bool cGrafic::Crear (char *nom)
{
sprite = Sprite_Create (nom);
if (sprite->frame_actual->pixels != NULL)
return true;
else
return false;
}
void Test_Loop( void )
{
sGraphicPos lPos;
S16 lAddX,lAddY;
sSprite * lpSprite;
Screen_Init();
gpPicture = File_Load( "SPRITE.PI1" );
if( gpPicture )
{
Video_SetPalST( &gpPicture->Header.Palette[ 0 ] );
lPos.X = 0;
lPos.Y = 0;
lAddX = 1;
lAddY = 1;
lpSprite = Sprite_Create(
&gpPicture->Pixels[ 0 ],
&gpPicture->Pixels[ 0 ],
16,
16,
4,
0 );
while( !IKBD_GetKeyStatus(eIKBDSCAN_SPACE) )
{
Screen_Swap();
gGraphic.pVRAM = gpLogic;
gGraphic.pFuncs->ClearScreen( &gGraphic );
gGraphic.pClipFuncs->DrawSprite(
&gGraphic,
&lPos,
lpSprite );
if( lAddX > 0 )
{
lPos.X++;
if( lPos.X > (320-16) )
{
lPos.X = 320-16;
lAddX = -1;
}
}
else
{
lPos.X--;
if( lPos.X < 0 )
{
lPos.X = 0;
lAddX = 1;
}
}
if( lAddY > 0 )
{
lPos.Y++;
if( lPos.Y > (200-16) )
{
lPos.Y = 200-16;
lAddY = -1;
}
}
else
{
lPos.Y--;
if( lPos.Y < 0 )
{
lPos.Y = 0;
lAddY = 1;
}
}
}
}
File_UnLoad( gpPicture );
Screen_DeInit();
}
/*!
* @brief 读入一张png图像并生成一个精灵
*
* @param fileName png文件名
* @return 一个精灵指针
*/
Sprite * Sprite_LoadImage (const char * fileName) {
Sprite * sprite = Sprite_Create();
sprite->surface = Media_LoadImage(fileName);
return sprite;
}
bool Sprite::Create(const std::string& name, bool immediate) { if (obj) Sprite_Destroy(obj); obj = Sprite_Create(name, immediate); return obj != NULL; }
/*
* pCreateBlankSprite - Create a blank sprite.
*
* Create a blank sprite and add a palette if needed
*
* returns a pointer to the sprite when successful, otherwise NULL
*/
static sprite_areainfo *
pCreateBlankSprite(const imagedata_type *pImg, size_t *pSize)
{
sprite_areainfo *pArea;
UCHAR *pucTmp;
size_t tSize;
screen_modeval uMode;
int iIndex, iPaletteEntries;
TRACE_MSG("pCreateBlankSprite");
fail(pImg == NULL);
fail(pSize == NULL);
switch (pImg->uiBitsPerComponent) {
case 1:
uMode.screen_mode = 18;
iPaletteEntries = 2;
break;
case 4:
uMode.screen_mode = 20;
iPaletteEntries = 16;
break;
case 8:
case 24:
uMode.screen_mode = 21;
iPaletteEntries = 0;
break;
default:
DBG_DEC(pImg->uiBitsPerComponent);
return NULL;
}
fail(iPaletteEntries < 0 || iPaletteEntries > 16);
/* Get memory for the sprite */
tSize = sizeof(sprite_areainfo) +
Sprite_MemorySize(pImg->iWidth, pImg->iHeight, uMode,
iPaletteEntries > 0 ? sprite_HASPAL : sprite_HASNOMASKPAL);
DBG_DEC(tSize);
pArea = xmalloc(tSize);
/* Initialise sprite area */
pArea->areasize = tSize;
pArea->numsprites = 0;
pArea->firstoffset = sizeof(sprite_areainfo);
pArea->freeoffset = sizeof(sprite_areainfo);
/* Create a blank sprite */
Error_CheckFatal(Sprite_Create(pArea, "wordimage",
iPaletteEntries > 0 ? 1 : 0,
pImg->iWidth, pImg->iHeight, uMode));
/* Add the palette */
pucTmp = (UCHAR *)pArea + pArea->firstoffset + sizeof(sprite_header);
for (iIndex = 0; iIndex < iPaletteEntries; iIndex++) {
/* First color */
*pucTmp++ = 0;
*pucTmp++ = pImg->aucPalette[iIndex][0];
*pucTmp++ = pImg->aucPalette[iIndex][1];
*pucTmp++ = pImg->aucPalette[iIndex][2];
/* Second color */
*pucTmp++ = 0;
*pucTmp++ = pImg->aucPalette[iIndex][0];
*pucTmp++ = pImg->aucPalette[iIndex][1];
*pucTmp++ = pImg->aucPalette[iIndex][2];
}
*pSize = tSize;
return pArea;
} /* end of pCreateBlankSprite */