vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
66 lines
1.5 KiB
C++
66 lines
1.5 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "camera.h"
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Camera::Camera(const QVector3D &pos)
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: m_forward(0.0f, 0.0f, -1.0f),
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m_right(1.0f, 0.0f, 0.0f),
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m_up(0.0f, 1.0f, 0.0f),
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m_pos(pos),
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m_yaw(0.0f),
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m_pitch(0.0f)
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{
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}
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static inline void clamp360(float *v)
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{
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if (*v > 360.0f)
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*v -= 360.0f;
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if (*v < -360.0f)
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*v += 360.0f;
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}
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void Camera::yaw(float degrees)
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{
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m_yaw += degrees;
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clamp360(&m_yaw);
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m_yawMatrix.setToIdentity();
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m_yawMatrix.rotate(m_yaw, 0, 1, 0);
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QMatrix4x4 rotMat = m_pitchMatrix * m_yawMatrix;
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m_forward = (QVector4D(0.0f, 0.0f, -1.0f, 0.0f) * rotMat).toVector3D();
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m_right = (QVector4D(1.0f, 0.0f, 0.0f, 0.0f) * rotMat).toVector3D();
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}
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void Camera::pitch(float degrees)
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{
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m_pitch += degrees;
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clamp360(&m_pitch);
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m_pitchMatrix.setToIdentity();
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m_pitchMatrix.rotate(m_pitch, 1, 0, 0);
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QMatrix4x4 rotMat = m_pitchMatrix * m_yawMatrix;
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m_forward = (QVector4D(0.0f, 0.0f, -1.0f, 0.0f) * rotMat).toVector3D();
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m_up = (QVector4D(0.0f, 1.0f, 0.0f, 0.0f) * rotMat).toVector3D();
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}
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void Camera::walk(float amount)
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{
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m_pos[0] += amount * m_forward.x();
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m_pos[2] += amount * m_forward.z();
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}
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void Camera::strafe(float amount)
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{
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m_pos[0] += amount * m_right.x();
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m_pos[2] += amount * m_right.z();
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}
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QMatrix4x4 Camera::viewMatrix() const
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{
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QMatrix4x4 m = m_pitchMatrix * m_yawMatrix;
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m.translate(-m_pos);
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return m;
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}
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