Thank you! Yeah the AI only using one item is sort of "intended". I meant to implement both of the items for the enemy's AI, but since the way I coded the whole AI behaviour was extremely unoptimized and inefficient, it made it impossible for the AI to actually use both items. Basically what ended up happening was that the AI would always use just one item and would never under any circumstance choose the other in any playthrough. So I sadly had to scrap the use of the second item.
When you use the Hammer (which the AI also uses), you take a glass out of the equation, which means your turn gets skipped. The Hammer is meant to be used so that you can choose a glass without having to face the consequences.
This isn't mentioned anywhere in the game, which is a big mistake on my part, but you and your opponent actually both have "lives". Cookies represent your lives, as you only have a set amount of cookies each round. If your Cookie gets dissolved in acid, you lose it, therefore you lose a life. If you run out of cookies before the current round finishes, the Host will end it and start the next one.
I really appreciate the feedback. Thanks for checking out my game!