Wildlife Survival(Early Testing)

This is an upcoming game im working on, right now its in its first test, very barebones, however im looking to make it nice and simple with it being packed with things, here is what ive done so far. here, you spawn on your grassy habitat, well as a deer you dont look like one tho. during the day fresh berries spawn, you must eat them to get your hunger up, dont let it get to 0 or else. at night all berries go away, so now you have Nightberries, their quite more rare and give less hunger but their something. During sunrise and sunset, rare glowberries spawn, giving you a good 30 more hunger, but they dissapear after so you only have seconds to nick one be carefull of the poison berry, it reduces ur hunger, however u must eat it when u are ready, because if you dont, it will slowly replace all berries in your world with clone so of itself ready to live, then hop in.