SpritesMind.Net

I had an issue in my project for a while where the game would hang between room transitions (fading). It would only happen on hardware, not emulators (except BlastEm) which reported Read from VDP data port while writes are configured, CPU is now frozen. VDP Address: 2, CD: 5 it looks like the proble...

Here is the usual algorithm for detecting if 2 rectangles overlap: if (RectA.X1 < RectB.X2 && RectA.X2 > RectB.X1 && RectA.Y1 < RectB.Y2 && RectA.Y2 > RectB.Y1) Your code is not taking the size of the rectangles into consideration, so the function will only set "Overlap" to true if the 2 sprites are...

Does the GDK environment variable end with a forward slash '/'?

And also GDK_WIN with a backwards slash '\'?

It looks like the tool is not adding an extra slash to the end when one doesn't already exist in the variable.

ehaliewicz wrote:What you really want is some sort of profiler.

As far as I know the closest thing gennydev has to profiling is random gdb pausing and timing with Kdebug.

I hope I'm wrong though.

the modulus opoerator won't work right with fixed point numbers, have to convert to int first.

Looking through the VRAM in Gens KMod, each time the title screen is reloaded, it loads a copy of itself further down. Eventually, this clashes with the sprite table, then the font, and finally the planes: https://my.mixtape.moe/idchbm.png https://my.mixtape.moe/vflipp.png https://my.mixtape.moe/mfr...

Could it be the sprite is not being released? SPR_releaseSprite() or alternatively SPR_reset() to kill them all. EDIT: Also there is this "ind" variable I see being used to send tiles to VDP. Do you reset this to a default value when restarting the menus? What does the issue look like exactly? Are t...

Gonna have to keep in mind the search on github is buggy

Not sure what else could be going wrong other than maybe the object files in libmd weren't being regenerated.

Actually, it appears sqrttab16 is declared but not defined (at least in master)

https://github.com/Stephane-D/SGDK/sear ... =sqrttab16

https://github.com/Stephane-D/SGDK/sear ... BIG_TABLES

Rebuilt the lib?

SPR_addSprite returns a pointer, so define sprites as

Sprite *sprites[2];

Then when passing sprites don't use a reference since it is already a pointer.

SPR_setAnim(sprites[0], ANIM_LOGO);

Post code and error log?

Maybe confusing Sprite with SpriteDefinition or need to pass a reference like &mySpriteDef.

Great, now it works perfectly! Keeping the old libmd.a around in case I want to entertain myself again

Best way to describe this is with code. // Load 2 large sprites (bigger than 4x4) Sprite *spr[2] = { SPR_addSprite(&SPR_Igor, 80, 80, TILE_ATTR(PAL2, 1, 0, 0)), SPR_addSprite(&SPR_Balfrog, 160, 80, TILE_ATTR(PAL3, 1, 0, 0)) }; // Release and re-add first one SPR_releaseSprite(spr[0]); spr[0] = SPR_a...

Certainly liking the look of the improved sprite engine! In my porting over to the new version, stumbled into this: /opt/toolchains/gen//m68k-elf/lib/libmd.a(sys_a.o): In function `SYS_hardReset': (.text+0x1c): undefined reference to `_hard_reset' collect2: error: ld returned 1 exit status Makefile:...