[AdrianD]

I added a mechanic to <channelchance> and am wondering if it looks right or if it could be done better. It may be a little confusing but the purpose was learning as much as adding this code. It's an exercise in futility trying to channel at lower levels and the added mechanic mitigates this a bit. It also reinforces those who practice skills when they level, like the old days.

Also, the <distance_moved> and <distancemod> formulas do not do as advertised. The idea seems proper but the implementation is off. I will add to this my results when I get to it.

The big thing I am wondering is if the code in the header is returning the value for the previous level max skill. This mechanic seems to work upon initial testing.

\zone\client.h(695)

	inline uint16 PrevMaxSkill(SkillUseTypes skillid) const { return MaxSkill(skillid, GetClass(), GetLevel()-1); }

\zone\spells.cpp(1105) - <void Mob::CastedSpellFinished>

				// max 93% chance at 252 skill
				channelchance = 30 + GetSkill(SkillChanneling) / 400.0f * 100;
				
				uint16 cS = CastToClient()->GetRawSkill(SkillChanneling); // current skill
				uint16 mS = CastToClient()->MaxSkill(SkillChanneling); // current level max skill
				uint16 pS = CastToClient()->PrevMaxSkill(SkillChanneling); // current level - 1 max skill
				double iA = 20 / (mS - pS); // adjustment interval
				double cA = 0; // cA = adjustement coefficient
				double param, result;
				param = (pow((.0005*cS), 2));

				while (true)
				{
					if (cS >= 200) { 
						break;
					}					
					else if (cS <= pS) {
						break;
					}
					else if (GetLevel () <= 1) {
						cA = (cS * 2);
						result = cA - param;
						channelchance += result;
						break;
					}
					else {
						cA = ((cS - pS)*iA);
						result = cA - param;
						channelchance += result;						
					}
					break;
				}
				channelchance -= attacked_count * 2;
				channelchance += channelchance * channelbonuses / 100.0f;
			}

<snip code>
					distance_moved = d_x * d_x + d_y * d_y;
					// if you moved 1 unit, that's 25% off your chance to regain.
					// if you moved 2, you lose 100% off your chance
					distancemod = distance_moved * 25;
					channelchance -= distancemod;
				}

Thanks

EDIT: here is a visualization of the behavior http://prnt.sc/8s311y

The blue line is the current, unadjusted channelchance. The lower red function is the formula I added. The upper red function is max skill channelchance after adding the the formula.