src/main/java/lv/enes/mc/eris_alchemy/mixin/ItemMixin.java


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package lv.enes.mc.eris_alchemy.mixin;

import lv.enes.mc.eris_alchemy.EMC;
import net.minecraft.network.chat.Component;
import net.minecraft.world.item.Item;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.TooltipFlag;
import net.minecraft.world.level.Level;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.Unique;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

import java.text.DecimalFormat;
import java.util.List;

@Mixin(Item.class)
public abstract class ItemMixin {
	@Unique
	private static final DecimalFormat doubleFormat = new DecimalFormat("0");

	static {
		doubleFormat.setMaximumFractionDigits(1);
	}

	@Inject(method = "appendHoverText", at = @At("RETURN"))
	public void onAppendHoverText(ItemStack stack, Level world, List<Component> tooltip, TooltipFlag context, CallbackInfo ci) {
		var emc = EMC.getInstance(world).get(stack.getItem());
		emc.ifPresent(value -> tooltip.add(Component.literal("EMC %s".formatted(doubleFormat.format(value)))));
	}
}