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Added various functions basic math classes. Also enabled math checks only for debug builds.

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Added set_scale, set_rotation_euler, set_rotation_axis_angle. Addresses #2565 directly.
Added an euler angle constructor for Basis in GDScript and also exposed is_normalized for vectors and quaternions.
Various other changes mostly cosmetic in nature.
This commit is contained in:
Ferenc Arn
2017-04-05 17:47:13 -05:00
parent 454f53c776
commit 9a37ff1e34
13 changed files with 217 additions and 50 deletions
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9
core/math/math_2d.cpp
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@@ -62,7 +62,8 @@ Vector2 Vector2::normalized() const {
}
bool Vector2::is_normalized() const {
return Math::isequal_approx(length(), (real_t)1.0);
// use length_squared() instead of length() to avoid sqrt(), makes it more stringent.
return Math::is_equal_approx(length_squared(), 1.0);
}
real_t Vector2::distance_to(const Vector2 &p_vector2) const {
@@ -280,7 +281,7 @@ Vector2 Vector2::cubic_interpolate(const Vector2 &p_b, const Vector2 &p_pre_a, c
// slide returns the component of the vector along the given plane, specified by its normal vector.
Vector2 Vector2::slide(const Vector2 &p_n) const {
#ifdef DEBUG_ENABLED
#ifdef MATH_CHECKS
ERR_FAIL_COND_V(p_n.is_normalized() == false, Vector2());
#endif
return *this - p_n * this->dot(p_n);
@@ -291,7 +292,7 @@ Vector2 Vector2::bounce(const Vector2 &p_n) const {
}
Vector2 Vector2::reflect(const Vector2 &p_n) const {
#ifdef DEBUG_ENABLED
#ifdef MATH_CHECKS
ERR_FAIL_COND_V(p_n.is_normalized() == false, Vector2());
#endif
return 2.0 * p_n * this->dot(p_n) - *this;
@@ -438,7 +439,9 @@ Transform2D Transform2D::inverse() const {
void Transform2D::affine_invert() {
real_t det = basis_determinant();
#ifdef MATH_CHECKS
ERR_FAIL_COND(det == 0);
#endif
real_t idet = 1.0 / det;
SWAP(elements[0][0], elements[1][1]);