humble spoke
I'm having a super hard time wrapping my head around this. I have a top-down isometric view game and I finally got my GL camera centered and facing my player, and my mouse moving influences camera movement correctly, however after applying my rotation, my character's movement true north (-x and -y) visually only moves the camera diagonally (-y) the camera coordinates are correct though, so it's something to do with after rotation translation.
In the video is my example
`
void Camera::centerCam(Input &input, Player &player)
{
float window_offset_x = input.mouse_screen_pos_x - app_ptr->window_center_x;
float window_offset_y = input.mouse_screen_pos_y - app_ptr->window_center_y;
glm::vec3 mouse_world_pos(window_offset_x * zoom_amount, window_offset_y * zoom_amount, 0.0f);
center_x = player.pos_x + mouse_world_pos.x;
center_y = player.pos_y + mouse_world_pos.y;
origin_x = center_x - app_ptr->window_center_x;
origin_y = center_y - app_ptr->window_center_y;
std::cout << "Camera Center: (" << center_x << ", " << center_y << ")\n";
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(camera_pos.x - origin_x, camera_pos.y - origin_y, camera_pos.z);
glRotatef(45, 1, 0, 0);
glRotatef(45, 0, 0, 1);
}
`
stoic jewel