Examples with PlayerSwapHandItemsEvent org.bukkit.event.player.PlayerSwapHandItemsEvent used on opensource projects

Example 1 with PlayerSwapHandItemsEvent

use of org.bukkit.event.player.PlayerSwapHandItemsEvent in project Glowstone by GlowstoneMC.

the class DiggingHandler method handle.

@Override
public void handle(GlowSession session, DiggingMessage message) {
    GlowPlayer player = session.getPlayer();
    GlowWorld world = player.getWorld();
    EventFactory eventFactory = EventFactory.getInstance();
    GlowBlock block = world.getBlockAt(message.getX(), message.getY(), message.getZ());
    BlockFace face = BlockPlacementHandler.convertFace(message.getFace());
    ItemStack holding = player.getItemInHand();
    if (block.getRelative(face).getType() == Material.FIRE) {
        block.getRelative(face).breakNaturally();
        // returns to avoid breaking block in creative
        return;
    }
    boolean blockBroken = false;
    boolean revert = false;
    Material material = block.getType();
    switch(message.getState()) {
        case START_DIGGING:
            if (block.equals(player.getDigging()) || block.isLiquid()) {
                return;
            }
            // call interact event
            Action action = Action.LEFT_CLICK_BLOCK;
            Block eventBlock = block;
            if (player.getLocation().distanceSquared(block.getLocation()) > 36 || ExtraMaterialTags.AIR_VARIANTS.isTagged(material)) {
                action = Action.LEFT_CLICK_AIR;
                eventBlock = null;
            }
            PlayerInteractEvent interactEvent = eventFactory.onPlayerInteract(player, action, EquipmentSlot.HAND, eventBlock, face);
            // attempt to use item in hand, that is, dig up the block
            if (!BlockPlacementHandler.selectResult(interactEvent.useItemInHand(), true)) {
                // the event was cancelled, get out of here
                revert = true;
            } else if (player.getGameMode() != GameMode.SPECTATOR) {
                player.setDigging(null);
                // emit damage event - cancel by default if holding a sword
                boolean instaBreak = player.getGameMode() == GameMode.CREATIVE || block.getMaterialValues().getHardness() == 0;
                BlockDamageEvent damageEvent = new BlockDamageEvent(player, block, player.getItemInHand(), instaBreak);
                if (player.getGameMode() == GameMode.CREATIVE && holding != null && EnchantmentTarget.WEAPON.includes(holding.getType())) {
                    damageEvent.setCancelled(true);
                }
                eventFactory.callEvent(damageEvent);
                // follow orders
                if (damageEvent.isCancelled()) {
                    revert = true;
                } else {
                    // in creative, break even if denied in the event, or the block
                    // can never be broken (client does not send DONE_DIGGING).
                    blockBroken = damageEvent.getInstaBreak();
                    if (!blockBroken) {
                        // TODO: add a delay here based on hardness
                        player.setDigging(block);
                    }
                }
            }
            break;
        case DiggingMessage.CANCEL_DIGGING:
            player.setDigging(null);
            break;
        case DiggingMessage.FINISH_DIGGING:
            // untrusted)
            break;
        case DiggingMessage.STATE_DROP_ITEM:
            player.dropItemInHand(false);
            return;
        case DiggingMessage.STATE_DROP_ITEMSTACK:
            player.dropItemInHand(true);
            return;
        case DiggingMessage.STATE_SHOT_ARROW_FINISH_EATING:
            final ItemStack usageItem = player.getUsageItem();
            if (usageItem != null) {
                if (Objects.equals(usageItem, holding)) {
                    ItemType type = ItemTable.instance().getItem(usageItem.getType());
                    if (type != null && type instanceof ItemTimedUsage) {
                        ((ItemTimedUsage) type).endUse(player, usageItem);
                    } else {
                    // todo: inform the player that this item cannot be consumed/used
                    }
                } else {
                // todo: verification against malicious clients
                // todo: inform player their item is wrong
                }
            }
            return;
        case DiggingMessage.SWAP_ITEM_IN_HAND:
            ItemStack main = player.getInventory().getItemInMainHand();
            ItemStack off = player.getInventory().getItemInOffHand();
            PlayerSwapHandItemsEvent event = EventFactory.getInstance().callEvent(new PlayerSwapHandItemsEvent(player, off, main));
            if (!event.isCancelled()) {
                player.getInventory().setItemInOffHand(main);
                player.getInventory().setItemInMainHand(off);
                player.updateInventory();
            }
            return;
        default:
            return;
    }
    if (blockBroken && !revert) {
        // fire the block break event
        BlockBreakEvent breakEvent = eventFactory.callEvent(new BlockBreakEvent(block, player));
        if (breakEvent.isCancelled()) {
            BlockPlacementHandler.revert(player, block);
            return;
        }
        MaterialData data = block.getState().getData();
        if (ExtraMaterialTags.BISECTED_BLOCKS.isTagged(material)) {
            if (block.getRelative(BlockFace.DOWN).getType() == material) {
                block = block.getRelative(BlockFace.DOWN);
            }
        }
        BlockType blockType = ItemTable.instance().getBlock(material);
        if (blockType != null) {
            blockType.blockDestroy(player, block, face);
        }
        // destroy the block
        if (!block.isEmpty() && !block.isLiquid() && (player.getGameMode() != GameMode.CREATIVE || blockType instanceof BlockContainer) && world.getGameRuleMap().getBoolean(GameRules.DO_TILE_DROPS)) {
            Collection<ItemStack> drops = blockType.getDrops(block, holding);
            if (blockType instanceof BlockContainer && player.getGameMode() == GameMode.CREATIVE) {
                drops = ((BlockContainer) blockType).getContentDrops(block);
            }
            for (ItemStack drop : drops) {
                GlowItem item = world.dropItemNaturally(block.getLocation(), drop);
                item.setPickupDelay(30);
                item.setBias(player);
            }
        }
        player.addExhaustion(0.005f);
        // STEP_SOUND actually is the block break particles
        world.playEffectExceptTo(block.getLocation(), Effect.STEP_SOUND, block.getType().getId(), 64, player);
        GlowBlockState state = block.getState();
        block.setType(Material.AIR);
        if (blockType != null) {
            blockType.afterDestroy(player, block, face, state);
        }
    } else if (revert) {
        // replace the block that wasn't really dug
        BlockPlacementHandler.revert(player, block);
    } else if (!ExtraMaterialTags.AIR_VARIANTS.isTagged(material)) {
        BlockType blockType = ItemTable.instance().getBlock(material);
        blockType.leftClickBlock(player, block, holding);
    }
}