This page intends to describe the rules used by FreedroidRPG related to the armor.

Introduction

Player armor

This system is the result of many tries along the years, and is simple yet effective and realistic. The general idea is that the stronger your armor, the less damage you will take when you are hit.

The armor strength is indicated by a unitless value called "armor class". The armor class is fed through a mathematical function that computes the damage reduction based on the armor class.

The law we use is the following (armor.c): float damage_reduction = exp(-0.0134 * armor_class);

Enemy armor

Armor for enemies is handled in a very simple way: they have no armor at all. No armor and more health points is equivalent to having armor, so for the sake of simplicity we do not use armor for enemies.

Summary table

Hit conditions	Player	Bots
Bullets	always hits	always hits
Blasts	always hits	always hits
Melee strikes	strike's "to_hit"	strike's "to_hit" (since rev. 3527)
Radial spells	not applicable	always hits

Damage dealt	Player	Bots
Bullets	Damage reduced by armor	No damage reduction
Blasts	Damaged reduced by armor (to be tested, rev. 3526)	No damage reduction
Melee strikes	Damage reduced by armor	No damage reduction
Radial spells	not applicable	No damage reduction

Bullets

Bullets are fired by ranged weapons. A bullet can hit the player, or robots, or any obstacle.

Bullets hitting player

When a bullet hits the player, its "damage" value is multiplied by the damage reduction factor computed from the player armor class, and this is removed from the player's health points.

Bullets hitting robots

Robots currently have no armor class. As a result, the full damage of the bullet is applied to them whenever a bullet hits.

Melee strikes

A melee strike is the data structure that is created when a melee weapon is used ingame. A melee strike has a damage value, and a chance to hit.

Striking the player

The chance to hit the player is fixed (it is the melee strike's chance to hit). if (MyRandom(100) < CurMelS->to_hit)

If the strike does not hit, no damage is dealt. If the strike hits, the damage dealt is the melee strike's damage multiplied by the damage factor (hence reduced by the armor).

Striking robots

The chance to hit a robot is the melee strike's chance to hit, but reduced by the "monster_level" of the robot. if (MyRandom(100) < compute_hit_multiplier(Druidmap[tg->type].monster_level) * CurMelS->to_hit )

Blasts

A blast is an explosion. Exterminator bullets create blasts when they explode, for example. A blast is characterized by an area of effect and a damage-per-second value.

Blasts on player

Blasts on robots

Blasts on player and robots do the full damage-per-second with no reduction whatsoever.

ArmorRules