Question Need assistance with script

if ovnumroom(21002)!=0 wait 5 %echo% With a howling roar, an ancient looking YT-700 lands and its cargo ramp drops down. wait 20 %echo% Suddenly... a repulsor sled with some sort of large livestock container comes quickly sliding out. Immediately afterwards, no sooner than the sled is off the ramp, the ship immediately takes back off again with its engines screaming in protest. The ship spins in place on its altitude thrusters, reversing its attitude, while the cargo ramp starts to close... wait 15 %echo% In the time it takes for a human to blink, the YT-700 is gone... Leaving behind only the container on its sled sitting smack-dab in the middle of the landing pad admist swirling orange haze. That pilot had to have been combat trained to be able to pull that drop, dump, and burn so well in such little time. %load% obj 21002 elseif ovnumroom(21002)>0 wait 5 %echo% Another freighter begins their approach to landing pad in an attempt to land. Upon seeing the cargo container sitting in the center of the pad, the pilot adjusts their course to land at another unoccupied landing pad. else %echo% Something seems off here. end

if !%self.contents(21002)% nop ...exposition... %load% obj 21002 else nop ... object exists... end

if !%self.contents(21002)% wait 5 %echo% With a howling roar, an ancient looking YT-700 lands and its cargo ramp drops down. wait 20 %echo% Suddenly... a repulsor sled with some sort of large livestock container comes quickly sliding out. Immediately afterwards, no sooner than the sled is off the ramp, the ship immediately takes back off again with its engines screaming in protest. The ship spins in place on its altitude thrusters, reversing its attitude, while the cargo ramp starts to close... wait 15 %echo% In the time it takes for a human to blink, the YT-700 is gone... Leaving behind only the container on its sled sitting smack-dab in the middle of the landing pad admist swirling orange haze. That pilot had to have been combat trained to be able to pull that drop, dump, and burn so well in such little time. %load% obj 21002 elseif %self.contents(21002)% wait 5 %echo% As you walk out of the terminal, another freighter begins their approach to the landing pad in an attempt to land. Upon seeing the cargo container sitting in the center of the pad, the pilot adjusts their course, flying to land at another unoccupied landing pad elsewhere at the spaceport. else %echo% Something seems off here. end