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Utils.java
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Utils.java
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/**
* Copyright (c) SpaceToad, 2011
* 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.util.Arrays;
import java.util.LinkedList;
import net.minecraft.block.Block;
import net.minecraft.entity.item.EntityItem;
import net.minecraft.inventory.IInventory;
import net.minecraft.inventory.InventoryLargeChest;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.tileentity.TileEntityChest;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
import net.minecraftforge.common.ForgeDirection;
import net.minecraftforge.liquids.ILiquid;
import net.minecraftforge.liquids.LiquidContainerRegistry;
import net.minecraftforge.liquids.LiquidStack;
import buildcraft.BuildCraftCore;
import buildcraft.api.core.IAreaProvider;
import buildcraft.api.core.LaserKind;
import buildcraft.api.core.Position;
import buildcraft.api.transport.IPipeConnection;
import buildcraft.api.transport.IPipeEntry;
import buildcraft.api.transport.IPipedItem;
import buildcraft.core.BlockIndex;
import buildcraft.core.EntityBlock;
import buildcraft.core.EntityPassiveItem;
import buildcraft.core.IDropControlInventory;
import buildcraft.core.IFramePipeConnection;
import buildcraft.core.TileBuildCraft;
import buildcraft.core.inventory.ITransactor;
import buildcraft.core.inventory.Transactor;
import buildcraft.core.network.ISynchronizedTile;
import buildcraft.core.network.PacketUpdate;
import buildcraft.core.proxy.CoreProxy;
import buildcraft.energy.TileEngine;
public class Utils {
public static final float pipeMinPos = 0.25F;
public static final float pipeMaxPos = 0.75F;
public static float pipeNormalSpeed = 0.01F;
/**
* Tries to add the passed stack to any valid inventories around the given coordinates.
*
* @param stack
* @param world
* @param x
* @param y
* @param z
* @param from
* @return ItemStack representing what was added.
*/
public static ItemStack addToRandomInventory(ItemStack stack, World world, int x, int y, int z, ForgeDirection from) {
LinkedList<ITransactor> possibleInventories = new LinkedList<ITransactor>();
// Determine inventories which can accept (at least part of) this stack.
for (ForgeDirection orientation : ForgeDirection.values()) {
if (from.getOpposite() == orientation) {
continue;
}
Position pos = new Position(x, y, z, orientation);
pos.moveForwards(1.0);
TileEntity tileInventory = world.getBlockTileEntity((int) pos.x, (int) pos.y, (int) pos.z);
ITransactor transactor = Transactor.getTransactorFor(tileInventory);
if (transactor != null && !(tileInventory instanceof TileEngine) && transactor.add(stack, from, false).stackSize > 0) {
possibleInventories.add(transactor);
}
}
if (possibleInventories.size() > 0) {
int choice = world.rand.nextInt(possibleInventories.size());
return possibleInventories.get(choice).add(stack, from, true);
}
ItemStack added = stack.copy();
added.stackSize = 0;
return added;
}
/**
* Depending on the kind of item in the pipe, set the floor at a different level to optimize graphical aspect.
*/
public static float getPipeFloorOf(ItemStack item) {
return pipeMinPos;
}
public 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 boolean addToRandomPipeEntry(TileEntity tile, ForgeDirection from, ItemStack items) {
World w = tile.worldObj;
LinkedList<ForgeDirection> possiblePipes = new LinkedList<ForgeDirection>();
for (int j = 0; j < 6; ++j) {
if (from.getOpposite().ordinal() == j) {
continue;
}
ForgeDirection o = ForgeDirection.values()[j];
Position pos = new Position(tile.xCoord, tile.yCoord, tile.zCoord, o);
pos.moveForwards(1.0);
TileEntity pipeEntry = w.getBlockTileEntity((int) pos.x, (int) pos.y, (int) pos.z);
if (pipeEntry instanceof IPipeEntry && ((IPipeEntry) pipeEntry).acceptItems()) {
if (pipeEntry instanceof IPipeConnection)
if (!((IPipeConnection) pipeEntry).isPipeConnected(o.getOpposite())) {
continue;
}
possiblePipes.add(o);
}
}
if (possiblePipes.size() > 0) {
int choice = w.rand.nextInt(possiblePipes.size());
Position entityPos = new Position(tile.xCoord, tile.yCoord, tile.zCoord, possiblePipes.get(choice));
Position pipePos = new Position(tile.xCoord, tile.yCoord, tile.zCoord, possiblePipes.get(choice));
entityPos.x += 0.5;
entityPos.y += getPipeFloorOf(items);
entityPos.z += 0.5;
entityPos.moveForwards(0.5);
pipePos.moveForwards(1.0);
IPipeEntry pipeEntry = (IPipeEntry) w.getBlockTileEntity((int) pipePos.x, (int) pipePos.y, (int) pipePos.z);
IPipedItem entity = new EntityPassiveItem(w, entityPos.x, entityPos.y, entityPos.z, items);
pipeEntry.entityEntering(entity, entityPos.orientation);
items.stackSize = 0;
return true;
} else
return false;
}
public static void dropItems(World world, ItemStack stack, int i, int j, int k) {
if (stack.stackSize <= 0)
return;
float f1 = 0.7F;
double d = (world.rand.nextFloat() * f1) + (1.0F - f1) * 0.5D;
double d1 = (world.rand.nextFloat() * f1) + (1.0F - f1) * 0.5D;
double d2 = (world.rand.nextFloat() * f1) + (1.0F - f1) * 0.5D;
EntityItem entityitem = new EntityItem(world, i + d, j + d1, k + d2, stack);
entityitem.delayBeforeCanPickup = 10;
world.spawnEntityInWorld(entityitem);
}
public static void dropItems(World world, IInventory inventory, int i, int j, int k) {
for (int l = 0; l < inventory.getSizeInventory(); ++l) {
ItemStack items = inventory.getStackInSlot(l);
if (items != null && items.stackSize > 0) {
dropItems(world, inventory.getStackInSlot(l).copy(), i, j, k);
}
}
}
public static TileEntity getTile(World world, Position pos, ForgeDirection step) {
Position tmp = new Position(pos);
tmp.orientation = step;
tmp.moveForwards(1.0);
return world.getBlockTileEntity((int) tmp.x, (int) tmp.y, (int) tmp.z);
}
/**
* Ensures that the given inventory is the full inventory, i.e. takes double chests into account.
*
* @param inv
* @return Modified inventory if double chest, unmodified otherwise.
*/
public static IInventory getInventory(IInventory inv) {
if (inv instanceof TileEntityChest) {
TileEntityChest chest = (TileEntityChest) inv;
Position pos = new Position(chest.xCoord, chest.yCoord, chest.zCoord);
TileEntity tile;
IInventory chest2 = null;
tile = Utils.getTile(chest.worldObj, pos, ForgeDirection.WEST);
if (tile instanceof TileEntityChest) {
chest2 = (IInventory) tile;
}
tile = Utils.getTile(chest.worldObj, pos, ForgeDirection.EAST);
if (tile instanceof TileEntityChest) {
chest2 = (IInventory) tile;
}
tile = Utils.getTile(chest.worldObj, pos, ForgeDirection.NORTH);
if (tile instanceof TileEntityChest) {
chest2 = (IInventory) tile;
}
tile = Utils.getTile(chest.worldObj, pos, ForgeDirection.SOUTH);
if (tile instanceof TileEntityChest) {
chest2 = (IInventory) tile;
}
if (chest2 != null)
return new InventoryLargeChest("", inv, chest2);
}
return inv;
}
public static IAreaProvider getNearbyAreaProvider(World world, int i, int j, int k) {
TileEntity a1 = world.getBlockTileEntity(i + 1, j, k);
TileEntity a2 = world.getBlockTileEntity(i - 1, j, k);
TileEntity a3 = world.getBlockTileEntity(i, j, k + 1);
TileEntity a4 = world.getBlockTileEntity(i, j, k - 1);
TileEntity a5 = world.getBlockTileEntity(i, j + 1, k);
TileEntity a6 = world.getBlockTileEntity(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);
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 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);
tileSynch.handleDescriptionPacket(payload);
tileSynch.postPacketHandling(payload);
}
}
public static int liquidId(int blockId) {
if (blockId == Block.waterStill.blockID || blockId == Block.waterMoving.blockID)
return Block.waterStill.blockID;
else if (blockId == Block.lavaStill.blockID || blockId == Block.lavaMoving.blockID)
return Block.lavaStill.blockID;
else if (Block.blocksList[blockId] instanceof ILiquid)
return ((ILiquid) Block.blocksList[blockId]).stillLiquidId();
else
return 0;
}
public static LiquidStack liquidFromBlockId(int blockId) {
if (blockId == Block.waterStill.blockID || blockId == Block.waterMoving.blockID)
return new LiquidStack(Block.waterStill.blockID, LiquidContainerRegistry.BUCKET_VOLUME, 0);
else if (blockId == Block.lavaStill.blockID || blockId == Block.lavaMoving.blockID)
return new LiquidStack(Block.lavaStill.blockID, LiquidContainerRegistry.BUCKET_VOLUME, 0);
else if (Block.blocksList[blockId] instanceof ILiquid) {
ILiquid liquid = (ILiquid) Block.blocksList[blockId];
if (liquid.isMetaSensitive())
return new LiquidStack(liquid.stillLiquidId(), LiquidContainerRegistry.BUCKET_VOLUME, liquid.stillLiquidMeta());
else
return new LiquidStack(liquid.stillLiquidId(), LiquidContainerRegistry.BUCKET_VOLUME, 0);
} else
return null;
}
public static void preDestroyBlock(World world, int i, int j, int k) {
TileEntity tile = world.getBlockTileEntity(i, j, k);
if (tile instanceof IInventory && !CoreProxy.proxy.isRenderWorld(world))
if (!(tile instanceof IDropControlInventory) || ((IDropControlInventory) tile).doDrop()) {
dropItems(world, (IInventory) tile, i, j, k);
}
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 IPipeConnection) && !(tile2 instanceof IPipeConnection))
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 IPipeConnection && !((IPipeConnection) tile1).isPipeConnected(o))
return false;
if (tile2 instanceof IPipeConnection && !((IPipeConnection) tile2).isPipeConnected(o.getOpposite()))
return false;
return true;
}
public static boolean checkPipesConnections(IBlockAccess blockAccess, TileEntity tile1, int x2, int y2, int z2) {
TileEntity tile2 = blockAccess.getBlockTileEntity(x2, y2, z2);
return checkPipesConnections(tile1, tile2);
}
public static boolean checkLegacyPipesConnections(IBlockAccess blockAccess, int x1, int y1, int z1, int x2, int y2, int z2) {
Block b1 = Block.blocksList[blockAccess.getBlockId(x1, y1, z1)];
Block b2 = Block.blocksList[blockAccess.getBlockId(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 void readStacksFromNBT(NBTTagCompound nbt, String name, ItemStack[] stacks) {
NBTTagList nbttaglist = nbt.getTagList(name);
for (int i = 0; i < stacks.length; ++i)
if (i < nbttaglist.tagCount()) {
NBTTagCompound nbttagcompound2 = (NBTTagCompound) nbttaglist.tagAt(i);
stacks[i] = ItemStack.loadItemStackFromNBT(nbttagcompound2);
} else {
stacks[i] = null;
}
}
public static void readStacksFromNBT(NBTTagCompound nbt, String name, IInventory inv) {
NBTTagList nbttaglist = nbt.getTagList(name);
for (int i = 0; i < inv.getSizeInventory(); ++i)
if (i < nbttaglist.tagCount()) {
NBTTagCompound nbttagcompound2 = (NBTTagCompound) nbttaglist.tagAt(i);
inv.setInventorySlotContents(i, ItemStack.loadItemStackFromNBT(nbttagcompound2));
} else {
inv.setInventorySlotContents(i, null);
}
}
public static void writeStacksToNBT(NBTTagCompound nbt, String name, ItemStack[] stacks) {
NBTTagList nbttaglist = new NBTTagList();
for (int i = 0; i < stacks.length; ++i) {
NBTTagCompound cpt = new NBTTagCompound();
nbttaglist.appendTag(cpt);
if (stacks[i] != null) {
stacks[i].writeToNBT(cpt);
}
}
nbt.setTag(name, nbttaglist);
}
public static void writeStacksToNBT(NBTTagCompound nbt, String name, IInventory inv) {
NBTTagList nbttaglist = new NBTTagList();
for (int i = 0; i < inv.getSizeInventory(); ++i) {
NBTTagCompound cpt = new NBTTagCompound();
nbttaglist.appendTag(cpt);
if (inv.getStackInSlot(i) != null) {
inv.getStackInSlot(i).writeToNBT(cpt);
}
}
nbt.setTag(name, nbttaglist);
}
public static ItemStack consumeItem(ItemStack stack) {
if (stack.stackSize == 1) {
if (stack.getItem().hasContainerItem())
return stack.getItem().getContainerItemStack(stack);
else
return null;
} else {
stack.splitStack(1);
return stack;
}
}
public static <T> T[] concat(T[] first, T[] second) {
T[] result = Arrays.copyOf(first, first.length + second.length);
System.arraycopy(second, 0, result, first.length, second.length);
return result;
}
public static int[] concat(int[] first, int[] second) {
int[] result = Arrays.copyOf(first, first.length + second.length);
System.arraycopy(second, 0, result, first.length, second.length);
return result;
}
public static float[] concat(float[] first, float[] second) {
float[] result = Arrays.copyOf(first, first.length + second.length);
System.arraycopy(second, 0, result, first.length, second.length);
return result;
}
}