Savegame format is changed: added string fields to store poison ID for weapons and projectiles.
The main idea: treat potions without positive effects as posions and apply them to equipped weapon when consuming.
Also alters potion creation: if there are no positive effects, do not decrease power of negative effects of created poison.
You can poison weapon (inluding bows and crossbows) only before combat (due to balance issues), so throwing weapon is more powerful now.
Poison applies only for first strike with given weapon. Applied poisons with same ID do not stack, as spells.
About GUI:
1. There is a poison indicator on HUD, which shows first effect of poison:
On attached screenshot, equipped sword uses pyroil tar as a poison, and first attack will add "20 pt. fire damage per 60 seconds" effect to target.
2. Poison effects are shown on the weapon tooltip.
As alternative (and simplier) solution we can implement something similar to TESO:
1. Add a separate equipment slot for poisons.
2. When you hit with melee weapons or launch projectile, check if PC has a poison equipped.
If yes, apply the poison and remove 1 bottle from equipped stack.
The only thing is I am afraid of with this solution - is the balance.
Probably we will need to add a cooldown between poison usages (one attack per 30 seconds, for example). Also we can make indicator semi-transparent or grayscale during cooldown.
Any ideas?
