robots now shutdown in stead of dropping as items

api/buildcraft/api/robots/EntityRobotBase.java

@@ -26,6 +26,7 @@ public abstract class EntityRobotBase extends EntityLiving implements IInventory
 
 	public static final int MAX_ENERGY = 100000;
 	public static final int SAFETY_ENERGY = MAX_ENERGY / 5;
+	public static final int SHUTDOWN_ENERGY = 0;
 	public static final long NULL_ROBOT_ID = Long.MAX_VALUE;
 
 	public EntityRobotBase(World par1World) {

common/buildcraft/BuildCraftRobotics.java

@@ -94,6 +94,7 @@ import buildcraft.robotics.ai.AIRobotSearchEntity;
 import buildcraft.robotics.ai.AIRobotSearchRandomGroundBlock;
 import buildcraft.robotics.ai.AIRobotSearchStackRequest;
 import buildcraft.robotics.ai.AIRobotSearchStation;
+import buildcraft.robotics.ai.AIRobotShutdown;
 import buildcraft.robotics.ai.AIRobotSleep;
 import buildcraft.robotics.ai.AIRobotStraightMoveTo;
 import buildcraft.robotics.ai.AIRobotUnload;
@@ -333,6 +334,7 @@ public class BuildCraftRobotics extends BuildCraftMod {
 		RobotManager.registerAIRobot(AIRobotSearchRandomGroundBlock.class, "aiRobotSearchRandomGroundBlock", "buildcraft.core.robots.AIRobotSearchRandomGroundBlock");
 		RobotManager.registerAIRobot(AIRobotSearchStackRequest.class, "aiRobotSearchStackRequest", "buildcraft.core.robots.AIRobotSearchStackRequest");
 		RobotManager.registerAIRobot(AIRobotSearchStation.class, "aiRobotSearchStation", "buildcraft.core.robots.AIRobotSearchStation");
+		RobotManager.registerAIRobot(AIRobotShutdown.class, "aiRobotShutdown");
 		RobotManager.registerAIRobot(AIRobotSleep.class, "aiRobotSleep", "buildcraft.core.robots.AIRobotSleep");
 		RobotManager.registerAIRobot(AIRobotStraightMoveTo.class, "aiRobotStraightMoveTo", "buildcraft.core.robots.AIRobotStraightMoveTo");
 		RobotManager.registerAIRobot(AIRobotUnload.class, "aiRobotUnload", "buildcraft.core.robots.AIRobotUnload");

common/buildcraft/robotics/EntityRobot.java

@@ -8,6 +8,7 @@
  */
 package buildcraft.robotics;
 
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 import java.util.WeakHashMap;
@@ -62,6 +63,7 @@ import buildcraft.core.lib.network.command.PacketCommand;
 import buildcraft.core.lib.utils.NBTUtils;
 import buildcraft.core.lib.utils.NetworkUtils;
 import buildcraft.robotics.ai.AIRobotMain;
+import buildcraft.robotics.ai.AIRobotShutdown;
 import buildcraft.robotics.ai.AIRobotSleep;
 import buildcraft.robotics.statements.ActionRobotWorkInArea;
 import buildcraft.transport.Pipe;
@@ -110,7 +112,7 @@ public class EntityRobot extends EntityRobotBase implements
 
 	private boolean firstUpdateDone = false;
 
-	private boolean isAsleepClient = false;
+	private boolean isActiveClient = false;
 
 	private long robotId = EntityRobotBase.NULL_ROBOT_ID;
 
@@ -188,7 +190,7 @@ public class EntityRobot extends EntityRobotBase implements
 		itemAngle1 = dataWatcher.getWatchableObjectFloat(17);
 		itemAngle2 = dataWatcher.getWatchableObjectFloat(18);
 		energySpendPerCycle = dataWatcher.getWatchableObjectInt(19);
-		isAsleepClient = dataWatcher.getWatchableObjectByte(20) == 1;
+		isActiveClient = dataWatcher.getWatchableObjectByte(20) == 1;
 		battery.setEnergy(dataWatcher.getWatchableObjectInt(21));
 	}
 
@@ -201,8 +203,12 @@ public class EntityRobot extends EntityRobotBase implements
 		dataWatcher.updateObject(18, Float.valueOf(itemAngle2));
 	}
 
-	public boolean isAsleep() {
+	public boolean isActive() {
-		return worldObj.isRemote ? isAsleepClient : mainAI.getActiveAI() instanceof AIRobotSleep;
+		if (worldObj.isRemote) {
+			return isActiveClient;
+		} else {
+			return mainAI.getActiveAI() instanceof AIRobotSleep || mainAI.getActiveAI() instanceof AIRobotShutdown;
+		}
 	}
 
 	protected void init() {
@@ -260,7 +266,7 @@ public class EntityRobot extends EntityRobotBase implements
 		if (!worldObj.isRemote) {
 			// The client-side sleep indicator should also display if the robot is charging.
 			// To not break gates and other things checking for sleep, this is done here.
-			dataWatcher.updateObject(20, Byte.valueOf((byte) ((isAsleep() && ticksCharging == 0) ? 1 : 0)));
+			dataWatcher.updateObject(20, Byte.valueOf((byte) ((isActive() && ticksCharging == 0) ? 1 : 0)));
 			dataWatcher.updateObject(21, getEnergy());
 
 			if (needsUpdate) {
@@ -285,32 +291,29 @@ public class EntityRobot extends EntityRobotBase implements
 
 		if (!worldObj.isRemote) {
 			if (linkedDockingStation == null) {
-				linkedDockingStation = RobotManager.registryProvider.getRegistry(worldObj).getStation(
+				if (linkedDockingStationIndex != null) {
-						linkedDockingStationIndex.x,
+					linkedDockingStation = getRegistry().getStation(linkedDockingStationIndex.x,
-						linkedDockingStationIndex.y,
+							linkedDockingStationIndex.y, linkedDockingStationIndex.z,
-						linkedDockingStationIndex.z,
 							linkedDockingStationSide);
+				}
 
 				if (linkedDockingStation == null
 						|| linkedDockingStation.robotTaking() != this) {
-					// Error at load time, the expected linked stations is not
+					if (!(mainAI.getDelegateAI() instanceof AIRobotShutdown)) {
-					// properly set, kill this robot.
+						mainAI.startDelegateAI(new AIRobotShutdown(this));
-
+					}
-					setDead();
-					return;
 				}
 			}
 
 			if (currentDockingStationIndex != null && currentDockingStation == null) {
-				currentDockingStation = (DockingStation)
+				currentDockingStation = getRegistry().getStation(
-						RobotManager.registryProvider.getRegistry(worldObj).getStation(
 						currentDockingStationIndex.x,
 						currentDockingStationIndex.y,
 						currentDockingStationIndex.z,
 						currentDockingStationSide);
 			}
 
-			if (linkedDockingStation != null &&
+			if (linkedDockingStation == null ||
 					((Pipe) linkedDockingStation.getPipe().getPipe()).isInitialized()) {
 				this.worldObj.theProfiler.startSection("bcRobotAIMainCycle");
 				mainAI.cycle();
@@ -320,10 +323,6 @@ public class EntityRobot extends EntityRobotBase implements
 					energySpendPerCycle = mainAI.getActiveAI().getEnergyCost();
 					dataWatcher.updateObject(19, energySpendPerCycle);
 				}
-
-				if (this.battery.getEnergyStored() <= 0 && !linkedToChargeStation()) {
-					setDead();
-				}
 			}
 		}
 
@@ -460,12 +459,14 @@ public class EntityRobot extends EntityRobotBase implements
     public void writeEntityToNBT(NBTTagCompound nbt) {
 		super.writeEntityToNBT(nbt);
 
+		if (linkedDockingStation != null) {
 			NBTTagCompound linkedStationNBT = new NBTTagCompound();
 			NBTTagCompound linkedStationIndexNBT = new NBTTagCompound();
 			linkedDockingStationIndex.writeTo(linkedStationIndexNBT);
 			linkedStationNBT.setTag("index", linkedStationIndexNBT);
 			linkedStationNBT.setByte("side", (byte) linkedDockingStationSide.ordinal());
 			nbt.setTag("linkedStation", linkedStationNBT);
+		}
 
 		if (currentDockingStationIndex != null) {
 			NBTTagCompound currentStationNBT = new NBTTagCompound();
@@ -526,9 +527,11 @@ public class EntityRobot extends EntityRobotBase implements
 	public void readEntityFromNBT(NBTTagCompound nbt) {
 		super.readEntityFromNBT(nbt);
 
+		if (nbt.hasKey("linkedStation")) {
 			NBTTagCompound linkedStationNBT = nbt.getCompoundTag("linkedStation");
 			linkedDockingStationIndex = new BlockIndex(linkedStationNBT.getCompoundTag("index"));
 			linkedDockingStationSide = ForgeDirection.values()[linkedStationNBT.getByte("side")];
+		}
 
 		if (nbt.hasKey("currentStation")) {
 			NBTTagCompound currentStationNBT = nbt.getCompoundTag("currentStation");
@@ -602,6 +605,8 @@ public class EntityRobot extends EntityRobotBase implements
 
 			currentDockingStationIndex = null;
 			currentDockingStationSide = null;
+
+			mainAI.abortDelegateAI();
 		}
 	}
 
@@ -611,16 +616,20 @@ public class EntityRobot extends EntityRobotBase implements
 	}
 
 	@Override
-	public void setMainStation(DockingStation iStation) {
+	public void setMainStation(DockingStation station) {
-		DockingStation station = iStation;
 
 		if (linkedDockingStation != null && linkedDockingStation != station) {
 			linkedDockingStation.unsafeRelease(this);
 		}
 
 		linkedDockingStation = station;
+		if (station != null) {
 			linkedDockingStationIndex = linkedDockingStation.index();
 			linkedDockingStationSide = linkedDockingStation.side();
+		} else {
+			linkedDockingStationIndex = null;
+			linkedDockingStationSide = ForgeDirection.UNKNOWN;
+		}
 	}
 
 	@Override
@@ -960,30 +969,40 @@ public class EntityRobot extends EntityRobotBase implements
 		return unreachableEntities.containsKey(entity);
 	}
 
-	@Override
+	private List<ItemStack> getDrops() {
-	public void setDead() {
+		List<ItemStack> drops = new ArrayList<ItemStack>();
+		ItemStack robotStack = new ItemStack(BuildCraftRobotics.robotItem);
+		NBTUtils.getItemData(robotStack).setTag("board", originalBoardNBT);
+		NBTUtils.getItemData(robotStack).setInteger("energy", battery.getEnergyStored());
+		drops.add(robotStack);
+		if (itemInUse != null) {
+			drops.add(itemInUse);
+		}
+		for (ItemStack element : inv) {
+			if (element != null) {
+				drops.add(element);
+			}
+		}
+		return drops;
+	}
+
+	private void convertToItems() {
 		if (!worldObj.isRemote && !isDead) {
 			if (mainAI != null) {
 				mainAI.abort();
 			}
-
+			List<ItemStack> drops = getDrops();
-			ItemStack robotStack = new ItemStack (BuildCraftRobotics.robotItem);
+			for (ItemStack stack : drops) {
-			NBTUtils.getItemData(robotStack).setTag("board", originalBoardNBT);
+				entityDropItem(stack, 0);
-			NBTUtils.getItemData(robotStack).setInteger("energy", battery.getEnergyStored());
-			entityDropItem(robotStack, 0);
-			if (itemInUse != null) {
-				entityDropItem(itemInUse, 0);
-			}
-			for (ItemStack element : inv) {
-				if (element != null) {
-					entityDropItem(element, 0);
 			}
 		}
 
 		getRegistry().killRobot(this);
 	}
 
-		super.setDead();
+	@Override
+	public void setDead() {
+		// prevent super.setDead() from getting called
 	}
 
 	@Override

common/buildcraft/robotics/RobotRegistry.java

@@ -22,6 +22,7 @@ import cpw.mods.fml.common.eventhandler.SubscribeEvent;
 import net.minecraftforge.common.util.Constants;
 import net.minecraftforge.common.util.ForgeDirection;
 import net.minecraftforge.event.world.ChunkEvent;
+import buildcraft.api.core.BCLog;
 import buildcraft.api.robots.DockingStation;
 import buildcraft.api.robots.EntityRobotBase;
 import buildcraft.api.robots.IRobotRegistry;
@@ -60,6 +61,9 @@ public class RobotRegistry extends WorldSavedData implements IRobotRegistry {
 		if (robot.getRobotId() == EntityRobotBase.NULL_ROBOT_ID) {
 			((EntityRobot) robot).setUniqueRobotId(getNextRobotId());
 		}
+		if (robotsLoaded.containsKey(robot.getRobotId())) {
+			BCLog.logger.warn("Robot with id %d was not unregistered properly", robot.getRobotId());
+		}
 
 		robotsLoaded.put(robot.getRobotId(), (EntityRobot) robot);
 	}
@@ -258,7 +262,11 @@ public class RobotRegistry extends WorldSavedData implements IRobotRegistry {
 
 		if (stations.containsKey(index)) {
 			if (station.robotTaking() != null) {
-				station.robotTaking().setDead();
+				if (!station.isMainStation()) {
+					station.robotTaking().undock();
+				} else {
+					station.robotTaking().setMainStation(null);
+				}
 			} else if (station.robotIdTaking() != EntityRobotBase.NULL_ROBOT_ID) {
 				stationsTakenByRobot.get(station.robotIdTaking()).remove(index);
 			}

common/buildcraft/robotics/ai/AIRobotMain.java

@@ -26,14 +26,18 @@ public class AIRobotMain extends AIRobot {
 
 	@Override
 	public void preempt(AIRobot ai) {
-		if (!(ai instanceof AIRobotRecharge)) {
+		if (robot.getEnergy() <= EntityRobotBase.SHUTDOWN_ENERGY) {
-			if (robot.getEnergy() < EntityRobotBase.SAFETY_ENERGY) {
+			if (!(ai instanceof AIRobotShutdown)) {
+				startDelegateAI(new AIRobotShutdown(robot));
+			}
+		} else if (robot.getEnergy() < EntityRobotBase.SAFETY_ENERGY) {
+			if (!(ai instanceof AIRobotRecharge) && !(ai instanceof AIRobotShutdown)) {
 				startDelegateAI(new AIRobotRecharge(robot));
+			}
 		} else if (overridingAI != null && ai != overridingAI) {
 			startDelegateAI(overridingAI);
 		}
 	}
-	}
 
 	@Override
 	public void update() {

common/buildcraft/robotics/ai/AIRobotShutdown.java

@@ -0,0 +1,69 @@
+/**
+ * Copyright (c) 2011-2015, SpaceToad and the BuildCraft Team
+ * http://www.mod-buildcraft.com
+ *
+ * BuildCraft is distributed under the terms of the Minecraft Mod Public
+ * License 1.0, or MMPL. Please check the contents of the license located in
+ * http://www.mod-buildcraft.com/MMPL-1.0.txt
+ */
+package buildcraft.robotics.ai;
+
+import java.util.List;
+import net.minecraft.util.AxisAlignedBB;
+import buildcraft.api.robots.AIRobot;
+import buildcraft.api.robots.EntityRobotBase;
+
+public class AIRobotShutdown extends AIRobot {
+
+	private int skip;
+	private double motionX;
+	private double motionZ;
+
+	public AIRobotShutdown(EntityRobotBase iRobot) {
+		super(iRobot);
+		skip = 0;
+		motionX = robot.motionX;
+		motionZ = robot.motionZ;
+	}
+
+	@Override
+	public void start() {
+		robot.undock();
+		robot.motionX = motionX;
+		robot.motionY = -0.075f;
+		robot.motionZ = motionZ;
+	}
+
+	@Override
+	public void update() {
+		if (skip == 0) {
+			List boxes = robot.worldObj.getCollidingBoundingBoxes(robot,
+					getRobotBox().addCoord(robot.motionX, -0.075f, robot.motionZ));
+			if (boxes.size() == 0) {
+				robot.motionY = -0.075f;
+			} else {
+				robot.motionY = 0f;
+				if (robot.motionX != 0 || robot.motionZ != 0) {
+					robot.motionX = 0f;
+					robot.motionZ = 0f;
+					skip = 0;
+				} else {
+					skip = 20;
+				}
+			}
+		} else {
+			skip--;
+		}
+
+	}
+
+	private AxisAlignedBB getRobotBox() {
+		return AxisAlignedBB.getBoundingBox(robot.posX - 0.25d, robot.posY - 0.25d,
+				robot.posZ - 0.25d, robot.posX + 0.25d, robot.posY + 0.25d, robot.posZ + 0.25d);
+	}
+
+	@Override
+	public int getEnergyCost() {
+		return 0;
+	}
+}

common/buildcraft/robotics/render/RenderRobot.java

@@ -149,7 +149,7 @@ public class RenderRobot extends Render implements IItemRenderer {
 		if (robot.getTexture() != null) {
 			renderManager.renderEngine.bindTexture(robot.getTexture());
 			float storagePercent = (float) robot.getBattery().getEnergyStored() / (float) robot.getBattery().getMaxEnergyStored();
-			doRenderRobot(1F / 16F, renderManager.renderEngine, storagePercent, robot.isAsleep());
+			doRenderRobot(1F / 16F, renderManager.renderEngine, storagePercent, robot.isActive());
 		}
 		
 		GL11.glPopMatrix();

common/buildcraft/robotics/statements/TriggerRobotSleep.java

@@ -43,7 +43,7 @@ public class TriggerRobotSleep extends BCStatement implements ITriggerInternal {
 			if (station.robotTaking() != null) {
 				EntityRobot robot = (EntityRobot) station.robotTaking();
 
-				if (robot.isAsleep()) {
+				if (robot.isActive()) {
 					return true;
 				}
 			}