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DarkBASIC Professional Discussion / Help tying to recreate classic ZX Spectrum F1 game

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DemonHill
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Posted: 16th Apr 2014 01:26 Edited at: 16th Apr 2014 01:29
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I am trying to recreate this classic

http://www.youtube.com/watch?v=KzIDspcZYU0&feature=youtube_gdata_player

Fast forward video to the race section......

But I can't figure out hot to make the cars sprite scroll from right to left, with gaps and then reposition for next lap.

Do I create 24 sprites and display them (most off to the right) or do I use one two cars and swap sprites.

I know it seems simple, just need to know best way of implementing. Help and any code appreciated thx

http://www.grandprixteammanager.com

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Barry Pythagoras
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Posted: 16th Apr 2014 10:42 Edited at: 16th Apr 2014 10:55
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You position the sprites off in the X screen width + 200 for example

Two sprites or more depending on how many cars you want.

Pseudo Code (Not real code)

x1 = screen width + 200 (or car width + 32)

Next Car

x2 = screen width + 400 (or you can wait until the other car has moved and make it 200 again).

Move them by positioning the sprites x1 = x1 - 1

or

x1# = x1# - 0.1

To get the speed right

Height is Y1 + 200 for example

If you want to keep it old style use increments of 8 pixels all the time. Draw cars to fit 8 pixel increments.
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Virtual Nomad
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Location: SF Bay Area, USA
Posted: 16th Apr 2014 23:17 Edited at: 16th Apr 2014 23:24
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i'd use sprites for each car and do what barry's suggested.

in fact, i'd gone about coding a simple racer similarly, with your thread as inspiration, this morning.

using a single image of a formula race car and setting its diffuse made for cheap and easy variety. ie:


i then went on to prepare sprites based on the footage you'd linked to before i ran out of time to do more with this today:



you're welcome to them.
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DemonHill
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Posted: 17th Apr 2014 12:19
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@ Virtual, you absolute star, many thanks

http://www.grandprixteammanager.com

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Kevin Picone
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Posted: 18th Apr 2014 06:32 Edited at: 18th Apr 2014 06:35
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can remember seeing a few tutorials on creating Out Run / Pole Position styled games.

Here's one
Lou's Pseudo 3d Page

How to build a racing game(June 22, 2012)


Convert PlayBASIC To Machine Code
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DemonHill
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Posted: 22nd Apr 2014 11:37
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@ Virtual, care to share some more code ?

http://www.grandprixteammanager.com

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