[#35] Changed getter methods to be const

Signed-off-by: Tobias Frisch <tfrisch@uni-koblenz.de>

modules/camera/include/vkcv/camera/Camera.hpp

@@ -37,7 +37,7 @@ namespace vkcv {
 
         void setPerspective(float fov, float ratio, float near, float far);
 
-        const glm::mat4 getView();
+        const glm::mat4 getView() const;
 
         void getView(glm::vec3 &x, glm::vec3 &y, glm::vec3 &z, glm::vec3 &pos);
 
@@ -45,27 +45,27 @@ namespace vkcv {
 
         void lookAt(glm::vec3 position, glm::vec3 center, glm::vec3 up);
 
-        const glm::mat4& getProjection();
+        const glm::mat4& getProjection() const;
 
         void setProjection(const glm::mat4 projection);
 
-        void getNearFar(float &near, float &far);
+        void getNearFar(float &near, float &far) const;
 
         void setUp(const glm::vec3 &Up);
 
-        float getFov();
+        float getFov() const;
 
         void setFov(float fov);
 
         void updateRatio(float ratio);
 
-        float getRatio();
+        float getRatio() const;
 
         void setNearFar(float near, float far);
 
-        glm::vec3 getFront();
+        glm::vec3 getFront() const;
 
-        glm::vec3 getPosition();
+        glm::vec3 getPosition() const;
 
         void setPosition( glm::vec3 position );
 

modules/camera/src/vkcv/camera/Camera.cpp

@@ -37,17 +37,17 @@ namespace vkcv {
         pos = -mat_inv * pos;
     }
 
-    void Camera::getNearFar( float &near, float &far) {
+    void Camera::getNearFar( float &near, float &far) const {
         near = m_near;
         far = m_far;
     }
 
 
-    const glm::mat4 Camera::getView() {
+    const glm::mat4 Camera::getView() const {
         return m_view;
     }
 
-    const glm::mat4& Camera::getProjection() {
+    const glm::mat4& Camera::getProjection() const {
         return m_projection;
     }
 
@@ -55,7 +55,7 @@ namespace vkcv {
         m_projection = projection;
     }
 
-    float Camera::getFov(){
+    float Camera::getFov() const {
         return m_fov;
     }
 
@@ -69,7 +69,7 @@ namespace vkcv {
         setPerspective( m_fov, m_ratio, m_near, m_far);
     }
 
-    float Camera::getRatio(){
+    float Camera::getRatio() const {
         return 0.0f;
     }
 
@@ -87,7 +87,7 @@ namespace vkcv {
         m_projection = glm::perspective( m_fov, ratio, m_near, m_far);
     }
 
-    glm::vec3 Camera::getFront(){
+    glm::vec3 Camera::getFront() const {
         glm::vec3 direction;
         direction.x = sin(glm::radians(m_yaw)) * cos(glm::radians(m_pitch));
         direction.y = sin(glm::radians(m_pitch));
@@ -95,7 +95,7 @@ namespace vkcv {
         return glm::normalize(direction);
     }
 
-    glm::vec3 Camera::getPosition(){
+    glm::vec3 Camera::getPosition() const {
         return m_position;
     }