#125270 - Codeninja - Thu Apr 12, 2007 2:31 pm
Okay I've spent all day looking around for a solution to what I'm guessing is a pretty easy and pretty n00by bug to fix but I've given in to the shame of making a thread to receive some help to my problem. Anyones the problem is the sprite just doesn't display correctly.
The picture linked here should pretty much explain the problem and allow anyone who has a solution to help me.
The code is as above - is there something wrong with my code or with my creating of the image file? Because I'm not entirely sure how I'm supposed to use gfx2gba... I used it with the following line for the sprite
gfx2gba -t8 ship.pcx
and used the master.pal and ship.raw files I got from that in my little test and it didn't turn out too good. As you can tell.
Any help would be appreciated, thank you very much for your time.
The picture linked here should pretty much explain the problem and allow anyone who has a solution to help me.
| Code: |
| public:
void UpdateOAM(SpriteEntry * spriteEntry){ DC_FlushAll(); dmaCopy(spriteEntry,OAM,128 * sizeof(SpriteEntry)); }; void InitOAM(SpriteEntry * spriteEntry, SpriteRotation * spriteRotation){ // For all 128 Sprites on the DS, disable and clear any attributes they // might have. This prevents any garbage from being displayed and gives // us a clean slate to work with. for(int i=0;i<128;i++){ spriteEntry[i].attribute[0] = ATTR0_DISABLED; spriteEntry[i].attribute[1] = 0; spriteEntry[i].attribute[2] = 0; } // For all 32 Possible sprite rotations, set them to default values for(int i = 0; i < 32; i++){ spriteRotation[i].hdx = 256; spriteRotation[i].hdy = 0; spriteRotation[i].vdx = 0; spriteRotation[i].vdy = 256; } this->UpdateOAM(spriteEntry); }; void MoveSprite(SpriteEntry * spriteEntry, u16 x, u16 y){ spriteEntry->attribute[1] &= 0xFE00; spriteEntry->attribute[1] |= (x & 0x01FF); spriteEntry->attribute[0] &= 0xFF00; spriteEntry->attribute[0] |= (y & 0x00FF); }; void RotateSprite(SpriteRotation * spriteRotation, u16 angle){ s16 s = -SIN[angle & 0x1FF] >> 4; s16 c = COS[angle & 0x1FF] >> 4; spriteRotation->hdx = c; spriteRotation->hdy = -s; spriteRotation->vdx = s; spriteRotation->vdy = c; }; void InitSprites(SpriteEntry * spriteEntry, SpriteRotation * spriteRotation){ // init OAM this->InitOAM(spriteEntry, spriteRotation); Coordinate position; position.x = SCREEN_WIDTH/2-64; position.y = SCREEN_HEIGHT/2-64; // create the ship sprite int spriteZeroID = 64; spriteEntry[0].attribute[0] = ATTR0_COLOR_256 | ATTR0_ROTSCALE_DOUBLE | ((int)position.y & 0x00FF);//able to rotscale spriteEntry[0].attribute[1] = ATTR1_ROTDATA(0) | ATTR1_SIZE_64 | ((int)position.x & 0x01FF); // size: 64 x 64 spriteEntry[0].attribute[2] = spriteZeroID; RotateSprite(&spriteRotation[0],0); dmaCopy(master, (uint16 *)SPRITE_PALETTE, (uint32)master_size); dmaCopy(ship, &SPRITE_GFX[spriteZeroID * 16], (uint32)ship_size); // update the OAM this->UpdateOAM(spriteEntry); }; }; |
The code is as above - is there something wrong with my code or with my creating of the image file? Because I'm not entirely sure how I'm supposed to use gfx2gba... I used it with the following line for the sprite
gfx2gba -t8 ship.pcx
and used the master.pal and ship.raw files I got from that in my little test and it didn't turn out too good. As you can tell.
Any help would be appreciated, thank you very much for your time.