more entity events and entity item api

src/main/java/carpet/mixins/DamageTracker_scarpetEventMixin.java

@@ -0,0 +1,24 @@
+package carpet.mixins;
+
+import carpet.fakes.EntityInterface;
+import net.minecraft.entity.LivingEntity;
+import net.minecraft.entity.damage.DamageSource;
+import net.minecraft.entity.damage.DamageTracker;
+import org.spongepowered.asm.mixin.Final;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(DamageTracker.class)
+public class DamageTracker_scarpetEventMixin
+{
+    @Shadow @Final private LivingEntity entity;
+
+    @Inject(method = "onDamage", at = @At("HEAD"))
+    private void onDamageTaken(DamageSource damageSource_1, float float_1, float float_2, CallbackInfo ci)
+    {
+        ((EntityInterface)entity).onDamageCallback(float_2, damageSource_1);
+    }
+}