SpritesMind.Net

How to erase the tiles of the vram of plan A or B?
VDP_clearPlane simply clear the screen, the tiles are still in vram.

I just want to delete the tileset from the vram that I no longer need to load the next level tileset.

If anyone can help me or give me hints.
thank you

Thanks for the answer, it works !!

Hello, another question I have a sprite that won't be erased, i am using the SPR_releaseSprite () function, this sprite is initialized when the player presses a button and i want to delete it when the player presses another button. When I pass all my other sprites as a parameter, no problem it all g...

I expressed myself badly, indeed I want to do this operation during a Vblank, in fact I want to slide the camera of X pixel. if I do it outside of Vblank,the camera immediately goes to the position but I tested in a Vblank period and it seems to work, I find it a bit risky to do it in a for loop enu...

I have another question regarding the Vblank period, can I use
if (SYS_doVBlankProcess ()) in a function to perform an operation after Vblank period. I tested it looks good but I want to be sure it won't be a source of problem.

Ok, thanks for the answer, in the meantime I found a solution: and indeed I test the tiles where the player is. if( posx%8 >4 ){ tile_x = ((posx - psox%8)>>3) +1} else tile_x = ((posx - psox%8)>>3) if( posy%8 >4 ){ tile_y = ((posxy - psoxy%8)>>3) +1} else tile_y = ((posxy - psoxy%8)>>3) test_collisi...

Hello, I have a small problem with the recovery of the tile at the player's position for collisions. I get the tile this way : pos_x = player.x >> 3, pos_y = player.x >> 3 (division by eight) the variables player.y and player.y, pos_x and pos_y are declared in u16 To increment player.x and player.y ...

At the risk of saying something stupid,
If you are using a MAP resource on the A or B plane, there is a function," u16 MAP_getTile(Map*map, u16 x, u16 y) " in file " Map.c " maybe do a comparison with the return value and the tile index which you can find with dump VRAM with K-mod

Thanks, I'll take your advice and watch this.

No one to help me! I will wait, there is someone who will come :D . In the meantime I observed SPR_Update () sprite_eng.c to try to understand this part: // handle frame animation if (timer) { // timer elapsed --> next frame if (--timer == 0) SPR_nextFrame(sprite); // just update remaining timer els...

Thank you for the information,
it's not falling on deaf ears !!

Apparently, we need to update the sprite position coordinates according to the Camera, I just wrote a function to handle that and it works fine. Other questions, I looked for on the forum but the subject is only partially addressed. I have a problem to stop an animation on the last frame, I thought ...

Hello, I would need confirmation, if I understood correctly, Plane A and B can scroll vertically and horizontally and the sprite plane is fixed. For the coordinate system, the reference point is the coordinate 0,0 of (top left of the screen). When the BGs scroll, I have to update a variable which si...

It's resolved with sprintf(), I had not seen this function.

Hello, I am new to the forum that I have already been browsing for a few weeks, I thank the author of this bookstore (SGDK) who opened the doors to me to programming on Megadrive in C Language, as well as all the participants / members of this forums that enrich this section of the forum, it helps a...