package net.minecraft.block;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Random;
import java.util.Set;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.item.Item;
import net.minecraft.util.AxisAlignedBB;
import net.minecraft.util.Direction;
import net.minecraft.util.Icon;
import net.minecraft.world.ChunkPosition;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
public class BlockRedstoneWire extends Block
{
/**
* When false, power transmission methods do not look at other redstone wires. Used internally during
* updateCurrentStrength.
*/
private boolean wiresProvidePower = true;
private Set blocksNeedingUpdate = new HashSet();
@SideOnly(Side.CLIENT)
private Icon field_94413_c;
@SideOnly(Side.CLIENT)
private Icon field_94410_cO;
@SideOnly(Side.CLIENT)
private Icon field_94411_cP;
@SideOnly(Side.CLIENT)
private Icon field_94412_cQ;
public BlockRedstoneWire(int par1)
{
super(par1, Material.circuits);
this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.0625F, 1.0F);
}
/**
* Returns a bounding box from the pool of bounding boxes (this means this box can change after the pool has been
* cleared to be reused)
*/
public AxisAlignedBB getCollisionBoundingBoxFromPool(World par1World, int par2, int par3, int par4)
{
return null;
}
/**
* Is this block (a) opaque and (b) a full 1m cube? This determines whether or not to render the shared face of two
* adjacent blocks and also whether the player can attach torches, redstone wire, etc to this block.
*/
public boolean isOpaqueCube()
{
return false;
}
/**
* If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
*/
public boolean renderAsNormalBlock()
{
return false;
}
/**
* The type of render function that is called for this block
*/
public int getRenderType()
{
return 5;
}
@SideOnly(Side.CLIENT)
/**
* Returns a integer with hex for 0xrrggbb with this color multiplied against the blocks color. Note only called
* when first determining what to render.
*/
public int colorMultiplier(IBlockAccess par1IBlockAccess, int par2, int par3, int par4)
{
return 8388608;
}
/**
* Checks to see if its valid to put this block at the specified coordinates. Args: world, x, y, z
*/
public boolean canPlaceBlockAt(World par1World, int par2, int par3, int par4)
{
return par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) || par1World.getBlockId(par2, par3 - 1, par4) == Block.glowStone.blockID;
}
/**
* Sets the strength of the wire current (0-15) for this block based on neighboring blocks and propagates to
* neighboring redstone wires
*/
private void updateAndPropagateCurrentStrength(World par1World, int par2, int par3, int par4)
{
this.calculateCurrentChanges(par1World, par2, par3, par4, par2, par3, par4);
ArrayList arraylist = new ArrayList(this.blocksNeedingUpdate);
this.blocksNeedingUpdate.clear();
for (int l = 0; l < arraylist.size(); ++l)
{
ChunkPosition chunkposition = (ChunkPosition)arraylist.get(l);
par1World.notifyBlocksOfNeighborChange(chunkposition.x, chunkposition.y, chunkposition.z, this.blockID);
}
}
private void calculateCurrentChanges(World par1World, int par2, int par3, int par4, int par5, int par6, int par7)
{
int k1 = par1World.getBlockMetadata(par2, par3, par4);
byte b0 = 0;
int l1 = this.getMaxCurrentStrength(par1World, par5, par6, par7, b0);
this.wiresProvidePower = false;
int i2 = par1World.getStrongestIndirectPower(par2, par3, par4);
this.wiresProvidePower = true;
if (i2 > 0 && i2 > l1 - 1)
{
l1 = i2;
}
int j2 = 0;
for (int k2 = 0; k2 < 4; ++k2)
{
int l2 = par2;
int i3 = par4;
if (k2 == 0)
{
l2 = par2 - 1;
}
if (k2 == 1)
{
++l2;
}
if (k2 == 2)
{
i3 = par4 - 1;
}
if (k2 == 3)
{
++i3;
}
if (l2 != par5 || i3 != par7)
{
j2 = this.getMaxCurrentStrength(par1World, l2, par3, i3, j2);
}
if (par1World.isBlockNormalCube(l2, par3, i3) && !par1World.isBlockNormalCube(par2, par3 + 1, par4))
{
if ((l2 != par5 || i3 != par7) && par3 >= par6)
{
j2 = this.getMaxCurrentStrength(par1World, l2, par3 + 1, i3, j2);
}
}
else if (!par1World.isBlockNormalCube(l2, par3, i3) && (l2 != par5 || i3 != par7) && par3 <= par6)
{
j2 = this.getMaxCurrentStrength(par1World, l2, par3 - 1, i3, j2);
}
}
if (j2 > l1)
{
l1 = j2 - 1;
}
else if (l1 > 0)
{
--l1;
}
else
{
l1 = 0;
}
if (i2 > l1 - 1)
{
l1 = i2;
}
if (k1 != l1)
{
par1World.setBlockMetadataWithNotify(par2, par3, par4, l1, 2);
this.blocksNeedingUpdate.add(new ChunkPosition(par2, par3, par4));
this.blocksNeedingUpdate.add(new ChunkPosition(par2 - 1, par3, par4));
this.blocksNeedingUpdate.add(new ChunkPosition(par2 + 1, par3, par4));
this.blocksNeedingUpdate.add(new ChunkPosition(par2, par3 - 1, par4));
this.blocksNeedingUpdate.add(new ChunkPosition(par2, par3 + 1, par4));
this.blocksNeedingUpdate.add(new ChunkPosition(par2, par3, par4 - 1));
this.blocksNeedingUpdate.add(new ChunkPosition(par2, par3, par4 + 1));
}
}
/**
* Calls World.notifyBlocksOfNeighborChange() for all neighboring blocks, but only if the given block is a redstone
* wire.
*/
private void notifyWireNeighborsOfNeighborChange(World par1World, int par2, int par3, int par4)
{
if (par1World.getBlockId(par2, par3, par4) == this.blockID)
{
par1World.notifyBlocksOfNeighborChange(par2, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
}
}
/**
* Called whenever the block is added into the world. Args: world, x, y, z
*/
public void onBlockAdded(World par1World, int par2, int par3, int par4)
{
super.onBlockAdded(par1World, par2, par3, par4);
if (!par1World.isRemote)
{
this.updateAndPropagateCurrentStrength(par1World, par2, par3, par4);
par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
this.notifyWireNeighborsOfNeighborChange(par1World, par2 - 1, par3, par4);
this.notifyWireNeighborsOfNeighborChange(par1World, par2 + 1, par3, par4);
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3, par4 - 1);
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3, par4 + 1);
if (par1World.isBlockNormalCube(par2 - 1, par3, par4))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 - 1, par3 + 1, par4);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 - 1, par3 - 1, par4);
}
if (par1World.isBlockNormalCube(par2 + 1, par3, par4))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 + 1, par3 + 1, par4);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 + 1, par3 - 1, par4);
}
if (par1World.isBlockNormalCube(par2, par3, par4 - 1))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 + 1, par4 - 1);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 - 1, par4 - 1);
}
if (par1World.isBlockNormalCube(par2, par3, par4 + 1))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 + 1, par4 + 1);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 - 1, par4 + 1);
}
}
}
/**
* ejects contained items into the world, and notifies neighbours of an update, as appropriate
*/
public void breakBlock(World par1World, int par2, int par3, int par4, int par5, int par6)
{
super.breakBlock(par1World, par2, par3, par4, par5, par6);
if (!par1World.isRemote)
{
par1World.notifyBlocksOfNeighborChange(par2, par3 + 1, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3 - 1, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID);
this.updateAndPropagateCurrentStrength(par1World, par2, par3, par4);
this.notifyWireNeighborsOfNeighborChange(par1World, par2 - 1, par3, par4);
this.notifyWireNeighborsOfNeighborChange(par1World, par2 + 1, par3, par4);
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3, par4 - 1);
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3, par4 + 1);
if (par1World.isBlockNormalCube(par2 - 1, par3, par4))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 - 1, par3 + 1, par4);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 - 1, par3 - 1, par4);
}
if (par1World.isBlockNormalCube(par2 + 1, par3, par4))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 + 1, par3 + 1, par4);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2 + 1, par3 - 1, par4);
}
if (par1World.isBlockNormalCube(par2, par3, par4 - 1))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 + 1, par4 - 1);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 - 1, par4 - 1);
}
if (par1World.isBlockNormalCube(par2, par3, par4 + 1))
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 + 1, par4 + 1);
}
else
{
this.notifyWireNeighborsOfNeighborChange(par1World, par2, par3 - 1, par4 + 1);
}
}
}
/**
* Returns the current strength at the specified block if it is greater than the passed value, or the passed value
* otherwise. Signature: (world, x, y, z, strength)
*/
private int getMaxCurrentStrength(World par1World, int par2, int par3, int par4, int par5)
{
if (par1World.getBlockId(par2, par3, par4) != this.blockID)
{
return par5;
}
else
{
int i1 = par1World.getBlockMetadata(par2, par3, par4);
return i1 > par5 ? i1 : par5;
}
}
/**
* Lets the block know when one of its neighbor changes. Doesn't know which neighbor changed (coordinates passed are
* their own) Args: x, y, z, neighbor blockID
*/
public void onNeighborBlockChange(World par1World, int par2, int par3, int par4, int par5)
{
if (!par1World.isRemote)
{
boolean flag = this.canPlaceBlockAt(par1World, par2, par3, par4);
if (flag)
{
this.updateAndPropagateCurrentStrength(par1World, par2, par3, par4);
}
else
{
this.dropBlockAsItem(par1World, par2, par3, par4, 0, 0);
par1World.setBlockToAir(par2, par3, par4);
}
super.onNeighborBlockChange(par1World, par2, par3, par4, par5);
}
}
/**
* Returns the ID of the items to drop on destruction.
*/
public int idDropped(int par1, Random par2Random, int par3)
{
return Item.redstone.itemID;
}
/**
* Returns true if the block is emitting direct/strong redstone power on the specified side. Args: World, X, Y, Z,
* side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
*/
public int isProvidingStrongPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
return !this.wiresProvidePower ? 0 : this.isProvidingWeakPower(par1IBlockAccess, par2, par3, par4, par5);
}
/**
* Returns true if the block is emitting indirect/weak redstone power on the specified side. If isBlockNormalCube
* returns true, standard redstone propagation rules will apply instead and this will not be called. Args: World, X,
* Y, Z, side. Note that the side is reversed - eg it is 1 (up) when checking the bottom of the block.
*/
public int isProvidingWeakPower(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
if (!this.wiresProvidePower)
{
return 0;
}
else
{
int i1 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
if (i1 == 0)
{
return 0;
}
else if (par5 == 1)
{
return i1;
}
else
{
boolean flag = isPoweredOrRepeater(par1IBlockAccess, par2 - 1, par3, par4, 1) || !par1IBlockAccess.isBlockNormalCube(par2 - 1, par3, par4) && isPoweredOrRepeater(par1IBlockAccess, par2 - 1, par3 - 1, par4, -1);
boolean flag1 = isPoweredOrRepeater(par1IBlockAccess, par2 + 1, par3, par4, 3) || !par1IBlockAccess.isBlockNormalCube(par2 + 1, par3, par4) && isPoweredOrRepeater(par1IBlockAccess, par2 + 1, par3 - 1, par4, -1);
boolean flag2 = isPoweredOrRepeater(par1IBlockAccess, par2, par3, par4 - 1, 2) || !par1IBlockAccess.isBlockNormalCube(par2, par3, par4 - 1) && isPoweredOrRepeater(par1IBlockAccess, par2, par3 - 1, par4 - 1, -1);
boolean flag3 = isPoweredOrRepeater(par1IBlockAccess, par2, par3, par4 + 1, 0) || !par1IBlockAccess.isBlockNormalCube(par2, par3, par4 + 1) && isPoweredOrRepeater(par1IBlockAccess, par2, par3 - 1, par4 + 1, -1);
if (!par1IBlockAccess.isBlockNormalCube(par2, par3 + 1, par4))
{
if (par1IBlockAccess.isBlockNormalCube(par2 - 1, par3, par4) && isPoweredOrRepeater(par1IBlockAccess, par2 - 1, par3 + 1, par4, -1))
{
flag = true;
}
if (par1IBlockAccess.isBlockNormalCube(par2 + 1, par3, par4) && isPoweredOrRepeater(par1IBlockAccess, par2 + 1, par3 + 1, par4, -1))
{
flag1 = true;
}
if (par1IBlockAccess.isBlockNormalCube(par2, par3, par4 - 1) && isPoweredOrRepeater(par1IBlockAccess, par2, par3 + 1, par4 - 1, -1))
{
flag2 = true;
}
if (par1IBlockAccess.isBlockNormalCube(par2, par3, par4 + 1) && isPoweredOrRepeater(par1IBlockAccess, par2, par3 + 1, par4 + 1, -1))
{
flag3 = true;
}
}
return !flag2 && !flag1 && !flag && !flag3 && par5 >= 2 && par5 <= 5 ? i1 : (par5 == 2 && flag2 && !flag && !flag1 ? i1 : (par5 == 3 && flag3 && !flag && !flag1 ? i1 : (par5 == 4 && flag && !flag2 && !flag3 ? i1 : (par5 == 5 && flag1 && !flag2 && !flag3 ? i1 : 0))));
}
}
}
/**
* Can this block provide power. Only wire currently seems to have this change based on its state.
*/
public boolean canProvidePower()
{
return this.wiresProvidePower;
}
/**
* Returns true if redstone wire can connect to the specified block. Params: World, X, Y, Z, side (not a normal
* notch-side, this can be 0, 1, 2, 3 or -1)
*/
public static boolean isPowerProviderOrWire(IBlockAccess par0IBlockAccess, int par1, int par2, int par3, int par4)
{
int i1 = par0IBlockAccess.getBlockId(par1, par2, par3);
if (i1 == Block.redstoneWire.blockID)
{
return true;
}
else if (i1 == 0)
{
return false;
}
else if (!Block.redstoneRepeaterIdle.func_94487_f(i1))
{
return (Block.blocksList[i1] != null && Block.blocksList[i1].canConnectRedstone(par0IBlockAccess, par1, par2, par3, par4));
}
else
{
int j1 = par0IBlockAccess.getBlockMetadata(par1, par2, par3);
return par4 == (j1 & 3) || par4 == Direction.rotateOpposite[j1 & 3];
}
}
@SideOnly(Side.CLIENT)
/**
* A randomly called display update to be able to add particles or other items for display
*/
public void randomDisplayTick(World par1World, int par2, int par3, int par4, Random par5Random)
{
int l = par1World.getBlockMetadata(par2, par3, par4);
if (l > 0)
{
double d0 = (double)par2 + 0.5D + ((double)par5Random.nextFloat() - 0.5D) * 0.2D;
double d1 = (double)((float)par3 + 0.0625F);
double d2 = (double)par4 + 0.5D + ((double)par5Random.nextFloat() - 0.5D) * 0.2D;
float f = (float)l / 15.0F;
float f1 = f * 0.6F + 0.4F;
if (l == 0)
{
f1 = 0.0F;
}
float f2 = f * f * 0.7F - 0.5F;
float f3 = f * f * 0.6F - 0.7F;
if (f2 < 0.0F)
{
f2 = 0.0F;
}
if (f3 < 0.0F)
{
f3 = 0.0F;
}
par1World.spawnParticle("reddust", d0, d1, d2, (double)f1, (double)f2, (double)f3);
}
}
/**
* Returns true if the block coordinate passed can provide power, or is a redstone wire, or if its a repeater that
* is powered.
*/
public static boolean isPoweredOrRepeater(IBlockAccess par0IBlockAccess, int par1, int par2, int par3, int par4)
{
if (isPowerProviderOrWire(par0IBlockAccess, par1, par2, par3, par4))
{
return true;
}
else
{
int i1 = par0IBlockAccess.getBlockId(par1, par2, par3);
if (i1 == Block.redstoneRepeaterActive.blockID)
{
int j1 = par0IBlockAccess.getBlockMetadata(par1, par2, par3);
return par4 == (j1 & 3);
}
else
{
return false;
}
}
}
@SideOnly(Side.CLIENT)
/**
* only called by clickMiddleMouseButton , and passed to inventory.setCurrentItem (along with isCreative)
*/
public int idPicked(World par1World, int par2, int par3, int par4)
{
return Item.redstone.itemID;
}
@SideOnly(Side.CLIENT)
/**
* When this method is called, your block should register all the icons it needs with the given IconRegister. This
* is the only chance you get to register icons.
*/
public void registerIcons(IconRegister par1IconRegister)
{
this.field_94413_c = par1IconRegister.registerIcon("redstoneDust_cross");
this.field_94410_cO = par1IconRegister.registerIcon("redstoneDust_line");
this.field_94411_cP = par1IconRegister.registerIcon("redstoneDust_cross_overlay");
this.field_94412_cQ = par1IconRegister.registerIcon("redstoneDust_line_overlay");
this.blockIcon = this.field_94413_c;
}
@SideOnly(Side.CLIENT)
public static Icon func_94409_b(String par0Str)
{
return par0Str == "redstoneDust_cross" ? Block.redstoneWire.field_94413_c : (par0Str == "redstoneDust_line" ? Block.redstoneWire.field_94410_cO : (par0Str == "redstoneDust_cross_overlay" ? Block.redstoneWire.field_94411_cP : (par0Str == "redstoneDust_line_overlay" ? Block.redstoneWire.field_94412_cQ : null)));
}
}