS_PER_TICK; } else { return 0; } } @Override public Packet getDescriptionPacket() { return GCCorePacketManager.getPacket(GalacticraftCore.CHANNELENTITIES, this, this.processTicks); } @Override public void handlePacketData(INetworkManager network, int type, Packet250CustomPayload packet, EntityPlayer player, ByteArrayDataInput dataStream) { try { this.processTicks = dataStream.readInt(); } catch (Exception e) { e.printStackTrace(); } } @Override public void openChest() { } @Override public void closeChest() { } /** * @return Is this machine able to process its specific task? */ public boolean canProcess() { if (FurnaceRecipes.smelting().getSmeltingResult(this.containingItems[1]) == null) { return false; } if (this.containingItems[1] == null) { return false; } if (this.containingItems[2] != null) { if (!this.containingItems[2] .isItemEqual(FurnaceRecipes.smelting().getSmeltingResult(this.containingItems[1]))) { return false; } if (this.containingItems[2].stackSize + 1 > 64) { return false; } } return true; } /** * Turn one item from the furnace source stack into the appropriate smelted * item in the furnace result stack */ public void smeltItem() { if (this.canProcess()) { ItemStack resultItemStack = FurnaceRecipes.smelting().getSmeltingResult(this.containingItems[1]); if (this.containingItems[2] == null) { this.containingItems[2] = resultItemStack.copy(); } else if (this.containingItems[2].isItemEqual(resultItemStack)) { this.containingItems[2].stackSize++; } this.containingItems[1].stackSize--; if (this.containingItems[1].stackSize <= 0) { this.containingItems[1] = null; } } } /** * Reads a tile entity from NBT. */ @Override public void readFromNBT(NBTTagCompound par1NBTTagCompound) { super.readFromNBT(par1NBTTagCompound); this.processTicks = par1NBTTagCompound.getInteger("smeltingTicks"); 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); par1NBTTagCompound.setInteger("smeltingTicks", this.processTicks); 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.2.name"); } @Override public int getInventoryStackLimit() { return 64; } @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; } /** * Returns true if automation is allowed to insert the given stack (ignoring * stack size) into the given slot. */ @Override public boolean isItemValidForSlot(int slotID, ItemStack itemStack) { return slotID == 1 ? FurnaceRecipes.smelting().getSmeltingResult(itemStack) != null : slotID == 0 ? itemStack.getItem() instanceof IItemElectric : false; } /** * Get the size of the side inventory. */ @Override public int[] getAccessibleSlotsFromSide(int side) { return side == 0 ? new int[] { 2 } : side == 1 ? new int[] { 0, 1 } : new int[] { 0 }; } @Override public boolean canInsertItem(int slotID, ItemStack par2ItemStack, int par3) { return this.isItemValidForSlot(slotID, par2ItemStack); } @Override public boolean canExtractItem(int slotID, ItemStack par2ItemStack, int par3) { return slotID == 2; } @Override public EnumSet<ForgeDirection> getElectricalInputDirections() { return EnumSet.of( ForgeDirection .getOrientation(this.getBlockMetadata() - GCCoreBlockMachine.ELECTRIC_FURNACE_METADATA + 2), ForgeDirection.UNKNOWN); } @Override public EnumSet<ForgeDirection> getElectricalOutputDirections() { return EnumSet.noneOf(ForgeDirection.class); } @Override public float getProvide(ForgeDirection direction) { return 0; } @Override public float getMaxEnergyStored() { return GCCoreTileEntityElectricFurnace.WATTS_PER_TICK; } }