65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
/*
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Dane Johnson <dane@danejohnson.org>
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LICENSE
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Couch Copyright (C) 2021 Dane Johnson
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This program comes with ABSOLUTELY NO WARRANTY; without event the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for details at
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https://www.gnu.org/licenses/gpl-3.0.html
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This is free software, and you are welcome to redistribute it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3 of the License,
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or (at your option) any later version.
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DESCRIPTION
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A transform represents various aspects of 3d space.
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*/
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#include "Transform.h"
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#include <glm/gtc/matrix_transform.hpp>
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Transform::Transform() {
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position = Vector3(0.0f);
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rotation = Vector3(0.0f);
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scale = Vector3(1.0f, 1.0f, 1.0f);
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}
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Transform::Transform(Vector3 position, Vector3 rotation) {
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this->position = position;
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this->rotation = rotation;
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this->scale = Vector3(1.0f, 1.0f, 1.0f);
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}
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Transform::Transform(Vector3 position, Vector3 rotation, Vector3 scale) {
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this->position = position;
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this->rotation = rotation;
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this->scale = scale;
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}
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Vector3 Transform::Forward() {
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return glm::vec3(RotationMatrix() * glm::vec4(0.0f, 0.0f, -1.0f, 1.0f));
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}
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Vector3 Transform::Up() {
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return glm::vec3(RotationMatrix() * glm::vec4(0.0f, 1.0f, 0.0f, 1.0f));
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}
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Vector3 Transform::Right() {
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return glm::vec3(RotationMatrix() * glm::vec4(1.0f, 0.0f, 0.0f, 1.0f));
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}
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Matrix Transform::RotationMatrix() {
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Matrix mat(1.0f);
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mat = glm::rotate(mat, this->rotation.z, Vector3(0.0f, 0.0f, 1.0f));
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mat = glm::rotate(mat, this->rotation.y, Vector3(0.0f, 1.0f, 0.0f));
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mat = glm::rotate(mat, this->rotation.x, Vector3(1.0f, 0.0f, 0.0f));
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return mat;
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}
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