ScriptDynamicSprite* DynamicSprite_CreateFromExistingSprite(int slot, int preserveAlphaChannel) {
int gotSlot = spriteset.findFreeSlot();
if (gotSlot <= 0)
return NULL;
if (!spriteset.doesSpriteExist(slot))
quitprintf("DynamicSprite.CreateFromExistingSprite: sprite %d does not exist", slot);
// create a new sprite as a copy of the existing one
Bitmap *newPic = BitmapHelper::CreateBitmapCopy(spriteset[slot]);
if (newPic == NULL)
return NULL;
bool hasAlpha = (preserveAlphaChannel) && ((game.spriteflags[slot] & SPF_ALPHACHANNEL) != 0);
// replace the bitmap in the sprite set
add_dynamic_sprite(gotSlot, newPic, hasAlpha);
ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
return new_spr;
}
ScriptDynamicSprite* DynamicSprite_CreateFromExistingSprite(int slot, int preserveAlphaChannel) {
int gotSlot = spriteset.findFreeSlot();
if (gotSlot <= 0)
return NULL;
if (!spriteset.doesSpriteExist(slot))
quitprintf("DynamicSprite.CreateFromExistingSprite: sprite %d does not exist", slot);
// create a new sprite as a copy of the existing one
Bitmap *newPic = BitmapHelper::CreateBitmap(spritewidth[slot], spriteheight[slot], spriteset[slot]->GetColorDepth());
if (newPic == NULL)
return NULL;
newPic->Blit(spriteset[slot], 0, 0, 0, 0, spritewidth[slot], spriteheight[slot]);
bool hasAlpha = (preserveAlphaChannel) && ((game.spriteflags[slot] & SPF_ALPHACHANNEL) != 0);
// replace the bitmap in the sprite set
add_dynamic_sprite(gotSlot, newPic, hasAlpha);
ScriptDynamicSprite *new_spr = new ScriptDynamicSprite(gotSlot);
GlobalReturnValue.SetDynamicObject(new_spr, new_spr);
return new_spr;
}