Search found 3131 matches
- Tue Jan 04, 2022 10:35 am
- Forum: SGDK
- Topic: Sega Genesis Dev Kit (SGDK)
- Replies: 852
- Views: 1192867
Re: Sega Genesis Dev Kit (SGDK)
The first problem I see in your code is the way you handle string in C. String requires a NULL ending character so you always need to allocate one extra character in your variable. Also you don't need to specify it when using strxxx methods as it does add it for you, so correct code is as follow : /...
- Sun Jan 02, 2022 9:12 pm
- Forum: SGDK
- Topic: Sprites map are not compressed in VRAM
- Replies: 1
- Views: 6357
Re: Sprites map are not compressed in VRAM
SGDK does not handle the duplicate / flip optimization on sprite tiles for various reasons. It's much more tricky to handle as the optimization can work only on (hardware) sprite basis and so they should have the same size. It can somehow work if you fix the sprite size and also for single hardware ...
- Tue Dec 14, 2021 8:14 pm
- Forum: SGDK
- Topic: Disable automatic animations for statically loaded sprites
- Replies: 3
- Views: 6137
Re: Disable automatic animations for statically loaded sprites
Well, that shouldn't give specific troubles, as soon you use the setVRAMTileIndex(..) according to it.
But if your sprite sheet only use a single row, be careful to not use more than 256 frames then.
But if your sprite sheet only use a single row, be careful to not use more than 256 frames then.
- Wed Dec 08, 2021 10:13 pm
- Forum: SGDK
- Topic: Disable automatic animations for statically loaded sprites
- Replies: 3
- Views: 6137
Re: Disable automatic animations for statically loaded sprites
I'm not sure of what you're doing exactly.
You said you have all your sprites are presented in a single row ? I don't understand, that means the sprite->animInd is always 0 ?
Also "statically" loaded sprites also require the use of setFrame(..) method at same time you're doing the setVRAMTileIndex(..)
You said you have all your sprites are presented in a single row ? I don't understand, that means the sprite->animInd is always 0 ?
Also "statically" loaded sprites also require the use of setFrame(..) method at same time you're doing the setVRAMTileIndex(..)
- Mon Dec 06, 2021 4:01 pm
- Forum: SGDK
- Topic: help with black screen
- Replies: 8
- Views: 11179
Re: help with black screen
Note that recent SGDK version are also more stable in general, so here depending on which version you are, you may also work with the old SGDK bugs too :-/
- Sun Dec 05, 2021 9:32 pm
- Forum: SGDK
- Topic: Sega Genesis Dev Kit (SGDK)
- Replies: 852
- Views: 1192867
Re: Sega Genesis Dev Kit (SGDK)
Hi, Your code is correct :) If your IMAGE isn't compressed then Map *mymap = unpackMap(background.map, NULL); will still work as in case there is no compression unpackMap will do a simple copy and allocate destination if set to NULL so you should even keep the MEM_free(mymap); But i'm speaking about...
- Sun Dec 05, 2021 2:27 pm
- Forum: SGDK
- Topic: Sprites are not loaded in new version SGDK
- Replies: 4
- Views: 7245
Re: Sprites are not loaded in new version SGDK
Oh sorry the method is called SYS_doVBlankProcess() !
- Sun Dec 05, 2021 2:26 pm
- Forum: SGDK
- Topic: help with black screen
- Replies: 8
- Views: 11179
Re: help with black screen
To be honest handling correctly soft reset without resetting everything can be tricky, it's easy to miss some uninitialized variables !
- Sat Dec 04, 2021 10:21 pm
- Forum: SGDK
- Topic: help with black screen
- Replies: 8
- Views: 11179
Re: help with black screen
I will say it's probably an issue with variable initialization / initialized state.
But why just don't do a "hard reset" on completion ? so you're sure to restart in a perfect initialized state
But why just don't do a "hard reset" on completion ? so you're sure to restart in a perfect initialized state
- Sat Dec 04, 2021 10:18 pm
- Forum: SGDK
- Topic: Sprites are not loaded in new version SGDK
- Replies: 4
- Views: 7245
Re: Sprites are not loaded in new version SGDK
The Changelog give some tips about required changes when updating to a new SGDK version.
Version 1.6 required a major update in the code:
Change all VDP_waitVSync() references by VDP_doVBlankProcess().
You may have others issues but i think this one is the most important one
Version 1.6 required a major update in the code:
Change all VDP_waitVSync() references by VDP_doVBlankProcess().
You may have others issues but i think this one is the most important one
- Wed Nov 03, 2021 8:40 am
- Forum: SGDK
- Topic: Sky Gradients?
- Replies: 5
- Views: 7424
Re: Sky Gradients?
I should have replied here as this is definitely a SGDK solution that I propose here :p So you should declare your H-Int function like this: void hint() { PAL_setColor(0, gradientColor); gradientColor-= 0x100; } Then prepare your H-Int gradient effect using this from your main code: // each 4 lines ...
- Tue Nov 02, 2021 2:23 pm
- Forum: Video Display Processor
- Topic: Palette color switching in HBlank
- Replies: 14
- Views: 23729
Re: Palette color switching in HBlank
Declare your H-Int function like this: void hint() { PAL_setColor(0, gradientColor); gradientColor-= 0x100; } Then prepare your H-Int gradient effect using this from your main code: // each 4 lines VDP_setHIntCounter(4); // enable H-Int VDP_setHInterrupt(TRUE); // set H-Int callback method SYS_setHI...
- Sun Oct 24, 2021 2:38 pm
- Forum: SGDK
- Topic: Weird things with very basic code
- Replies: 3
- Views: 5552
Re: Weird things with very basic code
Hi, Just seeing your post sorry, indeed the sprite engine is meant to be used through the SPR_xx methods, don't directly modify internal fields (maybe except spr->timer in some situation) or you may screw some internal states of the sprite. Just use SPR_xx for all sprite manipulations and it should ...
- Thu Aug 26, 2021 10:04 pm
- Forum: SGDK
- Topic: 68k based PCM Audio mixer for YM2612
- Replies: 7
- Views: 9396
Re: 68k based PCM Audio mixer for YM2612
Writing a Z80 sound driver is probably one of the most difficult part when developing game for the system to be honest.
Did you had a look on existing Z80 driver from SGDK ? otherwise you can try to publish here the specification of the driver you need and hire someone to do it for you.
Did you had a look on existing Z80 driver from SGDK ? otherwise you can try to publish here the specification of the driver you need and hire someone to do it for you.
- Thu Aug 26, 2021 9:53 pm
- Forum: SGDK
- Topic: Bank switching with SGDK
- Replies: 6
- Views: 15946
Re: Bank switching with SGDK
SGDK does support bank switching but using the official sega mapper (also called SSF2 mapper). So it switches 512 KB banks and bank 0 is fixed. SGDK can handle that almost all automatically for you in which case it access banks above 4 MB through the 3MB-4MB region. If you want to use your own bank ...