Submarine (aka. Depth Charge) --------- by Brian Wilson from ZX Computing, February/March 1984 Its a battle of wits between you and the sub commander. Can you read the sonar correctly and depth charge the U-Boat? Thanks to Brian Wilson for this intriguing game. Imagine you are the Captain of a ship sailing the ocean, tracking down an enemy submarine. Your task is to hunt and destroy the sub, which is not easy, considering that you can't see it! Help at least is at hand in the form of sonar - the delay and pitch of the returning echo is all the information you have, though. And armed with this information you must determine where you think the submarine is, set the depth charge and launch it. Attention all shipping! Now you didn't exactly expect that the submarine commander would just sit there and wait for you to get him, did you? And believe me, he doesn't! He will fire a torpedo at your ship. But wait. Your early warning system will give you an audible warning - can you evade the deadly weapon? The details In order to save over-elaborate instructions in the program, a training facility is built-in and if you press 0 at the start, the submarine will appear, without being armed with torpedos and you cannot score. You need only press any other key to get going. Press 1 for sonar, press 2 to release the depth charge, keys 5 and 8 move your ship and keys 6 and 7 control the depth of charge. If at any time you should get stuck, just press 9 again to make the submarine appear. Your points build up as you press a key and the aim is to get the lowest number of points. Happy hunting! Lines Action 40- 170 Initialising and screen build up 300- 320 Moves ship 350 Gives help if you go over 100 400- 430 Sonar 450 Initiate torpedo warning 500- 550 Set depth charge and launch 610- 620 Prints submarine (help) 700- 730 Charge descends 740- 820 Submarine destroyed 830- 895 Score diplay 900- 930 Charge exploding 1000-1130 Instructions 2000-2086 Graphics 3000-3090 Torpedo warning and ship sinking