Refactored unnecessary Normalize, DotProduct, CrossProduct and Clamp functions

src/app/input.cpp

@@ -197,8 +197,8 @@ void CInput::EventProcess(Event& event)
         }
     }
 
-    event.motionInput = Math::Clamp(m_joyMotion + m_keyMotion, glm::vec3(-1.0f, -1.0f, -1.0f), glm::vec3(1.0f, 1.0f, 1.0f));
-    event.cameraInput = Math::Clamp(m_joyMotionCam + m_cameraKeyMotion, glm::vec3(-1.0f, -1.0f, -1.0f), glm::vec3(1.0f, 1.0f, 1.0f));
+    event.motionInput = glm::clamp(m_joyMotion + m_keyMotion, glm::vec3(-1.0f, -1.0f, -1.0f), glm::vec3(1.0f, 1.0f, 1.0f));
+    event.cameraInput = glm::clamp(m_joyMotionCam + m_cameraKeyMotion, glm::vec3(-1.0f, -1.0f, -1.0f), glm::vec3(1.0f, 1.0f, 1.0f));
 }
 
 void CInput::MouseMove(const glm::ivec2& pos)

src/graphics/engine/camera.cpp

@@ -1096,7 +1096,7 @@ bool CCamera::EventFrameFree(const Event &event, bool keysAllowed)
     else
         m_heightEye -= cameraMove.z;
 
-    m_heightEye = Math::Clamp(m_heightEye, -2.0f, 500.0f);
+    m_heightEye = glm::clamp(m_heightEye, -2.0f, 500.0f);
 
     m_terrain->AdjustToBounds(m_eyePt, 10.0f);
 
@@ -1134,7 +1134,7 @@ bool CCamera::EventFrameBack(const Event &event)
     m_addDirectionH = Math::NormAngle(m_addDirectionH);
     m_addDirectionV = Math::NormAngle(m_addDirectionV);
 
-    m_backDist = Math::Clamp(m_backDist, m_backMin, 200.0f);
+    m_backDist = glm::clamp(m_backDist, m_backMin, 200.0f);
 
     // Increase the special framework
     float centeringH = 0.0f;
@@ -1264,8 +1264,8 @@ bool CCamera::EventFrameFix(const Event &event)
 
     m_fixDirectionH = Math::NormAngle(m_fixDirectionH);
 
-    m_fixDirectionV = Math::Clamp(m_fixDirectionV, -0.5f*Math::PI, 0.25f*Math::PI);
-    m_fixDist = Math::Clamp(m_fixDist, 10.0f, 200.0f);
+    m_fixDirectionV = glm::clamp(m_fixDirectionV, -0.5f*Math::PI, 0.25f*Math::PI);
+    m_fixDist = glm::clamp(m_fixDist, 10.0f, 200.0f);
 
     if (m_cameraObj != nullptr)
     {
@@ -1346,11 +1346,11 @@ bool CCamera::EventFrameVisit(const Event &event)
 
     // ZoomIn/ZoomOut
     m_visitDist += cameraMove.z;
-    m_visitDist = Math::Clamp(m_visitDist, 20.0f, 200.0f);
+    m_visitDist = glm::clamp(m_visitDist, 20.0f, 200.0f);
 
     // Up/Down
     m_visitDirectionV += cameraMove.y;
-    m_visitDirectionV = Math::Clamp(m_visitDirectionV, -Math::PI * 0.40f, 0.0f);
+    m_visitDirectionV = glm::clamp(m_visitDirectionV, -Math::PI * 0.40f, 0.0f);
 
     float angleH = (m_visitTime / 10.0f) * (Math::PI * 2.0f);
     float angleV = m_visitDirectionV;

src/graphics/engine/engine.cpp

@@ -2019,7 +2019,7 @@ int CEngine::ComputeSphereVisibility(const Math::Matrix& m, const glm::vec3& cen
 
 bool CEngine::InPlane(glm::vec3 normal, float originPlane, glm::vec3 center, float radius)
 {
-    float distance = originPlane + Math::DotProduct(normal, center);
+    float distance = originPlane + glm::dot(normal, center);
 
     if (distance < -radius)
         return false;
@@ -3764,8 +3764,8 @@ void CEngine::Capture3DScene()
             {
                 for (int j = -3; j <= 3; j++)
                 {
-                    int xp = Math::Clamp(x + i, 0, newWidth - 1);
-                    int yp = Math::Clamp(y + j, 0, newHeight - 1);
+                    int xp = glm::clamp(x + i, 0, newWidth - 1);
+                    int yp = glm::clamp(y + j, 0, newHeight - 1);
 
                     float weight = matrix[i + 3][j + 3];
 
@@ -3780,7 +3780,7 @@ void CEngine::Capture3DScene()
 
             for (int k = 0; k < 4; k++)
             {
-                float value = Math::Clamp(color[k], 0.0f, 255.0f);
+                float value = glm::clamp(color[k], 0.0f, 255.0f);
                 blured[index + k] = static_cast<unsigned char>(value);
             }
         }
@@ -4868,10 +4868,10 @@ void CEngine::DrawShadowSpots()
             }
         }
 
-        corner[0] = Math::CrossProduct(corner[0], m_shadowSpots[i].normal);
-        corner[1] = Math::CrossProduct(corner[1], m_shadowSpots[i].normal);
-        corner[2] = Math::CrossProduct(corner[2], m_shadowSpots[i].normal);
-        corner[3] = Math::CrossProduct(corner[3], m_shadowSpots[i].normal);
+        corner[0] = glm::cross(corner[0], m_shadowSpots[i].normal);
+        corner[1] = glm::cross(corner[1], m_shadowSpots[i].normal);
+        corner[2] = glm::cross(corner[2], m_shadowSpots[i].normal);
+        corner[3] = glm::cross(corner[3], m_shadowSpots[i].normal);
 
         corner[0] += pos;
         corner[1] += pos;

src/graphics/engine/lightning.cpp

@@ -239,7 +239,7 @@ void CLightning::Draw()
     glm::vec3 p1 = m_pos;
     glm::vec3 eye = m_engine->GetEyePt();
     float a = Math::RotateAngle(eye.x-p1.x, eye.z-p1.z);
-    glm::vec3 n = Math::Normalize(p1-eye);
+    glm::vec3 n = glm::normalize(p1-eye);
 
     glm::vec3 corner[4];
     Vertex vertex[4];

src/graphics/opengl/gl33device.cpp

@@ -131,9 +131,9 @@ void CGL33Device::DebugLights()
             if (l.type == LIGHT_DIRECTIONAL)
             {
                 Gfx::VertexCol v[2];
-                v[0].coord = -Math::Normalize(l.direction) * 100.0f + glm::vec3(0.0f, 0.0f, 1.0f) * float(i);
+                v[0].coord = -glm::normalize(l.direction) * 100.0f + glm::vec3(0.0f, 0.0f, 1.0f) * float(i);
                 v[0].color = HSV2RGB(color);
-                v[1].coord =  Math::Normalize(l.direction) * 100.0f + glm::vec3(0.0f, 0.0f, 1.0f) * float(i);
+                v[1].coord =  glm::normalize(l.direction) * 100.0f + glm::vec3(0.0f, 0.0f, 1.0f) * float(i);
                 v[1].color = HSV2RGB(color);
                 while (v[0].coord.y < 60.0f && v[0].coord.y < 60.0f)
                 {
@@ -142,7 +142,7 @@ void CGL33Device::DebugLights()
                 }
                 DrawPrimitive(PrimitiveType::LINES, v, 2);
 
-                v[0].coord = v[1].coord + Math::Normalize(v[0].coord - v[1].coord) * 50.0f;
+                v[0].coord = v[1].coord + glm::normalize(v[0].coord - v[1].coord) * 50.0f;
 
                 glLineWidth(10.0f);
                 DrawPrimitive(PrimitiveType::LINES, v, 2);
@@ -192,7 +192,7 @@ void CGL33Device::DebugLights()
                 DrawPrimitive(PrimitiveType::LINE_STRIP, v, 5);
 
                 v[0].coord = l.position;
-                v[1].coord = l.position + Math::Normalize(l.direction) * 100.0f;
+                v[1].coord = l.position + glm::normalize(l.direction) * 100.0f;
                 glEnable(GL_LINE_STIPPLE);
                 glLineStipple(3.0, 0xFF);
                 DrawPrimitive(PrimitiveType::LINES, v, 2);

src/graphics/opengl/glutil.cpp

@@ -415,7 +415,7 @@ GLenum TranslateGfxBlendFunc(BlendFunc func)
 
 bool InPlane(glm::vec3 normal, float originPlane, glm::vec3 center, float radius)
 {
-    float distance = originPlane + Math::DotProduct(normal, center);
+    float distance = originPlane + glm::dot(normal, center);
 
     if (distance < -radius)
         return false;

src/level/robotmain.cpp

@@ -5526,7 +5526,7 @@ void CRobotMain::UpdateChapterPassed()
 //! Changes game speed
 void CRobotMain::SetSpeed(float speed)
 {
-    speed = Math::Clamp(speed, MIN_SPEED, MAX_SPEED);
+    speed = glm::clamp(speed, MIN_SPEED, MAX_SPEED);
 
     m_app->SetSimulationSpeed(speed);
     UpdateSpeedLabel();

src/math/func.h

@@ -93,15 +93,6 @@ inline float Max(float a, float b, float c, float d, float e)
     return Math::Max( Math::Max(a, b), Math::Max(c, d), e );
 }
 
-//! Clamps the value to a range specified by min and max
-template<typename T>
-inline T Clamp(T value, T min, T max)
-{
-    if (value < min) return min;
-    else if (value > max) return max;
-    else return value;
-}
-
 //! Returns the normalized value (0 .. 1)
 inline float Norm(float a)
 {

src/math/geometry.h

@@ -279,7 +279,7 @@ inline void LoadViewMatrix(Math::Matrix &mat, const glm::vec3 &from,
 
     // Get the dot product, and calculate the projection of the z basis
     // vector onto the up vector. The projection is the y basis vector.
-    float dotProduct = DotProduct(worldUp, view);
+    float dotProduct = glm::dot(worldUp, view);
 
     glm::vec3 up = worldUp - dotProduct * view;
 
@@ -303,7 +303,7 @@ inline void LoadViewMatrix(Math::Matrix &mat, const glm::vec3 &from,
 
     // The x basis vector is found simply with the cross product of the y
     // and z basis vectors
-    glm::vec3 right = CrossProduct(up, view);
+    glm::vec3 right = glm::cross(up, view);
 
     // Start building the matrix. The first three rows contains the basis
     // vectors used to rotate the view to point at the lookat point
@@ -320,9 +320,9 @@ inline void LoadViewMatrix(Math::Matrix &mat, const glm::vec3 &from,
     /* (3,3) */ mat.m[10] = view.z;
 
     // Do the translation values (rotations are still about the eyepoint)
-    /* (1,4) */ mat.m[12] = -DotProduct(from, right);
-    /* (2,4) */ mat.m[13] = -DotProduct(from, up);
-    /* (3,4) */ mat.m[14] = -DotProduct(from, view);
+    /* (1,4) */ mat.m[12] = -glm::dot(from, right);
+    /* (2,4) */ mat.m[13] = -glm::dot(from, up);
+    /* (3,4) */ mat.m[14] = -glm::dot(from, view);
 }
 
 //! Loads a perspective projection matrix
@@ -449,7 +449,7 @@ inline void LoadRotationMatrix(Math::Matrix &mat, const glm::vec3 &dir, float an
 {
     float cos = cosf(angle);
     float sin = sinf(angle);
-    glm::vec3 v = Normalize(dir);
+    glm::vec3 v = glm::normalize(dir);
 
     mat.LoadIdentity();
 
@@ -508,7 +508,7 @@ inline glm::vec3 NormalToPlane(const glm::vec3 &p1, const glm::vec3 &p2, const g
     glm::vec3 u = p3 - p1;
     glm::vec3 v = p2 - p1;
 
-    return Normalize(CrossProduct(u, v));
+    return glm::normalize(glm::cross(u, v));
 }
 
 //! Returns a point on the line \a p1 - \a p2, in \a dist distance from \a p1
@@ -622,8 +622,8 @@ inline glm::vec3 Transform(const Math::Matrix &m, const glm::vec3 &p)
  */
 inline glm::vec3 Projection(const glm::vec3 &a, const glm::vec3 &b, const glm::vec3 &p)
 {
-    float k = DotProduct(b - a, p - a);
-    k /= DotProduct(b - a, b - a);
+    float k = glm::dot(b - a, p - a);
+    k /= glm::dot(b - a, b - a);
 
     return a + k*(b-a);
 }

src/math/vector.h

@@ -45,24 +45,6 @@ inline bool VectorsEqual(const glm::vec3 &a, const glm::vec3 &b, float tolerance
             && IsEqual(a.z, b.z, tolerance);
 }
 
-//! Convenience function for getting normalized vector
-inline glm::vec3 Normalize(const glm::vec3 &v)
-{
-    return glm::normalize(v);
-}
-
-//! Convenience function for calculating dot product
-inline float DotProduct(const glm::vec3 &left, const glm::vec3 &right)
-{
-    return glm::dot(left, right);
-}
-
-//! Convenience function for calculating cross product
-inline glm::vec3 CrossProduct(const glm::vec3 &left, const glm::vec3 &right)
-{
-    return glm::cross(left, right);
-}
-
 //! Convenience function for calculating angle (in radians) between two vectors
 inline float Angle(const glm::vec3 &a, const glm::vec3 &b)
 {
@@ -75,12 +57,6 @@ inline float Distance(const glm::vec3 &a, const glm::vec3 &b)
     return glm::distance(a, b);
 }
 
-//! Clamps the vector \a vec to range between \a min and \a max
-inline glm::vec3 Clamp(const glm::vec3&vec, const glm::vec3&min, const glm::vec3&max)
-{
-    return glm::clamp(vec, min, max);
-}
-
 inline std::string ToString(const glm::vec3& vector)
 {
     std::stringstream s;

src/object/object_manager.cpp

@@ -176,7 +176,7 @@ float CObjectManager::ClampPower(ObjectType type, float power)
     {
         max = 1;
     }
-    return Math::Clamp(power, min, max);
+    return glm::clamp(power, min, max);
 }
 
 std::vector<CObject*> CObjectManager::GetObjectsOfTeam(int team)

src/ui/screen/screen_mod_list.cpp

@@ -332,7 +332,7 @@ void CScreenModList::FindMods()
     m_modManager->FindMods();
     if (m_modManager->CountMods() != 0)
     {
-        m_modSelectedIndex = Math::Clamp(m_modSelectedIndex, static_cast<size_t>(0), m_modManager->CountMods() - 1);
+        m_modSelectedIndex = glm::clamp(m_modSelectedIndex, static_cast<size_t>(0), m_modManager->CountMods() - 1);
     }
 }
 

test/unit/math/vector_test.cpp

@@ -58,7 +58,7 @@ TEST(VectorTest, DotTest)
 
     float expectedDot = -0.238988896477326;
 
-    EXPECT_TRUE(Math::IsEqual(Math::DotProduct(vecA, vecB), expectedDot, TEST_TOLERANCE));
+    EXPECT_TRUE(Math::IsEqual(glm::dot(vecA, vecB), expectedDot, TEST_TOLERANCE));
 }
 
 TEST(VectorTest, CrossTest)