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Viewport: Trim parent sprites to redraw area before sorting

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This commit is contained in:
Jonathan G Rennison
2020-02-24 22:55:07 +00:00
parent 61dfca98c7
commit f563dfe194
1 changed files with 12 additions and 2 deletions
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10
src/viewport.cpp
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@@ -2996,9 +2996,19 @@ void ViewportDoDraw(const ViewPort *vp, int left, int top, int right, int bottom
if (_vd.tile_sprites_to_draw.size() != 0) ViewportDrawTileSprites(&_vd.tile_sprites_to_draw);
{
const int vd_left = _vd.dpi.left;
const int vd_top = _vd.dpi.top;
const int vd_right = _vd.dpi.left + _vd.dpi.width;
const int vd_bottom = _vd.dpi.top + _vd.dpi.height;
for (auto &psd : _vd.parent_sprites_to_draw) {
if (psd.left >= vd_right) continue;
if (psd.top >= vd_bottom) continue;
if (psd.left + psd.width <= vd_left) continue;
if (psd.top + psd.height <= vd_top) continue;
_vd.parent_sprites_to_sort.push_back(&psd);
}
}
ViewportProcessParentSprites();