Terrarium.Game.GameEngine.doAttacks C# (CSharp) Method

        private void doAttacks()
        {
            IEnumerable<AttackAction> attackActions = CurrentVector.Actions.AttackActions;

            foreach (AttackAction action in attackActions)
            {
                AnimalState attackerState = (AnimalState) _newWorldState.GetOrganismState(action.OrganismID);
                if (attackerState == null || !attackerState.IsAlive)
                {
                    continue;
                }

                AnimalState defenderState = (AnimalState) _newWorldState.GetOrganismState(action.TargetAnimal.ID);
                int damageCaused = 0;
                Boolean escaped = false;
                Boolean killed = false;

                if (defenderState == null)
                {
                    // They were killed and eaten before the attack occurred
                    escaped = true;
                }
                else
                {
                    // See if they are near enough to attack
                    // We let them attack if they are at most 1 rectangle away because
                    // it is hard to get closer than this
                    if (attackerState.IsWithinRect(1, defenderState))
                    {
                        // If the animal is dead, it's just zero damage
                        if (defenderState.IsAlive)
                        {
                            // Figure out the maximum possible attack damage
                            damageCaused = _random.Next(0, attackerState.AnimalSpecies.MaximumAttackDamagePerUnitRadius*
                                                          attackerState.Radius);

                            // Defense doesn't scale based on distance
                            DefendAction defendAction =
                                (DefendAction) CurrentVector.Actions.DefendActions[defenderState.ID];
                            int defendDiscount = 0;
                            if (defendAction != null && defendAction.TargetAnimal.ID == attackerState.ID)
                            {
                                defendDiscount = _random.Next(0,
                                                             defenderState.AnimalSpecies.
                                                                 MaximumDefendDamagePerUnitRadius*
                                                             defenderState.Radius);
                            }

                            if (damageCaused > defendDiscount)
                            {
                                damageCaused = damageCaused - defendDiscount;
                                defenderState.CauseDamage(damageCaused);
                            }
                            else
                            {
                                damageCaused = 0;
                            }

                            killed = !defenderState.IsAlive;
                            defenderState.OrganismEvents.AttackedEvents.Add(new AttackedEventArgs(attackerState));
                        }
                    }
                }

                // Tell the attacker what happened
                attackerState.OrganismEvents.AttackCompleted = new AttackCompletedEventArgs(action.ActionID, action,
                                                                                            killed, escaped,
                                                                                            damageCaused);
            }
        }