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package darkknight.jewelrycraft.tileentity;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.network.INetworkManager;
import net.minecraft.network.packet.Packet;
import net.minecraft.network.packet.Packet132TileEntityData;
import net.minecraft.tileentity.TileEntity;
import net.minecraft.util.MathHelper;
import net.minecraft.world.EnumSkyBlock;
public class TileEntityBlockShadow extends TileEntity
{
public int metadata;
public TileEntityBlockShadow()
{
this.metadata = -1;
}
@Override
public void writeToNBT(NBTTagCompound nbt)
{
super.writeToNBT(nbt);
nbt.setInteger("metadata", metadata);
}
@Override
public void readFromNBT(NBTTagCompound nbt)
{
super.readFromNBT(nbt);
this.metadata = nbt.getInteger("metadata");
}
@Override
public void updateEntity()
{
super.updateEntity();
int blockLight, realLight;
int lightValue = worldObj.getSavedLightValue(EnumSkyBlock.Sky, xCoord, yCoord, zCoord) - worldObj.skylightSubtracted;
float sunPosAngle = worldObj.getCelestialAngleRadians(1.0F);
if (sunPosAngle < (float)Math.PI) sunPosAngle += (0.0F - sunPosAngle) * 0.2F;
else sunPosAngle += (((float)Math.PI * 2F) - sunPosAngle) * 0.2F;
lightValue = Math.round((float)lightValue * MathHelper.cos(sunPosAngle));
if (lightValue < 0) lightValue = 0;
if (lightValue > 15) lightValue = 15;
blockLight = worldObj.getChunkFromBlockCoords(xCoord, zCoord).getSavedLightValue(EnumSkyBlock.Block, xCoord & 15, yCoord, zCoord & 15);
realLight = worldObj.getChunkFromBlockCoords(xCoord, zCoord).getBlockLightValue(xCoord & 15, yCoord, zCoord & 15, 0);
if((blockLight == 0 && worldObj.canBlockSeeTheSky(xCoord, yCoord, zCoord)) || (lightValue >= blockLight)) metadata = 15 - lightValue;
else if(!worldObj.canBlockSeeTheSky(xCoord, yCoord, zCoord)) metadata = 15 - realLight;
else if(lightValue < blockLight) metadata = 15 - blockLight;
worldObj.setBlockMetadataWithNotify(xCoord, yCoord, zCoord, metadata, 2);
worldObj.notifyBlocksOfNeighborChange(xCoord, yCoord, zCoord, worldObj.getBlockId(xCoord, yCoord, zCoord));
}
@Override
public Packet getDescriptionPacket()
{
Packet132TileEntityData packet = (Packet132TileEntityData) super.getDescriptionPacket();
NBTTagCompound dataTag = packet != null ? packet.data : new NBTTagCompound();
writeToNBT(dataTag);
return new Packet132TileEntityData(xCoord, yCoord, zCoord, 1, dataTag);
}
@Override
public void onDataPacket(INetworkManager net, Packet132TileEntityData pkt)
{
super.onDataPacket(net, pkt);
NBTTagCompound tag = pkt != null ? pkt.data : new NBTTagCompound();
readFromNBT(tag);
}
}
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