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draw fish bones for Path2D and Path3D

These fish bones are add to indicate the direction and local transforms alone the path.
This commit is contained in:
Yaohua Xiong
2022-11-13 08:24:54 +08:00
parent 63578e208c
commit 9bdc0cb16f
4 changed files with 116 additions and 35 deletions

View File

@@ -1075,18 +1075,36 @@ void RendererCanvasCull::canvas_item_add_polyline(RID p_item, const Vector<Point
void RendererCanvasCull::canvas_item_add_multiline(RID p_item, const Vector<Point2> &p_points, const Vector<Color> &p_colors, float p_width) {
ERR_FAIL_COND(p_points.size() < 2);
Item *canvas_item = canvas_item_owner.get_or_null(p_item);
ERR_FAIL_COND(!canvas_item);
Item::CommandPolygon *pline = canvas_item->alloc_command<Item::CommandPolygon>();
ERR_FAIL_COND(!pline);
if (true || p_width <= 1) {
#define TODO make thick lines possible
// TODO: `canvas_item_add_line`(`multiline`, `polyline`) share logic, should factor out.
if (p_width <= 1) {
Item *canvas_item = canvas_item_owner.get_or_null(p_item);
ERR_FAIL_COND(!canvas_item);
Item::CommandPolygon *pline = canvas_item->alloc_command<Item::CommandPolygon>();
ERR_FAIL_COND(!pline);
pline->primitive = RS::PRIMITIVE_LINES;
pline->polygon.create(Vector<int>(), p_points, p_colors);
} else {
if (p_colors.size() == 1) {
Color color = p_colors[0];
for (int i = 0; i < p_points.size() >> 1; i++) {
Vector2 from = p_points[i * 2 + 0];
Vector2 to = p_points[i * 2 + 1];
canvas_item_add_line(p_item, from, to, color, p_width);
}
} else if (p_colors.size() == p_points.size() >> 1) {
for (int i = 0; i < p_points.size() >> 1; i++) {
Color color = p_colors[i];
Vector2 from = p_points[i * 2 + 0];
Vector2 to = p_points[i * 2 + 1];
canvas_item_add_line(p_item, from, to, color, p_width);
}
} else {
ERR_FAIL_MSG("Length of p_colors is invalid.");
}
}
}