diff options
Diffstat (limited to 'scene/2d/path_2d.cpp')
-rw-r--r-- | scene/2d/path_2d.cpp | 61 |
1 files changed, 50 insertions, 11 deletions
diff --git a/scene/2d/path_2d.cpp b/scene/2d/path_2d.cpp index b5945a4562..823b8d56e3 100644 --- a/scene/2d/path_2d.cpp +++ b/scene/2d/path_2d.cpp @@ -106,18 +106,57 @@ void Path2D::_notification(int p_what) { #else const real_t line_width = get_tree()->get_debug_paths_width(); #endif - _cached_draw_pts.resize(curve->get_point_count() * 8); - int count = 0; - - for (int i = 0; i < curve->get_point_count(); i++) { - for (int j = 0; j < 8; j++) { - real_t frac = j * (1.0 / 8.0); - Vector2 p = curve->sample(i, frac); - _cached_draw_pts.set(count++, p); + real_t interval = 10; + const real_t length = curve->get_baked_length(); + + if (length > CMP_EPSILON) { + const int sample_count = int(length / interval) + 2; + interval = length / (sample_count - 1); // Recalculate real interval length. + + Vector<Transform2D> frames; + frames.resize(sample_count); + + { + Transform2D *w = frames.ptrw(); + + for (int i = 0; i < sample_count; i++) { + w[i] = curve->sample_baked_with_rotation(i * interval, false); + } } - } - draw_polyline(_cached_draw_pts, get_tree()->get_debug_paths_color(), line_width, true); + const Transform2D *r = frames.ptr(); + // Draw curve segments + { + PackedVector2Array v2p; + v2p.resize(sample_count); + Vector2 *w = v2p.ptrw(); + + for (int i = 0; i < sample_count; i++) { + w[i] = r[i].get_origin(); + } + draw_polyline(v2p, get_tree()->get_debug_paths_color(), line_width, false); + } + + // Draw fish bones + { + PackedVector2Array v2p; + v2p.resize(3); + Vector2 *w = v2p.ptrw(); + + for (int i = 0; i < sample_count; i++) { + const Vector2 p = r[i].get_origin(); + const Vector2 side = r[i].columns[0]; + const Vector2 forward = r[i].columns[1]; + + // Fish Bone. + w[0] = p + (side - forward) * 5; + w[1] = p; + w[2] = p + (-side - forward) * 5; + + draw_polyline(v2p, get_tree()->get_debug_paths_color(), line_width * 0.5, false); + } + } + } } break; } } @@ -177,7 +216,7 @@ void PathFollow2D::_update_transform() { } if (rotates) { - Transform2D xform = c->sample_baked_with_rotation(progress, cubic, loop, lookahead); + Transform2D xform = c->sample_baked_with_rotation(progress, cubic); xform.translate_local(v_offset, h_offset); set_rotation(xform[1].angle()); set_position(xform[2]); |