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Possible addition to Mixin Examples External Link

Modifying a static block

static {
int i = 4;
}

  1. public class ExampleMod implements ModInitializer {
  2.     [...]
  3.  
  4.     @Override
  5.     public void onInitialize() {
  6.         AttackBlockCallback.EVENT.register((player, world, hand, pos, direction) -> {
  7.             BlockState state = world.getBlockState(pos);
  8.             /* Manual spectator check is necessary because AttackBlockCallbacks
  9.                fire before the spectator check */
  10.             if (state.isToolRequired() && !player.isSpectator() && 
  11.                 player.getMainHandStack().isEmpty()) {
  12.                 player.damage(player.getDamageSources().generic(), 1.0F);
  13.             } 
  14.             return ActionResult.PASS;
  15.         });
  16.     }
  17. }