package net.minecraft.block;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import java.util.Random;
import net.minecraft.block.material.Material;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.entity.EntityLiving;
import net.minecraft.item.ItemStack;
import net.minecraft.util.Direction;
import net.minecraft.util.Icon;
import net.minecraft.util.MathHelper;
import net.minecraft.world.IBlockAccess;
import net.minecraft.world.World;
public abstract class BlockRedstoneLogic extends BlockDirectional
{
/** Tells whether the repeater is powered or not */
protected final boolean isRepeaterPowered;
protected BlockRedstoneLogic(int par1, boolean par2)
{
super(par1, Material.circuits);
this.isRepeaterPowered = par2;
this.setBlockBounds(0.0F, 0.0F, 0.0F, 1.0F, 0.125F, 1.0F);
}
/**
* If this block doesn't render as an ordinary block it will return False (examples: signs, buttons, stairs, etc)
*/
public boolean renderAsNormalBlock()
{
return false;
}
/**
* 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) ? false : super.canPlaceBlockAt(par1World, par2, par3, par4);
}
/**
* Can this block stay at this position. Similar to canPlaceBlockAt except gets checked often with plants.
*/
public boolean canBlockStay(World par1World, int par2, int par3, int par4)
{
return !par1World.doesBlockHaveSolidTopSurface(par2, par3 - 1, par4) ? false : super.canBlockStay(par1World, par2, par3, par4);
}
/**
* Ticks the block if it's been scheduled
*/
public void updateTick(World par1World, int par2, int par3, int par4, Random par5Random)
{
int l = par1World.getBlockMetadata(par2, par3, par4);
if (!this.func_94476_e(par1World, par2, par3, par4, l))
{
boolean flag = this.func_94478_d(par1World, par2, par3, par4, l);
if (this.isRepeaterPowered && !flag)
{
par1World.setBlock(par2, par3, par4, this.func_94484_i().blockID, l, 2);
}
else if (!this.isRepeaterPowered)
{
par1World.setBlock(par2, par3, par4, this.func_94485_e().blockID, l, 2);
if (!flag)
{
par1World.func_82740_a(par2, par3, par4, this.func_94485_e().blockID, this.func_94486_g(l), -1);
}
}
}
}
@SideOnly(Side.CLIENT)
/**
* From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
*/
public Icon getIcon(int par1, int par2)
{
return par1 == 0 ? (this.isRepeaterPowered ? Block.torchRedstoneActive.getBlockTextureFromSide(par1) : Block.torchRedstoneIdle.getBlockTextureFromSide(par1)) : (par1 == 1 ? this.blockIcon : Block.stoneDoubleSlab.getBlockTextureFromSide(1));
}
@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.blockIcon = par1IconRegister.registerIcon(this.isRepeaterPowered ? "repeater_lit" : "repeater");
}
@SideOnly(Side.CLIENT)
/**
* Returns true if the given side of this block type should be rendered, if the adjacent block is at the given
* coordinates. Args: blockAccess, x, y, z, side
*/
public boolean shouldSideBeRendered(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
return par5 != 0 && par5 != 1;
}
/**
* The type of render function that is called for this block
*/
public int getRenderType()
{
return 36;
}
protected boolean func_96470_c(int par1)
{
return this.isRepeaterPowered;
}
/**
* 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.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)
{
int i1 = par1IBlockAccess.getBlockMetadata(par2, par3, par4);
if (!this.func_96470_c(i1))
{
return 0;
}
else
{
int j1 = getDirection(i1);
return j1 == 0 && par5 == 3 ? this.func_94480_d(par1IBlockAccess, par2, par3, par4, i1) : (j1 == 1 && par5 == 4 ? this.func_94480_d(par1IBlockAccess, par2, par3, par4, i1) : (j1 == 2 && par5 == 2 ? this.func_94480_d(par1IBlockAccess, par2, par3, par4, i1) : (j1 == 3 && par5 == 5 ? this.func_94480_d(par1IBlockAccess, par2, par3, par4, i1) : 0)));
}
}
/**
* 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 (!this.canBlockStay(par1World, par2, par3, par4))
{
this.dropBlockAsItem(par1World, par2, par3, par4, par1World.getBlockMetadata(par2, par3, par4), 0);
par1World.setBlockToAir(par2, par3, par4);
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);
}
else
{
this.func_94479_f(par1World, par2, par3, par4, par5);
}
}
protected void func_94479_f(World par1World, int par2, int par3, int par4, int par5)
{
int i1 = par1World.getBlockMetadata(par2, par3, par4);
if (!this.func_94476_e(par1World, par2, par3, par4, i1))
{
boolean flag = this.func_94478_d(par1World, par2, par3, par4, i1);
if ((this.isRepeaterPowered && !flag || !this.isRepeaterPowered && flag) && !par1World.isBlockTickScheduled(par2, par3, par4, this.blockID))
{
byte b0 = -1;
if (this.func_83011_d(par1World, par2, par3, par4, i1))
{
b0 = -3;
}
else if (this.isRepeaterPowered)
{
b0 = -2;
}
par1World.func_82740_a(par2, par3, par4, this.blockID, this.func_94481_j_(i1), b0);
}
}
}
public boolean func_94476_e(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
return false;
}
protected boolean func_94478_d(World par1World, int par2, int par3, int par4, int par5)
{
return this.getInputStrength(par1World, par2, par3, par4, par5) > 0;
}
/**
* Returns the signal strength at one input of the block. Args: world, X, Y, Z, side
*/
protected int getInputStrength(World par1World, int par2, int par3, int par4, int par5)
{
int i1 = getDirection(par5);
int j1 = par2 + Direction.offsetX[i1];
int k1 = par4 + Direction.offsetZ[i1];
int l1 = par1World.getIndirectPowerLevelTo(j1, par3, k1, Direction.directionToFacing[i1]);
return l1 >= 15 ? l1 : Math.max(l1, par1World.getBlockId(j1, par3, k1) == Block.redstoneWire.blockID ? par1World.getBlockMetadata(j1, par3, k1) : 0);
}
protected int func_94482_f(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
int i1 = getDirection(par5);
switch (i1)
{
case 0:
case 2:
return Math.max(this.func_94488_g(par1IBlockAccess, par2 - 1, par3, par4, 4), this.func_94488_g(par1IBlockAccess, par2 + 1, par3, par4, 5));
case 1:
case 3:
return Math.max(this.func_94488_g(par1IBlockAccess, par2, par3, par4 + 1, 3), this.func_94488_g(par1IBlockAccess, par2, par3, par4 - 1, 2));
default:
return 0;
}
}
protected int func_94488_g(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
int i1 = par1IBlockAccess.getBlockId(par2, par3, par4);
return this.func_94477_d(i1) ? (i1 == Block.redstoneWire.blockID ? par1IBlockAccess.getBlockMetadata(par2, par3, par4) : par1IBlockAccess.isBlockProvidingPowerTo(par2, par3, par4, par5)) : 0;
}
/**
* Can this block provide power. Only wire currently seems to have this change based on its state.
*/
public boolean canProvidePower()
{
return true;
}
/**
* Called when the block is placed in the world.
*/
public void onBlockPlacedBy(World par1World, int par2, int par3, int par4, EntityLiving par5EntityLiving, ItemStack par6ItemStack)
{
int l = ((MathHelper.floor_double((double)(par5EntityLiving.rotationYaw * 4.0F / 360.0F) + 0.5D) & 3) + 2) % 4;
par1World.setBlockMetadataWithNotify(par2, par3, par4, l, 3);
boolean flag = this.func_94478_d(par1World, par2, par3, par4, l);
if (flag)
{
par1World.scheduleBlockUpdate(par2, par3, par4, this.blockID, 1);
}
}
/**
* 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)
{
this.func_94483_i_(par1World, par2, par3, par4);
}
protected void func_94483_i_(World par1World, int par2, int par3, int par4)
{
int l = getDirection(par1World.getBlockMetadata(par2, par3, par4));
if (l == 1)
{
par1World.notifyBlockOfNeighborChange(par2 + 1, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2 + 1, par3, par4, this.blockID, 4);
}
if (l == 3)
{
par1World.notifyBlockOfNeighborChange(par2 - 1, par3, par4, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2 - 1, par3, par4, this.blockID, 5);
}
if (l == 2)
{
par1World.notifyBlockOfNeighborChange(par2, par3, par4 + 1, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3, par4 + 1, this.blockID, 2);
}
if (l == 0)
{
par1World.notifyBlockOfNeighborChange(par2, par3, par4 - 1, this.blockID);
par1World.notifyBlocksOfNeighborChange(par2, par3, par4 - 1, this.blockID, 3);
}
}
/**
* Called right before the block is destroyed by a player. Args: world, x, y, z, metaData
*/
public void onBlockDestroyedByPlayer(World par1World, int par2, int par3, int par4, int par5)
{
if (this.isRepeaterPowered)
{
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);
}
super.onBlockDestroyedByPlayer(par1World, par2, par3, par4, par5);
}
/**
* 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;
}
protected boolean func_94477_d(int par1)
{
Block block = Block.blocksList[par1];
return block != null && block.canProvidePower();
}
protected int func_94480_d(IBlockAccess par1IBlockAccess, int par2, int par3, int par4, int par5)
{
return 15;
}
public static boolean isRedstoneRepeaterBlockID(int par0)
{
return Block.redstoneRepeaterIdle.func_94487_f(par0) || Block.redstoneComparatorIdle.func_94487_f(par0);
}
public boolean func_94487_f(int par1)
{
return par1 == this.func_94485_e().blockID || par1 == this.func_94484_i().blockID;
}
public boolean func_83011_d(World par1World, int par2, int par3, int par4, int par5)
{
int i1 = getDirection(par5);
if (isRedstoneRepeaterBlockID(par1World.getBlockId(par2 - Direction.offsetX[i1], par3, par4 - Direction.offsetZ[i1])))
{
int j1 = par1World.getBlockMetadata(par2 - Direction.offsetX[i1], par3, par4 - Direction.offsetZ[i1]);
int k1 = getDirection(j1);
return k1 != i1;
}
else
{
return false;
}
}
protected int func_94486_g(int par1)
{
return this.func_94481_j_(par1);
}
protected abstract int func_94481_j_(int i);
protected abstract BlockRedstoneLogic func_94485_e();
protected abstract BlockRedstoneLogic func_94484_i();
/**
* Returns true if the given block ID is equivalent to this one. Example: redstoneTorchOn matches itself and
* redstoneTorchOff, and vice versa. Most blocks only match themselves.
*/
public boolean isAssociatedBlockID(int par1)
{
return this.func_94487_f(par1);
}
}