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Add some examples to inventory methods

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Closes #761. It's not perfect, but it's a little better. Maybe??
This commit is contained in:
Jonathan Coates 2021-05-04 19:23:35 +01:00
parent bc8e090873
commit fb9590467d
2 changed files with 33 additions and 1 deletions
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32
src/main/java/dan200/computercraft/shared/peripheral/generic/methods/InventoryMethods.java
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@ -63,7 +63,8 @@ public class InventoryMethods implements GenericSource
*
* Each item in the inventory is represented by a table containing some basic information, much like
* {@link dan200.computercraft.shared.turtle.apis.TurtleAPI#getItemDetail} includes. More information can be fetched
* with {@link #getItemDetail}.
* with {@link #getItemDetail}. The table contains the item `name`, the `count` and an a (potentially nil) hash of
* the item's `nbt.` This NBT data doesn't contain anything useful, but allows you to distinguish identical items.
*
* The returned table is sparse, and so empty slots will be `nil` - it is recommended to loop over using `pairs`
* rather than `ipairs`.
@ -71,6 +72,14 @@ public class InventoryMethods implements GenericSource
* @param inventory The current inventory.
* @return All items in this inventory.
* @cc.treturn { (table|nil)... } All items in this inventory.
* @cc.usage Find an adjacent chest and print all items in it.
*
* <pre>{@code
* local chest = peripheral.find("minecraft:chest")
* for slot, item in pairs(chest.list()) do
* print(("%d x %s in slot %d"):format(item.count, item.name, slot))
* end
* }</pre>
*/
@LuaFunction( mainThread = true )
public static Map<Integer, Map<String, ?>> list( IItemHandler inventory )
@ -89,11 +98,32 @@ public class InventoryMethods implements GenericSource
/**
* Get detailed information about an item.
*
* The returned information contains the same information as each item in
* {@link #list}, as well as additional details like the display name
* (`displayName`) and item durability (`damage`, `maxDamage`, `durability`).
*
* Some items include more information (such as enchantments) - it is
* recommended to print it out using @{textutils.serialize} or in the Lua
* REPL, to explore what is available.
*
* @param inventory The current inventory.
* @param slot The slot to get information about.
* @return Information about the item in this slot, or {@code nil} if not present.
* @throws LuaException If the slot is out of range.
* @cc.treturn table Information about the item in this slot, or {@code nil} if not present.
* @cc.usage Print some information about the first in a chest.
*
* <pre>{@code
* local chest = peripheral.find("minecraft:chest")
* local item = chest.getItemDetail(1)
* if not item then print("No item") return end
*
* print(("%s (%s)"):format(item.displayName, item.name))
* print(("Count: %d/%d"):format(item.count, item.maxCount))
* if item.damage then
* print(("Damage: %d/%d"):format(item.damage, item.maxDamage))
* end
* }</pre>
*/
@Nullable
@LuaFunction( mainThread = true )

2
src/main/java/dan200/computercraft/shared/turtle/apis/TurtleAPI.java
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@ -16,6 +16,7 @@ import dan200.computercraft.core.apis.IAPIEnvironment;
import dan200.computercraft.core.asm.TaskCallback;
import dan200.computercraft.core.tracking.TrackingField;
import dan200.computercraft.shared.peripheral.generic.data.ItemData;
import dan200.computercraft.shared.peripheral.generic.methods.InventoryMethods;
import dan200.computercraft.shared.turtle.core.*;
import net.minecraft.item.ItemStack;
import net.minecraftforge.common.MinecraftForge;
@ -702,6 +703,7 @@ public class TurtleAPI implements ILuaAPI
* more information about the item at the cost of taking longer to run.
* @return The command result.
* @throws LuaException If the slot is out of range.
* @see InventoryMethods#getItemDetail Describes the information returned by a detailed query.
* @cc.treturn nil|table Information about the given slot, or {@code nil} if it is empty.
* @cc.usage Print the current slot, assuming it contains 13 dirt.
*