(function CustomItemMod() { const itemTexture = "data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAAKZJREFUOE9j/P//PxMDBIBoEP6HREOl4PLIciA2AyPIgMcM//7KgvWSDJjBBpx9/+YvJzc3Sbq12DhB6sEGsJ19/+YnmQawYhigzc7FcPXnN4KugbqAHWQAy9n3b34T4wJkw6EGYLqAoNVQBWS5ANlwZBfAvUCs/0EGkW0AzBKqGoCSDgh5A80F2KMRpAgfAKUT6kcjsfEPUycmKMQgy8AETkgUZWcAS3CPIf4oSPsAAAAASUVORK5CYII="; ModAPI.meta.title("Custom Item Mod"); ModAPI.meta.icon(itemTexture); ModAPI.meta.description("it's a custom item. what more do you want"); ModAPI.meta.credits("By "); function CustomItem() { var creativeMiscTab = ModAPI.reflect.getClassById("net.minecraft.creativetab.CreativeTabs").staticVariables.tabMisc; //chuck it in the miscellaneous category ig var itemClass = ModAPI.reflect.getClassById("net.minecraft.item.Item"); //Get the item class var itemSuper = ModAPI.reflect.getSuper(itemClass, (x) => x.length === 1); //Get the super() function of the item class that has a length of 1 function CustomItem() { itemSuper(this); //Use super function to get block properties on this class. this.$setCreativeTab(creativeMiscTab); //Set the creative tab of the item to be the misc tab } ModAPI.reflect.prototypeStack(itemClass, CustomItem); // ModAPI equivalent of `extends` in java CustomItem.prototype.$onItemRightClick = function ($itemstack, $world, $player) { //example of how to override a method //use ModAPI.util.wrap to create a proxy of the player and the world without $ prefixes on the properties and methods var player = ModAPI.util.wrap($player); var world = ModAPI.util.wrap($world); if (!world.isRemote) { //If we are on the server // Math.random() returns a number from 0.0 to 1.0, so we subtract 0.5 and then multiply by 2 to make it become -1.0 to 1.0 instead player.motionX += (Math.random() - 0.5) * 3; player.motionZ += (Math.random() - 0.5) * 3; player.motionY += Math.random() * 1.5; // gravity is a thing, so no negative numbers here otherwise it'll be boring } return $itemstack; } // Internal registration function. This will be used to actually register the item on both the client and the server. function internal_reg() { // Construct an instance of the CustomItem, and set it's unlocalized name (translation id) var custom_item = (new CustomItem()).$setUnlocalizedName( ModAPI.util.str("custom_item") ); //Register it using ModAPI.keygen() to get the item id. itemClass.staticMethods.registerItem.method(ModAPI.keygen.item("custom_item"), ModAPI.util.str("custom_item"), custom_item); //Expose it to ModAPI ModAPI.items["custom_item"] = custom_item; //return the instance. return custom_item; } //if the item global exists (and it will on the client), register the item and return the registered instance. if (ModAPI.items) { return internal_reg(); } else { //Otherwise attatch the registration method to the bootstrap method. ModAPI.addEventListener("bootstrap", internal_reg); } } // Run the function when the dedicated server loads. ModAPI.dedicatedServer.appendCode(CustomItem); // Run the function on the client var custom_item = CustomItem(); ModAPI.addEventListener("lib:asyncsink", async () => { ModAPI.addEventListener("lib:asyncsink:registeritems", (renderItem)=>{ renderItem.registerItem(custom_item, ModAPI.util.str("custom_item")); }); AsyncSink.L10N.set("item.custom_item.name", "Cool Custom Item"); AsyncSink.setFile("resourcepacks/AsyncSinkLib/assets/minecraft/models/item/custom_item.json", JSON.stringify( { "parent": "builtin/generated", "textures": { "layer0": "items/custom_item" }, "display": { "thirdperson": { "rotation": [ -90, 0, 0 ], "translation": [ 0, 1, -3 ], "scale": [ 0.55, 0.55, 0.55 ] }, "firstperson": { "rotation": [ 0, -135, 25 ], "translation": [ 0, 4, 2 ], "scale": [ 1.7, 1.7, 1.7 ] } } } )); AsyncSink.setFile("resourcepacks/AsyncSinkLib/assets/minecraft/textures/items/custom_item.png", await (await fetch( itemTexture )).arrayBuffer()); }); })();