fix linkboost passives subtracting damage on 1st hit

See merge request !79

Since links start at "link = 0", link boost passives would actually decrease damage on the first hit.

In other words: minor math failure lmao

Fix issues with using skillchange on implict skills

See merge request !78

it's impressive how stupid I am

<insert something about wanting to kill link here>

Fixes issues with skillchange on implicted skills. HOPEFULLY the final fix for this, I will be sad if there's something else that comes up.

Render EP Percentages

See merge request !75

Respect C array boundaries of skin array

See merge request !70

fix run_ondamagepassives

See merge request !73

BTL_initSkillChange fix

See merge request !74

Rawset weapon related tables from DNG_handleEquipLab

See merge request !76

Do not assume mo has valid player object in VFX_Play

See merge request !77

I managed to trigger this bug by causing a skill to be autocasted in a NextTurn hook. It helps to be double sure that we always have valid userdata on our hands to avoid nil warnings.

Going from instantiating then accessing to just accessing should make this code faster. I chose to rawset these tables since it would help mods that manage to create new weapon types much simpler to manage since edits to the Equipment Lab already require bringing over all of its code.

As skillcost passives can lower (or raise) EP costs, this renders EP percentages in both costs and near the EP gauge to give more accurate information for players.

Oops. Probably should have expected this...

Fixes iterative pairing issues + makes skillchange occur after changing subpersonas

Before, run_ondamagepassives only occur once, as it only got reset using resetEntitiesPositions, and also did trigger on multi-hit attacks. This fixes that.

We can only index the skins array between the values of 0 and 254. This was only found out after someone possibly set their defaultskin cv value to a mod character, then restarted the game with said mod unloaded, then went into the player setup menu. The game iterated through the whole skin table trying to find the non-existant skin and reached index 255 which is outside the bounds.