Armor Class (AC) in Remixed Dungeon represents the protective value of armor that reduces incoming physical damage. It is distinct from the defense skill which determines evasion.

The armor class system works by reducing the damage taken from physical attacks. The calculation is implemented in the Char.java file:

public int absorb( int damage, Char attacker ) {
    // Armor can be bypassed by accuracy, and can overcap
    float effectiveArmor = armorLevel() * (1 + Hero.getBonus( getHeroClass(), getSubClass(), Buffs.ARMOR ));
 
    if (attacker != null) {
        float armorBreakRatio = (float)attacker.attackSkill(this) / (attacker.attackSkill(this) + effectiveArmor);
 
        // Cap the effective armor to the damage being dealt
        effectiveArmor = Math.min(effectiveArmor, damage*2);
 
        // Reduce damage based on armor break ratio
        damage = (int) Math.ceil(damage * (1f - armorBreakRatio));
    }
 
    return damage;
}

• Calculation: Derived from the equipped armor item using getItemFromSlot(Belongings.Slot.ARMOR).DR()
• Definition: Each armor type has a base damage reduction value
• Examples:
  • Cloth Armor: 2-3 points
  • Leather Armor: 3-4 points
  • Mail Armor: 5-6 points
  • Plate Armor: 7-8 points

• Mechanism: Bonuses from effects like armor potions or enchantments
• Formula: armorLevel() * (1 + Hero.getBonus( getHeroClass(), getSubClass(), Buffs.ARMOR ))
• Effect: Multiplies the base armor level by the bonus factor

• Mechanism: Attacker's accuracy can reduce the effectiveness of armor
• Formula: armorBreakRatio = (float)attacker.attackSkill(this) / (attacker.attackSkill(this) + effectiveArmor)
• Effect: Higher attack skill reduces the armor's effectiveness proportionally

• Effective Armor Cap: Math.min(effectiveArmor, damage*2) - Armor can't reduce damage beyond 50% of the original amount
• Damage Reduction: damage * (1f - armorBreakRatio) - Reduces damage based on the armor break ratio
• Final Damage: (int) Math.ceil(damage * (1f - armorBreakRatio)) - Rounded up to ensure at least 1 damage is dealt

• Armor Class: Reduces incoming damage after a hit is successful
• Defense Skill: Determines the chance to avoid being hit entirely
• Relationship: Both systems work together - defense skill prevents hits, armor reduces damage from hits that land

• Hit Occurs: When an attack successfully connects (attack skill > defense skill)
• Armor Absorption: The armor class applies its damage reduction
• Final Damage: The remaining damage after armor reduction is applied

• Armor Type: Different armor classes provide different base DR values
• Armor Level: Upgraded armor provides better protection
• Glyphs: Enchantments on armor can affect its effectiveness
• Armor Buffs: Temporary effects that increase armor effectiveness
• Hero Classes: Some classes have bonuses to armor effectiveness
• Hero Subclasses: Some subclasses provide armor bonuses

• Armor-boosting buffs will multiply the base armor value
• Potion of Shielding provides temporary armor bonus
• Ring of Shielding provides ongoing armor enhancement

• Armor items - Primary source of armor class
• Ring of Shielding - Provides armor bonus
• Potion of Shielding - Temporary armor boost

• Java: Char.java
• Java: Hero.java
• Java: Belongings.java

• Defense Mechanic
• Combat Mechanic
• Armor Item
• Armor Glyphs
• Glyphs