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Added simple check to viewport, if matrix32 is invesile (https://github.com/godotengine/godot/issues/6296).

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This commit is contained in:
Mateusz Adamczyk 2016-10-08 12:33:10 +02:00
parent 1f9e16119f
commit 8671836b76
2 changed files with 4 additions and 1 deletions
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2
core/math/math_2d.cpp
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@ -424,7 +424,7 @@ Matrix32 Matrix32::inverse() const {
void Matrix32::affine_invert() {
float det = elements[0][0]*elements[1][1] - elements[1][0]*elements[0][1];
float det = basis_determinant();
ERR_FAIL_COND(det==0);
float idet = 1.0 / det;

3
scene/main/viewport.cpp
View file

@ -1715,6 +1715,9 @@ Control* Viewport::_gui_find_control_at_pos(CanvasItem* p_node,const Point2& p_g
}
Matrix32 matrix = p_xform * p_node->get_transform();
// matrix.basis_determinant() == 0.0f implies that node does not exist on scene
if(matrix.basis_determinant() == 0.0f)
return NULL;
if (!c || !c->clips_input() || c->has_point(matrix.affine_inverse().xform(p_global))) {