DAI 2.0 Changelog

1.9.9 → 2.0

DAI 2.0 expands the engine's client-side experience hooks, giving datapack-driven games much more control over first-person combat presentation without replacing Minecraft's entire interaction system.

Added

• Added a custom first-person combat rendering pipeline for DAI experiences.
• Added support for directional melee animations driven by player camera movement.
• Added support for 8 directional attack poses:
  • Up
  • Up-Right
  • Right
  • Down-Right
  • Down
  • Down-Left
  • Left
  • Up-Left
• Added support for a neutral forward thrust / stab when an attack is released without enough directional movement.
• Added draw / unsheathe state tracking for custom melee weapons.
• Added support for held attack input as a combat state instead of forcing every left click into Minecraft's default swing presentation.
• Added support for custom guard / half-draw stances while holding the use input.
• Added camera-delta tracking so experiences can resolve combat direction from the player's actual look movement.
• Added custom hand and held-item transforms for experience-specific attack poses.
• Added client hooks allowing custom combat systems to synchronize physical weapon movement with screen-space slash effects.

Changed

• Custom DAI melee experiences can now suppress Minecraft's default vertical hand-swing animation and replace it with their own motion.
• Attack and use suppression is now scoped to the applicable custom weapon/experience rather than globally replacing normal Minecraft controls.
• First-person rendering can now treat the player's hand and weapon as one coordinated animation instead of only swapping the held item model.
• Custom weapon presentation can remain fully compatible with inventory, GUI, dropped-item, title-screen, and non-combat model states.
• DAI's client input pipeline now exposes enough state for experience packs to distinguish:
  • sheathed
  • drawing
  • drawn
  • directional attack
  • thrust
  • guard
  • recovery

Experience / Datapack Support

• Experiences can pair directional combat poses with their own screen effects, particles, reactions, sounds, and damage logic.
• Resource packs can provide separate visual models for drawn, guarded, directional slash, and thrust states.
• Existing DAI experiences that do not use the new combat hooks continue to use normal Minecraft hand rendering and controls.

Compatibility

• Existing DAI 1.9.9 datapacks remain supported unless they explicitly opt into or depend on the new 2.0 combat presentation hooks.
• Vanilla weapons and unrelated datapacks are not intended to have their normal attack/use behavior replaced.
• The new system is designed as an engine capability for custom games and experiences rather than a mandatory global combat replacement.

Developer Notes

• Added experience-aware first-person render handling.
• Added selective vanilla attack/use suppression for supported custom weapons.
• Added directional camera sampling and attack-state resolution.
• Added custom hand + weapon transform handling through the client render pipeline.
• Added a reusable foundation for future DAI combat styles beyond Musashi Story.

Summary

DAI 2.0 turns first-person combat into another experience-controlled layer of the engine. Datapack games can now move beyond Minecraft's default up-and-down hand swing and build directional melee systems where input, weapon motion, hand animation, and screen effects all represent the same attack.