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SchematicBlock.java
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SchematicBlock.java
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/**
* Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
* http://www.mod-buildcraft.com
*
* The BuildCraft API is distributed under the terms of the MIT License.
* Please check the contents of the license, which should be located
* as "LICENSE.API" in the BuildCraft source code distribution.
*/
package buildcraft.api.blueprints;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.Set;
import net.minecraft.block.Block;
import net.minecraft.block.BlockFalling;
import net.minecraft.block.BlockLiquid;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagList;
import net.minecraftforge.common.util.Constants;
import net.minecraftforge.common.util.ForgeDirection;
import net.minecraftforge.fluids.BlockFluidBase;
import buildcraft.api.core.BlockIndex;
public class SchematicBlock extends SchematicBlockBase {
public static final BlockIndex[] RELATIVE_INDEXES = new BlockIndex[] {
new BlockIndex(0, -1, 0),
new BlockIndex(0, 1, 0),
new BlockIndex(0, 0, -1),
new BlockIndex(0, 0, 1),
new BlockIndex(-1, 0, 0),
new BlockIndex(1, 0, 0),
};
public Block block = null;
public int meta = 0;
public BuildingPermission defaultPermission = BuildingPermission.ALL;
/**
* This field contains requirements for a given block when stored in the
* blueprint. Modders can either rely on this list or compute their own int
* Schematic.
*/
public ItemStack [] storedRequirements = new ItemStack [0];
private boolean doNotUse = false;
@Override
public void getRequirementsForPlacement(IBuilderContext context, LinkedList<ItemStack> requirements) {
if (block != null) {
if (storedRequirements.length != 0) {
Collections.addAll(requirements, storedRequirements);
} else {
requirements.add(new ItemStack(block, 1, meta));
}
}
}
@Override
public boolean isAlreadyBuilt(IBuilderContext context, int x, int y, int z) {
return block == context.world().getBlock(x, y, z) && meta == context.world().getBlockMetadata(x, y, z);
}
@Override
public void placeInWorld(IBuilderContext context, int x, int y, int z, LinkedList<ItemStack> stacks) {
super.placeInWorld(context, x, y, z, stacks);
this.setBlockInWorld(context, x, y, z);
}
@Override
public void storeRequirements(IBuilderContext context, int x, int y, int z) {
super.storeRequirements(context, x, y, z);
if (block != null) {
ArrayList<ItemStack> req = block.getDrops(context.world(), x,
y, z, context.world().getBlockMetadata(x, y, z), 0);
if (req != null) {
storedRequirements = new ItemStack [req.size()];
req.toArray(storedRequirements);
}
}
}
@Override
public void writeSchematicToNBT(NBTTagCompound nbt, MappingRegistry registry) {
super.writeSchematicToNBT(nbt, registry);
writeBlockToNBT(nbt, registry);
writeRequirementsToNBT(nbt, registry);
}
@Override
public void readSchematicFromNBT(NBTTagCompound nbt, MappingRegistry registry) {
super.readSchematicFromNBT(nbt, registry);
readBlockFromNBT(nbt, registry);
if (!doNotUse()) {
readRequirementsFromNBT(nbt, registry);
}
}
/**
* Get a list of relative block coordinates which have to be built before
* this block can be placed.
*/
public Set<BlockIndex> getPrerequisiteBlocks(IBuilderContext context) {
Set<BlockIndex> indexes = new HashSet<BlockIndex>();
if (block instanceof BlockFalling) {
indexes.add(RELATIVE_INDEXES[ForgeDirection.DOWN.ordinal()]);
}
return indexes;
}
@Override
public BuildingStage getBuildStage() {
if (block instanceof BlockFluidBase || block instanceof BlockLiquid) {
return BuildingStage.EXPANDING;
} else {
return BuildingStage.STANDALONE;
}
}
@Override
public BuildingPermission getBuildingPermission() {
return defaultPermission;
}
// Utility functions
protected void setBlockInWorld(IBuilderContext context, int x, int y, int z) {
// Meta needs to be specified twice, depending on the block behavior
context.world().setBlock(x, y, z, block, meta, 3);
context.world().setBlockMetadataWithNotify(x, y, z, meta, 3);
}
public boolean doNotUse() {
return doNotUse;
}
protected void readBlockFromNBT(NBTTagCompound nbt, MappingRegistry registry) {
try {
block = registry.getBlockForId(nbt.getInteger("blockId"));
meta = nbt.getInteger("blockMeta");
} catch (MappingNotFoundException e) {
doNotUse = true;
}
}
protected void readRequirementsFromNBT(NBTTagCompound nbt, MappingRegistry registry) {
if (nbt.hasKey("rq")) {
NBTTagList rq = nbt.getTagList("rq", Constants.NBT.TAG_COMPOUND);
ArrayList<ItemStack> rqs = new ArrayList<ItemStack>();
for (int i = 0; i < rq.tagCount(); ++i) {
try {
NBTTagCompound sub = rq.getCompoundTagAt(i);
if (sub.getInteger("id") >= 0) {
registry.stackToWorld(sub);
rqs.add(ItemStack.loadItemStackFromNBT(sub));
} else {
defaultPermission = BuildingPermission.CREATIVE_ONLY;
}
} catch (MappingNotFoundException e) {
defaultPermission = BuildingPermission.CREATIVE_ONLY;
} catch (Throwable t) {
t.printStackTrace();
defaultPermission = BuildingPermission.CREATIVE_ONLY;
}
}
storedRequirements = rqs.toArray(new ItemStack[rqs.size()]);
} else {
storedRequirements = new ItemStack[0];
}
}
protected void writeBlockToNBT(NBTTagCompound nbt, MappingRegistry registry) {
nbt.setInteger("blockId", registry.getIdForBlock(block));
nbt.setInteger("blockMeta", meta);
}
protected void writeRequirementsToNBT(NBTTagCompound nbt, MappingRegistry registry) {
if (storedRequirements.length > 0) {
NBTTagList rq = new NBTTagList();
for (ItemStack stack : storedRequirements) {
NBTTagCompound sub = new NBTTagCompound();
stack.writeToNBT(sub);
registry.stackToRegistry(sub);
rq.appendTag(sub);
}
nbt.setTag("rq", rq);
}
}
}