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Merge pull request #47226 from fabriceci/improve-rayshape-2D

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Bring the Raycast2D improvements to Rayshape2D
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Rémi Verschelde 2021-03-22 23:56:18 +01:00 committed by GitHub
commit e0f19287f7
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 22 additions and 6 deletions
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28
scene/resources/ray_shape_2d.cpp
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@ -42,17 +42,33 @@ void RayShape2D::_update_shape() {
}
void RayShape2D::draw(const RID &p_to_rid, const Color &p_color) {
Vector2 tip = Vector2(0, get_length());
RS::get_singleton()->canvas_item_add_line(p_to_rid, Vector2(), tip, p_color, 3);
const Vector2 target_position = Vector2(0, get_length());
const float max_arrow_size = 6;
const float line_width = 1.4;
bool no_line = target_position.length() < line_width;
float arrow_size = CLAMP(target_position.length() * 2 / 3, line_width, max_arrow_size);
if (no_line) {
arrow_size = target_position.length();
} else {
RS::get_singleton()->canvas_item_add_line(p_to_rid, Vector2(), target_position - target_position.normalized() * arrow_size, p_color, line_width);
}
Transform2D xf;
xf.rotate(target_position.angle());
xf.translate(Vector2(no_line ? 0 : target_position.length() - arrow_size, 0));
Vector<Vector2> pts;
float tsize = 4.0;
pts.push_back(tip + Vector2(0, tsize));
pts.push_back(tip + Vector2(Math_SQRT12 * tsize, 0));
pts.push_back(tip + Vector2(-Math_SQRT12 * tsize, 0));
pts.push_back(xf.xform(Vector2(arrow_size, 0)));
pts.push_back(xf.xform(Vector2(0, 0.5 * arrow_size)));
pts.push_back(xf.xform(Vector2(0, -0.5 * arrow_size)));
Vector<Color> cols;
for (int i = 0; i < 3; i++) {
cols.push_back(p_color);
}
RS::get_singleton()->canvas_item_add_primitive(p_to_rid, pts, cols, Vector<Point2>(), RID());
}