halloween event

1. New item: halloween_rain:bat_wing_sword (Bat Wing Sword) — a full standalone item entity:

   • assets/halloween_rain/items/bat_wing_sword.json — item definition;
   • assets/halloween_rain/models/item/bat_wing_sword.json — item model (final version: plain minecraft:item/handheld + texture layer0: halloween_rain:item/bat_wing_sword);
   • assets/halloween_rain/textures/item/bat_wing_sword.png — texture 32×32, rotated 45° (vertical axis → horizontal axis), based on the old 16×16 sprite with the bat wings;
   • com/halloween/rain/BatWingSwordItem.class — item logic.

2. The item was added to the vanilla minecraft:swords tag (data/minecraft/tags/item/swords.json) — so the game now counts it as a sword.

🔧 Fixed / Replaced

1. The item was renamed and got its own model and texture:

   • old name/keys — candy_sword / "Candy Sword";
   • new name/keys — bat_wing_sword / "Bat Wing Sword";
   • in the old version there was no custom model at all for this item — now there is, and it's the final version (plain item/handheld, since the display/elements-based rotation attempts failed — the sprite ended up edge-on / changed size). That's why the texture approach was switched to a 45° rotated sprite.

2. The item texture was replaced with the diagonal 32×32 version (45° rotation) so the sword holds at the same angle as a vanilla/netherite sword