I'm using a mining/crafting system in my game. Atm, i use an event on a rock with a conditional branch to give the player their ore once they find a vein, however, since i used the erase event command, the vein respawns every time you enter the area. Is there a way to make the ore regenerate oh, say, every three hours instead of every time you enter the area? Also if anybody knows how to make a % chance of getting an ore from a rock instead of just getting it when you press the action button on a rock with a vein event on it, please let me know.