Add AntiLevitation.kt fly mode (#259)

* Add AntiLevitation.kt fly mode

* replace the stupid capability fly

* Make the motion more smooth and fix speed

* Cleanup + add timer boost

* Add a legit mode

* Make the Y motion lower so it actually works with levitation 1 lol

* Improve the values a bit

* Add else return statement to make SolarLint happy

* Cleanup

* Cleanup

Co-authored-by: Constructor <[email protected]>

Author: mmvanheusden

src/main/kotlin/com/lambda/client/module/modules/movement/AntiLevitation.kt

@@ -1,20 +1,107 @@
 package com.lambda.client.module.modules.movement
 
+import com.lambda.client.event.events.PlayerTravelEvent
+import com.lambda.client.manager.managers.TimerManager.modifyTimer
+import com.lambda.client.manager.managers.TimerManager.resetTimer
 import com.lambda.client.module.Category
 import com.lambda.client.module.Module
+import com.lambda.client.util.MovementUtils
+import com.lambda.client.util.MovementUtils.calcMoveYaw
+import com.lambda.client.util.MovementUtils.isMoving
+import com.lambda.client.util.MovementUtils.setSpeed
+import com.lambda.client.util.text.MessageSendHelper
 import com.lambda.client.util.threads.safeListener
 import net.minecraft.init.MobEffects
 import net.minecraftforge.fml.common.gameevent.TickEvent
+import kotlin.math.cos
+import kotlin.math.sin
 
 object AntiLevitation : Module(
     name = "AntiLevitation",
-    description = "Removes levitation potion effect",
+    description = "Removes levitation effect (boring) or abuse it (epic)",
     category = Category.MOVEMENT
 ) {
+    private val mode by setting("Mode", Mode.LEGIT, description = "The AntiLevitation mode")
+
+    /* Flight mode */
+    private val vertical by setting("Only Vertical", false, { mode == Mode.FLIGHT }, description = "doesn't apply extra speed when enabled")
+    private val yMotion by setting("Y Motion", 0.002f, 0.0f..0.02f, 0.001f, { mode == Mode.FLIGHT }, description = "The Y Motion that is applied when moving to bypass the anticheat")
+    private val speed by setting("Speed", 0.28f, 0.15f..0.3f, 0.005f, { !vertical && mode == Mode.FLIGHT }, description = "The speed you fly at")
+    private val timer by setting("Timer Boost", true, { !vertical && mode == Mode.FLIGHT }, description = "Use timer for a slight speed boost")
+    private val timerSpeed by setting("Timer Speed", 1.15f, 1.1f..1.2f, 0.01f, { timer && !vertical && mode == Mode.FLIGHT }, description = "The timer modifier")
+
+    /* Legit mode */
+    private val legitYMotion by setting("Motion Up", 0.018f, 0.001f..0.1f, 0.001f, { mode == Mode.LEGIT }, description = "The Y Motion that is applied when moving to bypass the anticheat")
+    private val boost by setting("Sprint Boost", true, { mode == Mode.LEGIT }, description = "Gives you extra motion when control is pressed")
+
+    /* Jump motion (used by flight mode and legit mode) */
+    private val jumpMotion by setting("Jump Motion", 0.099f, 0.090f..0.10f, 0.001f, { mode == Mode.FLIGHT || mode == Mode.LEGIT }, description = "The Y Motion that is applied when you press space")
+
+    private var ready = false
+
+    private enum class Mode {
+        REMOVE, FLIGHT, LEGIT
+    }
+
     init {
+        onDisable {
+            ready = false
+            resetTimer()
+        }
+
         safeListener<TickEvent.ClientTickEvent> {
             if (player.isPotionActive(MobEffects.LEVITATION)) {
-                player.removeActivePotionEffect(MobEffects.LEVITATION)
+                if (mode != Mode.REMOVE && !ready) {
+                    ready = true
+                    MessageSendHelper.sendChatMessage("You can now fly.")
+                }
+                if (mode == Mode.REMOVE) {
+                    player.removeActivePotionEffect(MobEffects.LEVITATION)
+                    MessageSendHelper.sendChatMessage("Removed levitation effect.")
+                }
+            } else {
+                if (ready) {
+                    resetTimer()
+                    MessageSendHelper.sendWarningMessage("Levitation ran out. Brace for impact....")
+                    player.setVelocity(0.0, 0.0, 0.0)
+                    ready = false
+                }
+            }
+        }
+
+        safeListener<PlayerTravelEvent> {
+            if (!ready) return@safeListener
+
+            if (mode == Mode.FLIGHT) {
+                if (MovementUtils.isInputting && !vertical) {
+                    player.isSprinting = false //disables sprinting so you can't go too fast
+                    setSpeed(speed.toDouble())
+                    if (timer && !vertical) modifyTimer(50.0f / timerSpeed)
+                } else {
+                    player.motionY = 0.0
+                    /* Make the motion slowly become 0, so it flattens out smooth */
+                    player.motionX *= 0.8
+                    player.motionZ *= 0.8
+                }
+
+                if (MovementUtils.isInputting || player.isMoving) {
+                    player.motionY = yMotion.toDouble()
+                }
+
+                if (mc.gameSettings.keyBindJump.isKeyDown) player.motionY = jumpMotion.toDouble()
+                if (mc.gameSettings.keyBindSneak.isKeyDown) player.motionY = -0.49
+            } else if (mode == Mode.LEGIT) {
+                /* Override vanilla motion with our own motion */
+                player.motionY = legitYMotion.toDouble()
+
+                if (mc.gameSettings.keyBindJump.isKeyDown) player.motionY = jumpMotion.toDouble()
+                if (mc.gameSettings.keyBindSneak.isKeyDown) player.motionY = 0.005
+
+                if (mc.gameSettings.keyBindSprint.isKeyDown && player.isSprinting && boost) { //player must be sprinting so you can only boost when you press W
+                    val yaw = calcMoveYaw()
+                    player.motionX = -sin(yaw) * 0.26
+                    player.motionZ = cos(yaw) * 0.26
+                }
             }
         }
     }