make the request items action able to request more than one item at a time

common/buildcraft/BuildCraftCore.java

@@ -148,6 +148,7 @@ import buildcraft.core.statements.ActionRedstoneOutput;
 import buildcraft.core.statements.DefaultActionProvider;
 import buildcraft.core.statements.DefaultTriggerProvider;
 import buildcraft.core.statements.StatementParameterDirection;
+import buildcraft.core.statements.StatementParameterItemStackExact;
 import buildcraft.core.statements.StatementParameterRedstoneGateSideOnly;
 import buildcraft.core.statements.TriggerEnergy;
 import buildcraft.core.statements.TriggerFluidContainer;
@@ -396,6 +397,7 @@ public class BuildCraftCore extends BuildCraftMod {
 		StatementManager.registerParameterClass("buildcraft:stackAction", StatementParameterItemStack.class);
 				
 		StatementManager.registerParameterClass(StatementParameterItemStack.class);
+		StatementManager.registerParameterClass(StatementParameterItemStackExact.class);
 		StatementManager.registerParameterClass(StatementParameterDirection.class);
 		StatementManager.registerParameterClass(StatementParameterRedstoneGateSideOnly.class);
 		StatementManager.registerTriggerProvider(new DefaultTriggerProvider());

common/buildcraft/BuildCraftRobotics.java

@@ -53,6 +53,7 @@ import buildcraft.core.Version;
 import buildcraft.core.config.ConfigManager;
 import buildcraft.core.network.EntityIds;
 import buildcraft.core.proxy.CoreProxy;
+import buildcraft.core.statements.StatementParameterItemStackExact;
 import buildcraft.robotics.BlockRequester;
 import buildcraft.robotics.BlockZonePlan;
 import buildcraft.robotics.BoardProgrammingRecipe;

common/buildcraft/core/statements/StatementParameterItemStackExact.java

@@ -0,0 +1,118 @@
+package buildcraft.core.statements;
+
+import net.minecraft.client.renderer.texture.IIconRegister;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.util.IIcon;
+
+import buildcraft.api.statements.IStatement;
+import buildcraft.api.statements.IStatementContainer;
+import buildcraft.api.statements.IStatementParameter;
+import buildcraft.api.statements.StatementMouseClick;
+
+public class StatementParameterItemStackExact implements IStatementParameter {
+
+	protected ItemStack stack;
+
+	@Override
+	public IIcon getIcon() {
+		return null;
+	}
+
+	@Override
+	public ItemStack getItemStack() {
+		return stack;
+	}
+
+	@Override
+	public void onClick(IStatementContainer source, IStatement stmt, ItemStack stack, StatementMouseClick mouse) {
+		if (stack != null) {
+			if (areItemsEqual(this.stack, stack)) {
+				if (mouse.getButton() == 0) {
+					this.stack.stackSize += (mouse.isShift()) ? 16 : 1;
+					if (this.stack.stackSize > 64) {
+						this.stack.stackSize = 64;
+					}
+				} else {
+					this.stack.stackSize -= (mouse.isShift()) ? 16 : 1;
+					if (this.stack.stackSize < 0) {
+						this.stack.stackSize = 0;
+					}
+				}
+			} else {
+				this.stack = stack.copy();
+			}
+		} else {
+			if (this.stack != null) {
+				if (mouse.getButton() == 0) {
+					this.stack.stackSize += (mouse.isShift()) ? 16 : 1;
+					if (this.stack.stackSize > 64) {
+						this.stack.stackSize = 64;
+					}
+				} else {
+					this.stack.stackSize -= (mouse.isShift()) ? 16 : 1;
+					if (this.stack.stackSize < 0) {
+						this.stack = null;
+					}
+				}
+			}
+		}
+	}
+
+	@Override
+	public void writeToNBT(NBTTagCompound compound) {
+		if (stack != null) {
+			NBTTagCompound tagCompound = new NBTTagCompound();
+			stack.writeToNBT(tagCompound);
+			compound.setTag("stack", tagCompound);
+		}
+	}
+
+	@Override
+	public void readFromNBT(NBTTagCompound compound) {
+		stack = ItemStack.loadItemStackFromNBT(compound.getCompoundTag("stack"));
+	}
+
+	@Override
+	public boolean equals(Object object) {
+		if (object instanceof StatementParameterItemStackExact) {
+			StatementParameterItemStackExact param = (StatementParameterItemStackExact) object;
+
+			return areItemsEqual(stack, param.stack);
+		} else {
+			return false;
+		}
+	}
+
+	private boolean areItemsEqual(ItemStack stack1, ItemStack stack2) {
+		if (stack1 != null) {
+			return stack1.isItemEqual(stack2) && ItemStack.areItemStackTagsEqual(stack1, stack2);
+		} else {
+			return stack2 == null;
+		}
+	}
+
+	@Override
+	public String getDescription() {
+		if (stack != null) {
+			return stack.getDisplayName();
+		} else {
+			return "";
+		}
+	}
+
+	@Override
+	public String getUniqueTag() {
+		return "buildcraft:stackExact";
+	}
+
+	@Override
+	public void registerIcons(IIconRegister iconRegister) {
+
+	}
+
+	@Override
+	public IStatementParameter rotateLeft() {
+		return this;
+	}
+}

common/buildcraft/robotics/statements/ActionStationRequestItems.java

@@ -13,6 +13,7 @@ import net.minecraft.client.renderer.texture.IIconRegister;
 import buildcraft.api.statements.IStatementParameter;
 import buildcraft.api.statements.StatementParameterItemStack;
 import buildcraft.core.lib.utils.StringUtils;
+import buildcraft.core.statements.StatementParameterItemStackExact;
 
 public class ActionStationRequestItems extends ActionStationInputItems {
 
@@ -42,6 +43,6 @@ public class ActionStationRequestItems extends ActionStationInputItems {
 
 	@Override
 	public IStatementParameter createParameter(int index) {
-		return new StatementParameterItemStack();
+		return new StatementParameterItemStackExact();
 	}
 }