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author | George Marques <george@gmarqu.es> | 2021-08-18 11:03:52 -0300 |
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committer | Bastiaan Olij <mux213@gmail.com> | 2021-09-27 23:08:08 +1000 |
commit | e4ed48976a962b67e9585cc2d20d11f115ef7949 (patch) | |
tree | 7830ad6926b5cd14a91784b07c2eff5b77e3f533 /src/core/Transform2D.cpp | |
parent | ee708668944430a7f1d69e8faf7b3f3160432dc2 (diff) | |
download | redot-cpp-e4ed48976a962b67e9585cc2d20d11f115ef7949.tar.gz |
Replace bindgins to work with extensions
Diffstat (limited to 'src/core/Transform2D.cpp')
-rw-r--r-- | src/core/Transform2D.cpp | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/src/core/Transform2D.cpp b/src/core/Transform2D.cpp deleted file mode 100644 index 01565e1..0000000 --- a/src/core/Transform2D.cpp +++ /dev/null @@ -1,332 +0,0 @@ -/*************************************************************************/ -/* Transform2D.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ - -#include "Transform2D.hpp" -#include "Rect2.hpp" -#include "String.hpp" -#include "Vector2.hpp" - -#include <algorithm> - -namespace godot { - -const Transform2D Transform2D::IDENTITY; -const Transform2D Transform2D::FLIP_X = Transform2D(-1, 0, 0, 1, 0, 0); -const Transform2D Transform2D::FLIP_Y = Transform2D(1, 0, 0, -1, 0, 0); - -Transform2D::Transform2D(real_t xx, real_t xy, real_t yx, real_t yy, real_t ox, real_t oy) { - elements[0][0] = xx; - elements[0][1] = xy; - elements[1][0] = yx; - elements[1][1] = yy; - elements[2][0] = ox; - elements[2][1] = oy; -} - -Vector2 Transform2D::basis_xform(const Vector2 &v) const { - return Vector2( - tdotx(v), - tdoty(v)); -} - -Vector2 Transform2D::basis_xform_inv(const Vector2 &v) const { - return Vector2( - elements[0].dot(v), - elements[1].dot(v)); -} - -Vector2 Transform2D::xform(const Vector2 &v) const { - return Vector2( - tdotx(v), - tdoty(v)) + - elements[2]; -} -Vector2 Transform2D::xform_inv(const Vector2 &p_vec) const { - Vector2 v = p_vec - elements[2]; - - return Vector2( - elements[0].dot(v), - elements[1].dot(v)); -} -Rect2 Transform2D::xform(const Rect2 &p_rect) const { - Vector2 x = elements[0] * p_rect.size.x; - Vector2 y = elements[1] * p_rect.size.y; - Vector2 position = xform(p_rect.position); - - Rect2 new_rect; - new_rect.position = position; - new_rect.expand_to(position + x); - new_rect.expand_to(position + y); - new_rect.expand_to(position + x + y); - return new_rect; -} - -void Transform2D::set_rotation_and_scale(real_t p_rot, const Size2 &p_scale) { - elements[0][0] = ::cos(p_rot) * p_scale.x; - elements[1][1] = ::cos(p_rot) * p_scale.y; - elements[1][0] = -::sin(p_rot) * p_scale.y; - elements[0][1] = ::sin(p_rot) * p_scale.x; -} - -Rect2 Transform2D::xform_inv(const Rect2 &p_rect) const { - Vector2 ends[4] = { - xform_inv(p_rect.position), - xform_inv(Vector2(p_rect.position.x, p_rect.position.y + p_rect.size.y)), - xform_inv(Vector2(p_rect.position.x + p_rect.size.x, p_rect.position.y + p_rect.size.y)), - xform_inv(Vector2(p_rect.position.x + p_rect.size.x, p_rect.position.y)) - }; - - Rect2 new_rect; - new_rect.position = ends[0]; - new_rect.expand_to(ends[1]); - new_rect.expand_to(ends[2]); - new_rect.expand_to(ends[3]); - - return new_rect; -} - -void Transform2D::invert() { - // FIXME: this function assumes the basis is a rotation matrix, with no scaling. - // Transform2D::affine_inverse can handle matrices with scaling, so GDScript should eventually use that. - std::swap(elements[0][1], elements[1][0]); - elements[2] = basis_xform(-elements[2]); -} - -Transform2D Transform2D::inverse() const { - Transform2D inv = *this; - inv.invert(); - return inv; -} - -void Transform2D::affine_invert() { - real_t det = basis_determinant(); - ERR_FAIL_COND(det == 0); - real_t idet = 1.0 / det; - - std::swap(elements[0][0], elements[1][1]); - elements[0] *= Vector2(idet, -idet); - elements[1] *= Vector2(-idet, idet); - - elements[2] = basis_xform(-elements[2]); -} - -Transform2D Transform2D::affine_inverse() const { - Transform2D inv = *this; - inv.affine_invert(); - return inv; -} - -void Transform2D::rotate(real_t p_phi) { - *this = Transform2D(p_phi, Vector2()) * (*this); -} - -real_t Transform2D::get_rotation() const { - real_t det = basis_determinant(); - Transform2D m = orthonormalized(); - if (det < 0) { - m.scale_basis(Size2(-1, -1)); - } - return ::atan2(m[0].y, m[0].x); -} - -void Transform2D::set_rotation(real_t p_rot) { - real_t cr = ::cos(p_rot); - real_t sr = ::sin(p_rot); - elements[0][0] = cr; - elements[0][1] = sr; - elements[1][0] = -sr; - elements[1][1] = cr; -} - -Transform2D::Transform2D(real_t p_rot, const Vector2 &p_position) { - real_t cr = ::cos(p_rot); - real_t sr = ::sin(p_rot); - elements[0][0] = cr; - elements[0][1] = sr; - elements[1][0] = -sr; - elements[1][1] = cr; - elements[2] = p_position; -} - -Size2 Transform2D::get_scale() const { - real_t det_sign = basis_determinant() > 0 ? 1 : -1; - return det_sign * Size2(elements[0].length(), elements[1].length()); -} - -void Transform2D::scale(const Size2 &p_scale) { - scale_basis(p_scale); - elements[2] *= p_scale; -} -void Transform2D::scale_basis(const Size2 &p_scale) { - elements[0][0] *= p_scale.x; - elements[0][1] *= p_scale.y; - elements[1][0] *= p_scale.x; - elements[1][1] *= p_scale.y; -} -void Transform2D::translate(real_t p_tx, real_t p_ty) { - translate(Vector2(p_tx, p_ty)); -} -void Transform2D::translate(const Vector2 &p_translation) { - elements[2] += basis_xform(p_translation); -} - -void Transform2D::orthonormalize() { - // Gram-Schmidt Process - - Vector2 x = elements[0]; - Vector2 y = elements[1]; - - x.normalize(); - y = (y - x * (x.dot(y))); - y.normalize(); - - elements[0] = x; - elements[1] = y; -} -Transform2D Transform2D::orthonormalized() const { - Transform2D on = *this; - on.orthonormalize(); - return on; -} - -bool Transform2D::operator==(const Transform2D &p_transform) const { - for (int i = 0; i < 3; i++) { - if (elements[i] != p_transform.elements[i]) - return false; - } - - return true; -} - -bool Transform2D::operator!=(const Transform2D &p_transform) const { - for (int i = 0; i < 3; i++) { - if (elements[i] != p_transform.elements[i]) - return true; - } - - return false; -} - -void Transform2D::operator*=(const Transform2D &p_transform) { - elements[2] = xform(p_transform.elements[2]); - - real_t x0, x1, y0, y1; - - x0 = tdotx(p_transform.elements[0]); - x1 = tdoty(p_transform.elements[0]); - y0 = tdotx(p_transform.elements[1]); - y1 = tdoty(p_transform.elements[1]); - - elements[0][0] = x0; - elements[0][1] = x1; - elements[1][0] = y0; - elements[1][1] = y1; -} - -Transform2D Transform2D::operator*(const Transform2D &p_transform) const { - Transform2D t = *this; - t *= p_transform; - return t; -} - -Transform2D Transform2D::scaled(const Size2 &p_scale) const { - Transform2D copy = *this; - copy.scale(p_scale); - return copy; -} - -Transform2D Transform2D::basis_scaled(const Size2 &p_scale) const { - Transform2D copy = *this; - copy.scale_basis(p_scale); - return copy; -} - -Transform2D Transform2D::untranslated() const { - Transform2D copy = *this; - copy.elements[2] = Vector2(); - return copy; -} - -Transform2D Transform2D::translated(const Vector2 &p_offset) const { - Transform2D copy = *this; - copy.translate(p_offset); - return copy; -} - -Transform2D Transform2D::rotated(real_t p_phi) const { - Transform2D copy = *this; - copy.rotate(p_phi); - return copy; -} - -real_t Transform2D::basis_determinant() const { - return elements[0].x * elements[1].y - elements[0].y * elements[1].x; -} - -Transform2D Transform2D::interpolate_with(const Transform2D &p_transform, real_t p_c) const { - //extract parameters - Vector2 p1 = get_origin(); - Vector2 p2 = p_transform.get_origin(); - - real_t r1 = get_rotation(); - real_t r2 = p_transform.get_rotation(); - - Size2 s1 = get_scale(); - Size2 s2 = p_transform.get_scale(); - - //slerp rotation - Vector2 v1(::cos(r1), ::sin(r1)); - Vector2 v2(::cos(r2), ::sin(r2)); - - real_t dot = v1.dot(v2); - - dot = (dot < -1.0) ? -1.0 : ((dot > 1.0) ? 1.0 : dot); //clamp dot to [-1,1] - - Vector2 v; - - if (dot > 0.9995) { - v = Vector2::linear_interpolate(v1, v2, p_c).normalized(); //linearly interpolate to avoid numerical precision issues - } else { - real_t angle = p_c * ::acos(dot); - Vector2 v3 = (v2 - v1 * dot).normalized(); - v = v1 * ::cos(angle) + v3 * ::sin(angle); - } - - //construct matrix - Transform2D res(::atan2(v.y, v.x), Vector2::linear_interpolate(p1, p2, p_c)); - res.scale_basis(Vector2::linear_interpolate(s1, s2, p_c)); - return res; -} - -Transform2D::operator String() const { - return String(String() + elements[0] + ", " + elements[1] + ", " + elements[2]); -} - -} // namespace godot |