/**
* Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
* <p/>
* BuildCraft is distributed under the terms of the Minecraft Mod Public
* License 1.0, or MMPL. Please check the contents of the license located in
* http://www.mod-buildcraft.com/MMPL-1.0.txt
*/
package buildcraft.core.lib.utils;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import net.minecraft.block.Block;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import cpw.mods.fml.common.network.internal.FMLProxyPacket;
import net.minecraftforge.common.util.FakePlayer;
import net.minecraftforge.common.util.ForgeDirection;
import buildcraft.api.core.IAreaProvider;
import buildcraft.api.core.Position;
import buildcraft.api.power.IEngine;
import buildcraft.api.power.ILaserTarget;
import buildcraft.api.tiles.ITileAreaProvider;
import buildcraft.api.transport.IInjectable;
import buildcraft.api.transport.IPipeTile;
import buildcraft.core.CompatHooks;
import buildcraft.core.DefaultProps;
import buildcraft.core.internal.IDropControlInventory;
import buildcraft.core.internal.IFramePipeConnection;
import buildcraft.core.lib.block.TileBuildCraft;
import buildcraft.core.lib.engines.BlockEngineBase;
import buildcraft.core.lib.inventory.ITransactor;
import buildcraft.core.lib.inventory.InvUtils;
import buildcraft.core.lib.inventory.Transactor;
import buildcraft.core.lib.network.Packet;
public final class Utils {
public static final boolean CAULDRON_DETECTED;
public static final XorShift128Random RANDOM = new XorShift128Random();
private static final List<ForgeDirection> directions = new ArrayList<ForgeDirection>(Arrays.asList(ForgeDirection.VALID_DIRECTIONS));
static {
boolean cauldron = false;
try {
cauldron = Utils.class.getClassLoader().loadClass("org.spigotmc.SpigotConfig") != null;
} catch (ClassNotFoundException e) {
}
CAULDRON_DETECTED = cauldron;
}
/**
* Deactivate constructor
*/
private Utils() {
}
public static boolean isRegistered(Block block) {
return block != null && Block.getIdFromBlock(block) >= 0;
}
public static boolean isRegistered(Item item) {
return item != null && Item.getIdFromItem(item) >= 0;
}
public static boolean isRegistered(ItemStack stack) {
if (stack == null) {
return false;
}
Block block = Block.getBlockFromItem(stack.getItem());
if (block instanceof BlockEngineBase) {
return isRegistered(block) && ((BlockEngineBase) block).hasEngine(stack.getItemDamage());
}
return isRegistered(stack.getItem());
}
/**
* Tries to add the passed stack to any valid inventories around the given
* coordinates.
*
* @param stack
* @param world
* @param x
* @param y
* @param z
* @return amount used
*/
public static int addToRandomInventoryAround(World world, int x, int y, int z, ItemStack stack) {
Collections.shuffle(directions);
for (ForgeDirection orientation : directions) {
Position pos = new Position(x, y, z, orientation);
pos.moveForwards(1.0);
TileEntity tileInventory = BlockUtils.getTileEntity(world, (int) pos.x, (int) pos.y, (int) pos.z);
ITransactor transactor = Transactor.getTransactorFor(tileInventory);
if (transactor != null && !(tileInventory instanceof IEngine) && !(tileInventory instanceof ILaserTarget) && transactor.add(stack, orientation.getOpposite(), false).stackSize > 0) {
return transactor.add(stack, orientation.getOpposite(), true).stackSize;
}
}
return 0;
}
/**
* Returns the cardinal direction of the entity depending on its
* rotationYaw
*/
public static ForgeDirection get2dOrientation(EntityLivingBase entityliving) {
ForgeDirection[] orientationTable = {ForgeDirection.SOUTH,
ForgeDirection.WEST, ForgeDirection.NORTH, ForgeDirection.EAST};
int orientationIndex = MathHelper.floor_double((entityliving.rotationYaw + 45.0) / 90.0) & 3;
return orientationTable[orientationIndex];
}
/**
* Look around the tile given in parameter in all 6 position, tries to add
* the items to a random injectable tile around. Will make sure that the location
* from which the items are coming from (identified by the from parameter)
* isn't used again so that entities doesn't go backwards. Returns true if
* successful, false otherwise.
*/
public static int addToRandomInjectableAround(World world, int x, int y, int z, ForgeDirection from, ItemStack stack) {
List<IInjectable> possiblePipes = new ArrayList<IInjectable>();
List<ForgeDirection> pipeDirections = new ArrayList<ForgeDirection>();
for (ForgeDirection side : ForgeDirection.VALID_DIRECTIONS) {
if (from.getOpposite() == side) {
continue;
}
Position pos = new Position(x, y, z, side);
pos.moveForwards(1.0);
TileEntity tile = BlockUtils.getTileEntity(world, (int) pos.x, (int) pos.y, (int) pos.z);
if (tile instanceof IInjectable) {
if (!((IInjectable) tile).canInjectItems(side.getOpposite())) {
continue;
}
possiblePipes.add((IInjectable) tile);
pipeDirections.add(side.getOpposite());
} else {
IInjectable wrapper = CompatHooks.INSTANCE.getInjectableWrapper(tile, side);
if (wrapper != null) {
possiblePipes.add(wrapper);
pipeDirections.add(side.getOpposite());
}
}
}
if (possiblePipes.size() > 0) {
int choice = RANDOM.nextInt(possiblePipes.size());
IInjectable pipeEntry = possiblePipes.get(choice);
return pipeEntry.injectItem(stack, true, pipeDirections.get(choice), null);
}
return 0;
}
public static void dropTryIntoPlayerInventory(World world, int x, int y, int z, ItemStack stack, EntityPlayer player) {
if (player != null && player.inventory.addItemStackToInventory(stack)) {
if (player instanceof EntityPlayerMP) {
((EntityPlayerMP) player).sendContainerToPlayer(player.inventoryContainer);
}
}
InvUtils.dropItems(world, stack, x, y, z);
}
public static IAreaProvider getNearbyAreaProvider(World world, int i, int j, int k) {
for (TileEntity t : (List<TileEntity>) world.loadedTileEntityList) {
if (t instanceof ITileAreaProvider && ((ITileAreaProvider) t).isValidFromLocation(i, j, k)) {
return (IAreaProvider) t;
}
}
return null;
}
public static void preDestroyBlock(World world, int i, int j, int k) {
TileEntity tile = BlockUtils.getTileEntity(world, i, j, k);
if (tile instanceof IInventory && !world.isRemote) {
if (!(tile instanceof IDropControlInventory) || ((IDropControlInventory) tile).doDrop()) {
InvUtils.dropItems(world, (IInventory) tile, i, j, k);
InvUtils.wipeInventory((IInventory) tile);
}
}
if (tile instanceof TileBuildCraft) {
((TileBuildCraft) tile).destroy();
}
}
public static boolean isFakePlayer(EntityPlayer player) {
if (player instanceof FakePlayer) {
return true;
}
// Tip donated by skyboy - addedToChunk must be set to false by a fake player
// or it becomes a chunk-loading entity.
if (!player.addedToChunk) {
return true;
}
return false;
}
public static boolean checkPipesConnections(TileEntity tile1, TileEntity tile2) {
if (tile1 == null || tile2 == null) {
return false;
}
if (!(tile1 instanceof IPipeTile) && !(tile2 instanceof IPipeTile)) {
return false;
}
ForgeDirection o = ForgeDirection.UNKNOWN;
if (tile1.xCoord - 1 == tile2.xCoord) {
o = ForgeDirection.WEST;
} else if (tile1.xCoord + 1 == tile2.xCoord) {
o = ForgeDirection.EAST;
} else if (tile1.yCoord - 1 == tile2.yCoord) {
o = ForgeDirection.DOWN;
} else if (tile1.yCoord + 1 == tile2.yCoord) {
o = ForgeDirection.UP;
} else if (tile1.zCoord - 1 == tile2.zCoord) {
o = ForgeDirection.NORTH;
} else if (tile1.zCoord + 1 == tile2.zCoord) {
o = ForgeDirection.SOUTH;
}
if (tile1 instanceof IPipeTile && !((IPipeTile) tile1).isPipeConnected(o)) {
return false;
}
if (tile2 instanceof IPipeTile && !((IPipeTile) tile2).isPipeConnected(o.getOpposite())) {
return false;
}
return true;
}
public static boolean checkLegacyPipesConnections(IBlockAccess blockAccess, int x1, int y1, int z1, int x2, int y2, int z2) {
Block b1 = blockAccess.getBlock(x1, y1, z1);
Block b2 = blockAccess.getBlock(x2, y2, z2);
if (!(b1 instanceof IFramePipeConnection) && !(b2 instanceof IFramePipeConnection)) {
return false;
}
if (b1 instanceof IFramePipeConnection && !((IFramePipeConnection) b1).isPipeConnected(blockAccess, x1, y1, z1, x2, y2, z2)) {
return false;
}
if (b2 instanceof IFramePipeConnection && !((IFramePipeConnection) b2).isPipeConnected(blockAccess, x2, y2, z2, x1, y1, z1)) {
return false;
}
return true;
}
public static boolean isPipeConnected(IBlockAccess access, int x, int y, int z, ForgeDirection dir, IPipeTile.PipeType type) {
TileEntity tile = access.getTileEntity(x + dir.offsetX, y + dir.offsetY, z + dir.offsetZ);
return tile instanceof IPipeTile && ((IPipeTile) tile).getPipeType() == type && ((IPipeTile) tile).isPipeConnected(dir.getOpposite());
}
public static int[] createSlotArray(int first, int count) {
int[] slots = new int[count];
for (int k = first; k < first + count; k++) {
slots[k - first] = k;
}
return slots;
}
/**
* This subprogram transforms a packet into a FML packet to be send in the
* minecraft default packet mechanism. This always use BC-CORE as a
* channel, and as a result, should use discriminators declared there.
*
* WARNING! The implementation of this subprogram relies on the internal
* behavior of #FMLIndexedMessageToMessageCodec (in particular the encode
* member). It is probably opening a maintenance issue and should be
* replaced eventually by some more solid mechanism.
*/
public static FMLProxyPacket toPacket(Packet packet, int discriminator) {
ByteBuf buf = Unpooled.buffer();
buf.writeByte((byte) discriminator);
packet.writeData(buf);
return new FMLProxyPacket(buf, DefaultProps.NET_CHANNEL_NAME + "-CORE");
}
}