FastPlace

Overview

FastPlace (implemented as FastUse) removes or reduces the delay between item uses, allowing you to place blocks, throw XP bottles, shoot bows, and use other items much faster than normally possible.

Features

Configurable delay override for any item
Fast block placement
Fast XP bottle throwing
Fast end crystal placement
Fast bow shooting with charge time control
Fast crossbow loading
Ghost block fix option
Per-item-type toggles

Settings

Delay Settings

Delay

number

default:"0"

Item use cooldown in ticks (0-10)

0: Instant placement (fastest but most detectable)
1-2: Very fast (recommended for vanilla)
3-5: Fast but safer for anti-cheat
6-10: Slow but very safe

Item Type Toggles

Blocks

boolean

default:"false"

Apply fast use to block items (cobblestone, obsidian, etc.)

boolean

default:"false"

Apply fast use to XP bottles

Crystals

boolean

default:"false"

Apply fast use to end crystals

All

boolean

default:"false"

Apply fast use to all items (overrides other toggles)

Advanced Settings

Ghost Fix

boolean

default:"false"

Sends additional packets to prevent ghost blocksEnable if blocks appear placed but aren’t actually there

Fast Bow

boolean

default:"false"

Automatically releases bow after minimum charge time

Bow Delay

number

default:"3"

Minimum bow charge time in ticks (3-25)Lower = faster but weaker arrows

Fast Crossbow

boolean

default:"false"

Automatically loads crossbow at minimum charge time

How It Works

Cooldown Override

FastPlace directly modifies the Minecraft client’s item use cooldown timer:

// Located at: player/FastUse.java:106-116
if (((IMinecraftClient) mc).getItemUseCooldown() > delay.getValue().floatValue() 
    && check(mc.player.getMainHandStack().getItem())) {
    ((IMinecraftClient) mc).setItemUseCooldown(delay.getValue().intValue());
}

Item Type Check

Verifies the held item matches enabled settings:

public boolean check(Item item) {
    return (item instanceof BlockItem && blocks.getValue())
        || (item == Items.END_CRYSTAL && crystals.getValue())
        || (item == Items.EXPERIENCE_BOTTLE && xp.getValue())
        || (all.getValue());
}

Ghost Fix (Optional)

If enabled, sends additional placement packets to sync with server:

if (ghostFix.getValue()) {
    PacketManager.INSTANCE.sendPacket(id -> new PlayerInteractItemC2SPacket(
        mc.player.getActiveHand(), id, 
        RotationUtils.getActualYaw(), 
        RotationUtils.getActualPitch()));
}

Item-Specific Behavior

Blocks
Crystals
XP Bottles
Bows
Crossbows

Fast Block Placement

Overrides the 4-tick vanilla placement delay:Vanilla: 4 ticks between placements (~200ms) FastPlace (Delay: 0): Instant placementBest Settings:

Blocks: true
Delay: 0-1  # Vanilla/lenient servers
Delay: 2-3  # Strict servers
Ghost Fix: true  # If blocks appear but aren't solid

Combine with Scaffold for extremely fast bridging

Fast Crystal Placement

Essential for PvP crystal combat:Use Case:

Rapid crystal placement after breaking opponent’s
Faster crystal trades
More crystals placed per second

Recommended Settings:

Crystals: true
Delay: 0-1
Ghost Fix: false  # Usually not needed for crystals

Very low delay may cause crystals not to place due to server-side checks

Fast XP Throwing

Throw XP bottles rapidly:Use Case:

Quick mending repairs mid-combat
Fast XP distribution
XP bombing areas

Settings:

XP: true
Delay: 0

Fast Bow

Automatically releases bow after minimum charge:

// Located at: player/FastUse.java:74-91
if (mainhand.getItem() == Items.BOW && bows.getValue()) {
    if (mc.player.getItemUseTime() >= bowDelay.getValue().intValue()) {
        PacketManager.INSTANCE.sendPacket(
            new PlayerActionC2SPacket(
                PlayerActionC2SPacket.Action.RELEASE_USE_ITEM, 
                BlockPos.ORIGIN, Direction.DOWN));
        mc.player.stopUsingItem();
    }
}

Bow Delay Reference:

3 ticks: Minimum for arrow to fire (weak)
5 ticks: Medium charge
10 ticks: Near full charge
20 ticks: Full charge (max damage)

Best For:

Spam arrows at close range (Delay: 3-5)
Balance of speed and damage (Delay: 8-12)

Fast Crossbow

Auto-loads crossbow at minimum time:

if (crossBow.getValue() && mainhand.getItem() == Items.CROSSBOW && 
    mc.player.getItemUseTime() / (float) CrossbowItem.getPullTime(mc.player.getMainHandStack(), mc.player) > 1.0f) {
    PacketManager.INSTANCE.sendPacket(
        new PlayerActionC2SPacket(
            PlayerActionC2SPacket.Action.RELEASE_USE_ITEM, 
            BlockPos.ORIGIN, Direction.DOWN));
    mc.player.stopUsingItem();
    mc.interactionManager.interactItem(mc.player, Hand.MAIN_HAND);
}

Effect:

Loads as soon as pull time completes
No need to hold right-click
Faster reload cycles

HUD Info Display

FastPlace shows different info based on held item:

// Located at: player/FastUse.java:127-145
@Override
public String getHudInfo() {
    if (mainhand.getItem() == Items.BOW) {
        if (mc.player.getActiveHand() != null) {
            return mc.player.getItemUseTimeLeft() + "";  // Shows charge time
        }
    } else {
        return ((IMinecraftClient) mc).getItemUseCooldown() + "";  // Shows cooldown
    }
    return "";
}

Display Examples:

Blocks: 2 (2 ticks until next placement)
Bow charging: 8 (8 ticks charged)
Idle: “ (empty)

Configuration Presets

Delay: 0
Blocks: true
XP: false
Crystals: false
All: false
Ghost Fix: false
Fast Bow: false
Fast Crossbow: false

→ Instant block placement
→ Safe for vanilla servers
→ No other items affected

Technical Details

Cooldown System

Minecraft uses a cooldown system for item usage:

// IMinecraftClient accessor interface
public interface IMinecraftClient {
    int getItemUseCooldown();
    void setItemUseCooldown(int cooldown);
}

FastPlace directly manipulates this cooldown:

Vanilla: Cooldown starts at 4 ticks
FastPlace: Overrides to your configured delay
Result: Items can be used more frequently

Ghost Block Prevention

Ghost blocks occur when:

Client thinks block is placed
Server rejects the placement
Block appears but has no collision

Ghost Fix sends additional packets to force sync:

PlayerInteractItemC2SPacket(hand, sequenceId, yaw, pitch)

Usage Examples

Enable FastPlace
   - Delay: 0
   - Blocks: true
Enable Scaffold
Sprint + Jump
Blocks place instantly
2-3x faster bridging

Best Practices

Start Conservative

Begin with Delay: 3-5 and gradually decrease if no issues

Test Ghost Blocks

Place blocks and walk into them. If you phase through, enable Ghost Fix

Per-Item Configuration

Enable only the item types you need instead of using All

Bow Timing

Higher Bow Delay = more damage. Find your preferred balance

Compatibility Notes

Compatible
Anti-Cheat
Known Issues

Works with Scaffold for fast building

Works with CrystalAura for fast crystals

Compatible with most item types

Works in all game modes

Delay 0 on strict anti-cheat servers will likely get you kicked or flagged. Start with higher values and decrease carefully.

Troubleshooting

Ghost Blocks Appearing

Symptoms: Blocks appear placed but you can walk through themSolutions:

Enable Ghost Fix
Increase Delay to 2-3
Disable other modules that send placement packets
Check server TPS (lag causes ghost blocks)

Items Not Placing Faster

Check:

Correct item type toggle is enabled
Delay is lower than vanilla (4 ticks)
You’re actually holding the item
Module is enabled

Note: Server-side rate limits may prevent faster placement

Getting Kicked by Anti-Cheat

Solutions:

Increase Delay to 5+
Disable Ghost Fix
Enable only specific item types (not All)
Use in combination with delay on other modules

Bow Not Auto-Releasing

Check:

Fast Bow is enabled
Bow Delay is set correctly (3-20)
You’re holding a bow (not crossbow)
You’re actually pulling the bow back

Scaffold: Combine for extremely fast bridging
CrystalAura: Use with fast crystals for better PvP
AutoTool: Fast tool switching for mining
MultiTask: Use items while doing other actions

Combat

Movement

Render

Misc

Player

Overview

Features

Settings

Delay Settings

Item Type Toggles

Advanced Settings

How It Works

Item-Specific Behavior

Fast Block Placement

Fast Crystal Placement

Fast XP Throwing

Fast Bow

Fast Crossbow

HUD Info Display

Configuration Presets

Technical Details

Cooldown System

Ghost Block Prevention

Usage Examples

Best Practices

Start Conservative

Test Ghost Blocks

Per-Item Configuration

Bow Timing

Compatibility Notes

Troubleshooting

Build docs developers (and LLMs) love

Combat

Movement

Render

Misc

Player

​Overview

​Features

​Settings

​Delay Settings

​Item Type Toggles

​Advanced Settings

​How It Works

​Item-Specific Behavior

​Fast Block Placement

​Fast Crystal Placement

​Fast XP Throwing

​Fast Bow

​Fast Crossbow

​HUD Info Display

​Configuration Presets

​Technical Details

​Cooldown System

​Ghost Block Prevention

​Usage Examples

​Best Practices

Start Conservative

Test Ghost Blocks

Per-Item Configuration

Bow Timing

​Compatibility Notes

​Troubleshooting

​Related Modules

Build docs developers (and LLMs) love

Overview

Features

Settings

Delay Settings

Item Type Toggles

Advanced Settings

How It Works

Item-Specific Behavior

Fast Block Placement

Fast Crystal Placement

Fast XP Throwing

Fast Bow

Fast Crossbow

HUD Info Display

Configuration Presets

Technical Details

Cooldown System

Ghost Block Prevention

Usage Examples

Best Practices

Compatibility Notes

Troubleshooting

Related Modules