different appearance for fixed-rate contracts (#619)

kubejs/assets/wares/models/item/delivery_agreement.json

@@ -0,0 +1,9 @@
+{
+  "parent": "item/generated",
+  "textures": {
+    "layer0": "wares:item/delivery_agreement"
+  },
+  "overrides": [
+    {"predicate": { "count": 1.0000 },"model": "wares:item/fixed_rates_delivery_agreement"}
+  ]
+}

kubejs/assets/wares/models/item/fixed_rates_delivery_agreement.json

@@ -0,0 +1,6 @@
+{
+  "parent": "item/generated",
+  "textures": {
+    "layer0": "wares:item/fixed_rates_delivery_agreement"
+  }
+}

kubejs/startup_scripts/predicates.js

@@ -0,0 +1,33 @@
+// priority: -20
+
+global.predicates = {}
+
+/**
+ *
+ * @param {Internal.ItemStack} stack
+ * @returns
+ */
+global.predicates.waresPredicate = function (stack) {
+  if(!stack.nbt) return 0 
+  return stack.nbt.ordered ? 0 : 1
+};
+
+//by @reveter from the kubejs discord
+StartupEvents.postInit((event) => {
+  console.log("= predicate");
+  if (!Platform.isClientEnvironment) return;
+  const $ItemProperties = Java.loadClass(
+    "net.minecraft.client.renderer.item.ItemProperties"
+  );
+  console.log("= got class");
+  console.log($ItemProperties);
+
+  $ItemProperties.register(
+    Item.of("wares:delivery_agreement"),
+    new ResourceLocation("count"),
+    (stack, world, living, seed) => {
+      if(!global.predicates.waresPredicate) return 0;
+      return global.predicates.waresPredicate(stack);
+    }
+  );
+});