bool BaseSurfaceOSystem::drawSprite(int x, int y, Rect32 *rect, Rect32 *newRect, TransformStruct transform) {
BaseRenderOSystem *renderer = static_cast<BaseRenderOSystem *>(_gameRef->_renderer);
if (!_loaded) {
finishLoad();
}
if (renderer->_forceAlphaColor != 0) {
transform._rgbaMod = renderer->_forceAlphaColor;
}
// TODO: This _might_ miss the intended behaviour by 1 in each direction
// But I think it fits the model used in Wintermute.
Common::Rect srcRect;
srcRect.left = rect->left;
srcRect.top = rect->top;
srcRect.setWidth(rect->right - rect->left);
srcRect.setHeight(rect->bottom - rect->top);
Common::Rect position;
if (newRect) {
position.top = y;
position.left = x;
position.setWidth(newRect->width());
position.setHeight(newRect->height());
} else {
Rect32 r;
r.top = 0;
r.left = 0;
r.setWidth(rect->width());
r.setHeight(rect->height());
r = TransformTools::newRect(r, transform, 0);
position.top = r.top + y + transform._offset.y;
position.left = r.left + x + transform._offset.x;
position.setWidth(r.width() * transform._numTimesX);
position.setHeight(r.height() * transform._numTimesY);
}
renderer->modTargetRect(&position);
// TODO: This actually requires us to have the SAME source-offsets every time,
// But no checking is in place for that yet.
// Optimize by not doing alpha-blits if we lack alpha
if (_alphaType == TransparentSurface::ALPHA_OPAQUE && !transform._alphaDisable) {
transform._alphaDisable = true;
}
renderer->drawSurface(this, _surface, &srcRect, &position, transform);
return STATUS_OK;
}
