/**
* Copyright (c) 2011-2014, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* 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.utils;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import java.util.Random;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import net.minecraft.block.Block;
import net.minecraft.entity.EntityLivingBase;
import net.minecraft.inventory.IInventory;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.CompressedStreamTools;
import net.minecraft.nbt.NBTSizeTracker;
import net.minecraft.nbt.NBTTagCompound;
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.ForgeDirection;
import buildcraft.BuildCraftCore;
import buildcraft.api.core.BlockIndex;
import buildcraft.api.core.IAreaProvider;
import buildcraft.api.core.Position;
import buildcraft.api.transport.IPipeTile;
import buildcraft.api.transport.IPipeTile.PipeType;
import buildcraft.core.DefaultProps;
import buildcraft.core.EntityBlock;
import buildcraft.core.IDropControlInventory;
import buildcraft.core.IFramePipeConnection;
import buildcraft.core.LaserData;
import buildcraft.core.LaserKind;
import buildcraft.core.TileBuildCraft;
import buildcraft.core.inventory.ITransactor;
import buildcraft.core.inventory.InvUtils;
import buildcraft.core.inventory.Transactor;
import buildcraft.core.network.BuildCraftPacket;
import buildcraft.core.network.ISynchronizedTile;
import buildcraft.core.network.PacketUpdate;
import buildcraft.core.proxy.CoreProxy;
import buildcraft.energy.TileEngine;
public final class Utils {
public static final Random RANDOM = new Random();
private static final List<ForgeDirection> directions = new ArrayList<ForgeDirection>(Arrays.asList(ForgeDirection.VALID_DIRECTIONS));
/**
* Deactivate constructor
*/
private Utils() {
}
/* IINVENTORY HELPERS */
/**
* 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 = world.getTileEntity((int) pos.x, (int) pos.y, (int) pos.z);
ITransactor transactor = Transactor.getTransactorFor(tileInventory);
if (transactor != null && !(tileInventory instanceof TileEngine) && 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];
}
/*
* FIXME This is only kept here for the purpose of get3dOrientation, which
* should probably be removed following the same principles
*/
@Deprecated
private static ForgeDirection get2dOrientation(Position pos1, Position pos2) {
double dX = pos1.x - pos2.x;
double dZ = pos1.z - pos2.z;
double angle = Math.atan2(dZ, dX) / Math.PI * 180 + 180;
if (angle < 45 || angle > 315) {
return ForgeDirection.EAST;
} else if (angle < 135) {
return ForgeDirection.SOUTH;
} else if (angle < 225) {
return ForgeDirection.WEST;
} else {
return ForgeDirection.NORTH;
}
}
public static ForgeDirection get3dOrientation(Position pos1, Position pos2) {
double dX = pos1.x - pos2.x;
double dY = pos1.y - pos2.y;
double angle = Math.atan2(dY, dX) / Math.PI * 180 + 180;
if (angle > 45 && angle < 135) {
return ForgeDirection.UP;
} else if (angle > 225 && angle < 315) {
return ForgeDirection.DOWN;
} else {
return get2dOrientation(pos1, pos2);
}
}
/**
* Look around the tile given in parameter in all 6 position, tries to add
* the items to a random pipe entry 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 addToRandomPipeAround(World world, int x, int y, int z, ForgeDirection from, ItemStack stack) {
List<IPipeTile> possiblePipes = new ArrayList<IPipeTile>();
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 = world.getTileEntity((int) pos.x, (int) pos.y, (int) pos.z);
if (tile instanceof IPipeTile) {
IPipeTile pipe = (IPipeTile) tile;
if (pipe.getPipeType() != PipeType.ITEM) {
continue;
}
if (!pipe.isPipeConnected(side.getOpposite())) {
continue;
}
possiblePipes.add(pipe);
pipeDirections.add(side.getOpposite());
}
}
if (possiblePipes.size() > 0) {
int choice = RANDOM.nextInt(possiblePipes.size());
IPipeTile pipeEntry = possiblePipes.get(choice);
return pipeEntry.injectItem(stack, true, pipeDirections.get(choice));
}
return 0;
}
public static TileEntity getTile(World world, Position pos, ForgeDirection step) {
Position tmp = new Position(pos);
tmp.orientation = step;
tmp.moveForwards(1.0);
return world.getTileEntity((int) tmp.x, (int) tmp.y, (int) tmp.z);
}
public static IAreaProvider getNearbyAreaProvider(World world, int i, int j, int k) {
TileEntity a1 = world.getTileEntity(i + 1, j, k);
TileEntity a2 = world.getTileEntity(i - 1, j, k);
TileEntity a3 = world.getTileEntity(i, j, k + 1);
TileEntity a4 = world.getTileEntity(i, j, k - 1);
TileEntity a5 = world.getTileEntity(i, j + 1, k);
TileEntity a6 = world.getTileEntity(i, j - 1, k);
if (a1 instanceof IAreaProvider) {
return (IAreaProvider) a1;
}
if (a2 instanceof IAreaProvider) {
return (IAreaProvider) a2;
}
if (a3 instanceof IAreaProvider) {
return (IAreaProvider) a3;
}
if (a4 instanceof IAreaProvider) {
return (IAreaProvider) a4;
}
if (a5 instanceof IAreaProvider) {
return (IAreaProvider) a5;
}
if (a6 instanceof IAreaProvider) {
return (IAreaProvider) a6;
}
return null;
}
public static EntityBlock createLaser(World world, Position p1, Position p2, LaserKind kind) {
if (p1.equals(p2)) {
return null;
}
double iSize = p2.x - p1.x;
double jSize = p2.y - p1.y;
double kSize = p2.z - p1.z;
double i = p1.x;
double j = p1.y;
double k = p1.z;
if (iSize != 0) {
i += 0.5;
j += 0.45;
k += 0.45;
jSize = 0.10;
kSize = 0.10;
} else if (jSize != 0) {
i += 0.45;
j += 0.5;
k += 0.45;
iSize = 0.10;
kSize = 0.10;
} else if (kSize != 0) {
i += 0.45;
j += 0.45;
k += 0.5;
iSize = 0.10;
jSize = 0.10;
}
EntityBlock block = CoreProxy.proxy.newEntityBlock(world, i, j, k, iSize, jSize, kSize, kind);
block.setBrightness(210);
world.spawnEntityInWorld(block);
return block;
}
public static EntityBlock[] createLaserBox(World world, double xMin, double yMin, double zMin, double xMax, double yMax, double zMax, LaserKind kind) {
EntityBlock[] lasers = new EntityBlock[12];
Position[] p = new Position[8];
p[0] = new Position(xMin, yMin, zMin);
p[1] = new Position(xMax, yMin, zMin);
p[2] = new Position(xMin, yMax, zMin);
p[3] = new Position(xMax, yMax, zMin);
p[4] = new Position(xMin, yMin, zMax);
p[5] = new Position(xMax, yMin, zMax);
p[6] = new Position(xMin, yMax, zMax);
p[7] = new Position(xMax, yMax, zMax);
lasers[0] = Utils.createLaser(world, p[0], p[1], kind);
lasers[1] = Utils.createLaser(world, p[0], p[2], kind);
lasers[2] = Utils.createLaser(world, p[2], p[3], kind);
lasers[3] = Utils.createLaser(world, p[1], p[3], kind);
lasers[4] = Utils.createLaser(world, p[4], p[5], kind);
lasers[5] = Utils.createLaser(world, p[4], p[6], kind);
lasers[6] = Utils.createLaser(world, p[5], p[7], kind);
lasers[7] = Utils.createLaser(world, p[6], p[7], kind);
lasers[8] = Utils.createLaser(world, p[0], p[4], kind);
lasers[9] = Utils.createLaser(world, p[1], p[5], kind);
lasers[10] = Utils.createLaser(world, p[2], p[6], kind);
lasers[11] = Utils.createLaser(world, p[3], p[7], kind);
return lasers;
}
public static LaserData[] createLaserDataBox(double xMin, double yMin, double zMin, double xMax, double yMax, double zMax) {
LaserData[] lasers = new LaserData[12];
Position[] p = new Position[8];
p[0] = new Position(xMin, yMin, zMin);
p[1] = new Position(xMax, yMin, zMin);
p[2] = new Position(xMin, yMax, zMin);
p[3] = new Position(xMax, yMax, zMin);
p[4] = new Position(xMin, yMin, zMax);
p[5] = new Position(xMax, yMin, zMax);
p[6] = new Position(xMin, yMax, zMax);
p[7] = new Position(xMax, yMax, zMax);
lasers[0] = new LaserData (p[0], p[1]);
lasers[1] = new LaserData (p[0], p[2]);
lasers[2] = new LaserData (p[2], p[3]);
lasers[3] = new LaserData (p[1], p[3]);
lasers[4] = new LaserData (p[4], p[5]);
lasers[5] = new LaserData (p[4], p[6]);
lasers[6] = new LaserData (p[5], p[7]);
lasers[7] = new LaserData (p[6], p[7]);
lasers[8] = new LaserData (p[0], p[4]);
lasers[9] = new LaserData (p[1], p[5]);
lasers[10] = new LaserData (p[2], p[6]);
lasers[11] = new LaserData (p[3], p[7]);
return lasers;
}
public static void handleBufferedDescription(ISynchronizedTile tileSynch) {
TileEntity tile = (TileEntity) tileSynch;
BlockIndex index = new BlockIndex(tile.xCoord, tile.yCoord, tile.zCoord);
if (BuildCraftCore.bufferedDescriptions.containsKey(index)) {
PacketUpdate payload = BuildCraftCore.bufferedDescriptions.get(index);
BuildCraftCore.bufferedDescriptions.remove(index);
try {
tileSynch.handleDescriptionPacket(payload);
} catch (IOException ex) {
ex.printStackTrace();
}
tileSynch.postPacketHandling(payload);
}
}
public static void preDestroyBlock(World world, int i, int j, int k) {
TileEntity tile = world.getTileEntity(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 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 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;
}
public static void writeUTF (ByteBuf data, String str) {
try {
if (str == null) {
data.writeInt(0);
return;
}
byte [] b = str.getBytes("UTF-8");
data.writeInt (b.length);
data.writeBytes(b);
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
data.writeInt (0);
}
}
public static String readUTF (ByteBuf data) {
try {
int len = data.readInt();
if (len == 0) {
return "";
}
byte [] b = new byte [len];
data.readBytes(b);
return new String (b, "UTF-8");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
return null;
}
}
public static void writeNBT (ByteBuf data, NBTTagCompound nbt) {
try {
byte[] compressed = CompressedStreamTools.compress(nbt);
data.writeInt(compressed.length);
data.writeBytes(compressed);
} catch (IOException e) {
e.printStackTrace();
}
}
public static NBTTagCompound readNBT(ByteBuf data) {
try {
int length = data.readInt();
byte[] compressed = new byte[length];
data.readBytes(compressed);
return CompressedStreamTools.func_152457_a(compressed, NBTSizeTracker.field_152451_a);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
public static void writeStack (ByteBuf data, ItemStack stack) {
if (stack == null) {
data.writeBoolean(false);
} else {
data.writeBoolean(true);
NBTTagCompound nbt = new NBTTagCompound();
stack.writeToNBT(nbt);
Utils.writeNBT(data, nbt);
}
}
public static ItemStack readStack(ByteBuf data) {
if (!data.readBoolean()) {
return null;
} else {
NBTTagCompound nbt = readNBT(data);
return ItemStack.loadItemStackFromNBT(nbt);
}
}
/**
* 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 (BuildCraftPacket packet, int discriminator) {
ByteBuf buf = Unpooled.buffer();
buf.writeByte((byte) discriminator);
packet.writeData(buf);
return new FMLProxyPacket(buf, DefaultProps.NET_CHANNEL_NAME + "-CORE");
}
}