Destroyer Assault Design Document Version 1 0 Rami Hamadeh and Brandon Hansen 2002 December 17 2002 University of Michigan Dearborn Dr Bruce Maxim CIS 487 Fall 2002 0 Destroyer Assault Table of Contents Game Overview Game Mechanics Overview Camera Position User Interface Design Replaying and Saving Control Summary Game Play Details Cut Scenes Storytelling Levels Artificial Intelligence Opponent AI Game Elements Items Character Bibles Story Overview Storyboard Background Plot Summary Game Progression Setting Introduction Flowchart Level and Scene Details Bibliography Partner Contribution 1 1 1 1 1 1 1 1 2 2 2 4 4 5 5 5 7 7 8 9 9 9 10 11 16 17 Overview Destroyer Assault is an action game with a stationary player and a scrolling background The player is in control of the USS Microship and is supposed to protect the harbor at all costs The user will have to have quick hand eye coordination and a good sense of timing to hit the planes and submarines that the Japanese bring to bomb the harbor Destroyer Assault is set in December of 1941 near the coast of Pearl Harbor The game starts with you becoming the commanding officer on the USS Microship and you have to save the day The player will have to go through increasingly difficult levels to complete the game Game Mechanics Overview Destroyer Assault is a third person floating camera 2D action game The controls are set up in a way to be simplified to 2 hands on the keyboard Our key placement gives the user a comfortable feeling when navigating through the game play Camera Position The camera is positioned to the side of the battle in a third person view of the harbor Since the battle does not scroll the camera is fixed in position User Interface Design The interface is made to use both hands on the keyboard There are also instructions on how to restart or exit the game after the user has either won or lost To restart the game the user will press the spacebar and to exit the user can always press escape Replaying and Saving Our game allows the user to replay the whole game at any period during the game There is no save option since the player must complete all missions in a row without pausing Since the player can t save we expect the replay value to be high because they can t keep saving every time another plane or submarine is destroyed Control Summary The USS Microship is controlled by the keyboard using the arrows Z and X keys The arrows will move side to side The Up arrow will use the turret gun to shoot The Down arrow will release a depth charge Game Play Details In Destroyer Assault you are in command of the USS Microship an advanced World War II Destroyer ship You will encounter many enemies including submarines and fighter planes The objective of the game is to destroy the enemy or be destroyed 1 Destroyer Assault To destroy a submarine swimming below the USS Microship must strategically drop depth charges towards the submarine It takes one shot to destroy the submarine To destroy a fighter plane that is flying overhead the USS Microship must aim its turret and shoot at the enemy fighter planes It takes one shot to destroy the enemy fighter Beware that if 2 planes crash into you you will be destroyed Once all of the enemies are destroyed the level is completed Then another wave of Japanese Navy attack will come at you The player will progress through these levels as enemies become more intent on passing you by There are five levels in the game and all are described in the level outlines section below The levels will look somewhat similar with the exceptions of the sky texture and the background music The USS Microship will be towards the middle of the screen Enemy fighter planes will fly above and enemy submarines will swim below the USS Microship Also the score and the current level number are displayed on the screen at all times Cut Scenes In Destroyer Assault there are the levels separated by short introductions This gives the user a chance to take a break in between the combat The game will continue when the user presses the spacebar The introductions to each level tell more and more about the story and what is needed to be done to complete the level Storytelling In Destroyer Assault the storytelling is restricted to the introduction and the cutscenes which tell the user what is happening There are some sounds that will notify the user when they have completed or failed the level By controlling when the cut scenes are passed by letting the user hit the spacebar we can give them the option to see the entire story or pass it by Levels Level 1 Small submarines attack below the destroyer The USS Microship must time the release of her depth charges so that they will strike the enemy submarines If 3 submarines pass by unsunk the player loses and must try again If at least 10 submarines are destroyed then you have survived the first wave of attack from the Japanese Level 2 The Japanese send Hayate Hurricane Fighter planes on a reconnaissance mission You must aim and destroy at least 10 of these planes before 5 pass by overhead It takes 1 shot to take down these fighter planes Level 3 The third wave of Japanese attack mixes both submarines and fighter planes You must be quick and decisive If 5 enemies get by without being destroyed you lose You must destroy at least 15 enemy units in order for the Japanese to fall back 2 Destroyer Assault Level 4 The fourth wave of attack is similar to the third except this time there are many more enemy units on the way You must destroy at least 20 enemy units out of the 25 units Level 5 USS Microship still stands Beware of the Kamikaze fighters however The Japanese have decided to go all out to try to bomb the harbor You must wipe out all of the enemy units in order to save the harbor 3 Destroyer Assault Artificial Intelligence Opponent AI The opponents will be randomly drawn at different heights and different velocities for each level The AI will continue in a straight line to the other side of the screen or until it is destroyed 4 Destroyer Assault Game Elements Items Depth Charge These are fired from your boat into the water to destroy the oncoming submarines You can fire 3 of these projectiles before you must reload Turret Ammo These projectiles are fired from your boat into the air to shoot down the enemy aircraft Only two of these projectiles can be fired before having to reload Character Bibles Your ship You re carrying a canon with shells that can hit planes and depth charges that can hit
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