Create Blood Magic's Root Advancement

This creates the Advancement Tab, and the first advancement on it which is for holding a Blood Altar.

src/generated/resources/assets/bloodmagic/lang/en_us.json

@@ -1,4 +1,6 @@
 {
+  "advancements.bloodmagic.root.description": "Hold a Blood Altar",
+  "advancements.bloodmagic.root.title": "Blood Magic",
   "anointment.bloodmagic.bow_power": "Heavy Shot",
   "anointment.bloodmagic.bow_velocity": "Sniping",
   "anointment.bloodmagic.fortune": "Fortunate",

src/main/java/wayoftime/bloodmagic/common/data/GeneratorLanguage.java

@@ -524,6 +524,10 @@ protected void addTranslations()
 		add("bloodmagic.keybind.cycle_holding_pos", "Cycle Sigil (+)");
 		add("bloodmagic.keybind.cycle_holding_neg", "Cycle Sigil (-)");
 
+		// Advancements
+		add("advancements.bloodmagic.root.title", "Blood Magic");
+		add("advancements.bloodmagic.root.description", "Hold a Blood Altar");
+
 		// Block names
 		addBlock(BloodMagicBlocks.BLANK_RUNE, "Blank Rune");
 		addBlock(BloodMagicBlocks.SPEED_RUNE, "Speed Rune");

src/main/resources/data/bloodmagic/advancements/bloodmagic/root.json

@@ -0,0 +1,36 @@
+{
+  "criteria": {
+    "get_blood_altar": {
+      "trigger": "minecraft:inventory_changed",
+      "conditions": {
+        "items": [
+          {
+            "items": [
+              "bloodmagic:altar"
+            ]
+          }
+        ]
+      }
+    }
+  },
+  "display": {
+    "icon": {
+      "item": "bloodmagic:altar"
+    },
+    "title": {
+      "translate": "advancements.bloodmagic.root.title"
+    },
+    "frame": "task",
+    "background": "bloodmagic:textures/gui/advancements_background.png",
+    "description": {
+      "translate": "advancements.bloodmagic.root.description"
+    },
+    "show_toast": false,
+    "announce_to_chat": true
+  },
+  "requirements": [
+    [
+      "get_blood_altar"
+    ]
+  ]
+}