DAI 3.0 · STEP-BY-STEP

Projectiles

Create projectile physics with speed, gravity, collision, ricochet/homing/return behavior and authoritative impacts.

Build from scratchTest in MinecraftMultiplayer-safe by designDAI 3.0

What you are building

Primary path: data/<namespace>/dai_projectiles/
Create projectile physics with speed, gravity, collision, ricochet/homing/return behavior and authoritative impacts.

Step-by-step

  1. Create a projectile definitionGive it a stable ID under dai_projectiles.
  2. Set physical motionTune speed/gravity/lifetime before damage.
  3. Define collision rulesDecide block/entity collision, owner immunity, team/PvP behavior and pierce/ricochet.
  4. Add impact behaviorDamage, knockback, particles and follow-up functions run server-side.
  5. Spawn through weapon/action logicThe firing action should validate resource/cooldown before projectile creation.
  6. Test moving targets and wallsFire point-blank, long range, through crowds, at corners and while the shooter moves.

Definition of done

  • The feature still works after save/reload.
  • Server state is authoritative; presentation mirrors it.
  • Invalid input cannot duplicate rewards or bypass costs.
  • Two players can use the system without sharing unintended temporary state.
  • Any optional resource pack can be disabled without breaking datapack logic.

Next integration

Once this feature works alone, connect it to a complete loop instead of adding more isolated content. Use the complete-game tracks to see where it belongs in ACMS, Space Between Blocks, MineTrigger or Hollow Spiral.

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