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Forum Index : Microcontroller and PC projects : WebMite and PicoMite firmware release V5.07.07
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| matherp Guru  Joined: 11/12/2012 Location: United KingdomPosts: 9129 |
Yes. Use FRAMEBUFFER LAYER in the VGA version to create a true second layer Re something else you commented on. You should never see artifacts when moving sprites IFF you move them in the right order. i.e. if you place one sprite on top of another then move the bottom one when you then move the top one you will get an artefact. If necessary use SPRITE SHOW SAFE and SPRITE HIDE SAFE or code to always hide then restore the sprites in order (performance impact though). The safe commands use a LIFO to achieve this. So show sprite 1 show sprite 2 overlapping 1 I now want to move 1 so: hide 2 show 1 in new location show 2 in original location NB: none of this applies to the PicoMite or WebMite. SPI displays are too slow (particularly in reading) to implement sprites in any useful way without a memory framebuffer and this would be too large for the Pico Memory |
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| Volhout Guru Joined: 05/03/2018 Location: NetherlandsPosts: 4247 |
Hi Peter, Thank you for this information. If I where to write a new game, this would be the way to do it. The MAXITREK game is not set up to do this very well. There are several locations in the code where sprites are drawn and removes and moved. And lines (simulating laser beams) are drawn in the same plane at random times. There is no overall sequencer, everything depends on PAUSE and SETTICK times with counters. (i.e. syncronisation audio = settick + counters, synchronisation video is PAUSE based, except when events happen, then it is also SETTICK driven). This is all tuned on the speed the CMM1 has, and with pico the time for processing statements between the PAUSE is different. So... imagine... Most anoying are the reboots. I don't know what went wrong. So I can't even ask for help here. Second anoying is the OPTION LEGACY ON that translates some commands (LINE/CIRCLE) and allows for color numbers. But some it does not convert (sound and sprites for instance). It is an adventure, and I will finish it. But it costs...a lot of time... Volhout PicomiteVGA PETSCII ROBOTS |
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Martin H. Guru Joined: 04/06/2022 Location: GermanyPosts: 1114 |
Maybe, it is easier to look, what those Maximite special routines do and rewrite those parts for the Pico. Edited 2023-07-31 22:45 by Martin H. 'no comment |
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vegipete Guru Joined: 29/01/2013 Location: CanadaPosts: 1109 |
Would an optional modifier to the LINE command that performs an XOR be useful (and possible?) Draw the line the second time, and it is erased, if nothing was changed underneath it. Visit Vegipete's *Mite Library for cool programs. |
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