net.minestom.server.utils.inventory.PlayerInventoryUtils Maven / Gradle / Ivy
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1.20.4 Lightweight Minecraft server
package net.minestom.server.utils.inventory;
public final class PlayerInventoryUtils {
public static final int OFFSET = 9;
public static final int CRAFT_RESULT = 36;
public static final int CRAFT_SLOT_1 = 37;
public static final int CRAFT_SLOT_2 = 38;
public static final int CRAFT_SLOT_3 = 39;
public static final int CRAFT_SLOT_4 = 40;
public static final int HELMET_SLOT = 41;
public static final int CHESTPLATE_SLOT = 42;
public static final int LEGGINGS_SLOT = 43;
public static final int BOOTS_SLOT = 44;
public static final int OFFHAND_SLOT = 45;
private PlayerInventoryUtils() {
}
/**
* Converts a packet slot to an internal one.
*
* @param slot the packet slot
* @param offset the slot count separating the up part of the inventory to the bottom part (armor/craft in PlayerInventory, inventory slots in others)
* the offset for the player inventory is {@link #OFFSET}
* @return a packet which can be use internally with Minestom
*/
public static int convertPlayerInventorySlot(int slot, int offset) {
return switch (slot) {
case 0 -> CRAFT_RESULT;
case 1 -> CRAFT_SLOT_1;
case 2 -> CRAFT_SLOT_2;
case 3 -> CRAFT_SLOT_3;
case 4 -> CRAFT_SLOT_4;
case 5 -> HELMET_SLOT;
case 6 -> CHESTPLATE_SLOT;
case 7 -> LEGGINGS_SLOT;
case 8 -> BOOTS_SLOT;
default -> convertSlot(slot, offset);
};
}
public static int convertSlot(int slot, int offset) {
final int rowSize = 9;
slot -= offset;
if (slot >= rowSize * 3 && slot < rowSize * 4) {
slot = slot % 9;
} else {
slot = slot + rowSize;
}
return slot;
}
/**
* Used to convert internal slot to one used in packets
*
* @param slot the internal slot
* @return a slot id which can be used for packets
*/
public static int convertToPacketSlot(int slot) {
if (slot > -1 && slot < 9) { // Held bar 0-8
slot = slot + 36;
} else if (slot > 8 && slot < 36) { // Inventory 9-35
slot = slot;
} else if (slot >= CRAFT_RESULT && slot <= CRAFT_SLOT_4) { // Crafting 36-40
slot = slot - 36;
} else if (slot >= HELMET_SLOT && slot <= BOOTS_SLOT) { // Armor 41-44
slot = slot - 36;
} else if (slot == OFFHAND_SLOT) { // Off hand
slot = 45;
}
return slot;
}
/**
* Used to convert the clients inventory slot to a Minestom slot.
* The client's inventory does not count the crafting slots.
*
* @param slot the client slot
* @return a slot which can be used internally with Minestom
*/
public static int convertClientInventorySlot(int slot) {
if (slot == 36) return BOOTS_SLOT;
if (slot == 37) return LEGGINGS_SLOT;
if (slot == 38) return CHESTPLATE_SLOT;
if (slot == 39) return HELMET_SLOT;
if (slot == 40) return OFFHAND_SLOT;
return slot;
}
}