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Bit of a newbie error I guess, but I've had a good look and can't figure out what I'm doing wrong.

Anyhow, the below code should display the background (a fetching orange number), and the sprites (a white square and a black sqaure). But the sprites aren't on show. So any help with what I'm doing wrong would be appreciated.

Thanks!

Code:

#include "gba.h"
#include "bg.h"
#include "bship.h"
#include "wship.h"

void InitializeSprites(void);
void CopyOAM(void);

OAMEntry sprites[128];

int main()
{

u16 loop;

SetMode(MODE_4 | BG2_ENABLE | OBJ_ENABLE | OBJ_MAP_1D);

for(loop = 0; loop < 256; loop++) {
OBJ_PaletteMem[loop] = bshipPalette[loop];
}

for(loop = 0; loop < 256; loop++) {
OBJ_PaletteMem[loop] = wshipPalette[loop];
}

for (loop = 0; loop < 256; loop++) {
   BG_PaletteMem[loop] = bgPalette[loop];
}

for (loop = 0; loop < (120*160); loop++) {
   FrontBuffer[loop] = bgData[loop] ;
}

memcpy( (u16 *)0x06014000, &bshipData, sizeof(bshipData) );
memcpy( (u16 *)0x06014100, &wshipData, sizeof(wshipData) );

sprites[0].attribute0 = COLOR_256 | SQUARE | 64;
sprites[0].attribute1 = SIZE_64 | 64;
sprites[0].attribute2 = 512;

sprites[1].attribute0 = COLOR_256 | SQUARE | 128;
sprites[1].attribute1 = SIZE_64 | 128;
sprites[1].attribute2 = 512 + 8;

while(1)
{
   WaitForVsync();
   CopyOAM();
}

return 0;

}

void InitializeSprites(void)
{
u16 loop;
for(loop = 0; loop < 128; loop++) {
   sprites[loop].attribute0 = 160;
   sprites[loop].attribute1 = 240;
}
}

void CopyOAM(void)
{
u16 loop;
u16* temp;
temp = (u16*)sprites;
for(loop = 0; loop < 128*4; loop++) {
   OAM_Mem[loop] = temp[loop];
}
}

Edit: I should of also added that there are no warnings at complie time.

No OBJ palette?

-Brendan

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Beginners > Sprite display problem...

#115350 - markfgilmore - Mon Jan 15, 2007 1:33 pm

#115371 - sgeos - Mon Jan 15, 2007 5:48 pm