Interactive Adventure GameGreg LuthmanAkash ShahOverview• Inspiration: Super Mario Brothers• Goal: create a side scroll adventure game that puts the player into the game world. – A live action, side scroll adventure game– Instead of playing with a controller and seeing a character move on screen, everything is controlled by the player's actions in front of a camera. – Use the video of the player to determine the proper commands to send to the game– The player will be able to duck objects, jump over objects, move forward or backward in the game world.Video A/DGreen ScreenCharacterGesturesOverlayVGA outGameMain FSMCharactersPhysicsWorld StatevcounthcountnewlinenewframeCtrl signalsscalexscaleytranxtranyhcountvcountpixel_onchar_pixelhcountvcountvcounthcounthcountvcounthcountnewlinenewframevcountgame_pixelresetcalibrateYCrCbToRGB52430YCrCbZBTRGBread_addrwrite_addrdindoutweRGB out2424Video Subsystem Breakdown• Video in: Handles the video that is being input from the camera into the labkit.• Green Screen Module– Handles detection of the green screen background– Allows for an overlay that replaces the background color with the virtual game world.– The module will allow for handling of variations in intensity and colorVideo Subsystem Cont’d• Character Module – Utilizes the green screen module – Determines the location of the character on the captured image. • Gesture Recognition– Recognizes simple gestures that the player may choose to execute. – A group of control signals denote which actions have been madeVideo Subsystem Cont’d• Overlay– Overlays incoming filtered video feed with game environment• VGA Output– Outputs the VGA signal to the monitorGame Subsystem• Frame Buffer– 240 x 256 resolution, 9-bit pixel data (fits onto BRAM)– Can only write when vcount is off screen to avoid glitchy looking graphics• Background Generator– Updates the frame buffer using data from the level rom and the tile memory– U ses “left_pixel” from FSM to determ ine w here the screen is in the game worldG am e Subsystem cont’d• Tile Memory– Holds 64 tiles– Each tile is 16 x 16 • Level ROM– Game world is 15 tiles high by 256 tiles long– Given a row and a column, will return which type of tile is in that spotG am e Subsystem cont’d• Sprite RAM– Holds data for 16 different sprites– X-coordinate, y-coordinate, and data about the sprite (tile type, sprite state, ect.)• FSM– Updates and draws the sprites into the Frame Buffer after the Background generator– Detects collisions between sprites, the player, and the background – Does all physics calculationsTimeline• Last Week– Camera Working– Chroma Key– Frame Buffer 100% finished– Background Generator working• This Week– Character Recognition– Background Generator 100% finished– Level ROM, Tile memory workingTim eline cont’d• Next Week (before Thanksgiving)– Simple Gestures– Sprite RAM working• First Week of December– Gestures finished– FSM 100% finished– Background tiles finished (.coe 50% finished)Tim eline cont’d• 2ndWeek of December– Sprite tiles finished (.coe files 100 % finished)– Testing integrated system• Just in Case Weekend– Debugging– Extras (if
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