void sig::Camera2D::ApplyTransformation(Window *w)
{
if (w == nullptr) { return; }
m_origin = Vector2(w->GetWidth() / 2.0f, w->GetHeight() / 2.0f);
m_scale = Vector2(m_zoom);
m_size = Vector2(1);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, w->GetWidth(), w->GetHeight(), 0, -1, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMultMatrixf(&GetCameraMatrix()(0, 0));
}
// Movement
void FPSDebugCamera::Move(float _delta, const glm::vec3& _move) {
// Check if we are not moving at all
if (_move.x == 0 && _move.y == 0 && _move.z == 0)
return;
// Get the current matrix
GetCameraMatrix();
// Get the facing vectors from the matrix
glm::vec3 x(transform[0].x, transform[1].x, transform[2].x);
glm::vec3 y(transform[0].y, transform[1].y, transform[2].y);
glm::vec3 z(transform[0].z, transform[1].z, transform[2].z);
// Get the translation to apply
glm::vec3 translation;
translation += x * _move.x;
translation.y += _move.y; // Always go up or down globally
translation += z * _move.z;
// Apply it
position += glm::normalize(translation) * speed * _delta;
}
void Pipeline::BuildViewProjection()
{
this->mVP = GetProjectionMatrix() * GetCameraMatrix();
}
void Pipeline::BuildViewOrthographic()
{
this->mVO = GetOrthographicMatrix() * GetCameraMatrix();
}
Matrix44 GetCameraMatrix() const { Matrix44 dest; GetCameraMatrix(dest); return dest; }
