Potions(devlog)

Someone suggested it so I added potions. I added speed and jump boost potions that last for 45 seconds and cost 5 coins in the shop. The effects of the potion reset when you die or the time runs out. I ran into a lot of trouble making the jump boost potion until I realized that I was using a pre-existing timer called jump_timer used so the player doesn't feel like they couldn't jump when they were only slightly off of the block. Let me know if I should add another item to the shop. What should I add next?