Added a mapping & an armor sample for bedrock

Author: ImDaBigBoss

Bedrock-TexturePack/attachables/magic_helmet.player.json

@@ -0,0 +1,24 @@
+{
+  "format_version": "1.10.0",
+  "minecraft:attachable": {
+    "description": {
+      "identifier": "geyser_custom:magic_helmet.player",
+      "item": { "geyser_custom:magic_helmet": "query.owner_identifier == 'minecraft:player'" },
+      "materials": {
+        "default": "armor_leather",
+        "enchanted": "armor_leather_enchanted"
+      },
+      "textures": {
+        "default": "textures/models/armor/magic_1",
+        "enchanted": "textures/misc/enchanted_item_glint"
+      },
+      "geometry": {
+        "default": "geometry.player.armor.helmet"
+      },
+      "scripts": {
+        "parent_setup": "variable.helmet_layer_visible = 0.0;"
+      },
+      "render_controllers": [ "controller.render.armor" ]
+    }
+  }
+}

Bedrock-TexturePack/textures/item_texture.json

@@ -6,6 +6,11 @@
       "textures": [
         "textures/items/magic_stick"
       ]
+    },
+    "magic_helmet": {
+      "textures": [
+        "textures/items/magic_helmet"
+      ]
     }
   }
 }

Bedrock-TexturePack/textures/items/magic_helmet.tga

@@ -0,0 +1,9 @@
+{
+	"parent": "item/handheld",
+	"textures": {
+		"layer0": "item/stick"
+	},
+	"overrides": [
+		{"predicate": {"custom_model_data": 502698}, "model": "item/magic_stick"}
+	]
+}

Bedrock-TexturePack/textures/models/armor/magic_1.tga

@@ -0,0 +1,19 @@
+{
+    "format_version": 1,
+    "items": {
+        "minecraft:stick": [
+            {
+                "name": "magic_stick",
+                "display_name": "Magic Stick",
+                "custom_model_data": 502698
+            }
+        ],
+        "minecraft:leather_helmet": [
+            {
+                "name": "magic_helmet",
+                "display_name": "Magic Helmet",
+                "custom_model_data": 876513
+            }
+        ]
+    }
+}