DodgeChance.cs

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using Loot.Api.Attributes;
using Loot.Api.Core;
using Loot.Api.Delegators;
using Loot.Modifiers.Base;
using Terraria;
using Terraria.DataStructures;

namespace Loot.Modifiers.EquipModifiers.Defensive
{
    public class DodgeEffect : ModifierEffect
    {
        public float DodgeChance; // Dodge chance

        public override void ResetEffects()
        {
            DodgeChance = 0f;
        }

        [AutoDelegation("OnPreHurt")]
        [DelegationPrioritization(DelegationPrioritization.Early, 99)]
        private bool TryDodge(bool pvp, bool quiet, ref int damage, ref int hitDirection, ref bool crit, ref bool customDamage, ref bool playSound, ref bool genGore, ref PlayerDeathReason damageSource)
        {
            if (Main.rand.NextFloat() < DodgeChance)
            {
                player.NinjaDodge();
                return false;
            }

            return true;
        }
    }

    [UsesEffect(typeof(DodgeEffect))]
    public class DodgeChance : EquipModifier
    {
        public override ModifierTooltipLine.ModifierTooltipBuilder GetTooltip()
        {
            return base.GetTooltip()
                .WithPositive($"+{Properties.RoundedPower}% dodge chance");
        }

        public override ModifierProperties.ModifierPropertiesBuilder GetModifierProperties(Item item)
        {
            return base.GetModifierProperties(item)
                .WithMaxMagnitude(5f)
                .WithRollChance(0.333f);
        }

        public override void UpdateEquip(Item item, Player player)
        {
            ModifierDelegatorPlayer.GetPlayer(player).GetEffect<DodgeEffect>().DodgeChance += Properties.RoundedPower / 100f;
        }
    }
}