Outsource accuracy function about gothicfreeaim HOT 2 CLOSED

/* Retrieve draw force scaled between 0 and 100 (percent) */
func int freeAimGetDrawForce() {
    // Scale draw time between 0 and 100, see #43
    return 100;
};

/* Retrieve aiming accuracy scaled between 0 and 100 (percent). Modify this function to alter accuracy calculation */
func int freeAimGetAccuracy() {
    var int accuracy[3]; // Number of factors playing into the accuracy(+1), here: talent [1] and draw force [2]
    // Factor 1: Talent (keep in mind that it might be greater than 100)
    var oCItem weapon; weapon = Npc_GetEquippedRangedWeapon(hero);
    if (weapon.flags &~ ITEM_BOW) { accuracy[1] = hero.HitChance[NPC_TALENT_BOW]; }
    else if (weapon.flags &~ ITEM_CROSSBOW) { accuracy[1] = hero.HitChance[NPC_TALENT_CROSSBOW]; }
    else { MEM_Error("freeAimGetAccuracy: No valid weapon equipped!"); return -1; }; // Invalid, should never happen
    // Factor 2: Draw force
    accuracy[2] = freeAimGetDrawForce(); // Already scaled between [0, 100], see above
    // Factor X: Add any other factors here e.g. weapon-specific accuracy stats, accuracy talent, ...
    // Calculate overall accuracy from all factors (modify the following line for different weighting)
    accuracy[0] = (accuracy[1] + accuracy[2])/2; // Here: simple average
    // Final accuracy needs to be in [0, 100]
    if (accuracy[0] > 100) { accuracy[0] = 100; } else if (accuracy[0] < 0) { accuracy[0] = 0; };
    return accuracy[0];
};

/* ... */

var int accuracy; accuracy = freeAimGetAccuracy();