Wow. That sounds amazing! I love the initial tune before the game starts!
Your ports just keep getting better and better, Kees.
Sam.
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| Atomic Galaforce Update http://www.retrosoftware.co.uk/forum/viewtopic.php?f=78&t=736 |
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| Author: | oss003 [ Sun Feb 12, 2012 10:15 pm ] |
| Post subject: | Atomic Galaforce Update |
At last ..... an update for Galaforce for the Acorn Atom. I added FX-sounds and music. The TODO list is now: - Adding Joystick support - Testing levels/patterns You can find a video at: http://www.youtube.com/watch?v=tsaApN-uG-U Greetings Kees |
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| Author: | Samwise [ Mon Feb 13, 2012 1:06 am ] |
| Post subject: | Re: Atomic Galaforce Update |
Wow. That sounds amazing! I love the initial tune before the game starts! Your ports just keep getting better and better, Kees. Sam. |
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| Author: | DavidB [ Tue Feb 14, 2012 12:10 am ] |
| Post subject: | Re: Atomic Galaforce Update |
Some fast and furious gameplay there! The sounds are interesting: I see you generate the waveforms yourself - very impressive! 
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| Author: | Samwise [ Tue Feb 14, 2012 12:26 am ] |
| Post subject: | Re: Atomic Galaforce Update |
Perhaps also worth reminding people that Kees is doing a sterling job of keeping his Atomic Galaforce development diary up to date, which is a fascinating read.  Sam. |
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| Author: | oss003 [ Tue Feb 14, 2012 1:03 pm ] |
| Post subject: | Re: Atomic Galaforce Update |
DavidB wrote: I see you generate the waveforms yourself - very impressive! Thank you ... .. but on an Atom it's a necessary evil to get sound.The Atom only has a beeper connected to a bit so generating sound is not easy and takes a lot of CPU time. I am testing to generate 2-voice sound with programming the 6522 VIA to relieve the processor. Channel1: Program the shiftregister to shift out continuous patterns using T2 on CB2. You can write 00001111 or 00110011 or 01010101 to get a squarewave Channel2: Program T1 to generate continuous squarewaves on PB7 Connect the 2 bits together (with a resistor) and feed it into an amplifier. This way you only have to change T1, T2 or the shiftregister to get a different note without consuming CPU time. Should also work on a BBC  Greetings Kees |
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| Author: | DaveM [ Tue Feb 14, 2012 1:06 pm ] |
| Post subject: | Re: Atomic Galaforce Update |
Two channel sound on an Atom? Now that would be something!! |
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