MineXLauncher 1.1

public/resources/mods/jetpack.js

@@ -0,0 +1,19 @@
+ModAPI.require("player"); //We need to add vertical velocity
+var jetpackActive = false; //Variable to track wether or not the jetpack is active
+window.addEventListener("keydown", (event) => { //When a key is pressed
+  if (event.key.toLowerCase() === "h") { //If the key is h
+    jetpackActive = true; //Set jetpack to be active
+  }
+});
+window.addEventListener("keyup", (event) => { //When a key is released
+  if (event.key.toLowerCase() === "h") { //If the key is h
+    jetpackActive = false; //Set jetpack to be inactive
+  }
+});
+ModAPI.addEventListener("update", ()=>{ //Every client tick
+  if(!jetpackActive){ //If the jetpack is not active
+    return; //Exit
+  }
+  ModAPI.player.motionY += 0.2; //Add 0.2 to the players vertical moition
+  ModAPI.player.reload(); //Push changes
+});