package buildcraft.robotics.boards;
import java.util.ArrayList;
import net.minecraft.block.Block;
import net.minecraft.item.ItemBlock;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.world.World;
import buildcraft.api.boards.RedstoneBoardRobot;
import buildcraft.api.core.BlockIndex;
import buildcraft.api.robots.AIRobot;
import buildcraft.api.robots.EntityRobotBase;
import buildcraft.api.robots.ResourceIdBlock;
import buildcraft.api.statements.IStatementParameter;
import buildcraft.api.statements.StatementParameterItemStack;
import buildcraft.api.statements.StatementSlot;
import buildcraft.core.lib.utils.IBlockFilter;
import buildcraft.robotics.ai.AIRobotGotoSleep;
import buildcraft.robotics.ai.AIRobotSearchAndGotoBlock;
import buildcraft.robotics.statements.ActionRobotFilter;
public abstract class BoardRobotGenericSearchBlock extends RedstoneBoardRobot {
private BlockIndex blockFound;
private ArrayList<Block> blockFilter = new ArrayList<Block>();
private ArrayList<Integer> metaFilter = new ArrayList<Integer>();
public BoardRobotGenericSearchBlock(EntityRobotBase iRobot) {
super(iRobot);
}
/**
* This function has to be derived in a thread safe manner, as it may be
* called from parallel jobs. In particular, world should not be directly
* used, only through WorldProperty class and subclasses.
*/
public abstract boolean isExpectedBlock(World world, int x, int y, int z);
@Override
public void update() {
updateFilter();
startDelegateAI(new AIRobotSearchAndGotoBlock(robot, false, new IBlockFilter() {
@Override
public boolean matches(World world, int x, int y, int z) {
if (isExpectedBlock(world, x, y, z)
&& !robot.getRegistry().isTaken(new ResourceIdBlock(x, y, z))) {
return matchesGateFilter(world, x, y, z);
} else {
return false;
}
}
}));
}
@Override
public void delegateAIEnded(AIRobot ai) {
if (ai instanceof AIRobotSearchAndGotoBlock) {
if (ai.success()) {
blockFound = ((AIRobotSearchAndGotoBlock) ai).getBlockFound();
} else {
startDelegateAI(new AIRobotGotoSleep(robot));
}
}
}
@Override
public void end() {
releaseBlockFound(true);
}
protected BlockIndex blockFound() {
return blockFound;
}
protected void releaseBlockFound(boolean success) {
if (blockFound != null) {
// TODO: if !ai.success() -> can't break block, blacklist it
robot.getRegistry().release(new ResourceIdBlock(blockFound));
blockFound = null;
}
}
public final void updateFilter() {
blockFilter.clear();
metaFilter.clear();
for (StatementSlot slot : robot.getLinkedStation().getActiveActions()) {
if (slot.statement instanceof ActionRobotFilter) {
for (IStatementParameter p : slot.parameters) {
if (p != null && p instanceof StatementParameterItemStack) {
StatementParameterItemStack param = (StatementParameterItemStack) p;
ItemStack stack = param.getItemStack();
if (stack != null && stack.getItem() instanceof ItemBlock) {
blockFilter.add(((ItemBlock) stack.getItem()).field_150939_a);
metaFilter.add(stack.getItemDamage());
}
}
}
}
}
}
protected boolean matchesGateFilter(World world, int x, int y, int z) {
if (blockFilter.size() == 0) {
return true;
}
Block block;
int meta;
synchronized (world) {
block = world.getBlock(x, y, z);
meta = world.getBlockMetadata(x, y, z);
}
for (int i = 0; i < blockFilter.size(); ++i) {
if (blockFilter.get(i) == block && metaFilter.get(i) == meta) {
return true;
}
}
return false;
}
@Override
public void writeSelfToNBT(NBTTagCompound nbt) {
super.writeSelfToNBT(nbt);
if (blockFound != null) {
NBTTagCompound sub = new NBTTagCompound();
blockFound.writeTo(sub);
nbt.setTag("indexStored", sub);
}
}
@Override
public void loadSelfFromNBT(NBTTagCompound nbt) {
super.loadSelfFromNBT(nbt);
if (nbt.hasKey("indexStored")) {
blockFound = new BlockIndex(nbt.getCompoundTag("indexStored"));
}
}
}