diff options
| author | AJ Weeks <ajweeks@shaw.ca> | 2019-10-15 16:47:58 +0100 |
|---|---|---|
| committer | AJ Weeks <ajweeks@shaw.ca> | 2019-10-19 19:45:56 +0100 |
| commit | 59d2c71227684437231f1a252e9f1c3cf43c4f5e (patch) | |
| tree | a1b3ebfe347d51eb0b5689930633a3f96b4ccdd0 /scene/2d | |
| parent | 119bf237209414a49879fba40459f22315ab1467 (diff) | |
Add arcs to indicate angle being measured by ruler
Diffstat (limited to 'scene/2d')
| -rw-r--r-- | scene/2d/canvas_item.cpp | 14 | ||||
| -rw-r--r-- | scene/2d/canvas_item.h | 1 |
2 files changed, 15 insertions, 0 deletions
diff --git a/scene/2d/canvas_item.cpp b/scene/2d/canvas_item.cpp index b38fbfe981..d584492737 100644 --- a/scene/2d/canvas_item.cpp +++ b/scene/2d/canvas_item.cpp @@ -735,6 +735,19 @@ void CanvasItem::draw_polyline_colors(const Vector<Point2> &p_points, const Vect VisualServer::get_singleton()->canvas_item_add_polyline(canvas_item, p_points, p_colors, p_width, p_antialiased); } +void CanvasItem::draw_arc(const Vector2 &p_center, float p_radius, float p_start_angle, float p_end_angle, int p_point_count, const Color &p_color, float p_width, bool p_antialiased) { + + Vector<Point2> points; + points.resize(p_point_count); + const float delta_angle = p_end_angle - p_start_angle; + for (int i = 0; i < p_point_count; i++) { + float theta = (i / (p_point_count - 1.0f)) * delta_angle + p_start_angle; + points.set(i, p_center + Vector2(Math::cos(theta), Math::sin(theta)) * p_radius); + } + + draw_polyline(points, p_color, p_width, p_antialiased); +} + void CanvasItem::draw_multiline(const Vector<Point2> &p_points, const Color &p_color, float p_width, bool p_antialiased) { ERR_FAIL_COND_MSG(!drawing, "Drawing is only allowed inside NOTIFICATION_DRAW, _draw() function or 'draw' signal."); @@ -1152,6 +1165,7 @@ void CanvasItem::_bind_methods() { ClassDB::bind_method(D_METHOD("draw_line", "from", "to", "color", "width", "antialiased"), &CanvasItem::draw_line, DEFVAL(1.0), DEFVAL(false)); ClassDB::bind_method(D_METHOD("draw_polyline", "points", "color", "width", "antialiased"), &CanvasItem::draw_polyline, DEFVAL(1.0), DEFVAL(false)); ClassDB::bind_method(D_METHOD("draw_polyline_colors", "points", "colors", "width", "antialiased"), &CanvasItem::draw_polyline_colors, DEFVAL(1.0), DEFVAL(false)); + ClassDB::bind_method(D_METHOD("draw_arc", "center", "radius", "start_angle", "end_angle", "point_count", "color", "width", "antialiased"), &CanvasItem::draw_arc, DEFVAL(1.0), DEFVAL(false)); ClassDB::bind_method(D_METHOD("draw_multiline", "points", "color", "width", "antialiased"), &CanvasItem::draw_multiline, DEFVAL(1.0), DEFVAL(false)); ClassDB::bind_method(D_METHOD("draw_multiline_colors", "points", "colors", "width", "antialiased"), &CanvasItem::draw_multiline_colors, DEFVAL(1.0), DEFVAL(false)); ClassDB::bind_method(D_METHOD("draw_rect", "rect", "color", "filled", "width", "antialiased"), &CanvasItem::draw_rect, DEFVAL(true), DEFVAL(1.0), DEFVAL(false)); diff --git a/scene/2d/canvas_item.h b/scene/2d/canvas_item.h index 9c6799a441..581adf1396 100644 --- a/scene/2d/canvas_item.h +++ b/scene/2d/canvas_item.h @@ -305,6 +305,7 @@ public: void draw_line(const Point2 &p_from, const Point2 &p_to, const Color &p_color, float p_width = 1.0, bool p_antialiased = false); void draw_polyline(const Vector<Point2> &p_points, const Color &p_color, float p_width = 1.0, bool p_antialiased = false); void draw_polyline_colors(const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width = 1.0, bool p_antialiased = false); + void draw_arc(const Vector2 &p_center, float p_radius, float p_start_angle, float p_end_angle, int p_point_count, const Color &p_color, float p_width = 1.0, bool p_antialiased = false); void draw_multiline(const Vector<Point2> &p_points, const Color &p_color, float p_width = 1.0, bool p_antialiased = false); void draw_multiline_colors(const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width = 1.0, bool p_antialiased = false); void draw_rect(const Rect2 &p_rect, const Color &p_color, bool p_filled = true, float p_width = 1.0, bool p_antialiased = false); |