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AtlasTexture Fix calculating rects when flipping

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(cherry picked from commit c3851b91db)
This commit is contained in:
kleonc 2022-12-17 22:07:14 +01:00 committed by Haoyu Qiu
parent f974bcf074
commit 7b196dd0ee
1 changed files with 9 additions and 16 deletions
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25
scene/resources/texture.cpp
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@ -1046,35 +1046,28 @@ bool AtlasTexture::get_rect_region(const Rect2 &p_rect, const Rect2 &p_src_rect,
return false;
}
Rect2 rc = region;
Rect2 src = p_src_rect;
if (src.size == Size2()) {
src.size = rc.size;
src.size = region.size;
}
Vector2 scale = p_rect.size / src.size;
src.position += (rc.position - margin.position);
Rect2 src_c = rc.clip(src);
if (src_c.size == Size2()) {
src.position += (region.position - margin.position);
Rect2 src_clipped = region.clip(src);
if (src_clipped.size == Size2()) {
return false;
}
Vector2 ofs = (src_c.position - src.position);
Vector2 ofs = (src_clipped.position - src.position);
if (scale.x < 0) {
float mx = (margin.size.width - margin.position.x);
mx -= margin.position.x;
ofs.x = -(ofs.x + mx);
ofs.x += (src_clipped.size.x - src.size.x);
}
if (scale.y < 0) {
float my = margin.size.height - margin.position.y;
my -= margin.position.y;
ofs.y = -(ofs.y + my);
ofs.y += (src_clipped.size.y - src.size.y);
}
Rect2 dr(p_rect.position + ofs * scale, src_c.size * scale);
r_rect = dr;
r_src_rect = src_c;
r_rect = Rect2(p_rect.position + ofs * scale, src_clipped.size * scale);
r_src_rect = src_clipped;
return true;
}