From 976659d310605ec3ac546478931e3cf341922ccd Mon Sep 17 00:00:00 2001
From: alemi <me@alemi.dev>
Date: Sat, 4 Mar 2023 01:22:13 +0100
Subject: feat: include sharpness in dps calculation

---
 src/main/java/ftbsc/bscv/tools/Inventory.java | 51 ++++++++++++++++++++++-----
 1 file changed, 43 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/main/java/ftbsc/bscv/tools/Inventory.java b/src/main/java/ftbsc/bscv/tools/Inventory.java
index 5948773..8f1e2f5 100644
--- a/src/main/java/ftbsc/bscv/tools/Inventory.java
+++ b/src/main/java/ftbsc/bscv/tools/Inventory.java
@@ -2,11 +2,15 @@ package ftbsc.bscv.tools;
 
 import ftbsc.bscv.ICommons;
 import net.minecraft.client.entity.player.ClientPlayerEntity;
+import net.minecraft.enchantment.Enchantment;
+import net.minecraft.enchantment.Enchantments;
 import net.minecraft.entity.ai.attributes.AttributeModifier;
 import net.minecraft.entity.ai.attributes.Attributes;
 import net.minecraft.inventory.EquipmentSlotType;
 import net.minecraft.inventory.container.Slot;
 import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.CompoundNBT;
+import net.minecraft.nbt.INBT;
 
 import java.util.Collection;
 import java.util.List;
@@ -19,18 +23,49 @@ public class Inventory implements ICommons {
 		return player.inventoryMenu.slots.subList(36, 45);
 	}
 
-	// TODO ????????????? wtf is this is there an easier way?
-	public static double itemDamage(ItemStack item) {
+	// TODO this is hideous, there must be a proper way??????
+	private static String enchId(Enchantment ench) {
+		return ench.getDescriptionId().replace("enchantment.", "").replace(".", ":");
+	}
+
+	public static int getEnchLevel(ItemStack item, Enchantment enchant) {
+		for (INBT tag : item.getEnchantmentTags()) {
+			if (tag instanceof CompoundNBT) {
+				CompoundNBT compound = (CompoundNBT) tag;
+				String ench_id = compound.getString("id");
+				if (Inventory.enchId(enchant).equals(ench_id)) {
+					return compound.getInt("lvl");
+				}
+			}
+		}
+		return 0;
+	}
+
+	public static double itemAttackSpeed(ItemStack item) {
+		Collection<AttributeModifier> speed_attrs =
+			item.getAttributeModifiers(EquipmentSlotType.MAINHAND)
+				.get(Attributes.ATTACK_SPEED);
+		if (speed_attrs.isEmpty()) return 0.;
+		return Math.abs(speed_attrs.iterator().next().getAmount());
+	}
+
+	public static double itemAttackDamage(ItemStack item) {
 		Collection<AttributeModifier> damage_attrs =
 			item.getAttributeModifiers(EquipmentSlotType.MAINHAND)
 				.get(Attributes.ATTACK_DAMAGE);
 		if (damage_attrs.isEmpty()) return 0.;
-		double damage = Math.abs(damage_attrs.iterator().next().getAmount());
-		Collection<AttributeModifier> speed_attrs =
-			item.getAttributeModifiers(EquipmentSlotType.MAINHAND)
-				.get(Attributes.ATTACK_SPEED);
-		if (speed_attrs.isEmpty()) return damage;
-		double speed = Math.abs(speed_attrs.iterator().next().getAmount());
+		return Math.abs(damage_attrs.iterator().next().getAmount());
+	}
+
+	public static double itemDPS(ItemStack item) {
+		double damage = Inventory.itemAttackDamage(item);
+		double speed  = Inventory.itemAttackSpeed(item);
+
+		int sharpness = getEnchLevel(item, Enchantments.SHARPNESS);
+		if (sharpness > 0) {
+			damage += 0.5 * Math.max(0, sharpness - 1) + 1.;
+		}
+
 		return damage / (1. + speed);
 	}
 }
-- 
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