floating item

src/main/java/baguchan/better_with_aquatic/mixin/EntityItemMixin.java

@@ -0,0 +1,32 @@
+package baguchan.better_with_aquatic.mixin;
+
+import net.minecraft.core.block.material.Material;
+import net.minecraft.core.entity.Entity;
+import net.minecraft.core.entity.EntityItem;
+import net.minecraft.core.world.World;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Mixin(value = EntityItem.class, remap = false)
+public abstract class EntityItemMixin extends Entity {
+
+	public EntityItemMixin(World world) {
+		super(world);
+	}
+
+	@Inject(method = "checkAndHandleWater", at = @At("HEAD"), cancellable = true)
+	public void checkAndHandleWater(CallbackInfoReturnable<Boolean> cir) {
+		cir.setReturnValue(this.world.isMaterialInBB(this.bb, Material.water));
+	}
+
+	@Inject(method = "tick", at = @At("TAIL"))
+	public void tick(CallbackInfo ci) {
+		if (this.wasInWater) {
+			this.yd += 0.1F;
+			this.yd *= (double) 0.85f;
+		}
+	}
+}

src/main/resources/better_with_aquatic.mixins.json

@@ -5,6 +5,7 @@
   "compatibilityLevel": "JAVA_8",
   "mixins": [
     "BiomeMixin",
+    "EntityItemMixin",
     "EntityMixin",
     "EntityPlayerMixin",
     "NetHandlerMixin",