From ca2cb017cc1fc006680da451424480c4f3abd001 Mon Sep 17 00:00:00 2001
From: jasonlaubb <136591629+jasonlaubb@users.noreply.github.com>
Date: Sun, 3 Dec 2023 12:11:19 +0800
Subject: [PATCH] FlyC and fix something

---
 src/Modules/Movement/Fly.ts      | 30 ++++++++++++++++++++++++++++--
 src/Modules/Movement/Movement.ts |  2 +-
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/src/Modules/Movement/Fly.ts b/src/Modules/Movement/Fly.ts
index 0e25f40a..29c0027a 100644
--- a/src/Modules/Movement/Fly.ts
+++ b/src/Modules/Movement/Fly.ts
@@ -1,9 +1,10 @@
-import { world, system, GameMode, Player, Vector3, Dimension } from "@minecraft/server";
+import { world, system, GameMode, Player, Vector3, Dimension, PlayerLeaveAfterEvent } from "@minecraft/server";
 import { flag, isAdmin, c } from "../../Assets/Util";
 import { MinecraftBlockTypes, MinecraftEffectTypes } from "../../node_modules/@minecraft/vanilla-data/lib/index";
 import lang from "../../Data/Languages/lang";
 
 const previousLocations = new Map<string, Vector3>();
+const fallDistances = new Map<string, number[]>();
 
 /**
  * @author RaMiGamerDev & ravriv
@@ -42,12 +43,29 @@ async function AntiFly (player: Player, now: number) {
     //try to increase the velocity limit when player is jumping
     let maxVelocity = player.isJumping ? 0.8 : 0.7
 
+    const airState = inAir(player.dimension, player.location)
     if (prevLoc && !player.hasTag("matrix:knockback") && !player.hasTag("matrix:slime") && !isOnGround && !player.isFlying && !player.isGliding && !player.isInWater && !(jumpEffect && jumpEffect.amplifier > 2) && !(threwTridentAt && now - threwTridentAt < 3000)) {
-        if ((velocity > maxVelocity && velocity !== 1 && inAir(player.dimension, player.location)) || velocity > 3.5) {
+        if ((velocity > maxVelocity && velocity !== 1 && airState) || velocity > 3.5) {
             if (!config.slient) player.teleport(prevLoc)
             flag (player, "Fly", "A", config.antiFly.maxVL, config.antiFly.punishment, [lang(">velocityY") + ":" + + velocity.toFixed(2)])
         }
     }
+
+    if (player.isGliding) {
+        const data = fallDistances.get(player.id) ?? []
+        data.push(player.fallDistance)
+        if (data.length > 4) {
+            data.shift()
+            if (data.every(f => player.fallDistance == f) && player.fallDistance !== 1 && player.fallDistance <= 1.05 && velocity < -0.01) {
+                if (!config.slient) player.teleport(prevLoc)
+                player.applyDamage(8)
+                flag (player, "Fly", "C", config.antiFly.maxVL, config.antiFly.punishment, [lang(">velocityY") + ":" + + velocity.toFixed(2)])
+            }
+        }
+        fallDistances.set(player.id, data)
+    } else {
+        fallDistances.set(player.id, undefined)
+    }
 }
 async function AntiNoFall (player: Player, now: number) {
     const config = c()
@@ -116,6 +134,11 @@ function findSlime (dimension: Dimension, location: Vector3) {
     })?.typeId === MinecraftBlockTypes.Slime))
 }
 
+const playerLeave = ({playerId}: PlayerLeaveAfterEvent) => {
+    previousLocations.delete(playerId)
+    fallDistances.delete(playerId)
+}
+
 let id: { [key: string]: number }
 
 export default {
@@ -124,10 +147,13 @@ export default {
             a: system.runInterval(antiFly, 1),
             b: system.runInterval(antiNofall, 10)
         }
+        world.afterEvents.playerLeave.subscribe(playerLeave)
     },
     disable () {
         previousLocations.clear()
+        fallDistances.clear()
         system.clearRun(id.a)
         system.clearRun(id.b)
+        world.afterEvents.playerLeave.unsubscribe(playerLeave)
     }
 }
\ No newline at end of file
diff --git a/src/Modules/Movement/Movement.ts b/src/Modules/Movement/Movement.ts
index 2ab627a7..63a510a4 100644
--- a/src/Modules/Movement/Movement.ts
+++ b/src/Modules/Movement/Movement.ts
@@ -45,7 +45,7 @@ async function Movement (player: Player, now: number) {
     const difference = Math.hypot(x2 - x1, z2 - z1)
 
     //flag the player
-    if(hVelocity > config.antiMovement.maxHorizontalVelocity && (Math.abs(x1 - x2) > 0.1 || Math.abs(x1 - x2) > 0.1)) {
+    if(hVelocity > config.antiMovement.maxHorizontalVelocity && (Math.abs(x1 - x2) > 0.1 || Math.abs(x1 - x2) > 0.1) && !player.isGliding) {
         player.sendMessage(String(difference))
         flag (player, "Movement", "A", config.antiMovement.maxVL, config.antiMovement.punishment, [lang(">velocityXZ") + ":" + hVelocity.toFixed(2)])
         if (!config.slient) player.teleport(lastPos)