start_ammo_rockets = max(0, start_ammo_rockets);
start_ammo_fuel = max(0, start_ammo_fuel);
warmup_start_ammo_shells = max(0, warmup_start_ammo_shells);
warmup_start_ammo_nails = max(0, warmup_start_ammo_nails);
warmup_start_ammo_cells = max(0, warmup_start_ammo_cells);
start_ammo_rockets = max(0, start_ammo_rockets);
start_ammo_fuel = max(0, start_ammo_fuel);
warmup_start_ammo_shells = max(0, warmup_start_ammo_shells);
warmup_start_ammo_nails = max(0, warmup_start_ammo_nails);
warmup_start_ammo_cells = max(0, warmup_start_ammo_cells);