diff options
Diffstat (limited to 'scene/resources')
| -rw-r--r-- | scene/resources/bit_map.cpp | 56 | ||||
| -rw-r--r-- | scene/resources/bit_map.h | 1 |
2 files changed, 40 insertions, 17 deletions
diff --git a/scene/resources/bit_map.cpp b/scene/resources/bit_map.cpp index e4a64a1de1..b5354bc3e2 100644 --- a/scene/resources/bit_map.cpp +++ b/scene/resources/bit_map.cpp @@ -197,16 +197,14 @@ Vector<Vector2> BitMap::_march_square(const Rect2i &rect, const Point2i &start) | 4 | 8 | <- current pixel (curx,cury) +---+---+ */ - //NOTE: due to the way we pick points from texture, rect needs to be smaller, otherwise it goes outside 1 pixel - Rect2i fixed_rect = Rect2i(rect.position, rect.size - Size2i(2, 2)); Point2i tl = Point2i(curx - 1, cury - 1); - sv += (fixed_rect.has_point(tl) && get_bit(tl)) ? 1 : 0; + sv += (rect.has_point(tl) && get_bit(tl)) ? 1 : 0; Point2i tr = Point2i(curx, cury - 1); - sv += (fixed_rect.has_point(tr) && get_bit(tr)) ? 2 : 0; + sv += (rect.has_point(tr) && get_bit(tr)) ? 2 : 0; Point2i bl = Point2i(curx - 1, cury); - sv += (fixed_rect.has_point(bl) && get_bit(bl)) ? 4 : 0; + sv += (rect.has_point(bl) && get_bit(bl)) ? 4 : 0; Point2i br = Point2i(curx, cury); - sv += (fixed_rect.has_point(br) && get_bit(br)) ? 8 : 0; + sv += (rect.has_point(br) && get_bit(br)) ? 8 : 0; ERR_FAIL_COND_V(sv == 0 || sv == 15, Vector<Vector2>()); } @@ -300,15 +298,15 @@ Vector<Vector2> BitMap::_march_square(const Rect2i &rect, const Point2i &start) +---+---+ | 4 | | +---+---+ - this normally go RIGHT, but if its coming from UP, it should go LEFT + this normally go RIGHT, but if its coming from RIGHT, it should go LEFT */ if (case6s.has(Point2i(curx, cury))) { - //found, so we go down, and delete from case6s; + //found, so we go left, and delete from case6s; stepx = -1; stepy = 0; case6s.erase(Point2i(curx, cury)); } else { - //not found, we go up, and add to case6s; + //not found, we go right, and add to case6s; stepx = 1; stepy = 0; case6s.insert(Point2i(curx, cury)); @@ -510,12 +508,19 @@ Vector<Vector<Vector2> > BitMap::clip_opaque_to_polygons(const Rect2 &p_rect, fl for (int j = r.position.x; j < r.position.x + r.size.width; j++) { if (!fill->get_bit(Point2(j, i)) && get_bit(Point2(j, i))) { + fill_bits(this, fill, Point2i(j, i), r); + Vector<Vector2> polygon = _march_square(r, Point2i(j, i)); print_verbose("BitMap: Pre reduce: " + itos(polygon.size())); polygon = reduce(polygon, r, p_epsilon); print_verbose("BitMap: Post reduce: " + itos(polygon.size())); + + if (polygon.size() < 3) { + print_verbose("Invalid polygon, skipped"); + continue; + } + polygons.push_back(polygon); - fill_bits(this, fill, Point2i(j, i), r); } } } @@ -525,6 +530,13 @@ Vector<Vector<Vector2> > BitMap::clip_opaque_to_polygons(const Rect2 &p_rect, fl void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) { + if (p_pixels == 0) { + return; + } + + bool bit_value = (p_pixels > 0) ? true : false; + p_pixels = Math::abs(p_pixels); + Rect2i r = Rect2i(0, 0, width, height).clip(p_rect); Ref<BitMap> copy; @@ -534,7 +546,7 @@ void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) { for (int i = r.position.y; i < r.position.y + r.size.height; i++) { for (int j = r.position.x; j < r.position.x + r.size.width; j++) { - if (copy->get_bit(Point2(j, i))) + if (bit_value == get_bit(Point2(j, i))) continue; bool found = false; @@ -542,16 +554,21 @@ void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) { for (int y = i - p_pixels; y <= i + p_pixels; y++) { for (int x = j - p_pixels; x <= j + p_pixels; x++) { - if (x < p_rect.position.x || x >= p_rect.position.x + p_rect.size.x) - continue; - if (y < p_rect.position.y || y >= p_rect.position.y + p_rect.size.y) - continue; + bool outside = false; + + if ((x < p_rect.position.x) || (x >= p_rect.position.x + p_rect.size.x) || (y < p_rect.position.y) || (y >= p_rect.position.y + p_rect.size.y)) { + // outside of rectangle counts as bit not set + if (!bit_value) + outside = true; + else + continue; + } float d = Point2(j, i).distance_to(Point2(x, y)) - CMP_EPSILON; if (d > p_pixels) continue; - if (copy->get_bit(Point2(x, y))) { + if (outside || (bit_value == copy->get_bit(Point2(x, y)))) { found = true; break; } @@ -561,12 +578,17 @@ void BitMap::grow_mask(int p_pixels, const Rect2 &p_rect) { } if (found) { - set_bit(Point2(j, i), true); + set_bit(Point2(j, i), bit_value); } } } } +void BitMap::shrink_mask(int p_pixels, const Rect2 &p_rect) { + + grow_mask(-p_pixels, p_rect); +} + Array BitMap::_opaque_to_polygons_bind(const Rect2 &p_rect, float p_epsilon) const { Vector<Vector<Vector2> > result = clip_opaque_to_polygons(p_rect, p_epsilon); diff --git a/scene/resources/bit_map.h b/scene/resources/bit_map.h index daf24affb1..b062dd7376 100644 --- a/scene/resources/bit_map.h +++ b/scene/resources/bit_map.h @@ -67,6 +67,7 @@ public: void resize(const Size2 &p_new_size); void grow_mask(int p_pixels, const Rect2 &p_rect); + void shrink_mask(int p_pixels, const Rect2 &p_rect); void blit(const Vector2 &p_pos, const Ref<BitMap> &p_bitmap); Ref<Image> convert_to_image() const; |