lambda-client · emyfops · Nov 27, 2025 · Sep 28, 2025 · Sep 28, 2025 · Oct 14, 2025
diff --git a/src/main/java/com/lambda/mixin/MinecraftClientMixin.java b/src/main/java/com/lambda/mixin/MinecraftClientMixin.java
@@ -24,6 +24,7 @@
 import com.lambda.event.events.TickEvent;
 import com.lambda.gui.DearImGui;
 import com.lambda.gui.components.ClickGuiLayout;
+import com.lambda.module.modules.movement.BetterFirework;
 import com.lambda.module.modules.player.Interact;
 import com.lambda.module.modules.player.InventoryMove;
 import com.lambda.module.modules.player.PacketMine;
@@ -189,6 +190,18 @@ void injectFastPlace(CallbackInfo ci) {
         itemUseCooldown = Interact.getPlaceDelay();
     }
 
+    @WrapMethod(method = "doItemUse")
+    void injectItemUse(Operation<Void> original) {
+        if (BetterFirework.INSTANCE.isDisabled() || !BetterFirework.onInteract())
+            original.call();
+    }
+
+    @WrapMethod(method = "doItemPick")
+    void injectItemPick(Operation<Void> original) {
+        if (BetterFirework.INSTANCE.isDisabled() || !BetterFirework.onPick())
+            original.call();
+    }
+
     @WrapMethod(method = "getTargetMillisPerTick")
     float getTargetMillisPerTick(float millis, Operation<Float> original) {
         var length = TimerManager.INSTANCE.getLength();

diff --git a/src/main/kotlin/com/lambda/config/settings/complex/KeybindSetting.kt b/src/main/kotlin/com/lambda/config/settings/complex/KeybindSetting.kt
@@ -176,6 +176,12 @@ data class Bind(
         if (modifiers and GLFW_MOD_NUM_LOCK != 0) add(KeyCode.NumLock)
     }
 
+    val isMouseBind: Boolean
+        get() = mouse >= 0
+
+    val isKeyBind: Boolean
+        get() = key > 0
+
     val name: String
         get() {
             if (mouse < 0 && modifiers <= 0 && key <= 0) return "Unbound"

diff --git a/src/main/kotlin/com/lambda/module/modules/movement/BetterFirework.kt b/src/main/kotlin/com/lambda/module/modules/movement/BetterFirework.kt
@@ -0,0 +1,257 @@
+/*
+ * Copyright 2025 Lambda
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.lambda.module.modules.movement
+
+import com.lambda.config.groups.HotbarSettings
+import com.lambda.config.groups.InventorySettings
+import com.lambda.config.settings.collections.SetSetting.Companion.immutableSet
+import com.lambda.config.settings.complex.Bind
+import com.lambda.context.SafeContext
+import com.lambda.event.events.KeyboardEvent
+import com.lambda.event.events.MouseEvent
+import com.lambda.event.events.TickEvent
+import com.lambda.event.listener.SafeListener.Companion.listen
+import com.lambda.interaction.material.StackSelection.Companion.selectStack
+import com.lambda.interaction.request.hotbar.HotbarRequest
+import com.lambda.interaction.request.inventory.InventoryRequest.Companion.inventoryRequest
+import com.lambda.module.Module
+import com.lambda.module.tag.ModuleTag
+import com.lambda.threading.runSafe
+import com.lambda.util.KeyCode
+import com.lambda.util.Mouse
+import com.lambda.util.NamedEnum
+import com.lambda.util.player.SlotUtils.hotbar
+import com.lambda.util.player.SlotUtils.hotbarAndStorage
+import net.minecraft.client.network.ClientPlayerEntity
+import net.minecraft.entity.effect.StatusEffects
+import net.minecraft.item.Items
+import net.minecraft.network.packet.c2s.play.ClientCommandC2SPacket
+import net.minecraft.network.packet.c2s.play.HandSwingC2SPacket
+import net.minecraft.util.Hand
+import net.minecraft.util.hit.HitResult
+
+object BetterFirework : Module(
+    name = "BetterFirework",
+    description = "Automatic takeoff with fireworks",
+    tag = ModuleTag.MOVEMENT,
+) {
+    private var activateButton by setting("Activate Key", Bind(0, 0, Mouse.Middle.ordinal), "Button to activate Firework").group(Group.General)
+    private var midFlightActivationKey by setting("Mid-Flight Activation Key", Bind(0, 0, KeyCode.Unbound.code), "Firework use key for mid flight activation").group(Group.General)
+    private var middleClickCancel by setting("Middle Click Cancel", false, description = "Cancel pick block action on middle mouse click") { activateButton.key != KeyCode.Unbound.code }.group(Group.General)
+    private var fireworkInteract by setting("Right Click Fly", true, "Automatically start flying when right clicking fireworks")
+    private var fireworkInteractCancel by setting("Right Click Cancel", false, "Cancel block interactions while holding fireworks") { fireworkInteract }
+
+    private var clientSwing by setting("Swing", true, "Swing hand client side").group(Group.General)
+    private var invUse by setting("Inventory", true, "Use fireworks from inventory") { activateButton.key != KeyCode.Unbound.code }.group(Group.General)
+
+    override val hotbarConfig = HotbarSettings(this, Group.Hotbar, vis = { false }).apply {
+        ::sequenceStageMask.edit { immutableSet(setOf(TickEvent.Pre)); defaultValue(mutableSetOf(TickEvent.Pre)) }
+    }
+
+    override val inventoryConfig = InventorySettings(this, Group.Inventory, vis = { false }).apply {
+        ::tickStageMask.edit { immutableSet(setOf(TickEvent.Pre)); defaultValue(mutableSetOf(TickEvent.Pre)) }
+    }
+
+    private enum class Group(override val displayName: String) : NamedEnum {
+        General("General"),
+        Hotbar("Hotbar"),
+        Inventory("Inventory")
+    }
+
+    private var takeoffState = TakeoffState.None
+
+    val ClientPlayerEntity.canTakeoff: Boolean
+        get() = isOnGround || canOpenElytra
+
+    val ClientPlayerEntity.canOpenElytra: Boolean
+        get() = !abilities.flying && !isClimbing && !isGliding && !isTouchingWater && !isOnGround && !hasVehicle() && !hasStatusEffect(StatusEffects.LEVITATION)
+
+    init {
+        listen<TickEvent.Pre> {
+            when (takeoffState) {
+                TakeoffState.None -> {}
+
+                TakeoffState.Jumping -> {
+                    player.jump()
+                    takeoffState = TakeoffState.StartFlying
+                }
+
+                TakeoffState.StartFlying -> {
+                    if (player.canOpenElytra) {
+                        player.startGliding()
+                        connection.sendPacket(ClientCommandC2SPacket(player, ClientCommandC2SPacket.Mode.START_FALL_FLYING))
+                    }
+                    startFirework(invUse)
+                    takeoffState = TakeoffState.None
+                }
+            }
+        }
+        listen<MouseEvent.Click> {
+            if (!it.isPressed) {
+                return@listen
+            }
+            if (it.satisfies(activateButton)) {
+                if (activateButton.mouse == mc.options.pickItemKey.boundKey.code) {
+                    return@listen
+                }
+                runSafe {
+                    if (takeoffState != TakeoffState.None) {
+                        return@listen // Prevent using multiple times
+                    }
+                    if (player.canOpenElytra || player.isGliding) {
+                        // If already gliding use another firework
+                        takeoffState = TakeoffState.StartFlying
+                    } else if (player.canTakeoff) {
+                        takeoffState = TakeoffState.Jumping
+                    }
+                }
+            }
+            if (it.satisfies(midFlightActivationKey)) {
+                runSafe {
+                    if (player.isGliding)
+                        takeoffState = TakeoffState.StartFlying
+                }
+            }
+        }
+        listen<KeyboardEvent.Press> {
+            if (!it.isPressed) {
+                return@listen
+            }
+            if (it.satisfies(activateButton)) {
+                if (activateButton.key != mc.options.pickItemKey.boundKey.code) {
+                    runSafe {
+                        if (takeoffState == TakeoffState.None) {
+                            if (player.canOpenElytra || player.isGliding) {
+                                // If already gliding use another firework
+                                takeoffState = TakeoffState.StartFlying
+                            } else if (player.canTakeoff) {
+                                takeoffState = TakeoffState.Jumping
+                            }
+                        }
+                    }
+                }
+            }
+            if (it.satisfies(midFlightActivationKey)) {
+                runSafe {
+                    if (player.isGliding)
+                        takeoffState = TakeoffState.StartFlying
+                }
+            }
+        }
+    }
+
+    /**
+     * Returns true if the mc item interaction should be canceled
+     */
+    @JvmStatic
+    fun onInteract() =
+        runSafe {
+            when {
+                !fireworkInteract ||
+                        player.inventory.selectedStack?.item != Items.FIREWORK_ROCKET ||
+                        player.isGliding || // No need to do special magic if we are already holding fireworks and flying
+                        (mc.crosshairTarget != null && mc.crosshairTarget!!.type != HitResult.Type.MISS && !fireworkInteractCancel) -> false
+                else -> {
+                    mc.itemUseCooldown += 4
+                    val cancelInteract = player.canTakeoff || fireworkInteractCancel
+                    if (player.canTakeoff) {
+                        takeoffState = TakeoffState.Jumping
+                    } else if (player.canOpenElytra) {
+                        takeoffState = TakeoffState.StartFlying
+                    }
+                    cancelInteract
+                }
+            }
+        } ?: false
+
+    /**
+     * Returns true when the pick interaction should be canceled.
+     */
+    @JvmStatic
+    fun onPick() =
+        runSafe {
+            when {
+                (mc.crosshairTarget?.type == HitResult.Type.BLOCK && !middleClickCancel) ||
+                        (!activateButton.isMouseBind || activateButton.mouse != mc.options.pickItemKey.boundKey.code) ||
+                        takeoffState != TakeoffState.None -> false // Prevent using multiple times
+                else -> {
+                    if (player.canOpenElytra || player.isGliding) {
+                        // If already gliding use another firework
+                        takeoffState = TakeoffState.StartFlying
+                    } else if (player.canTakeoff) {
+                        takeoffState = TakeoffState.Jumping
+                    }
+                    middleClickCancel
+                }
+            }
+        } ?: false
+
+    fun SafeContext.sendSwing() {
+        if (clientSwing) {
+            player.swingHand(Hand.MAIN_HAND)
+        } else {
+            connection.sendPacket(HandSwingC2SPacket(Hand.MAIN_HAND))
+        }
+    }
+
+    /**
+     * Use a firework from the hotbar or inventory if possible.
+     * Return true if a firework has been used
+     */
+    fun SafeContext.startFirework(silent: Boolean) {
+        val stack = selectStack(count = 1) { isItem(Items.FIREWORK_ROCKET) }
+
+        stack.bestItemMatch(player.hotbar)
+            ?.let {
+                val request = HotbarRequest(player.hotbar.indexOf(it), this@BetterFirework, keepTicks = 0)
+                    .submit(queueIfClosed = false)
+                if (request.done) {
+                    interaction.interactItem(player, Hand.MAIN_HAND)
+                    sendSwing()
+                }
+                return
+            }
+
+        if (!silent) return
+
+        stack.bestItemMatch(player.hotbarAndStorage)
+            ?.let {
+                val swapSlotId = player.hotbarAndStorage.indexOf(it)
+                val hotbarSlotToSwapWith = player.hotbar.find { slot -> slot.isEmpty }?.let { slot -> player.hotbar.indexOf(slot) } ?: 8
+
+                inventoryRequest {
+                    swap(swapSlotId, hotbarSlotToSwapWith)
+                    action {
+                        val request = HotbarRequest(hotbarSlotToSwapWith, this@BetterFirework, keepTicks = 0, nowOrNothing = true)
+                            .submit(queueIfClosed = false)
+                        if (request.done) {
+                            interaction.interactItem(player, Hand.MAIN_HAND)
+                            sendSwing()
+                        }
+                    }
+                    swap(swapSlotId, hotbarSlotToSwapWith)
+                }.submit()
+            }
+    }
+
+    enum class TakeoffState {
+        None,
+        Jumping,
+        StartFlying
+    }
+}