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Dave Neuman

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Blog Entries posted by Dave Neuman

  3. Dave Neuman
    I found a video my wife shot of our basement arcade a year or so ago. Pole Position was giving me some trouble at the time so the screen is a blank raster. I moved a few more games down there since then and will make another video this week of my current setup.http://www.youtube.com/watch?v=sVvBUWFPKgoArcade Tour 11/16/2009 below:http://www.youtube.com/watch?v=iwACFWJ59cU
  4. Dave Neuman
    It's been forever since I have done any work on this project, but I had some time last night and changed the title screen a little bit. Not much else has been changed, but I'm getting some free time here and there, so hope to work on it some moreNew9_8_09.bin
  5. Dave Neuman

    Planet Builder Update

    By Dave Neuman,

    I've added a couple of elements to the game. After landing on the planet you must retrieve and send 7 minerals to the mother ship to build the planets atmosphere. When the atmosphere has changed from black through reds to blue your ship will blast off to dock with the mother ship. After successful docking you proceed to land on the next planet.
     
     
    New9_24_08.bin
     
    New9_25_08_slow.bin
     
    New9_25_08_borg.bin
     
    New9_25_08_test.bin
     
    Cleaned up graphics a little on RCV screen
     
    New9_26_08.bin
     
     
     
     

  6. Dave Neuman
    It's been quite a while since I posted progress on "Planet Builder" ... work seems to get in the way of fun. The planetary processing station orbiting above now combines two sprites to make one. It looks kinda like a bus in the sky ... I need to make something much better looking. The planetary collection Rover can only transport up the mineral for processing after it has been collected. A new mineral becomes available for collection only after the collected mineral has been transported. Graphical glitches and frame count issues have not been resolved as of yet. Just having some fun with it when time permits.
     
    New4_14.bin
     
    A couple of bug fixes including steady framerate. Still need many more gameplay elements.
     
    New4_15.bin
  7. Dave Neuman
    I haven't really worked much on this lately, but I had a couple of thoughts on game play.
     
    The premise is that you are a Terra former and land on this barren planet to create an atmosphere.
    You cruise around looking for raw materials to beam up to the automated atmospheric processors flying overhead.
    You must match the raw material with the correct processor or it will explode. The planet begins to form an atmosphere and some land based atmospheric domes as you process more correct raw materials. If you process the wrong materials the planet will be destroyed.
     
     
     
    New10_2.bin
    New11_13.bin
  8. Dave Neuman
    I didn't like the original code for the Big Dipper so I used a standard delay loop. It saves space but it does not give the same effect. Here is the first bin which shows a fairly good depiction of the Big Dipper.
    BackStars8_8_07.bin
     
    Here is the alternate code ... saves space but doesn't look as good.
     

    ;Show Big Dipper LDA #2 ;used to enable missile LDX #7 ;Number of stars BigDipperLoop LDY StarTable,X ;get delay for loop (star placement) STA WSYNC ;always start loop at same time ;Delay loop positions stars DipperDelay DEY BNE DipperDelay STA ENABL ;Turn missile on STY RESBL ;strobe missile position DEX STA WSYNC STA WSYNC STY ENABL ;Turn missile off BNE BigDipperLoop ;Start loop over StarTable .byte 10,8,5,9,8,7,6,9
    This bin shows a less desireable depiction of the Big Dipper as coded above.
    BackStars8_11_07.bin
     
    This bin looks a little better for only a couple of bytes
    BackStars8_12_07.bin
     
    Here is another approach for displaying stars using the Cosmic Ark trick, but only turning on selected stars.
    BackStarsBall9_24_07.bin
  9. Dave Neuman

    New Game

    By Dave Neuman,

    I'm a rookie programmer, but I think it may be fun to document a new game as it develops. I was looking at a Popular Science magazine cover and saw a picture of a moon buggy prospecting for valuable minerals. Sounded like a game to me. Probably a little too much like Moon Patrol, but seems like it may be fun.
     
    I used Space Battle as a shell to insert some new code to simulate a buggy cruising around the moon. I utilized some code samples to allow the scrolling playfield to be "perfectly reversible" so as the game develops you will see certain structures and backgrounds in each frame as you cruise around the moon. Attached is the bin if you would like to see the work in progress. Frame rates bounce around and graphics are munged, but you'll get the idea after landing.
     
    New7_12.bin
     
    Maybe you will collect valuable minerals as you race against the oxygen clock.
     
    This one scrolls a little slower.
    New7_12_slow_scroll.bin
  10. Dave Neuman
    It's been a while since I have done any coding. I have added some rudimentary collision detection for the badies. The bombs they drop can destroy the Rover, but you can shoot them as well. The collision detection is not quite right yet though. As you destroy the group of three badies, one of three new badies will reappear. The object is to collect the minerals and send them up to the Amospheric processor in order to "build the planet" As you send more minerals the processor converts them to essential elements and the sky becomes progressively more blue. If you send up the mineral that matches what the processor shows in its hopper, you get more points awarded. You must off course avoid falling in the hole below the mineral, avoid the badies bombs and avoid falling meteors
     
    New5_21_09.bin
  12. Dave Neuman
    Had a couple of minutes, so I changed the code to make the movements left and right continuous. This is supposed to encourage exploration of different screens left and right. You can change direction as before, but you will continue to move in one direction unless you change direction or put on the brakes (down on controller). Different screen only consist of different minerals and various mountains.
     
    New12_31_08.bin
  13. Dave Neuman
    Had a few minutes today so I added a "colorful" explosion when you run out of fuel. Also added a fuel leak if the Rover gets struck by a meteor. Fun factor is not there for game play, but it's still fun coding it so I will continue as time permits. Maybe something fun will develop.
    New12_29_08.bin
  14. Dave Neuman
    I've added some momentum and friction to the left and right movements. It increases the difficulty of stopping in front of the mineral pit and not falling in. I'm not sure if I like it, but I'll keep it in for a while. I still can't get the smooth starfield movement that I want. I'm going back to school in a couple of weeks to finish my degree, so updates will probably be even less than they have been.
     
    New12_17_08.bin
  15. Dave Neuman
    I loaded Planet Builder on my Kroc Cart and the starfield does not have the smooth movement that I want. Not sure where the problem is. Here is my Main Screen kernal where I call the subroutine DrawStars. I use LDA StarTable,Y to turn off and on idividual stars. Any insight into this problem would be appreciated. I'm using FILL_NOPs at Line 777 to pad the code
     
     

    MainScreen SUBROUTINE JSR SixDigitDisplay ;Ship Movement ;--SwitchDraw ; TopLine == top line of sprite ; BottomLine == bottom line of sprite ORed with $80 ; requires scanline counter < $80 (i.e., 128 lines, though you ; can get around this by interlacing your graphics) LDY Mineral_Truck ; Calculate SwitchDraw Variables SEC LDA Ship_YPos STA PSWITCH SBC #C_SHIP_HEIGHT STA PEND ; Subtract Height For SwitchDraw Routine LDA #<Sprite_Data0 SBC PEND STA Ship_Ptr LDA Truck_Tab,Y SBC PEND STA Ship_Ptr+2 ;Continue to Calculate SwitchDraw Variables LDA PEND ORA #%10000000 STA PEND LDX #0 LDA Ship_XPos JSR bzoneRepos STX PF0 ;prevents artifact after (Restore black border..) sleep 10 SEC LDA Ship_ColorPtr SBC Ship_YPos CLC ADC #C_SHIP_HEIGHT-#1 STA Ship_ColorPtr STA WSYNC STA HMCLR LDX #1 SEC LDA Ship_XPos CMP #12 BCS NoAdjust ADC #161 NoAdjust SBC #8 JSR bzoneRepos STA WSYNC STA HMCLR JSR DrawStars LDA #QUAD_SIZE_MISSILE STA NUSIZ0 LDA #SILVER ;Ball(meteor)is color of playfield STA COLUPF TSX ; Transfer stack pointer to X STX SavedStackPointer ; Store it in RAM LDX #ENABL TXS ;--------------------------------------------------------------------------------------------------- ;Top Kernal ;Begin Ship draw loop ;LDY #C_KERNAL_HEIGHT +#C_SHIP_HEIGHT - #1; LDY #127 ;was 151 (Switchdraw maximum height is 127) STA WSYNC ;0 ;--------------------------------------------------------------------------------------------------- ShipLoop ; Draw Sprite (SwitchDraw) CPY PSWITCH ; 3 = 3 BPL PSwitch ; 2/3 = 5 LDA (Ship_Ptr),Y ; 5 = 10 STA GRP0 ; 3 = 13 LDA (Ship_Ptr+2),Y ; 5 = 18 STA GRP1 ; 3 = 21 writes must be finished before cycle 22 to avoid tearing PContinue ;Color for Ship loaded below STY COLUP1 ; 3 = 24 ;Color for Ship loaded below STX COLUP0 ; 3 = 27 ;Draw Truck = 27 ;--------------------------------------------------------------------------------------------------- ;DrawMissile TYA ; 2 = 2 assuming y contains the scanline SBC Missile_YPos ; 3 = 5 carry must be 1 (else use DCP) ADC #C_MISSILE_LENGTH ; 2 = 7 LDA #2 ; 2 = 9 ADC #$FF ; 2 = 11 carry is always set! STA ENAM0 ; 3 = 14 bit 1 depends on the carry after ADC ;EndMissileLoop ;Draw Stars ;Y Has Scanline 127 LDA StarTable,Y ;5 = 19 STA ENAM1 ;3 = 22 waste a cycle ;Drawing Missiles =22 ;--------------------------------------------------------------------------------------------------- ;DrawMeteor CPY Meteor_YPos ;3 Assumes Y is your kernal line counter PHP ;2 LDX #ENABL ;2 TXS ;2 ;EndMeteorLoop ;Drawing Meteors =9 ;--------------------------------------------------------------------------------------------------- ;27+22+9=58 ;Load Color for RCV LDA (Ship_ColorPtr),Y ;5 = 63 TAX ;2 = 65 NOP ;2 = 67 NOP ;2 = 69 DEY ;2 = 71 CPY #48 ;2 = 73 BCS ShipLoop ;3 = 74 ;--------------------------------------------------------------------------------------------------- ; SwitchDraw Routines PSwitch ; 6 bne PWait ; 2/3 = 8 LDA PEND ; 3 = 11 STA PSWITCH ; 3 = 14 SLEEP 4 ; 4 = 18 bcs PContinue ; 3 = 21 PWait ; 9 STA HMCLR ; 3 = 12 SLEEP 6 ; 6 = 18 BPL PContinue ; 3 = 21 EndShipLoop if (>ShipLoop != >EndShipLoop) echo "WARNING WARNING WARNING WARNING: ShipLoop Kernel crosses a page boundary!" endif ;--------------------------------------------------------------------------------------------------- LDA THREE_MED_COPIES ;three buildings STA NUSIZ1 ;place here to minimize vertical missile stretch LDX SavedStackPointer TXS
     
    And here is the Draws Stars Subroutine
     

    DrawStars SUBROUTINE LDA Star_XPos LDX #3 JSR bzoneRepos STA WSYNC STA HMCLR LDA #$70 ;this value is important for the effect STA HMM1 STA WSYNC STA HMOVE SLEEP 16 LDA #$60 STA HMM1 ;this is the tricky part RTS
     
    New11_16_08a.zip
  17. Dave Neuman
    Another minor update here.
    Bad guy on landing screen does a cool looking controlled morphing rotation thanks to Spiceware
    Graphics cleaned up a bit and frame rates a bit more stable.
    To get bonus point match the mineral in the hole to the mineral on the RCV
     
     
    New10_27_08.bin
     

  18. Dave Neuman

    Planet Builder Update

    By Dave Neuman,

    Added color to Ship ... looks psychedelic
     
    New9_27_08.bin
     

     
    A little different look. I'm thinking that matching the shape that's in the storage area of the ship with the mineral extracted would improve the atmosphere. If you picked up the wrong mineral you would be penalized.
     
    New9_27_08.bin
     

  19. Dave Neuman
    It's been a while again since I made an entry, but I added some meteors. The meteors don't have any collision detection yet, but they look kinda cool. The star background only shows on the mess emulator.
    Still need more game-play elements as it's a little boring.
     
    New7_09_08.bin
  20. Dave Neuman
    I added collision detection for the hole. You have to inch up and lower your Rover's bucket to mine the mineral deposit. Apparently, all the minerals on this planet are partially submerged in a dangerous hyper gravity hole that causes immediate destruction if touched.
     
     
    New5_30.bin
  21. Dave Neuman
    I've made a couple more minor changes. Not sure where this is going, but I'm having fun doing it.
    A hole appears randomly with a small mineral above it. The idea is to lower the crane to pick up one of seven different minerals without falling into the hole. After picking up the mineral you must transport it up before picking up another. As you travel you can jump over the hole and avoid falling in. There is no collision detection for the hole yet so you really can't fall in. Landing sequence has multi-colored lander with blinking landing light.
     
    New5_23.bin
  22. Dave Neuman
    I've made a couple of minor changes. The mineral glows when it is avialable for pickup. After pickup the Rover glows to indicate it is ready to transport the deposit up to the orbiting atmospheric processor. I also added a progress bar for the Atmospheric Pressure.
     
     
    New4_24.bin
  23. Dave Neuman
    Been quite a while since I posted anything as I have not had much time for coding. This update shows a starfield in the Title screen, landing sequence and the main screen. Effect only shows up in MESS as I am using missile 1 and Cosmic Ark trick for effect.
     
    New12_28.bin

  24. Dave Neuman
    In keeping with the theme I have attempted to animate the Planet Builders Resource Collection Vehicle (RCV). I used 6 frames of animation for the tank tread movement and 1 frame for the boom mounted collector. Also added some randomly placed minerals, although I have not added the appropriate sprites for them yet. Game is not playable and frame rates are not consistent. Any suggestions for better RCV animation sprites are welcome.
     
    New11_28.bin
     
    RCV Animation below is slightly improved.
     
    New12_03.bin
  25. Dave Neuman
    I wanted to add some stars to the background so I utilized the trick from Cosmic Ark. I then started messing around with the other missile and came up with the Big Dipper. I'm using a different base program for testing as I got tired of going through the landing sequence every time I wanted to check my progress. The positioning code for the stars is pretty kludgey right now, so I'm trying to come up with something more efficient.
     
     
    Background Stars
    BackStars.bin
     
    Different Background Stars
    BackStars8_7_07.bin
     
    Big Dipper Monochrome Background Stars
    BackStars8_8_07.bin
     
    Big Dipper No Background Stars
    BackStars8_10_07.bin
     
    Big Dipper Colored Background Stars
    BackStars8_10_07.bin
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