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114 changes: 114 additions & 0 deletions src/main/kotlin/com/lambda/module/modules/movement/AutoMount.kt
Original file line number Diff line number Diff line change
@@ -0,0 +1,114 @@
/*
* Copyright 2026 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.AutomationConfig
import com.lambda.context.SafeContext
import com.lambda.event.events.TickEvent
import com.lambda.event.listener.SafeListener.Companion.listen
import com.lambda.interaction.managers.rotating.visibilty.VisibilityChecker
import com.lambda.interaction.managers.rotating.visibilty.VisibilityChecker.findRotation
import com.lambda.module.Module
import com.lambda.module.tag.ModuleTag
import com.lambda.threading.runSafeAutomated
import com.lambda.util.Communication.debug
import com.lambda.util.Communication.info
import com.lambda.util.EntityUtils
import com.lambda.util.Timer
import com.lambda.util.math.dist
import com.lambda.util.world.fastEntitySearch
import net.minecraft.entity.Entity
import net.minecraft.entity.EntityType
import net.minecraft.network.packet.c2s.play.PlayerInteractEntityC2SPacket
import net.minecraft.registry.Registries
import net.minecraft.util.Hand
import net.minecraft.util.math.Vec3d
import kotlin.time.Duration.Companion.milliseconds

class AutoMount : Module(
name = "AutoMount",
description = "Automatically mounts entities",
tag = ModuleTag.MOVEMENT
) {
var autoRemount by setting("Auto Remount", false, description = "Automatically remounts if you get off")
var autoMountEntities by setting("Auto Mount Entities", true, description = "Automatically mounts nearby entities in range")
var autoMountEntityList by setting("Auto Mount Entity List",
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settings should be written on one line with the exception of some builder style functions like onSelect, onDeselect, onValueChange, etc

mutableListOf(),
Registries.ENTITY_TYPE.toList()
) { autoMountEntities }

var interval by setting("Interval", 50, 1..200, 1, unit = "ms", description = "Interact interval")
var range by setting("Range", 4.0, 1.0..20.0, 0.1, description = "Mount range")

override var automationConfig = AutomationConfig(
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automation configs are set using setDefaultAutomationConfig at the start of the init block

name = "AutoMount"
)

val intervalTimer = Timer()
var lastEntity: Entity? = null

init {
onEnable {
intervalTimer.reset()
lastEntity = null
}

listen<TickEvent.Pre> {
if (!intervalTimer.timePassed(interval.milliseconds)) {
return@listen
}
if (autoMountEntities && player.vehicle == null) {
runSafeAutomated {
val entity = fastEntitySearch<Entity>(10.0) {
autoMountEntityList.contains(it.type) && canRide(it) && it.findRotation(range, player.eyePos) != null
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I think its best to have a rotation setting as currently this checks if its possible for a valid rotation but doesnt perform it.

}.sortedBy { it.squaredDistanceTo(player.pos) }
entity.firstOrNull()?.let {
intervalTimer.reset()
interactEntity(it)
debug("Mounting ${it.name}")
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just a nitpick but a log setting or something could be good

}
}
}
if (autoRemount) {
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in situations like this i would check if (!autoRemount) return@listen

if (player.vehicle != null) {
lastEntity = player.vehicle
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here for example, you could add return@listen in the if statement and then you dont have to wrap the rest in the else

} else {
lastEntity?.let {
if (it.isRemoved || it.distanceTo(player) > range) {
lastEntity = null
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here as well; return@let

} else {
if (canRide(it)) {
intervalTimer.reset()
interactEntity(it)
}
}
}
}
}
}
}

private fun SafeContext.interactEntity(entity: Entity) {
mc.networkHandler?.sendPacket(PlayerInteractEntityC2SPacket.interactAt(entity, false, Hand.MAIN_HAND, Vec3d(0.5, 0.5, 0.5)))
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ideally we should fill the parameters with accurate data like player.isSneaking instead of false

mc.networkHandler?.sendPacket(PlayerInteractEntityC2SPacket.interact(entity, false, Hand.MAIN_HAND))
}

private fun SafeContext.canRide(entity: Entity): Boolean {
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can be inlined into

private fun SafeContext.canRide(entity: Entity) = entity.canAddPassenger(player)

return entity.canAddPassenger(player)
}
}
3 changes: 3 additions & 0 deletions src/main/resources/lambda.accesswidener
Original file line number Diff line number Diff line change
Expand Up @@ -123,3 +123,6 @@ transitive-accessible method net/minecraft/item/BlockItem getPlacementState (Lne
transitive-accessible method net/minecraft/block/AbstractBlock getPickStack (Lnet/minecraft/world/WorldView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Z)Lnet/minecraft/item/ItemStack;
transitive-accessible field net/minecraft/client/gui/screen/ingame/HandledScreen focusedSlot Lnet/minecraft/screen/slot/Slot;
transitive-accessible field net/minecraft/registry/SimpleRegistry frozen Z

# AutoMount
accessible method net/minecraft/entity/Entity canAddPassenger (Lnet/minecraft/entity/Entity;)Z
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this can just be placed under the # Entity group